106792187-Hướng-dẫn-học-HYSYS-va-Ứng-dụng-vao-mo-phỏng

8/13/2019 106792187-Hng-dn-hc-HYSYS-va-ng-dng-vao-mo-phng

1/650

H!NG D$N H&CHYSYS

Nguy(n Th,Minh Hi.n /H Bch Khoa H N0i

www.thuvien247.net
http://www.thuvien247.net/http://www.thuvien247.net/


2/650

1

2 - Cc dng vt ch#t vdng n%ng l'(ng

2.1 Dng vt ch#t............................................................................ 2

2.1.1 Worksheet Tab ........................................................................ 3

2.1.2 Attachments Tab ......................................................................9

2.1.3 Dynamics Tab ..........................................................................9

2.1.4 User Variables Tab...................................................................9

2.2 Dng n%ng l'(ng.................................................. 10

2.2.1 Stream Tab............................................................................. 10

2.2.2 Unit Ops Tab........................................................................... 11

2.2.3 Dynamics Tab ................................................................. 11

2.2.4 User Variables Tab................................................................. 11

www.thuvien247.net


3/650


4/650

3

c th0lIa chLn cc tnh ch4t v thnh ph5n c6a dng muBn sao chp

vo dng %ang thi;t lp. Cc phm vCi cc m8i tn mu xanh l cy /

bn tri c6a Status Barl cc phm View Upstream Operation(Xem

thi;t b2vn hnh tr&Cc dng) v View Downstream Operation(Xem

thi;t b2vn hnh sau dng).M8i tn h&Cng v: bn tri xc %2nh v2 tr thi;t b2 vn hnh tr&Cc

dng v m8i tn h&Cng v:bn ph+i xc %2nh v2tr thi;t b2vn hnh

sau dng. N;u th4y m)t dng gMn vCi m)t thi;t b2vn hnh, c th0

chLn cc phm ny %0m/cc dng tr&Cc v sau g5n nh4t %Bi vCi

thi;t b2vn hnh. N;u dng khng k;t nBi vCi m)t thi;t b2vn hnh

no /%i0m cuBi dng tr&Cc v dng sau, th cc phm ny sK m/

m)t khBi nguyn li#u hay s+n phNm.2.1.1. Worksheet Tab

Worksheet tab c ba page c sFn hi0n th2 cc thng tin lin quan%;n cc tnh ch4t c6a dng. Cc trang ny l: Conditions,Propertiesv Compositions.

Hnh d&Ci %y bi0u diOn c


5/650

4

Conditions Page hi0n th2 t4t c+cc thng tin dng mPc %2nh khi n

%&'c bi0u diOn trong trang Workbook c6a cc dng vt ch4t. Tn v

cc gi tr2hi#n th-i c6a cc thng sB%&'c bi0u diOn nh&sau:

Stream Name

Vapour/Phase Fraction Temperature PressureMolar FlowMass FlowLiqVol FlowMolar EnthalpyMolar EntropyHeat Flow

HYSYS s


6/650

5

Cc gi tr2c6a dng c th0c sFn trong trang Conditionhay trongWorkbook. Thay %Di trong m)t phSm vi sK %&'c ph+n nh quaFlowsheet (l&u trnh).

Ch rJng khi Workbook hi0n th2 b+ng %Pc tnh c6a dng, cc

trang Conditions, Properties v Compositionsc8ng sKbi0u diOn gitr2cho cc %Pc tnh pha ring lT. HYSYS c th0hi0n th2 ln %;n 5pha khc nhau.

Overall Vapour Liquid AqueousSecond Liquid

Mixed LiquidV d=, n;u m/r)ng chi:u r)ng c6a b+ng hi0n th2tnh ch4t dng /trn, sKnhn th4y b+ng hi0n th2 nh& trong hnh sau. Trong tr&-ngh'p ny, cc tnh ch4t c6a pha h(i v pha l,ng %&'c hi0n th2 bncSnh cc tnh ch4t dng tDng. N;u c m)t pha l,ng khc th n c8ngsK%&'c bi0u diOn.

Q(n gi+n h(n vi#c m/r)ng b+ng hi0n th2, c8ng c th0s


7/650

6

Properties Page

C


8/650

7

Composition Page

ChLn Composition page trn Worksheet tab %0 m/ trang

Compositionc6a dng vt ch4t. C th0%2nh r hay thay %Di thnh

ph5n dng bJng cch nh4p vo phm Edit hoPc nhp vo gi tr2

trong dng dR li#u v b4m phm Enter. Cc thao tc ny sK nhpcc c4u t


9/650


10/650

9

Notes Page

C th0s


11/650

10

2.2. Dng n%ng l'(ng

Dng nUng l&'ng %&'c bi0u diOn bJng m8i tn mu %, trong ToolPalete. Ph&(ng php %0 nhp m)t dng nUng l&'ng l b4m vo

phm bi0u t&'ng c trong Object Palette v %&a sang PFD. Ph&(ngphp ny ngay lp t@c cho php truy cp ngay vo giao di#n hi0n th2thu)c tnh c6a dng nUng l&'ng. C8ng c th0m/b+ng hi0n th2dngnUng l&'ng trong WorkbookbJng cch nhMp %p vo lin k;t vCidng nUng l&'ng.

B+ng hi0n th2dng nUng l&'ng ch@a 4 tabcho php xc %2nh ccgi tr2c6a dng, xem cc %Bi t&'ng m dng %nh km v %2nh rcc thng tin %)ng. Cc tab ny l: Streams, Uni t Ops, Dynamics

v User Var iables.

C8ng nh& %Bi vCi dng vt ch4t, b+ng hi0n th2 dng nUng l&'ngc8ng c cc phm View Upstream Operationv View DownstreamOperation, cho php xem thi;t b2vn hnh dng %ang k;t nBi. Tuynhin, dng nUng l&'ng khc vCi dng vt ch4t /chV, khi khng ck;t nBi tr&Cc hay sau no vCi dng (m %i:u ny r4t hay x+y ra %BivCi dng nUng l&'ng) th phm t&(ng @ng sKkhng hoSt %)ng.

2.2.1. Stream Tab

TE tabny, c th0%2nh r tn dng (Stream Name) v dng nhi#t(Heat Flow). Ngoi ra, c8ng c th0chuy0n dng hi#n th-i sang m)tdng vt ch4t, bJng cch lIa chLn phm Conver t to Mater ial. Khichuy0n sang dng vt ch4t, sKm4t t4t c+c+cc thng tin hi#n th-ic6a dng, ngoSi trE tn dng. Hnh d&Ci bi0u diOn Stream tabc6agiao di#n hi0n th2thu)c tnh dng nUng l&'ng.

Biu t$%ngdng nSngl$%ng (mu 7n,ngoOi trDtn

dng

www.thuvien247.net


12/650

11

2.2.2. Unit Ops Tab

Uni t OpsTabhi0n th2tn (Names) v loSi (Type)c6a t4t c+cc %Bi

t&'ng %&'c %nh km. C+ cc thi;t b2 vn hnh hay cc ph5n t


13/650

1

3-Cc thi*t b,truy.n nhi0t

3.1 Air Cooler..................................................................................... 2

3.1.1 Theory........................................................................................ 23.1.2 Design Tab ................................................................................ 3

3.1.3 Rating Tab................................................................................. 5

3.1.4 Worksheet Tab ......................................................................... 6

3.1.5 Performance Tab........................................................................ 6

3.1.6 Dynamics Tab ........................................................................... 7

3.1.7 Air Cooler Example ................................................................... 7

3.2 Cooler/Heater............................................................................. 9

3.2.1 Theory........................................................................................ 9

3.2.2 Design Tab ................................................................................9

3.2.3 Rating Tab................................................................................ 10

3.2.4 Worksheet Tab ..........................................................................11

3.2.5 Performance Tab.................................................................... 11

3.2.6 Dynamics Tab .......................................................................... 13

3.2.7 Example - Gas Cooler........................................................... 13

3.3 Heat Exchanger .......................................................................... 15

3.3.1 Theory.................................................................................. 15

3.3.2 Design Tab ............................................................................. 16

3.3.3 Rating Tab................................................................................ 26

3.3.4 Worksheet Tab ........................................................................ 38

3.3.5 Performance Tab...................................................................... 38

3.3.6 Heat Exchanger Examples....................................................... 40

3.4 Fired Heater (Furnace) ............................................................. 43

3.5 LNG............................................................................................ 433.5.1 Design Tab .............................................................................. 43

3.5.2 Rating Tab................................................................................ 53

3.5.3 Worksheet Tab ........................................................................ 53

3.5.4 Performance Tab..................................................................... 53

3.5.5 Dynamics Tab .......................................................................... 56

3.5.6 HTFS-MUSE Tab ..................................................................... 56

3.5.7 LNG Example........................................................................ 72

www.thuvien247.net


14/650

2

3.1. Air Cooler (lm mt b1ng khng kh)

Air Coolers


15/650

3

Nhi#t nUng thi;t b2 trao %Di nhi#t, Q %&'c xc %2nh b/i h# sB trao

%Di nhi#t ton ph5n, di#n tch b:mPt trao %Di nhi#t v %)chnh l#ch

nhi#t %):

Q = - UADTLMFt

Trong 7:

U = h6sItruyTn nhi6t chung

A = di6n tch bTm8t trao 7Ei nhi6t

DTLM = logarit 74chnh l6ch nhi6t 74(LMTD)

Ft = h6sIhi6u ch@nh

H#sBhi#u chYnh LMTD, Ft %&'c tnh ton tEc4u trc hnh hLc v

c4u tSo thi;t b2lm lSnh bJng khng kh.

3.1.2. Design tab

GWm 4 trang: Connections, Parameters, User Variables v Notes.

Connections Page

Trang ny cung c4p tn nguyn li#u v dng h(i qua thi;t b2 Air

Cooler, c th0thay %Di tn trong m=c Name

www.thuvien247.net


16/650

4

Parameters Page

Trong trang Parameters, cc thng tin sau sK%&'c hi0n th2:

Thng s2 M t3

Delta P Q) gi+m p DP c6a qu trnh c th0 %&'c xc%2nh tr&Cc. DP c th0%&'c tnh ton n;u cungc4p c+ hai gi tr2 p su4t dng vo v dng ra.Khng c %)gi+m p lin quan vCi dng khngkh. p su4t khng kh qua thi;t b2 lm lSnh gi+%2nh bJng p su4t kh quy0n.

UA UA bJng tch c6a h#sBtruy:n nhi#t ton ph5n vtDng di#n tch b: mPt trao %Di nhi#t. Hi#u su4tthi;t b2 t[ l#vCi %) chnh l#ch nhi#t %) logarit,

trong % UA l h#sBt[l#. UA c8ng c th0%&'cxc %2nh tr&Cc hoPc tnh ton bJng Hysys.

Configuration Danh sch ko th+ configuration hi0n th2 sI sMpx;p cc Bng trong thi;t b2 lm lSnh bJng khngkh. C b+y loSi thi;t b2c4u tSo khc nhau %0lIachLn. Hysys sK%2nh r h#sBhi#u chYnh, FtdIatrn c4u hnh thi;t b2trao %Di nhi#t

Inlet/Exit AirTemperatures

Nhi#t %)dng khng kh vo v ra c th0%&'cxc %2nh tr&Cc hoPc tnh ton b/i Hysys

User Var iables Page

Trang ny gip attach code v customize cho case m ph,ng HysysbJng cch thm cc bi;n User Variables. Thng tin chi ti;t, xemch&(ng User Variablestrong Customization Guide.

www.thuvien247.net


17/650

5

Notes Page

Trang ny cho php ghi ch hoPc %nh d4u AIR COOLER v casem ph,ng.

