تصميم نظام الانابيب.pdf

.

.

.

) )EASA( . )1.673S EASA(

. )EP( )CVP( CVP .

. .

. )1891,nosnehpetS ; 7891 ,EASA(

.

. .

" "

( ) :

( / ) :

( .) : ( / ) :

.

.

.

.

.

. : )RD(

t (.) = RDD

: = D

()

() = t

. (. .) .

. :

RD1

RP2S-

(.) =

1

tD

RP2So

-

(.) =

: (/ ) = RP (/ ) = S ( ) = oD ( ) = t

:

RD1

RP2S+

(.) =

1

tD

RP2S+ i

(.) =

: ( ) = iD

" "

-elirtinolyrca SBA(. .)

. eneryts-eneidatub

: .

2.0

=tl SS

: . = Stl

( .) . 0.2

. SBA EP CVP

) .(.)

(1.673S

)ISP( )aP.M( 0002 8.31 0211 CVP CVP 0002 8.31 0221 CVP CVP 0002 8.31 0212 CVP CVP 0061 0.11 6112 CVP CVP 0521 6.8 2112 CVP CVP 0001 9.6 0112 CVP CVP 008 5.5 8043 EP EP 036 3.4 6043 EP EP 036 3.4 6033 EP EP 036 3.4 6032 EP EP 005 4.3 5032 EP EP 0061 0.11 6131 SBA SBA 0521 6.8 2112 SBA SBA 0001 9.6 0121 SBA SBA

) )RP( .(.) (1.673S

SBA EP ) ( ) ( ) (CVP 0121 SBA 2112 SBA 6131 SBA 5032 EP 6043 EP 8043 EP 0112 CVP 2112 CVP 6112 CVP 0211 CVP

6033 EP 0221 CVP )RDS( 6032 EP 0212 CVP aPk isp aPk isp aPk isP aPk isp aPk isp aPk isp aPk isp aPk isp aPk isp ~apK isp . .

. . . . . . . . . . . . . .

( .) o * (/ ) = ~apK = RDS

. )RD( .

" "

( .)

. 6112CVP CVP ( ) . . ( ) .

. .

:

1

tD

RP2S+ i

=

( )

931 1.8mm052mm

tiD

==

( )

62 9.6mm052mm

tiD

==

: 6112CVP ( .) == S11.0aPM11,000aPk

: ( )

751aPk32isp) ( ) (

9311=@ RP211,000aPk

+ =

( )

518aPk711isp) ( ) ( 621=@ RP211,000aPk

+ =

.

)wal silluonreB(

.

:

f12 ) ( 1

2

11

2gh T2v

zHP

-

-

++

g

(.) =

: () = TH

g

() = P

(/ ) = g () = Z () = fH

: (.) g=g Sgw) (

: ( ) = gS (/ ) = w g

" "

( .) . / .

. ( / ) (.)

. .

.

. .

.

. .(.)

:

4.78

1.258

D f1CQ

hkL

(.) =

: = 1k ( ) = L (/) = Q = C ( ) = D

( .)

(. .) )1k( )IS( . ( .) ( o )

. ( .) .

.

" "

.

. .(.)

. 1k D Q L fh . / / . / . / . /

C .(.)

C

)CVP( )EP( -

-

- ( )

) (

-

- ( )

- ( ) - ( )

-

(.)

CVP .

. . / /

. :

(.)

4.78

1.258

D f1CQ

hkL

=

D / Q L( .) = k1.2201 101

)CVP( ( .)

= C051

) (] [) ( ) ( 1.258

4.7801

f002mm

04.0L/s/051 = h1.2201043m

= f h2.232m

=g= hh2.232m9.18Nk/m ff3) ( == f2 h12.798Nk/m12.798aPk

" "

-=- T043 H033aPk22aPk

=803 aPk

.

:

=

2gv

DhfL

2

(.) f

: ( ) = f

D L . :

5 2

D f2 (.) = hkLfQ

: = 2k

2k (..)

. : )NR(

n

=

0001 (.) N RvD

: ( /) = v () = D (/) = n

( o ) ./ -

. .(.)

1k D Q L fh . / . / . / . / . /

NR

: -

RN

(.) = f46

> NR> .

" "

. NR> . )9791 ,ttoM(

NR )f(

(. .) NR

. eD) (

:

) (

e

=

2 gol3.7Df1

( .) 1/2

= NR ( .) .

. :( )

) ( ) (

) (

+e

1/2 =-N

Rf 1/22.15

3.72 gol/D

f ( .) 1

f (.)