3.1.3. Rating Tab

GWm hai trang Sizing v NozzlesSizing Page

Trong trang ny hi0n th2thng tin v:quSt cho thi;t b2Air Cooler:

Thng s2qu5t M t3

Number of Fans Xc %2nh sBl&'ng quSt trong thi;t b2lm lSnh

Speed TBc %)quSt

DemandedSpeed

TBc %) yu c5u c6a quSt. Trong m ph,ngt\nh, n chnh bJng tBc %) c6a quSt. TBc %)yu c5u %&'c tnh ton tE cc thng tin v:

quSt hoPc do ng&-i s


18/650

6

Fan Air Flow = SpeedxDesign Flow /Design Speed

MVi quSt phn phBi dng khng kh qua thi;t b2lm lSnh. TDngdng khng kh %&'c tnh ton nh&sau:

Total Air Flow = ]Fan Air Flow

3.1.4.Worksheet tab

Worksheet Tabch@a ton b)cc thng tin v:dng qu trnh quathi;t b2lm lSnh bJng khng kh Air cooler. Cc trang Conditions,Properties, Compositions ch@a cc thng tin tE cc trang t&(ng@ng c6a Worksheet Tab v: cc thu)c tnh c6a dng. Trang PFSpecsc tm tMt cc thu)c tnh c6a dng trong Dynamics Tab.

3.1.5. Performance Tab

C cc trang hi0n th2k;t qu+tnh ton c6a Air Cooler.Results Pages

Cc thng tin tEResults Page%&'c chYra d&Ci %y:

K6t qu3 M t3

Working FluidDuty

xc %2nh sI thay %Di nUng su4t c6a dng vov dng ra

Hprocess, in +Duty =Hprocess, out

LMTDCorrectionFactor, Ft

H#sBhi#u chYnh s


19/650

7

3.1.6. Dynamics Tab

N;u %ang m ph,ng t\nh, khng th0 thay %Di gi tr2cc trang truy

cp qua Tab ny. Q0c thng tin chSy Cooler v Heater trn m

ph,ng %)ng, xem chi ti;t /ti li#u Dynamic Modeling Guide.

3.1.7. V d2(Air Cooler Example)

M)t Air Coolers


20/650

8

AIR COOLER [AC-100]

Tab [Page] Input Area Gi tr,nh7p vo

Design[Connections]

Feed Feed

Product Product

Design[Parameters]

Delta P 1.2 psiConfiguration 1 tube row, 1 pass

Air Intake Temperature 77 F

Air Outlet Temperature 86 F

3. S


21/650

9

3.2. Cooler / HeaterL thi;t b2trao %Di nhi#t m)t chi:u. Dng vo %&'c lm lSnh hoPcgia nhi#t %0%St %&'c %i:u ki#n yu c5u dng ra. Dng nUng l&'ngh4p th= (hoPc cung c4p) do chnh l#ch Enthalpy giRa hai dng.

Cng c= m ph,ng ny hRu ch khi chY quan tm tCi dng nUngl&'ng yu c5u bao nhiu %0lm lSnh hoPc gia nhi#t dng qu trnh,m khng quan tm %;n %i:u ki#n khc.

3.2.1. Nguyn l

Cooler v Heater s


22/650

10

Parameters Page

Parametersp d=ng tnh %)gi+m p Delta P qua thi;t b2v hi#u

su4t c6a dng nUng l&'ng. C+%)gi+m p v dng nUng l&'ng c

th0khai bo trIc ti;p hoPc %&'c xc %2nh thng qua cc dng. Giao

di#n Parameters Pagenh&trong hnh sau:

C th0cung c4p gi tr2Negative Duty, tuy nhin ch rJng

- VCi Cooler, Negative Duty ngh\a l hi#u su4t gia nhi#t dng vo.- VCi Heater, Negative Duty ngh\a l hi#u su4t lm lSnh dng vo.

User Var iables Page

Trang User Variables cho php lin k;t code v customize case mph,ng bJng Hysys bJng cch thm User Variables. Q0 thm thngtin ci %Pt Option ny, xem ch&(ng User Variables trongCustomization Guide

Notes Page

Trang ny cho php ghi lSi hoPc %nh d4u cc quan h#c6a Cooler,Heater v case m ph,ng c6a bSn.

3.2.3. Rating Tab

Nozzles Page

_trang ny, c th0khai bo cc thng sBc6a cc vi phun cho c+dng vo v dng ra lin k;t vCi Cooler hoPc Heater. B/i v khi m

ph,ng %)ng c th0c5n thm cc vi phun thch h'p vo Cooler hayHeater, thng tin chi ti;t xem Chapter 4- Heat Transfer Equiqmentc6a Dynamics Modeling Guide.

Ch@c thcungc)p cc thng tinm8c 70nh khi sCdXng m ph


23/650

11

Heat Loss Page

Thng tin v:tDn th4t nhi#t thch h'p vCi m hnh %)ng, xem trongDynamic Modeling Guide.

3.2.4. Worksheet Tab

Trang ny ch@a thng tin tm tMt c6a giao di#n thu)c tnh c6a t4t c+cc dng lin k;t vCi thi;t b2. Cc trang Conditions, Properties, vComposition ch@a cc thng tin chLn lLc tE cc trang t&(ng @ngc6a Worksheet Tab trong giao di#n thu)c tnh. Trang PF Specsch@a k;t qu+c6a stream property view c6a m hnh %)ng

3.2.5. Performance Tab

Ch@a cc trang hi0n th2thng tin %&'c tnh ton c6a cc dng.

Performance parameters gWm cc thu)c tnh sau c6a dng: Pressure

Temperature

Vapour Fraction

Enthalpy

MLi thng tin hi0n th2trn Performance Tab th chY%Lc %&'c mkhng th0s


24/650


25/650


26/650

14

4. Q)gi+m p 15 psi %&'c xc %2nh trong trang Parameters.

5. Chuy0n tCi trang Conditions c6a Worksheet tab. Dng ra E-1

hon ton khng bi;t, gi tr2nhi#t nUng ch&a bi;t. Dng m)t bc tI

do duy tr b/i thng sB nhi#t %) dng ra E-1 l -105F. Hysys sK

tnh ton, duy tr %i:u ki#n dng ra %0%St nhi#t nUng lm lSnh c5n

thi;t. Cc thng sB%&'c chYra /b+ng d&Ci %y:

Name E-1 Inlet E-1 Outlet

Temperature [F] 60.0000 -105.0000

Pressure [psia] 600.0000

Molar Flow [lbmole/hr] 100.0000

6. K;t qu+chYra trong Conditions page c6a Worksheet tab

Biu t$%ng Cooler

Hi6u su)t lOnh yuc?u c;a dng lOnhvo E-1 chnhbRng hi6u su)tdng nng E-1

Hi6u su)t ny c*ng7$%c hin th0trn

Parameterspagec;a Design tabtrong COOLER

property view

www.thuvien247.net


27/650

15

3.3 Thi*t b,trao 45i nhi0t

Heat Exchanger (Thi;t b2 trao %Di nhi#t) trong Hysys thIc hi#ntnh ton cn bJng vt ch4t v cn bJng nUng l&'ng. Cng c= m

ph,ng ny c tnh linh hoSt, gi+i quy;t cc v4n %:v:nhi#t %), psu4t, dng nhi#t nUng (bao gWm tDn th4t nhi#t do m4t mt v r rY),dng vt ch4t

Trong HYSYS, chLn cng c= Heat Exchanger (thi;t b2 trao %Dinhi#t) %0 tnh ton, phn tch. LIa chLn bao gWm m hnh thi;t k;

phn tch giCi hSn, m hnh l t&/ng (Ft = 1), m hnh t\nh, mhnh %)ng %&'c s


28/650

16

Trong 7 U: H6sItruyTn nhi6t ton ph?n

A: Di6n tch bTm8t truyTn nhi6t

DTLM: Chnh l6ch nhi6t 74logarit (LMTD)

Ft: H6sIhi6u ch@nh LMTD

L&u rJng h# sB truy:n nhi#t v di#n tch b: mPt truy:n nhi#tth&-ng %&'c k;t h'p thnh %Si l&'ng UA %&'c s


29/650

17

TEdanh sch ko th+chLn ph&(ng php tnh cho thi;t b2 trao %Dinhi#t. C cc m hnh trao %Di nhi#t sau %y:

Exchanger Design (Endpoint) Exchanger Design (Weighted)

Steady State Rating Dynamic Rating

C 2 loSi tDn th4t nhi#t xc %2nh

Heat LeakHao tDn nUng su4t dng lSnh do r rY. NUng su4ttUng ph+n nh sItUng nhi#t %).

Heat Loss Hao tDn nUng su4t dng nng do m4t mt. NUngsu4t gi+m ph+n nh sIgi+m nhi#t %).

T4t c+ cc m hnh thi;t b2 trao %Di nhi#t %&'c s


30/650

18

ChLn m hnh End point, c cc tham sBsau:

Tham s2End point M t3

Chnh l#ch p su$ttrong vngoi &ng

Q)chnh p su4t DP c6a hai dng trongv ngoi Bng c6a thi;t b2 trao %Di nhi#t

%&'c xc %2nh. N;u bSn khng xc %2nh%&'c gi tr2Delta P, Hysys sK tnh tonchng tEp su4t c6a dng.

Passes

BSn lIa chLn Hysys thIc hi#n cc phptnh ton, cc thao tc trn CounterCurrent (l t&/ng vCi Ft=1) hoPc sBBng.SB l&'ng cc Bng xc %2nh l sBnguyntE1 %;n 7. Khi sBBng xc %2nh, HysyssK tnh ton cc thng sB thch h'p cho

thi;t k;. Gi tr2 th4p h(n 0.8 t&(ng @ngthi;t k; s


31/650

19

B+ng d&Ci %y m t+cc m=c th0hi#n trong giao di#n:

M=c (Item) M t+

Heat Loss/Leak

BSn c th0%2nh r c hay khng c tDnth4t nhi#t bJng cch chLn phm t&(ng @ng.

Nt None%&'c mPc %2nh. C hai lIa chLntDn th4t nhi#t khc:

Extremes (%i0m cIc tr2) : Trong dngnng, nhi#t l&'ng tDn th4t %&'c xem xt/n(i nhi#t %) cao nh4t. B+n ch4t, %Ynhc6a %&-ng cong nhi#t chuy0n d2ch theol&'ng nhi#t tDn th4t. Qy l diOn bi;n tWit# nh4t c th0. Trong dng lSnh, l&'ngnhi#t tUng /n(i nhi#t %)th4p nh4t

Proportional (t[ l#): L&'ng nhi#t tDnth4t %&'c phn phBi trn ton b) cckho+ng

Tubeside andShellside Delta P

Q)chnh p DP trong v ngoi Bng c6athi;t b2trao %Di nhi#t c th0%&'c xc %2nh/%y. N;u bSn khng %2nh r gi tr2DP,Hysys sKtnh ton chng tEp su4t h(i cB%2nh

UA

L tch c6a h#sBtruy:n nhi#t ton ph5n vtDng ton b) di#n tch b: mPt trao %Dinhi#t. Hi#u su4t thi;t b2trao %Di nhi#t t[l#vCi chnh l#ch nhi#t %)logarit. UA c th0%&'c xc lp hoPc tnh ton bJng Hysys

VCi mVi loSi thi;t b2trao %Di nhi#t, cc thng sBd&Ci %y %&'c hi0nth2(nh&ng Pass Namec th0%&'c bi;n %Di)

www.thuvien247.net


32/650

20

Individual HeatCurve Details

M t3

Pass NameNhn dSng dng trong v ngoi Bng theonh& tn m bSn cung c4p / ConnectionsPage

IntervalsSB l&'ng cc %oSn c th0 %2nh r. VCi sIthay %Di nhi#t %) khng tuy;n tnh, c5nnhi:u %oSn h(n

Dew/bubble point

ChLn vo h)p thoSi ny %0 thm vo m)t%i0m bLt hay %i0m s&(ng trn %&-ng congnhi#t. N;u c sI chuy0n pha x+y ra, h)pthoSi thch h'p %&'c chLn.

C 3 lIa chLn cho Step Type trong Individual Heat Curve Details

Step Type M t3

Equal Enthalpy T4t c+cc %oSn c sIthay %Di enthalpy

Equal Temperature T4t c+cc %oSn c sIthay %Di nhi#t %)

Auto Interval

Hysys sK xc %2nh v2 tr cc %i0m nnthm vo %&-ng cong nhi#t. Qy lthi;t k; %0 tBi thi0u ha cc lVi, s


33/650

21

th0%nh gi thi;t b2 trao %Di nhi#t s


34/650

22

End Pointcho m ph,ng %)ng nh&ng vbn c th0s


35/650

23

Solver Group

Trong h)p Solver Groupc ch@a cc thng sBsau :

Solver Parameters Chi ti6t

Tolerance Thi;t lp sai sBtnh tonCurent error

Khi sai sBnh,h(n sai sBtnh ton cho php,k;t qu+%&'c xem xt %0h)i t=v:m)t %i0m

Iterations

Hi0n th2 vng lPp ngoi. _ vng lPp ngoi%&-ng cong nhi#t %&'c cp nht v thIchi#n cc tnh ton cc %Si l&'ng %Pc tr&ng.Cc tnh ton khng c cc %i:u ki#n rng

bu)c chPt chK%&'c tnh ton trong vng lPptrong. Cc %i:u ki#n rng bu)c c8ng sK%&'c

xem xt trong vng lPp trong.

Unknown Var iables Group

Hysys sK li#t k t4t c+ cc bi;n ch&a bi;t theo cc thng sB%&'c

nhp. Khi bi ton % %&'c gi+i quy;t, gi tr2 c6a cc bi;n ny sK

%&'c hi0n th2.

Specif ication Group

Ch rJng vi#c xc %2nh Heat Balance(%&'c xc %2nh tE0 kJ/h) l

%i:u ki#n bMt bu)c. Duty Errorc th0b,qua.

Khi khng xc %2nh Heat Balancec th0xc %2nh t4t c+bBn dng

trao %Di nhi#t, Hysys sKtnh sai sBcn bJng nhi#t, sKhi0n th2gi tr2

hi#n th-i trong h)p thoSi Specifications.

The UA l thng sB mPc %2nh. Hysys hi0n th2gi tr2ny nh&m)t

%Si l&'ng thng d=ng. C th0s


36/650

24

Summary Page dng %0 xc %2nh cc thng sB Active hoPc

Estimate. Gi tr2Spec Valuec8ng th0hi#n trn trang ny.

Ch rJng thng tin hi0n th2trn Specification view c8ng hi0n th2

trn Specifications group.

T4t c+cc thng sBsKthu)c m)t trong ba loSi sau:

Specification Type M T3

Active Active l m)t thut ton h)i t=. L&u rJngactive lun lun c gi tr2g5n %ng ban %5u(khi chLn Active, hysys sKtI%)ng chLn

Estimate). Active c m)t bc tIdo.Estimate Estimate %&'c coi l thng sBkhng hoSt

%)ngv thut ton h)i t=khng %p @ng. Q0s


37/650

25

cc thao tc chLn vo cc t&(ng @ng, c th0th


38/650


39/650

27

Trong ph5n Configuration c th0lIa chLn ki0u Bng %0thi;t k;thi;t

b2gia nhi#t, bao gWm:

Field M t3

Number of Shellsin Series

Cc v,mMc nBi ti;p

Number of Shellsin Parallel

Cc v,%&'c mMc song song

L&u : hi#n tSi nhi:u v,mMc song songkhng %&'c hVtr'trong hysys

Tube Passes perShell

SBBng trong m)t chm v th&-ng l 2n Bng

ExchangerOrientation

LIa chLn %Pt Bng nJm ngang hay thang

%@ng. ChY %&'c s


40/650

28

Tuy nhin, trong m ph,ng %)ng n %&'c s


41/650

29

Trong ph5n Shell and Tube Bundle c th0 lIa chLn ki0u v, %0

thi;t k;thi;t b2gia nhi#t. Cc m=c sau sK%&'c s


42/650

30

Tube

N;u chLn phm Tube, cc thng tin v:hnh dSng c6a Bng trong mVi

v,sK%&'c xc %2nh:

Trong m=c Dimensionshi0n th2cc thng sBhnh hLc c6a Bng :Field M t3

Outer TubeDiameter (OD)

Inner TubeDiameter (ID)Tube Thickness

Hai trong sBba thng sBph+i %&'c xc %2nh%0%Pc tr&ng cho kch th&Cc c6a Bng.

Tube Length

Chi:u di truy:n nhi#t c6a m)t Bng trong

mVi v,trao %Di nhi#t. L&u rJng gi tr2nykhng ph+i l chi:u di thIc c6a Bng

Trong m=c Tube Propertieshi0n th2%Pc tnh kim loSi lm Bng:

Q)cPn bNn c6a Bng. Q)dbn nhi#t Nhi#t dung ring c6a thnh Bng, Cp KhBi l&'ng ring c6a thnh Bng

Parameters Page

Parameters Page c6a Rating tab %&'c dng %0 xc %2nh kchth&Cc thi;t b2 trong m ph,ng %)ng. C hai ch; %) l Basic vDetail. VCi Basic model ph+i xc %2nh h# sB trao %Di nhi#t ton

ph5n UA v %) gi+m p dLc theo Bng v v,. VCi Detai led modelc5n ph+i xc %2nh hnh dSng v cc h#sB truy:n nhi#t giRa Bng vv, trong thi;t b2 trao %Di nhi#t. Khi bi ton %&'c gi+i quy;t theo

m)t trong hai m hnh trn, cc tham sB trong Parameters Pageph+i %&'c %i:n %5y %6.

www.thuvien247.net


43/650

31

Basic M odel

Khi lIa chLn Basic Model trong Parameters Page,trong m

ph,ng %)ng, sKhi0n th2giao di#n sau:

Trong m=c Dimensionsc cc thng tin sau:

Th0tch Bng (Tube Volume) Th0tch v,(Shell Volume) Q)cao

Cc thng sBnh& th0 tch Bng, th0 tch v,, di#n tch trao %Di nhi#t%&'c tnh ton tE%Pc %i0m c6a Bng v v, sau khi lIa chLn kchth&Cc c6a chng bJng cch b4m phm Shell v Tube trong Sizingpage. Q)cao c6a %y thi;t b2trao %Di nhi#t c th0%&'c xc %2nhnh&ng khng c5n thi;t trong m ph,ng t\nh.

Trong m=c Parametersbao gWm cc thng sBtrao %Di nhi#t, ThamsBhi#u chYnh F c th0%&'c bi;n %Di:

Field M t3

Overall UA

Tch h#sBtruy:n nhi#t ton ph5n v di#ntch trao %Di nhi#t c6a trao %Di nhi#t. HI#usu4t trao %Di nhi#t t[l#vCi chnh l#ch nhi#t%)logarit, trong % UA l h#sBt[l. UA cth0xc %2nh hoPc tnh bJng Hysys.

Tubeside andShellside Delta P

Q)gi+m p c6a Bng v v,c6a trao %Di nhi#tc th0xc %2nh tSi %y. N;u khng xc %2nhgi tr2DP, Hysys sKtnh thng qua p su4tcc dng tCi trao %Di nhi#t.

www.thuvien247.net


44/650

32

Detail ed Model

Detailed model bao gWm c thng tin chi ti;t c6a Zone

I nformation, Heat Tr ansfer Coeff icient, vDeltaP. ChLn Detailed

Modeltrong Parameters PagesKhi0n th2giao di#n sau:

Zone I nformation

Hysys c th0chia thi;t b2trao %Di nhi#t thnh nhi:u ph5n khc nhau

gLi l cc vng. Do %i:u ki#n dng c6a Bng v v, l thay %Di qua

cc cng %oSn, h#sBtruy:n nhi#t khng giBng nhau dLc theo chi:udi c6a thi;t b2trao %Di nhi#t. B/i vy khi chia ra cc vng ta c th0

tnh h#sBtruy:n nhi#t c6a tEng vng ring bi#t, theo % sKph h'p

h(n vCi thi;t b2trao %Di nhi#t thIc t;.

Trong m=c Zone Informationbao gWm:

Field M t3

Zones per ShellPass

Nhp sBvng trong m)t v,. TDng sBvngtrong m)t v,Bng truy:n nhi#t %&'c tnh lTotal Zones = Total Shell Passes Zones

Zone Fraction

T[l#th0tch c6a tEng vng so vCi tDng th0tch v,, Hysys sKtI%)ng %i:u chYnh th0tchcc ph5n %:u nhau, bSn c8ng c th0%i:uchYnh th0tch lCn hay nh,c6a cc ph5n %so vCi tDng th0tch c6a v,. B4m phmNormali ze Zone Fractions%0hi#u chYnh

tDng cc ph5n bJng 1.

www.thuvien247.net


45/650

33

Heat Transfer Coeff icients

Trong Heat Transfer Coefficients bao gWm cc thng tin v: cc

thng sB trong qu trnh tnh ton: h# sB truy:n nhi#t ton ph5n

(UA), h# sB truy:n nhi#t ring c6a dng trong Bng (hi) v h# sB

truy:n nhi#t mi tr&-ng xung quanh (h0). H#sBtruy:n nhi#t c th0%&'c xc %2nh theo 2 cch:

S


46/650


47/650

35

Detail ed Heat Model Proper ties

Khi b4m phm Specify Parameters for I ndividual Zones sK xu4t

hi#n cc thng sB trao %Di nhi#t v %i:u ki#n t\nh c6a tEng vng.

Hysys s


48/650

36

Heat Transfer (I ndividual) Tab

Trong giao di#n ny hi0n th2 cc thng sB trao %Di nhi#t c6a tEngvng. C sItruy:n nhi#t tEdng l,ng trong Bng sang dng trong v,xu4t hi#n thng qua cc b)phn truy:n nhi#t. C hai b)phn %Bi l&uv m)t b)phn dbn nhi#t %&'c lMp tDh'p vCi nhau tSi mVi v2tr Bng.

Tab ny hi0n th2 t4t c+cc b)phn truy:n nhi#t tSi mVi v2 tr Bngtrn m)t b+ng tnh. C th0chLn ConductivehoPc Convective%&'chi0n th2t&(ng @ng /danh sch ko th+c6a Heat Transfer Type.

Heat TransferElement

M t3

ConvectiveElement

Shell Sideelement%&'c k;t h'p vCi h#sBtruy:n nhi#t ring hoxung quanh Bng. Tube Side%&'c k;t h'p vCi h#sBtruy:n nhi#t ring hi, /

bn trong Bng. Cc h#sBtruy:n nhi#t ring nyc th0%&'c tnh bJng Hysys hoPc %&'c ng&-idng bi;n %Di.

ConductiveElement

B)phn ny %&'c k;t h'p vCi %)dbn nhi#t quathnh Bng kim loSi. Q) dbn nhi#t c6a Bng kimloSi, nhi#t %)bn trong v bn ngoi thnh Bng%&'c hi0n th2. Q) dbn nhi#t c th0%&'c ng&-idng bi;n %Di.

Heat Transfer (Global) Tab

Tab ny hi0n th2cc b)phn truy:n nhi#t thu)c ton b)thi;t b2trao%Di nhi#t. BSn c th0lIa chLn hi0n th2overallConductive hoPc l

Convective elements bJng cch chLn ki0u tE danh sch ko th+trong Heat Transfer Type.

www.thuvien247.net


49/650

37

Tabular Resul ts Tab

Giao di#n ny hi0n th2%Pc tnh c6a cc dng l,ng ch+y qua Bng v

v,. Qi:u ki#n c6a dng vo v ra c6a mVi vng %&'c hi0n th2:

Temperature

Pressure

Vapour Fraction

Molar Flow

Enthalpy

Cumulative UA Cumulative Heat Flow

Length (into heat exchanger)

C th0chLn dng qua v,hoPc Bng bJng cch chLn dng t&(ng @ng

tEdanh sch ko th+trong Display which flowpath.

Specs (I ndividual) Tab

Trong tab ny hi0n th2%)gi+m p %&'c duy tr mVi v,v Bng trong

m)t b+ng tnh. Cc c)t Pressure Flow Kv Use Pressure Flow K

chYs


50/650

38

Plots Tab

Giao di#n ny hi0n th2%Wth2bi0u diOn cc thng sBcung c4p trongTabular Results tab. C th0vK%Wth2cc bi;n cho shelland tubesidec6a thi;t b2trao %Di nhi#t:

Vapour Fraction Molar Flow Enthalpy

Cumulative UA Heat Flow Length

3.3.4 Worksheet Tab

Hi0n th2cc thng tin chung v:%Pc tnh c6a cc dng lin k;t vCi

thi;t b2trao %Di nhi#t. Bao gWm bBn trang Conditions, Properties,

v Composition, PF Specs. PF Specsc cc thng tin v:%Pc tnh

c6a dng trong Dynamics Tab.