,kcodruM( )f(

: 1f . )6791

) (

+

e

=+

1/3

N

6

R 101

D/ ( .) f0.5500100002

( .)

( .) 1f . f ,ttoM( f

( .) . )9791 .

(. . ) .(.)

. ) .(.)

(. () e

. .

. . . . . .

" "

. . . . . .

. . . .

( .) .

. :

) ( ) (

=

2.152 golRf

fN1/2 1

( .) 1/2

.

( ..)

(.)

CVP .

. . / /

. - :

(.)

5 2

D f2 = hkLfQ

D / Q L( .)

= k8.36201 27 )CVP( ( .)

e=0.510mm

) (

p

==

322

0001mm1m

4/002mm

0001L1m

04.0L/sAQ

v

= v1.372 ms

n

=

0001 N RvD

) (

=

0001101m/s002mm

N62 R1.372m/s

= R2.5501 N5

. eD) ( f (..)

=

0.510mm2gol3.7002mm

f 1

9.683 f

1 =

= f0.4110

. . eD NR ( .) ( .) f

(. .) : NR eD ( .)

" "

= f0.5510 (..)

5) () ( ) () (2

7f

002mm04.0L/s

= h8.362010.5510043m

= f h2.771m

=g= hh2.771m9.18Nk/m ff3) ( = f h12.63 aPk

-=-= T043 H033aPk121aPk903aPk

-

-

- .

. -

.

.

. . .

.

(. .) )H(

. L .

. vo t

.

. . vo

(. .) )b( . . DH

. = tLa . a ( . )c( )

. DH

. H vo

= t2La . )d(

.{)e( } = t

" "

.(.)

. . {)f( . } a

= t3La . )g( .

H . a

= t4La 4La (. )a( .)

. .

: . ( ) . ( ) . ( )

:

v gD Ha

( .) D=

: ( ) = DH (/) = a (/) = g (/) = Dv

.

( ) ( ) ( )

" "

( ) ( ) . ( )

: )4891 ,srettaW(

0.5 1

0.5

1

CtD

E1K

kKa

+

r

(.) =

: (/) = a = 1k (/) = k (/) = r () = D () = t (/) = E = 1C

,srettaW( . . )4891

( .) 1C1.52 =-m ( .) =-m C1 12

( .) = 1C1.0 :

. = m

1k . t D ( .) E k

1k ( / r k) )IS( / r / k . . 1k

( .) (. .) ( .) ( .) a k

a ( .) . .

. ( .)

. .

.)1891 ,nosnehpetS ; 4891 ,srettaW(

(.)

. , . .

. / . .

. .

" "

.(.)

(/) ( ) (/) (/) (/) (/.) () () . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. .(.)

(/ ) ( ) . .

. .

. .

.

( .) ( .) . o

= k2.9101N/m 92 = E2.7001N/m 112

r=899gk/m3 m=0.03

= 1k1.0

=-m= 1C1.520.59

1/2 11

9

1/2

3

92

0.590.550m

0.5m2.700112.9101

899gk/m1.02.9101N/m

a

+

=

= a8141m/s

) ( 8141m/s

20051ma

2L == t

= t2.21s .

2) (

3

0.5m4

0.4m/sv

p

D=

D= v2.40m/s

" "

v gD Ha

D=

2.40m/s) ( 9.18m/s 2 H8141m/s

D=

D= H592m .

( .)

/ ( ) o 0221 CVP 051

. / .

( ) . .

/ = RP= ( )

1

tD

RP2So

-

=

0221 CVP ( .) = S0002 isp

RP

21ni./t1 ) ( 051isp0004isp

-

=

n.i 4337.0t = ). ( ).(

psi 313000k = psi 400000E =

3ft/slugs 938.1=r t2DD oi -=

( )in 4337.02in 12 -= in 133.11=

:

( ) 2/12/1

3

0.1.in4337.0.in133.11

psi000,400psi000,3131

ft/slugs938.1psi000,31312

a

+

=

s/ft1052a = :

vgaH D=D

( )s/ft0.2s/ft17.32s/ft1050H 2

=D

psi3.28ft29.65H ==D ) ( :

1

tD

SS0.2

Po

f

lt

max

-

=

" "

(.) = tlS2.0S) (

=2.00002isp) ( = tlS0004isp

.

) (

10.7334ni.

21ni.2.8

2.00004isp

xamP-

=

= xamP701 isp

D=- HRPP xamxam

D=- xamH051isp701isp

D= xamH34isp

: D=D xamxam vHg/a) (

) () ( ) (

=

2501tf/s34isp2.13tf/isp23.71tf/s

2

D= xamv3.40tf/s

( ) ( .) )EASA(

.