3.3.5 Performance Tab

Hi0n th2k;t qu+tnh ton d&Ci dSng %Wth2v b+ng tnh.

Detai ls Page

Cc thng tin trong Details Page th0hi#n trn hnh sau:

Gxem cc thngsIc;a cc dngsau khi tch thnhcc pha ring bi6t,mFWorksheet Tabc;a StreamProperty View

Hnh dOng c;atrang ny honton khc v2iDynamic Rating

www.thuvien247.net


51/650

39

Overall Per formance Group

Hi0n th2cc thng sB % %&'c hysys tnh ton:

Cc thng tinchung

M t3thng s2

DutyNhi#t nUng truy:n tEdng nng tCi dnglSnh

Heat LossTDn hao nhi#t nUng. Hi#u su4t truy:n nhi#tton ph5n c)ng vCi tDn th4t nhi#t bJng hi#usu4t dng nng xc %2nh trong Tables page.

UA

L tch c6a h#sB truy:n nhi#t ton ph5n vtDng ton b)di#n tch b:mPt trao %Di nhi#t.

UA bJng Hi#u su4t truy:n nhi#t ton ph5nchia cho LMTD.

MinimumApproach

Q)chnh l#ch nhi#t %)nh,nh4t giRa dngnng v dng lSnh.

Mean TempDriving Force

Q) chnh giRa nhi#t %) trung bnh giRadng nng v dng lSnh.

LMTD

LMTD ch&a hi#u chYnh nhn vCi h# sB Ft.

Trong ph&(ng php Weighted Rating, LMTDch&a hi#u chYnh bJng LMTD hi#u d=ng.

Hot PinchTemperature

Nhi#t %)dng nng /g5n %ng nh,nh4t.

Cold PinchTemperature

Nhi#t %)dng lSnh /g5n %ng nh,nh4t

Ft Factor

H# sB hi#u chYnh LMTD (log mean

temperature difference), Ft, %&'c tnh theohm c6a sB v, Bng v nhi#t %). VCi qutrnh trao %Di nhi#t ng&'c dng Ft = 1. VCi

ph&(ng php Weighted Rating Ft = 1.

UncorrectedLMTD

(ChY p d=ng cho ph&(ng php Endpointrating) - LMTD %&'c tnh ton theo quan%i0m g5n %ng nhi#t %) (hi#u sB nhi#t %)%5u cuBi) trong thiit b2 trao %Di nhi#t, s


52/650

40

Uncorrected LMTD %&'c tnh bJng bi0u th@c sau:

Trong 7 DT1 = Thot, out Tcold, in

DT2 = Thot, in Tcold, out

Plots Page

C th0vKcc %&-ng cong dng nng, dng lSnh. S


53/650

41

V d=Trao %Di nhi#t %a c4p trong ch89ng 11- Optimizer

SubFlowsheet Refrigeration Cycle Example (Chapter 2 -Flowsheet Architecture in the Users Guide) chYdbn s


54/650

42

3. Trn giao di#n Parameters page nhp gi tr2Tube Side Delta P

v Shell Side Delta Pl 5 psi

4. Ch rJng tSi %i0m ny chYc m)t bc tIdo. Cc thng sBnhi#t

%) ngoi Bng ph+i %5y %6 thng tin %0 tnh ton. ChLn m hnh

WeightedtEHeat Exchanger Modelv chLn nt Extremestrongnhm Heat Loss/ Leak. SB bc tI do tUng ln 3 do cc tham sB

ph+i cung c4p thm cho Heat Leakv Heat Loss.

5. Trn Specs pagec6a DesigntabbSn c5n thm hai thng sBvo

danh sch, b4m phm Addv hon thnh nh&giao di#n d&Ci %y:

6. Nhp gi tr2cc thng sBv cung c4p cc thng tin yu c5u

Cc thng s2 Gi tr,nh7p vo

UA [Btu/F-hr] 2.50E+06

Temperature of Tube Out [oF] 100

Heat Loss [Btu/hr] 1E+6

K;t qu+tnh ton xem trong Conditionspage c6a Wordsheet tab

www.thuvien247.net


55/650

43

3.4 L gia nhi0t (Fired Heater)

Cng c=ny chY%&'c s


56/650

44

%&'c bBtr nh&m)t dng lSnh trong thIc t;(hoPc ng&'c lSi),

cng c=vbn sKtnh ton m)t cch chnh xc. Cch bBtr cc

dng Hot/Cold (%&'c xc %2nh b/i LNG) c th0 tm th4y

trong Side Resultpage.

- L&u trnh chnh %&'c mPc %2nh hi0n th2trong l&u trnh thp.Tham kh+o v d= trong Ch&(ng 2- Flowsheet Architecture

trong ph5n Users Guide %0bi;t cch c th0s


57/650

45

Exchanger Parameter Group

ExchangerParameter

Description

RatingMethod

VCi ki0u Weighted, bi0u %Wnhi#t %&'c chia thnhcc kho+ng nh,, sau % nhi#t trao %Di tnh tonring cho tEng kho+ng. LMTD v UA %&'c tnhton cho mVi kho+ng trong bi0u %Wnhi#t v %&'c

c)ng lSi %0tnh ton %Si l&'ng UA chung.Shell Passes BSn c cng c=trong HYSYS %0thIc hi#n tnh

ton cho dng xui chi:u Counter Current (Lt&/ng vCi Ft = 1) hoPc cho thng sBc6a ShellPasses. BSn c th0thi;t lp sBshell passes vCi sBnguyn b4t kXtE1 tCi 7.

Trong SSMod, bSn c th0 lIa chLn End Point hoPc Weighted

Rating Method. Tuy nhin n;u c nhi:u h(n hai dng qua b) trao

%Di nhi#t LNG, th chYs


58/650

46

Ch rJng Heat Loss/Leak chY c th0%&'c thi;t lp khi Rating

Method l Weighted.

Exch anger Detai l Grou p

LNG Exchanger Details %&'c hi0n th2nh&trong hnh d&Ci %y

Cho mVi pha tham gia trao %Di nhi#t, cc %Pc tr&ng d&Ci %y c th0%&'c thi;t lp :

Parameter Description

Intervals SBkho+ng chia, chYp d=ng %&'c vCiWeighted Rating Method, c th0%&'c khai

bo. Khi nhi#t %)thay %Di khng tuy;n tnh,c5n thi;t chia thnh nhi:u kho+ng %0tnh ton.

Dew/Bubble Point Check vo chLn ny %0thm m)t %i0m vobi0u %Wnhi#t c sIchuy0n pha. Hnh sau minhhLa +nh h&/ng c6a sBkho+ng v sIh)i t=c6a%i0m s&(ng v %i0m bLt trn %Wth2nhi#t%)/dng nhi#t. Nhi#t %)bi0u diOn trn tr=c y,dng nhi#t trn tr=c x

Equilibrate T4t c+cc dng c5n %&'c ki0m tra cn bJngnhi#t tr&Cc khi vo qu trnh tnh ton UA vLMTD. N;u chYc m)t dng nng hoPc m)tdng lSnh %&'c ki0m tra, sau % nhRng dng% %&'c xc %2nh trong cn bJng nhi#t vCi

chnh n th k;t qu+khng c tc d=ng. N;uhai hoPc nhi:u dng nng hoPc dng lSnh %&'cki0m tra, th hi#u qu+tnh ton sKtUng ln. T4tc+dng khng %&'c ki0m tra %&'c %&a vo

bi0u %Wthnh ph5n tSi nhi#t %)t&(ng @ng c6achng

Step Type C ba ty chLn, %&'c miu t+d&Ci %y:-Equal Enthalpy t4t c+cc kho+ng c thay%Di enthalpy bJng nhau.

-Equal Temperature t4t c+cc kho+ng cthay %Di nhi#t %)bJng nhau

www.thuvien247.net


59/650

47

-Auto Interval HYSYS sKxc %2nh %u lcc %i0m nn thm vo bi0u %Wnhi#t. N%&'c thi;t k;%0hSn ch;tBi thi0u sai sB, s


60/650

48

Specs Page

Trn trang Specs, bSn sK tm th4y bBn ph5n trong % c ch@a cc

thng sBkhai bo v thng tin tnh ton.

Ba kho&ng, khng bao g'm +i,m s"$ng v +i,m b/t

www.thuvien247.net


61/650

49

Solver Group

Solver Group bao gWm nhRng tham sB% tnh ton dng cho LNG:

Solver Parameter Specification Description

Tolerance BSn c th0%Pt %)sai sBtnh tonCurrent Error Khi sai sBhi#n tSi nh,h(n %)sai sBtnh

ton, gi+i php sKch tCi %St h)i t=

Interations B&Cc lPp hi#n tSi c6a vng lPp ngoi %&'chi0n th2. Trong vng lPp ngoi, bi0u %Wnhi#t %&'c cp nht v ph5n tnh ton ccthng sB%Pc tr&ng %&'c thIc hi#n. NhRngtnh ton khng chPt chK%&'c thIc hi#ntrong vng lPp trong. T4t c+mLi %i:u ki#n

%&'c tnh %;n /vng lPp trong.

Degree Of Freedom Group

Q0gip %St %&'c k;t qu+mong muBn, cc thng sBch&a bi;t (l&u

l&'ng dng, nhi#t %)) c th0%&'c thi;t lp trong cc dng lin k;t.

MVi thng sB%&'c khai bo sKlm gi+m m)t bc tIdo (Degrees of

Freedom). Gi tr2c6a Degrees of Freedomtrong LNG %&'c hi0n

th2trong SolverGroup.

SB cc Constraints (%i:u ki#n rng bu)c - specs) ph+i bJng sB

Unknow Variables (cc bi;n ch&a bi;t). Khi %, Degrees of

Freedomm sKbJng 0, v ch&(ng trnh bMt %5u thIc hi#n tnh ton.

Unknow Variab les Grou p

HYSYS li#t k t4t c+ cc bi;n ch&a bi;t trong LNG ty theo khai

bo ban %5u. Khi thi;t b2% %&'c tnh ton xong, gi tr2 c6a cc

bi;n ny sK%&'c hi0n th2.

Speci f icat ion Group

Tham sBHeat Balance %&'c mPc %2nh cho LNG, ph+i kch hoSt %0

ph&(ng trnh nhi#t %St cn bJng nhi#t.

Ch rJng Heat Balance (thi;t lp tSi 0 kJ/h) tr/ thnh m)t %i:u

ki#n rng bu)c (constraint). Q l thng sB Duty Error, n;u bSn

www.thuvien247.net


62/650

50

ng&ng hoSt %)ng c6a n, ph&(ng trnh cn bJng nhi#t sK khng

%&'c cn bJng. Khng c thng sBHeat Balance, bSn c th0, v d=,

thi;t lp t4t c+bBn dng trao %Di nhi#t m)t cch %5y %6, v HYSYS

sK tnh ton sai sB cn bJng nhi#t rWi hi0n th2 trong c)t Current

Valuec6a Specificationgroup.

BSn c th0View hoPc Deletecc thng sB% %&'c thi;t lp bJng

cch dng phm t&(ng @ng %&'c sMp x;p pha bn ph+i c


63/650

51

T4t c+c ba ki0u thng sBd&Ci %y.

Specification Action

Active M)t thng sBhoSt %)ng l thng sBm thutton h)i t=%&'c p d=ng %ang thIc hi#n tnh

ton. Ch rJng m)t thng sBhoSt %)ng lun%&'c x


64/650

52

Cc thng sB%&'c s


65/650

53

Trang Notes cung c4p cho bSn cng c= soSn th+o vUn b+n, c th0ghi ch b4t kXthng tin no hoPc nhRng ch thch v:cng c=LNGhoPc nhRng thng tin c lin quan tCi qu trnh m ph,ng bSn %angthIc hi#n ni chung.

3.5.2 Rating TabKhi chY lm vi#c trong SSMod, bSn c5n thay %Di b4t c@ thng tinno trn cc trang c6a tab ny. Q0bi;t thm chi ti;t chSy cng c=LNG trong DynMod, tham kh+o Dynamic Modeling.

3.5.3 Worksheet Tab

WorksheetTab ch@a b+ng tDng k;t nhRng thng tin c trong giaodi#n thu)c tnh c6a t4t c+ nhRng dng trong LNG. Trang

Conditions, Properties, Composition ch@a thng tin %&'c lIachLn tEnhRng trang t&(ng @ng c6a WorksheetTab cho giao di#nthu)c tnh hi0n th2. Trang PF Specsch@a tm tMt nhRng thng tinhi0n th2trong Dynamictab c6a giao di#n thu)c tnh dng.

3.5.4 Performance Tab

Trong giao di#n ny hi0n th2chi ti;t k;t qu+tnh ton c6a thi;t b2trao %Di LNG. ChYc ba trang %5u, SS Result, Plotsv Table lin

quan vCi SSMod.SS Result Page

www.thuvien247.net


66/650

54

Overall Performance Group

Prameter DescriptionDuty Qy chnh l dng nhi#t tEdng nng tCi dng lSnh

trE%i nhi#t m4t mt. V ng&'c lSi, n l dng nhi#ttEdng lSnh tCi dng nng trE%i nhi#t r rY

Heat Leak L sIm4t mt c6a nUng su4t nhi#t dng lSnhHeat Loss L sIm4t mt c6a nUng su4t nhi#t dng nngUA Q&'c tnh tEh#sBtrao %Di nhi#t v tDng di#n tch

trao %Di nhi#t thIc t;. NUng su4t nhi#t t[l#vCi sIchnh l#ch nhi#t %)chung, trong % UA chnh l h#sBt[l#. B/i vy, UA bJng nUng su4t nhi#n chungchia cho LMTD (% chnh nhi#t %))

LMTD Q&'c tnh trong %i:u ki#n nhi#t %)tCi hSn (Q)chnhnhi#t %)%5u cuBi) trong thi;t b2trao %Di nhi#t, s


67/650

55

Side Resul t Group

Side ResultGroup %&a ra thng tin cho mVi %&-ng dbn. _mVi pha

trao %Di nhi#t, nhi#t %)dng vo/ra, l&u l&'ng mol, Duty, UA v sI

bBtr dng nng lSnh %&'c hi0n th2.

Plots Page

BSn c th0vKbi0u %WhVn h'p hoPc bi0u %Wc6a tEng %&-ng cong

ring bi#t cho LNG. S


68/650

56

Dynamic and Layers Pages

Trang Dynamic and Layers c6a Performance tab hi0n th2 cc k;t

qu+tnh ton tEDynMod. Q0bi;t thm thng tin trn cc trang ny,

tham kh+o ph5n h&Cng dbn v:Dynamic Modelling.

3.5.5 Dynamics Tab

Khi chYlm vi#c trong SSMod, bSn khng c5n thay %Di b4t c@thng

tin no trn cc trang c6a tab ny. Q0 bi;t thm chi ti;t cho vi#c

chSy cng c=LNG trong DynMod, tham kh+o Dynamic Modeling.

3.5.6 HTFS-MUSE Tab

HTFS-MUSE tab tnh h'p @ng d=ng HTFSMUSE trong thi;t b2

LNG c6a HYSYS.

MUSE c th0s


69/650

57

T4t c+cc ki0u tnh ton ny cho trao %Di nhi#t ng&'c v xui dng.

Trong tab ny c chn trang :

- Exchanger page- Process page

- Distributors page- Layer Pattern page- Fins page- Design Limits page

- Stream Details page- Methods page- Results page

V c ba giao di#n tnh ton

- Import button cho php bSn nhp gi tr2tE MUSE tCi ccpages c6a tab.

- Export button cho php bSn xu4t thng tin %&'c cung c4ptrong tab ny tCi MUSE.

- Enable Muse check box khi check-box %&'c kch hoSt, bSnc th0s


70/650


71/650


72/650

60

%2nh s


73/650


74/650

62

Field DescriptionDimension b Nhp kch th&Cc b cho %5u vo/%5u ra b)phn

phBi. Qy l %&-ng knh %5u c6a cc b)phnphBi End Side, Central, Indirect v Hardway, vchi:u di Pad 1 cho b)phn phBi Mitred. Khng

c5n thi;t cho Full End c6a b)phn phBi DiagonalFin Numberfor Pad 1 and 2

Nhp sBl&'ng cc t4m %&'c dng trong %5u vov %5u ra cc %;(Pad) c6a b)phn phBi. B)phn

phBi %i0n hnh %&'c s


75/650


76/650

64

Layer Pattern

Nhp vo sBth@tIc6a lCp c8ng sKhnh thnh %&'cLayer Pattern

(stacking pattern). Patternc th0%&'c nhn bi;t nh&nhn bi;t sB

th@ tI c6a layer, c th0 nhn bi;t bJng m)t dy k tI, nh& l

ABABABCAB. MPc d trong nhRng tr&-ng h'p %(n gi+n, v d=

khi chYc m)t dng trn m)t lCp, Layer Patternc th0%&'c %nh

d4u sBth@tIc6a cc dng, v d=nh&121213412.

NhRng dy lPp lSi c th0 %&'c vi;t trong d4u ngoPc, v d=

(121213/5)1312 c ngh\a l dy 121213 lPp lSi 5 l5n, sau % l

1312. Cc kho+ng trBng trong Pattern %&'c b, qua, v cc d4u

ngoPc c th0khng %&'c %Pt trong d4u ngoPc. M)t dy c6a sBdng

c th0ch@a zero %0bo rJng lCp hon ton trBng.

Layer Pattern c th0 k;t thc bJng M hoPc MM %0 chY th2 rJng

Pattern%Wc %Bi x@ng trung tm. MM chY th2 rJng lCp trung tm%&'c lPp lSi, M bo ph5n %Bi x@ng c th0l tm c6a lCp cuBi cng.

Khi Pattern%&'c xc %2nh bJng chuVi cc k tI, sK dng cc k

hi#u | hoPc ||, khng ph+i nh&M, %0chYth2%Bi x@ng g&(ng.

Layer Defi nit ion

VCi mVi lCp (theo v5n alphabet) %&'c nhn bi;t trong Pattern sK

thi;t lp dng hoPc sB th@ tI c6a dng dLc theo thi;t b2 trao %Di

nhi#t tE%i0m A, bn trong mVi ki0u lCp. Qi:u ny chYc5n thi;t khi

www.thuvien247.net


77/650

65

Pattern%&'c xc %2nh theo cc ki0u lCp (A,B,C,), h(n l theo

ki0u dng 1,2,4,.

Layer Definition chY s


78/650

66

Field DescriptionFin Type C bBn ki0u t4m chnh

- Plain- Perforated- Serrated, hoPc Offset-strip

- Wavy hoPc herringboneQ0bi;t chi ti;t v:mVi loSi t4m tham kh+o

ph5n MUSE HelpPrandtl No.Correlation to Cj

Thng sBny quan trLng cho dng ch4tl,ng c %)nhCt cao trong loSi t4m ki0unhFn (Plain) hoPc c lV(Perforated).H#sBColburn j gi+thi;t rJng Cj chYlhm c6a Re, nh&ng n khng %ng vCi chYsBReynolds th4p (d&Ci 1000), tSi % c8ng

ph=thu)c chYsBPrandtl.N;u bSn p d=ng sBli#u Re-f-Cj tSi m)tPr t&(ng @ng vCi dng %ang s


79/650

67

Nh&% nh4n mSnh /trn rJng cc sBli#u c6a t4m t&(ng @ng l4y tE

nh s+n xu4t t4m, n;u c th0, sK %&'c nhp vo ph5n Fin

Performance group. Q0 thi;t lp cc thng sB, lIa chLn sB t4m tE

danh sch cc t4m v nhp dRli#u trong ph5n t&(ng @ng. Phm Plot

Performance hi0n th2bi0u %Wcc thng sBcho t4t c+cc loSi t4m.Design Lim i ts Page

Trang ny cho php bSn thi;t lp cc thng sB giCi hSn d&Ci %y

cho thi;t b2trao %Di nhi#t

- Maximum Length- Maximum Width- Maximum Depth (Stack Height)

- Target Cross Section Ratio

www.thuvien247.net


80/650

68

Strem Detail Page

Trang Stream Detailscho php bSn thi;t lp nhi:u h(n cc thng

sBhnh dSng c6a dng, cc thng sBny sK%&'c bDsung trn trang

Exchanger.

B+ng d&Ci %y gWm cc ph5n c6a trang ny:Field DescriptionSame Layer asStream

Thng sBny l m)t trong nhRng cch %0thi;t lp hai dng cng giRnhRng %Pc tr&ngc6a lCp trong m)t thi;t b2trao %Di nhi#t.Khng c5n bSn ph+i thi;t lp m)tLayerPaterntrong m)t nhm ccPatern%&'cnhn bi;t A,B,C etc.., vCi thng tin trongLayer Definition.

N;u nh&bSn thi;t lp m)tLayer Paterntrong m)t sBdng, sau % m)t dng trongmVi lCp %&'c dng %0nhn bi;t lCp. VCi ccdng khc trong lCp %, %&a ra sBc6a dngtrong Layer Patern % %0nhn bi;t lCp.

Fraction of DoubleBanking

Ph5n ny khng c5n n;u bSn thi;t lp m)tLayer Paternv sK%&'c &Cc l&'ng. Thamkh+o ph5n MUSE Help %0bi;t thm chi ti;t

Number of CrossFlow Passes VCi dng trong b)trao %Di nhi#t nhi:u dngcMt nhau, nhp sBl&'ng cc dng cMt nhau.

www.thuvien247.net


81/650

69

Field DescriptionFin Number of(first) Main Fin

Nhp sBcho dng %0phn bi#t t4m trao %Dinhi#t chnh. SBny ph+i t&(ng @ng vCi dRli#u trong trang Fins, hoPc trong UserDatabank.

N;u m)t dng s


82/650

70

Ph5n ny c nhRng m=c sau:

Field DescriptionUnits of Output Thi;t lp sIthay %Di %(n v2bSn thch dng cho dRli#u %5u

ra. C nUm ty chLn:- SI/deg C

- British- Metric /C- SI/deg K- Metric /K

Output of InputData

Thi;t lp %5u ra c6a dRli#u %5u vo xu4t hi#n trong ph5nchnh c6a trang Result. Tham kh+o thm trong ph5nMUSE Help %0bi;t thm thng tin

PhysicalPropertiesPackage

Cho php bSn g


83/650

71

Calculat ion Parameter

Ph5n ny cho php bSn thi;t lp cc thng sBc6a qu trnh trao %Di

nhi#t, bao gWm nhRng ph5n sau %y :

Field DescriptionHeat Leak N c th0thi;t lp %&'c m)t mSng l&Ci

nhi#t r rYtrong thi;t b2, v ngoi thi;t b2,n;u c gi tr2m.

Heat Leak Skewness p d=ng cho nhi#t r rYphn bBkhng %:udLc theo chi:u di thi;t b2. Tham kh+oMUSE Help %0bi;t thm thng tin.

Effective Length,Distance to EffectiveLength

C hai m=c th&-ng %&'c b,qua, v %0choch&(ng trnh tItnh ton. Chi:u di hRuch l vng trong thi;t b2gi+thi;t l x+y ra

trao %Di nhi#t. N %&'c xc %2nh tEdRli#uv:hnh dSng c6a thi;t b2trao %Di nhi#t,nh&ng bSn c th0h6y b,n;u muBn. Thamkh+o MUSE Help %0bi;t thm chi ti;t

A Stream B StreamLoad

Qy l tr/khng %5u vo. C th0thi;t lpt+i nhi#t qua thi;t b2tE%5u A tCi %5u B

Process Constraints

Cho php bSn thi;t lp vi#c thay %Di c6a dng lin quan vCi gi tr2

v&'t qu gi tr2 thng th&-ng nhn %&'c ch&(ng trnh tnh ton.