" "

(1.673S EASA * ) .(.)

SBA EP ( ) ( ) ( ) CVP 0121 SBA 2121 SBA 6131 SBA 5032 EP 6043 EP 8043 EP 0112 CVP 2112 CVP 6112 CVP 0211 CVP

6033 EP 0221 CVP 6032 EP 0212 CVP aPk isp aPk isp aPk isp aPk isp aPk isp aPk isp aPk isp aPk isp aPk isp aPk isp . .

. . . . . . . . . . . . . .

. RD RDS . )RP( = * ( .) o *

.

.

.

. .

.

.

.

.

.

.

. .

" "

.

.

.

( ) - ( )

( / ) / ( )

- .

.

.

.

.

(. .)

( .) . .

. .(.)

. .

.

(..) . ( .)

.

. .

.

" "

. .

/ .(.)

.

. . . ( . .)

. .

.

.

.

.

.

. .

( .) .

(.)

. (..)

(1.673S )

() () () ()

. . - . -

.

() () () ()

. . -

.

" "

.

. .

(. .) -

.

. .

. .

.

.

. .

.

.

( .) .

.

.

.

:

" "

.(.)

.

. .

.

. .

.

. .

( .) .

. .(.)

:

I

ghtd-D vd

(.) =

: = Dh

() () = l

:

) ( td (.) = pt AvAhd

: () = pA () = tA

" "

= t ( .) ( .) = oVV = Dh

. )1891 ,nosnehpetS(

) ( ) (

D=

0.5

t

p0.5

t

pA1 0

Agnist

AgA1

(.) hv

: () = t

. )naidaR( )nis( ( .)

.

(.)

. . / .

. . . .

.

fsh h .

=D fsh1.5h

(..)

) ( ) (

D=

0.5

t

p0.5

t

pA1 0

Agnist

AgA1

hv

:

) () (

) ( ) ( ) (

D=

0.5

2

0.522

22

2

0.02m003m0.03m9.18m/s

nis0.5s0.02m9.18m/s

0.03m003m h1.5m/s

D= h1.86 m =D= fs h1.5h2.5m ) (

.

. .

. .

.

. .

.

.

" "

.

)EASA( .

. )1891 ,nosnehpetS(

()

( )

. ( ) .

. (..)

(.1.673S EASA ) .(.)

() () () () () () - -

(. .) ( )

. ( ) .

. . .

.(.)

() () () ()

. .

.

. .

:

(... ) - (. ) - . - . -

" "

.

. . ( .)

(:.) ( .)( .) -

. (..) - ( ) -

(. )

(1.673S EASA ) .(.) (.1.673S EASA ) .(.)

o. o o T () ()

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(.1.673S EASA ) .(.)

(/) ( )

. ( .)

" "

)N( .

. . )isP( )bI(

( .) . ( )

.

(.1.673S EASA ) .(.)

() () () ()

. . . . .

. . . . .

. . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . .

(.)

o .

.

. o ( .) )T(

= T031.5685 aPk) ( = T67,081 N

( .) :)bS(

= bS051 aPk

:

051aPk

67,081Ns

ATb

== r

= A0.15m r2 .

(. / ) .

(. ) : : .

(..)

" "

REFERENCES

American Society of Agricultural Engineers, "Design, Installation and Performance of Underground Thermoplastic Irrigation Pipelines," ASAE Standard S376. 1, ASAE, St. Joseph, Michigan, 1987, pp. 501-511.

COLEBROOK, C. F., "Turbulent Flows in Pipes with Particular Reference to the Transition Region between Smooth and Rough Pipe Laws," Journal Institute of Civil Engineers. London,1939.

MOODY, L. F., "Friction Factors for Pipe Flow," Transactions of the American Society of Mechanical Engineers, vol. 66, 1944, p. 671.

MOTT, R. L., Applied Fluid Mechanics, second edition. Columbus, Ohio: Charles E. Merrill Publishing, 1979.

MURDOCK, J. W., Fluid Mechanics and Its Application. Boston: Houghton Mifflin, 1976.

STEPHENSON, D., Pipeline Design for Water Engineers, second edition. Amsterdam: Elsevier, 1981.

WATTERS, G. Z., Analysis and Control of Unsteady Flow in Pipelines. second edition. Boston: Butterworths, 1984.

-. .

. .

CVP -.

. / .

.

-.

. / .

. . .

-.

)C( . / .

)d( ) r ( o -.

/ . . .

" "

-.

. . . .

. / .

.

-. . / .

= t . .

. = t

. -.

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تصميم نظام الانابيب.pdf