Khng nn s


84/650


85/650

73

Property Package Components

Peng Robinson C1, C2, C3, i-C4, n-C4, i-C5, n-C5

Thi;t lp thng tin cho cc dng vo:

Material Stream (Plant Feed )

Worksheet(Conditions )

Temperature 20.0000oC

Pressure 500.0000 kPa

Molar Flow 1000.0000 kgmole/hr

Worksheet(Composition)

Methane Mole Frac 0.5386

Ethane Mole Frac 0.1538

Propane Mole Frac 0.0769

i-Butane Mole Frac 0.0692

n-Butane Mole Frac 0.0615

i-Pentane Mole Frac 0.0538

n-Pentane Mole Frac 0.0462

Material Stream (Warm C1)

Worksheet(conditions)

Temperature 30.0000oC



Worksheet(composition)


Ethane Mole Frac 0.0500Propane Mole Frac 0

i-Butane Mole Frac 0

n-Butane Mole Frac 0

i-Pentane Mole Frac 0

n-Pentane Mole Frac 0

www.thuvien247.net


86/650

74

Material Stream (Cold 1)

Worksheet(Conditions)

Vapour Frac 1.000



Worksheet(Composition )

Methane Mole Frac 0.95Ethane Mole Frac 0.05

Propane Mole Frac 0





Material Stream (Cold C2 )

Worksheet(Conditions )

Vapour 0.0000


Worksheet(Composition)


Ethane Mole Frac 0.98

Propane Mole Frac 0





Connection Page

Thi;t lp thi;t b2trao %Di nhi#t LNG nh&d&Ci %y

Thm haidng nWabRng cch sCdXng phm

www.thuvien247.net


87/650

75

Parameter Page

ChLn phm Extremes trong ph5n Heat Loss/Leak. Ch rJng %i:u

% sK lm tUng sB bi;n khng bi;t ln hai, v nh& vy bc tI do

(Degree of Freedom) c8ng sKtUng ln hai.

Trong ph5n Exchanger Detail, hi#u chYnh lSi sBkho+ng tnh ton

cho mVi bBn dng qua l 20.

Specification Page

Q0 ch&(ng trnh c th0 tnh ton, sB bi;n %)c lp ch&a bi;t ph+i

bJng sBcc %i:u ki#n rng bu)c (Degree of Freedom = 0). LNG ch

%;n cc %i:u ki#n rng bu)c c6a cc thng sB nh& l: UA,

Minimum Temperature Approach, hay %) chnh nhi#t %) giRa haidng.

Trong v4n %:ny, hai ki0u thng sB%&'c yu c5u. Q5u tin, thm

cc thng sBDelta Tempd&Ci %y

Name Cold Feed Cold 1

Warm C1 Cold 1 Out

Warm C1 Cold C1

Type Delta Temp Delta Temp Delta TempStream (+) Cold Feed Warm C1 Warm C1

Stream (-) Cold 1 Cold 1 Out Cool C1

Spec Value (C) 15.00 2.00 5.00

Sau % thm hai thng sBDuty Ratio

Name Heat Leak Fraction Heat Loss Fraction

type Duty Ratio Duty Ratio

Pass Heat Leak Heat Loss

Pass (/) Overall Overall

Spec Value 0.00 0.00

www.thuvien247.net


88/650

76

Trn trang worksheet, thi;t lp Vapour Fraction c6a Cold C2 Out

l 1

TSi %i0m ny, Degree of Freedom sKchuy0n thnh 0 v LNG sKbMt

%5u tnh ton. Dng thng bo tSi cuBi trang %Pc tnh c6a LNG sK

hi0n th2Temperature Cross. Chuy0n tCi trang Plots%0xem %Wth2bi0u diOn nhi#t %)cMt nhau tSi chVdng nng vo.

M)t cch g5n %ng khc c th0%&'c s


89/650

77

Result Page

Chuy0n sang trang Conditionsc6a Worksheettab trong giao di#n

thu)c tnh c6a LNG:

Trn trang SS Result c6a Performance tab, bSn sK tm th4y

Performancev Side Result:

www.thuvien247.net


90/650


91/650

2

4.1 Mixer

Tr)n hVn h'p l sIk;t h'p hai hay nhi:u dng vt ch4t thnh m)t.

Cn bJng nhi#t v cn bJng vt ch4t %St %&'c nh-c sI tr)n hVn

h'p. Nh&vy, gi tr2nhi#t %)ch&a bi;t trong sBcc thng sBnhi#t

%)dng vo v dng ra lun lun %&'c tnh ton m)t cch chPt chK.

N;u cc tnh ch4t c6a dng vo % bi;t (nhi#t %), p su4t, thnh

ph5n), th tnh ch4t dng ra sK%&'c tnh ton m)t cch tI%)ng dIa

trn thnh ph5n, nhi#t %)v entanpi % bi;t c6a dng %.

p su4t v nhi#t %) c6a hVn h'p th&-ng ch&a bi;t. Tuy nhin,

MIXER sK tI%)ng tnh ton ng&'c lSi v xc %2nh nhi#t %) c6a

m)t trong nhRng dng vo n;u nh&dng ra % hon ton xc %2nh.

Trong tr&-ng h'p ny, p su4t c6a t4t c+ cc dng ph+i %&'c xc

%2nh %5y %6.

MIXER sK tnh nhanh dng ra s


92/650

3

Conections Page

Trn giao di#n ny, ghi r tn c6a t4t c+ cc dng vo Mixer v

dng ra.

Parameters Page

Trong Parameters Page, hi0n th2Automatic Pressure Assignment

HYSYS s


93/650

4

L&u rJng n;u chLn Equalize Allv hai hay nhi:u cc dng c p

su4t khc nhau, sKxu4t hi#n m)t thng bo pressure inconsistency

(p su4t khng %Wng nh4t). Trong tr&-ng h'p ny, bSn ph+i xa b,

ton b)chY%0lSi m)t gi tr2p su4t cho t4t c+cc dng hoPc chLn

Set Outlet to Lowest Inlet. N;u bSn chLn Set Outlet to LowestInletbSn vbn c th0%Pt p su4t cho t4t c+cc dng.

User Variables Page

Trang ny cho php ng&-i s


94/650


95/650

6

B4m phm Enter Simulation Environment

B4m phm F12 c Piping Equipment c Mixerc Add cClose

Trong b+ng Design Connections %Pt tn cho cc bi;n sBc6adng vo (dng 1 v dng 2) v dng ra (dng 3):

Trong Worksheet Conditions chLn cc thng sBc6a dng ra:v d=nh&nhi#t %)p su4t, thnh ph5n....

www.thuvien247.net


96/650

7

Ti;p t=c chLn thnh ph5n cho mVi c4u t


97/650

8

4.2 Cc 4oDn Eng (Pipe Segment)

Cc %oSn Bng (PIPE SIGEMENT) %&'c s


98/650


99/650

10

- Ti;p theo gi tr2p su4t v nhi#t %)tSi %5u kia c6a tuy;n Bng%&'c xc %2nh tEtnh cn bJng nUng l&'ng v cn bJng khBil&'ng nh&ph&(ng php th@nh4t.

- N;u k;t qu+tnh p su4t nhn %&'c khc vCi p su4t &Cc tnh

th ph+i &Cc tnh m)t gi tr2p su4t mCi v tnh lSi cn bJngnUng l&'ng v cn bJng khBi l&'ng.

- Ti;p t=c cho tCi khi gi tr2P tnh ton v P &Cc tnh %St %&'csIsai khc trong giCi hSn cho php.

Ph&(ng php ny %&'c p d=ng tnh ton %) gi+m p cho nhRng

chVnBi, cc hi#u @ng ma st, thu[t\nh.

Tnh ton theo Chi.u di

Gi+s


100/650

11

- p su4t %5u vo v p su4t %5u ra

- Nhi#t %)c6a m)t dng

- dCc tnh l&u l&'ng dng ban %5u

S


101/650


102/650


103/650

14

- Beggs and Brill

- Gregory Aziz Mandhane

- OLGAS

VCi dng m)t pha, ph&(ng trnh Dancy %&'c dng %0dIdon %)gi+m p. Ph&(ng trnh ny l dSng bi;n %Di c6a ph&(ng trnh nUngl&'ng c(hLc, c tnh %;n sIm4t mt do ma st lm +nh h&/ng %;nth;nUng.

Nhi#t l&'ng m4t mt ton ph5n trong %oSn Bng %&'c th0hi#n trongm=c Duty. Ton b)nhi#t l&'ng m4t mt c th0tnh ton bJng cchs


104/650


105/650

16

OLGAS Pressur e Gradient

OLGAS s


106/650

17

Field M t3

Pressure Tolerance Q&'c s6d=ng %0so snh vCi p su4ttnh ton trong vng lPp

Temperature

Tolerance

Q&'c s6d=ng %0so snh vCi nhi#t %)

tnh ton trong vng lPp

Heat Flow Tolerance Q&'c s6d=ng %0so snh vCi dngnhi#t tnh ton trong vng lPp

Length Initial Guess Q&'c s


107/650

18

Sizing Page

Trong trang ny %)di v chi:u cao c6a cc %oSn Bng % %&'c xy

dIng. C th0cung c4p thng tin chi ti;t cho tEng %oSn nBi hay cc

%oSn Bng trong PIPE SEGMENT %ang %&'c m ph,ng. M)t sB

l&'ng khng giCi hSn cc %oSn Bng hay %oSn nBi bSn c th0%&avo trang ny.

Q0c chi:u di Bng m ph,ng trong HYSYS, cc thng sBcho mVi

%oSn Bng ph+i %&'c nhp ring bi#t, c+cho cc %oSn nBi.

Qu trnh xy dIng m hnh chi:u di Bng %&'c minh hLa bJng s(

%Wd&Ci %y. Trong s(%Wtuy;n Bng di AD %&'c nBi b/i cc %oSn

A, B, C, D vCi 3 %5u nBi F1, F2v F3.

Nhn vo b+ng bn d&Ci Fitting/Pipe, Leng v Elevation %&'c

nhp vo %Pc tr&ng c6a tuy;n Bng di AD. MVi %oSn Bng v %5u nBi

%&'c k hi#u %5y %6. Ch rJng %oSn Bng nJm ngang c Elevation

www.thuvien247.net


108/650

19

bJng 0. V2tr Elevation (tUng %)cao) cho th4y %5u ra c %)cao lCn

h(n %5u vo.

Q0xc %2nh %5y %6tuy;n Bng, c5n ph+i cung c4p s(%Wtuy;n Bng,

%&-ng knh (%&-ng knh danh ngh\a hoPc %&-ng knh trong v

%&-ng knh ngoi), dng vt ch4t v sB c6a cc %oSn Bng trong

tuy;n Bng. Cc %oSn nBi c8ng c5n c gi tr2%&-ng knh trong.

L&u : khi chYc m)t %oSn Bng, HYSYS sK tinh ton %&-ng knh

trong c6a Bng khi bi;t chnh l#ch p su4t v chi:u di Bng.

Add ing Segments

C th0 thm %oSn Bng vo Length Elevation Profile trong giao

di#n %ang hi0n th2(%&'c bi0u diOn trong hnh d&Ci) bJng cch b4m

vo phm Add Segment.

www.thuvien247.net


109/650

20

VCi mVi %oSn Bng %&'c thm vo, ph+i thIc hi#n nh&sau:

Field M t3

Fitting/Pipe ChLn %oSn Bng hoPc %5u nBi tEdanh schko th+trn Edit Bar. N;u trong danh sch

khng c %5u nBi bSn c5n, c th0bi;n %Di%5u nBi v thay %Di h# sB K c6a n chotnh ton ny.

p su4t tSi %5u nBi %&'c tnh ton:

cg

VKP

2

2

=

Trong 7:- t]trKng

K - h6sInIi Ing (K-factor)V- v'n tIc dng bTm8t trung bnh

gc gia tIc trKng tr$-ngBSn c th0bi;n %Di c(s/dRli#u c6a cc%5u nBi c trong file FITTING.DB. Q0

bi;t thm chi ti;t, xem Section 4.2.9-Modifying the Fittings Database.

Length Q) di hi#n tSi c6a %oSn Bng. Khng c5nvCi %5u nBi.

Elevation Change SIthay %Di %)cao giRa %5u ra v %5u voc6a tuy;n Bng. Gi tr2d&(ng cho th4y rJng%5u ra cao h(n %5u vo. Khng c5n vCi%5u nBi.

Outer Diameter Q&-ng knh ngoi c6a Bng hoPc %5u nBi

Inner Diameter Q&-ng knh trong c6a Bng hoPc %5u nBi

Material ChLn m)t trong sB vt li#u c sFn hoPcchLn User Specified. Khng c5n vCi %5u

nBi.Increments SBc6a %oSn Bng trong % tuy;n Bng %&'c

chia ra %0tnh ton.

Viewing Segments

Khi % lIa chLn m)t %oSn Bng hoPc %5u nBi, c th0cung c4p thng

tin chi ti;t lin quan %;n %oSn Bng %&'c %nh d4u. VCi con tr,chLn

%oSn Bng, b4m vo phm View Segment.

www.thuvien247.net


110/650

21

H)p thoSi Pipe Info sK xu4t hi#n cho %oSn Bng. Trong giao di#nny, sKc cc thng tin sau:

Field M t3

Pipe Schedule ChLn m)t trong cc thng sBd&Ci %y: Actual%&-ng knh danh ngh\a khng

xc %2nh, %&-ng knh trong xc %2nh Schedule 40 Schedule 80 Schedule 160

HYSYS c c(s/dRli#u cho 3 danh m=c%&-ng Bng (40, 80, 160). ChLn danh m=c c5nthi;t, sKxu4t hi#n b+ng chLn %&-ng knh danhngh\a t&(ng @ng.

Nominal Diameter Cung c4p %&-ng knh danh ngh\a c6a %oSnBng.

Inner Diameter VCi Schedule 40, 80, 160l4y sBli#u tE

Database. VCi Actual Pipe SchedulesK%&'cng&-i s


111/650

22

Xa b"o#n %ng

Q0xa bDm)t %oSn Bng, %nh d4u m)t trong cc tham sBc6a n

trong h)p Length-Elevation Profilev b4m phm Delete Segment

C8ng c th0xa t4t c+bJng cch b4m phm Clear Profil e.

Truy.n nhi0t (Heat Transfer Page)

Trong Heat Transfer page c th0 lIa chLn ph&(ng php m

HYSYS sKs


112/650

23

Cc ph&(ng php truy:n nhi#t:

Ph89ng php M t3

Duty Method N;u bi;t Overall Heat Duty c6a %oSnBng, cn bJng nUng l&'ng sKd&'c tnh

ngay. MVi %oSn Bng c cng tDn th4tnhi#t. TDng c)ng cc %oSn Bng sKnhngi tr2ph h'p khi nhi#t %) ton tuy;nBng l Dn %2nh, vn tBc truy:n nhi#tth4p so vCi l&u l&'ng nhi#t c6a dng.Qy l ph&(ng php tnh nhanh nh4t.

Stream Temperature N;u xc %2nh nhi#t %) vo v ra, bin%) tuy;n tnh v nhi#t nUng ton ph5nsK %&'c tnh ton. Ph&(ng php ny

tnh ton nhanh khi % bi;t cc %i:uki#n c6a dng.

Overall Heat TransferCoefficient Specified

N;u bi;t Overall Heat TransferCoefficient v nhi#t %) mi tr&-ng,vi#c tnh ton truy:n nhi#t c6a mVi%oSn Bng sK%&'c thIc hi#n chPt chK.

Heat TransferCoefficient Estimation

Overall Heat Transfer Coefficient cth0%&'c xy dIng tEcc b)phn c6a%&-ng Bng.

www.thuvien247.net


113/650

24

L'p mng "%i l*u bn t rong %ng (Inside Film Convection)

C th0yu c5u HYSYS &Cc tnh h# sB truy:n nhi#t lCp mng bn

trong Bng s


114/650

25

QBi l&u bn ngoi vCi khng kh, n&Cc hoPc %4t c th0 bao gWm

bJng cch chLn h)p Estimate Outer HTC. VCi n&Cc v khng kh

vn tBc truy:n trung bnh %&'c mPc %2nh l 1 m/s v ng&-i s


115/650

26

Loi "#t v "&d(n nhi*t (Groundtype and Conductivities):

Tr/lIc truy:n nhi#t (Heat Transfer Resistance) %&'c tnh theo bi0u

th@c sau:

+=

ot

otbb

sgssurroundin D

DZZk

R22

42ln21

Trong 7: Zb= ChiTu su c;a l2p ph;tnh 7/n 7$-ng trXc c;a Ingks = G4 dZn nhi6t c;a v't li6u xung quanh Ing chm

(khng kh, n$2c, 7)t)Dot = G$-ng knh ngoi c;a Ing, bao g m c: l2p v


116/650

27

4.2.4. Worksheet Tab

Worksheet tab, b+ng hi0n th2 tm tMt cc thu)c tnh c6a t4t c+ cc

dng lin k;t vCi cc thi;t b2 c( b+n. Conditions (cc %i:u ki#n),

Properties (cc %Pc tnh), v Composition(cc c4u t


117/650

28

Profile page %&a ra m)t b+ng tm tMt cho cc %oSn tSo nn %oSn

Bng dbn. Kho+ng cch (chi:u di), chi:u cao v sB%oSn thay %Di %)

cao %&'c hi0n th2cho mVi %oSn Bng dbn. Khng s


118/650

29

Plotpage hi0n th2 d&Ci dSng %W th2 cc dR li#u trong Table page.

LIa chLn m)t trong nhRng nt b4m (bn tri giao di#n) %0hi0n th2

%Wth2bi;n thin theo bi;n x bi0u diOn trn tr=c honh:

BSn c th0 bi;n %Di cch hi0n th2%W th2 ty theo tEng %Bi t&'ng

bJng cch lIa chLn Graph ControltEtrn thanh menu chnh.

4.2.6 Dynamics Tab

Dynamics Tab chYc tc d=ng trong m ph,ng %)ng.

4.2.7 Deposition Tab

SI lMng %Lng c6a sp tEkhBi d5u trn thnh Bng %&'c gi+i thi;t l

chYdo sIchuy0n khBi, sIphn tn khng %&'c xem l m)t nhn tB

quan trLng. TBc %)lMng %Lng %&'c m t+b/i bi0u th@c:

m = k ( )bulkwall CC AMwwax

trong 7:m: tIc 74lYng (kg/s)

k : h6sIchuyn khIi (mole /m2s ph?n mol)

C : n^ng 74c;a sp n&i hnh thnh (n^ng 74ph?n mol)

AMwwax: khIi l$%ng phn tCc;a sp (kg/mole)

A: Di6n tch m8t cYt ngang (m2)

H#sBchuy0n khBi %&'c tnh ton theo cng th@c sau %y:

www.thuvien247.net


119/650

30

3

188,0Re.015,0 ScSh=

trong 7:cD

kDSh H=

DSc ll

=

l

Hll DV

=Re

D : 74khu/ch tn c;a sp trong d?u(m2/s)

: 74nh2t c;a ch)t l


120/650

31

li#u %0php tnh ton %i:u chYnh x+y ra (ngh\a l %i0m %=c % %&'c

xc %2nh, t nh4t l m)cPp nhi#t %)/ph5n trUm khBi l&'ng sp %&'c

xc %2nh v thnh ph5n tham chi;u % %&'c xc %2nh).

Ph*(ng p hp tnh (Methods Page)

M hnh Profes Wax %&'c thi;t lp bJng cch chLn tE danh sch

hi#u chYnh lMng %Lng (Deposition Correlation). Vi#c thi;t lp h#

thBng %&-ng Bng sKkhng %&'c gi+i quy;t cho %;n khi %)dy c6a

lCp lMng %Lng %&'c xc %2nh trn trang Profiles. Khi %) dy c6a

lCp lMng %Lng ban %5u %&'c xc %2nh, m hnh sKtnh ton s


121/650

32

S%li-u sp (Wax Data Tab )

Wax Datatab cho php lIa chLn m hnh sK%&'c s


122/650

33

Khi hJng sBcn bJng cho mVi c4u t


123/650

34

T4t c+cc m hnh %i h,i ph+i phn tch chi ti;t thnh ph5n c6a

ch4t l,ng %0s


124/650

35

c th0xc %2nh hai c4u t


125/650

36

Thnh ph5n c4u t


126/650

37

N;u dRli#u %ng th %5u tin qu trnh %i:u chYnh sKtnh ton cn

bJng l,ng h(i (VLE flash) /%i:u ki#n tiu chuNn /15oC v 100kPa

cho thnh ph5n c6a dng l,ng tham chi;u. K;t qu+ tnh ton ny

%&'c s


127/650

38

Trang cc thuGc tnh (Properties Page)

Propertiespage cho php xc %2nh cc thu)c tnh ch4t lMng %Lng

yu c5u cho m hnh Profes Wax tnh ton. Trong trang ny gWm

ba thu)c tnh:

Mt %)ch4t lMng %Lng

Q)dbn nhi#t c6a ch4t lMng %Lng Hi#u su4t theo chi:u di c6a ch4t lMng %Lng

Trang mJt cKt (Profile Page)

Trong Profilepage c Depositi on Prof il e tab. B+ng ny c hai m=c

%ch: S


128/650

39

Limits Page (trang giLi hDn)

Limitspage cho php xc %2nh giCi hSn tBi %a cho cc thng sBsau:

Q)dy lCn nh4t c6a ch4t lMng %Lng

Q)gi+m p su4t ton ph5n

TDng th0tch ch4t lMng %Lng

Q)gi+m p tSi %5u nBi

Th-i gian m ph,ng.

www.thuvien247.net


129/650

40

4.2.8 Pipe Example

V d= ny sK minh hLa cch s


130/650


131/650


132/650

43

3. Desc "Elbow: 45 Std"

K hi#u nhn (m t+) %5u nBi "elbow45std". K hi#u ny %&'c

s


133/650


134/650

45

4.3 Chia dng (Tee)

Teel thi;t b2dng %0chia m)t dng s+n phNm thnh nhi:u dng

khc nhau vCi thnh ph5n v cc %i:u ki#n t&(ng tInhau, v %&'c

s


135/650


136/650

47

sang M ph,ng %)ng, t[sB l&u l&'ng dng sKkhng thay %Di n;u

nh& cc gi tr2 nJm trong kho+ng giRa 0 v 1 (chng sKbJng l&u

l&'ng dng %)ng c6a cc phn %oSn)

User Variables Page

Trang ny cho php ng&-i s


137/650

48

4.4 Valve

HYSYS thIc hi#n cn bJng vt ch4t v nUng l&'ng trn dng ra v

dng vo c6a Van. HYSYS tnh ton trn c(s/cn bJng vt li#u v

enthalpy c6a hai dng. Coi qu trnh hoSt %)ng c6a cc van l qutrnh %ang entropi.

D&Ci %y l danh sch c6a cc bi;n c5n ph+i khai bo cho van hoSt

%)ng. T4t c+c ba thng sBtrong sB% ph+i %&'c khai bo tr&Cc %0

Van c th0%&'c tnh ton. t nh4t trong sB% c m)t gi tr2nhi#t %)

v m)t gi tr2p su4t ph+i %&'c cung c4p. HYSYS sKtnh ton hai

thng sBch&a bi;t khc:

Nhi#t %)dng vo

p su4t dng vo

Nhi#t %)dng ra

p su4t dng ra

Q)gi+m p c6a van

Q0ci %Pt Van, b4m phm F12 v chLn Van tEgiao di#n Unit OpshoPc chLn bi0u t&'ng Valve trong Object Palette.

Q0 b, qua cc hoSt %)ng c6a Van trong qu trnh tnh ton, kch

hoSt Ignored. HYSYS sKb,qua cc hoSt %)ng cho %;n khi xa b,

kch hoSt Ignored.

4.4.1 Design Tab

Design tab c 4 trang nh& sau: Connections, Parameters, UserVariables, v Notespages.

Connections Page

Connectionspage cho php khai bo tn c6a Van, c8ng nh&tn cc

dng nguyn li#u v dng s+n phNm.

www.thuvien247.net


138/650

49

Parameters Page

Q) gi+m p c6a van c5n ph+i %&'c khai bo trong trang

Parameters.

User Variables PageUser Variablespage cho php ng&-i s


139/650

50

Conditions page hi0n th2%i:u ki#n c6a t4t c+ cc dng vo v ra

c6a van. Trang ny cho php khai bo dng hoPc s


140/650

51

3. Thi;t lp VALVE vCi cc tham sBsau:Co

QLc k;t qu+trong Worksheettab

www.thuvien247.net


141/650

52

4.5 Van giHm p (Relief Valve)RELIEFVALVE c th0%&'c s


142/650

53

Parameters Page

Parameter page c ch@a hai %0khai bo:

Object M t3

Opening Pressure tSi p su4t ny van gi+m p sKbMt %5u m/

Full Open Pressure tSi p su4t ny van gi+m p sKm/hon ton

User Variables Page

User Variablespage cho php tSo ra v thIc hi#n cc bi;n trong

qu trnh m ph,ng. Q0bi;t thm chi ti;t, xem trong ti li#u h&Cng

dbn (ch&(ng User Variables trong Customization Guide).

Notes Page

Notespage cung c4p m)t trnh soSn th+o vUn b+n, c th0ghi lSi b4tkXcc ki;n hoPc thng tin lin quan %;n hoSt %)ng c6a valve hoPc

m ph,ng ni chung.

4.5.2 Ratings Tab

N;u %ang lm vi#c trong m ph,ng t\nh th khng c5n ph+i thay %Di

thng tin trong giao di#n ny.

4.5.3 Worksheet Tab

www.thuvien247.net


143/650


144/650

55

3. By gi-kh/i tSo SEPARATOR vo Flowsheet v khai bo cc

tham sBsau:

4. Thi;t b2tch yu c5u m)t van gi+m p. Q0thm van gi+m p, c

th0 b4m phm F12 v chLn tE Unit Ops hoPc l chLn bi0u t&'ng

Relief ValvetEObject Palette.

5. Qi:n vo Design tab c6a giao di#n hi0n th2 tnh ch4t c6a van

gi+m pRelief Valve, nh&trong b+ng sau :

6. Trn Worksheet tab c6a giao di#n hi0n th2 tnh ch4t c6a van

gi+m p, nhp gi tr2 p su4t c6a dng ra kh,i van gi+m p l102.325 kPa.

7. Nh&vy l % hon thnh vi#c khai bo cc thng sBcho ton h#

thBng. Trn thanh trSng thi pha d&Ci c6a giao di#n property view

c mu %,vCi dng thng bo Material Flows into closed valve.

Van gi+m p hi#n tSi ph+i %ng hon ton v p su4t trong thng

ch@a ch&a %St %;n ng&fng m/van.

www.thuvien247.net


145/650

56

8. Thay %Di p su4t dng nguyn li#u vo tCi 160 kPa. Khi ny van

an ton sKm/. Vo Worksheet tab %0xem k;t qu+ tnh ton. Giao

di#n hi0n th2k;t qu+nh&trong hnh sau.

4.6 Ti li0u tham khHo

1. Gregory, G.A., Mandhane, J. and Aziz, K., Some DesignConsiderations for Two-Phase Flow in Pipes, J. Can. Petrol.

Technol., Jan. - Mar. (1975).

2. Beggs, H.D., and Brill, J.P.,A Study of Two-Phase Flow in

Inclined Pipes, J. Petrol. Technol., p. 607, May (1973).

www.thuvien247.net


146/650

1

5 - Rotating Equipment

5.1. My nn/ Expander

5.1.1 Theory................................................................................. 3

5.1.2 Design Tab ........................................................................... 7

5.1.3 Rating Tab........................................................................... 10

5.1.4 Worksheet Tab ....................................................................... 13

5.1.5 Performance Tab.................................................................... 13

5.1.6 Dynamics Tab ........................................................................ 14

5.1.7 Compressor Example.............................................................. 14

5.2. My nn piston (Reciprocating Compressor)

5.2.1 Theory..................................................................................... 18

5.2.2 Design Tab ............................................................................. 22

5.2.3 Rating Tab............................................................................... 24

5.2.4 Worksheet Tab ....................................................................... 25

5.2.5 Performance Tab.................................................................... 25

5.2.6 Dynamics Tab ........................................................................ 26

5.2.7 Reciprocating Compressor Example....................................... 26

5.3. My b)m

5.3.1 Theory..................................................................................... 29

5.3.2 Design Tab .............................................................................. 31

5.3.3 Rating Tab................................................................................. 33

5.3.4 Worksheet Tab ......................................................................... 335.3.5 Performance Tab....................................................................... 33

5.3.6 Dynamics Tab .......................................................................... 33

5.3.7 Pump Example.......................................................................... 34

www.thuvien247.net


147/650

2

5.1. My nn/ Expander

My nn l thi;t b2dng %0 tUng p su4t dng kh vo. Ph= thu)c

cc thng tin %&'c cho tr&Cc, my nn sK tnh ton cc tnh ch4t

khc c6a dng (nh&p su4t hay nhi#t %)) hoPc hi#u su4t nn.Epander l thi;t b2%&'c s


148/650

3

Cc %2nh lut nhi#t %)ng %i:u khi0n qu trnh hoSt %)ng c6a My

nn v Expander l giBng nhau, nh&ng h&Cng c6a dng nUng l&'ng

l ng&'c nhau. Qu trnh nn yu c5u nUng l&'ng, trong khi qu

trnh gin n/gi+i phng nUng l&'ng.

Q0 nhp thi;t b2My nn, b4m phm F12 v chLn Compressor tEb+ng UnitOps, hoPc chLn phm Compressor trong Object Palette.

Thi;t lp thi;t b2Expander t&(ng tInh&trn.

Q0b,qua Compressor v Expander trong suBt qu trnh tnh ton,

lIa chLn Ignored trong h)p chLn. HYSYS sKhon ton b,qua thi;t

b2% cho %;n khi khi ph=c tr/ lSi trSng thi hoSt %)ng bJng cch

xa d4u chLn trong h)p chLn vEa rWi.

5.1.1 Nguyn l

QBi vCi my nn, hi#u su4t %ang entropy %&'c tnh bJng t[ sBc6a

nUng l&'ng %ang entropy yu c5u cho qu trnh nn vCi nUng l&'ng

yu c5u thIc t;

QBi vCi thi;t b2 Expander, hi#u su4t %&'c cho l t[ sB c6a nUng

l&'ng thIc t;%&'c tSo ra trong qu trnh gin vCi nUng l&'ng tSo ra

trong m)t qu trnh gin %ang entropy

QBi vCi thi;t b2Compressor hay Expander %oSn nhi#t, HYSYS tnh

ton qu trnh nn (hoPc gin) m)t cch chPt chK theo %&-ng %ang

entropy tEp su4t dng ra %;n dng vo. S


149/650

4

c %i:u ki#n c(hLc c tnh kh+ngh2ch. QBi vCi qu trnh b4t thun

ngh2ch, hi#u su4t %a h&Cng sK nh, h(n 100%. Ph= thu)c vo qu

trnh l gin hay nn, HYSYS xc %2nh cho qu trnh thun ngh2ch

c(hLc l nhn hay chia vCi m)t hi#u su4t %0%&a ra ga tr2lm vi#c

thIc t;. Bi0u th@c c6a hi#u su4t %a h&Cng %&'c cho giBng nh& ccph&(ng trnh /trn.

Ghi nhC rJng t4t c+ cc %Si l&'ng nhi#t %)ng hLc %&'c xc %2nhbJng cch s


150/650


151/650

6

p su$t my nn

Cc p su4t %oSn nhi#t v %a bi;n %&'c s


152/650

7

5.1.2 Tab thi*t k*

Trang Conections

Trang Conectionsnh&%&'c cho /hnh d&Ci %y, l c6a My nn.

Thng tin %&'c yu c5u trn trang Conections c6a Expander lt&(ng tI; chY c m)t %i0m khc l cc bi0u t&'ng expander %&'c

bi0u diOn nhi:u h(n cc bi0u t&'ng My nn

Trn trang Conections, %i:n tn thi;t b2 vn hnh, tn dng vo,dng ra v dng nUng l&'ng.

Parameters Page

Trang Parametersc6a Compressor t&(ng tIvCi Expander. ChYc

m)t %i0m khc l cc bi0u t&'ng %&'c s


153/650

8

Links Page

Cc my nn v cc Expander mbu trong HYSYS c th0c cc tr=c

%&'c k;t nBi vt l vCi thi;t b2vn hnh. SIk;t nBi cc my nn v

Expander trong HYSYS c ngh\a l:

TBc %)c6a mVi thi;t b2%&'c k;t nBi l giBng nhau

TDng c6a cc cng su4t c6a mVi my nn/expander %&'c k;t nBi

Q)gi+m nUng l&'ng tDng c)ng bJng 0. Q)gi+m nUng l&'ng tDngc)ng (The Total Power Loss) nJm trn Links page c6a Design Tab.

www.thuvien247.net


154/650

9

Danh sch c6a cc compressors/expanders hi0n th2c th0bi0u diOn

bJng cch kch vo phm th+xuBng trong mi:n Upstream Link hoPc

Downstream Link. Trong h5u h;t cc tr&-ng h'p, %Pc tnh k> thut

thm vo cho b4t kX thi;t b2 vn hnh %&'c k;t nBi cho php m

ph,ng %0hon thnh gi+i php. M)t cch l t&/ng nn %2nh r m)ttrong cc gi tr2sau cho mVi thi;t b2%&'c k;t nBi:

Cng su4t (Duty)

TBc %)(Speed)

Q)gi+m nUng l&'ng tDng c)ng (Total Power Loss)

N;u bSn muBn cung c4p nUng l&'ng tDng c)ng c


155/650

10

N;u khng s


156/650

11

5. VCi mVi %Wth2thm vo, thao tc lSi b&Cc 3 v 4. LoSi hi#u su4t

ph+i thBng nh4t vCi t4t c+%Wth2%&a vo.

HYSYS sKs


157/650

12

Khi bSn chLn phm Erase Selected, dng hi#n th-i c6a b+ng (Dng,

p su4t hay Hi#u su4t) sKb2xa. ChLn phm Erase Selected%0xa

t4t c+dRli#u L&u l&'ng, p su4t hay Hi#u su4t c6a %Wth2.

Single Curve

Khi bSn c m)t %W th2%(n, cc h# thBng sau c6a dng vo sKcho

php qu trnh hon thnh gi+i php (gi+thi;t l cc c4u t


158/650

13

Ch rJng my nn c8ng c th0%&'c s


159/650

14

5.1.5 Tab Performace

Results Page

Trn trang Results, bSn c th0xem b+ng k;t qu+tnh cc gi tr2cho

My nn/Expander: p su4t %oSn nhi#t p su4t %a bi;n Hi#u su4t %oSn nhi#t Hi#u su4t %a bi;n Cng su4t H#sBp su4t %a bi;n

SBm8%a bi;n SBm8%ang entropy TBc %) Q)gi+m cng su4t TDng th0tch d2ch chuy0n piston c ch TDng th0tch khng gian ch;t ring ph5n T[sBp su4t lCn nh4t Q5u ra c6a qu trnh nn Q5u vo c6a qu trnh gin

5.1.6 Tab Dynamics

N;u bSn %ang lm vi#c trong Steady State mode, khng yu c5u bSn

ph+i thay %Di b4t kX thng tin no trong cc trang %&'c truy cp

thng qua trang ny. Q0bi;t thm thng tin v:hoSt %)ng c6a My

nn v Expander trong Dynamic mode, xem thm thng tin /

Dynamic Modeling guide.

5.1.7 V d2my nn

M)t my nn %&'c m ph,ng vCi cc %Wth2hi#u su4t. Xt kh LP tE

nh my ch; bi;n d5u lm nguyn li#u %5u vo my nn. Trong

tr&-ng h'p ny, sKxc %2nh %(n gi+n hi#u su4t, dIa tr

Documents

106792187-Hướng-dẫn-học-HYSYS-va-Ứng-dụng-vao-mo-phỏng