Piping Stress Hand Book 4 Mar 08

PRACTICAL PIPING STRESS

HANDBOOK

Piya Kittitanesuan, B.Eng., Mech. ( )

Piping Engineer

Pyry Energy Ltd Bangkok, Thailand

First Issued : January 1998 Last Update : February 2008

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() 2534 () ..2538 (Piping Experiences) 1995-2000 (over 4 years) Foster Wheeler International Corp. 2000-2002 (2 years) Toyo Engineering Ltd. 2002-2003 (1 year) NKK Engineering Ltd. 2003-2004 (6 month) Pro-En Technologies Ltd. 2004-2005 (1year 8 month) Chevron Offshore (Thailand) Ltd. 2005-Present Pyry Energy Ltd.

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Page i (Vocabulary) ii 1 Basic Piping Stress Analysis CAESAR II 1

1.1 Basic Piping Stress Analysis 1.2 Basic Stress Quantities 1.3 Code Compliance Basics 1.4 Code Stress Allowable 1.5 Checking Step for Stress Analysis 1.6 Piping Stress Analysis Method

2 Static Analysis x

2.1 Linear and Non-Linear Equation 2.2 CAESAR II Type Support 2.3 Linear and Non-Linear Restraint 2.4 Static Analysis

3 Piping on Rack x

3.1 Pipe Rack Design for Process Plants 3.2 Piping Layout on Pipe Rack 3.3 How to design pipe support for lines on pipe rack 3.4 How to design expansion loop

4 Pipe Support Design x

4.1 Introduction to pipe support design 4.2 Guideline for shoe selection 4.3 Guideline for Pipe Support 4.4 Minimum Leg Required 4.5 Pipe Support around Equipment

5 Spring Hanger Design x

5.1 Variable Spring Hanger 5.2 Constant Spring Hanger 5.3 Spring Function 5.4 When install spring support

6 Jacket Pipe x

- How to model and analysis jacket pipe - Model jacket pipe by equivalent method - Minimum leg require for jacket pipe - Critical Buckling Force for Jacket pipe

7 Dynamic x

- Introduction of Dynamic Theory - Characteristics of Dynamic Load - Dynamic analysis for reciprocating compressor line - How to solve static and dynamic problem - Impact load analysis - Water Hammer - Wind Load

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8 Seismic Analysis x

- Seismic code - Using CAESAR II for seismic analysis - How to set up Caesar II for seismic load - Caesar II load case to be analyzed for seismic load - How to design pipe support for seismic load - How to reduce seismic load and stress

9 Stress Analysis for Underground Piping x 10 file Program CAESAR II x

- file CAESAR II - CAESAR - Unit file -

11 3D CAD and CAESAR II x

- Introduction to PDMS 3D and STRESS -C - STRESS-C (neutral file) CAESAR II - neutral file piping input file - Introduction to PDS and PD-Stress

12 CAESAR II Structural Model x

- How to use CAESAR II model the structure - How to include structure model to piping model

13 How to develop online piping calculation on web site x

- Develop web programming for online calculation - pipe wall thickness - maximum pipe span - pipe branch reinforcement - pressure drop calculation - trunnion arm loading calculation - flange leakage calculation - cantilever bracket calculation

(REFERENCES) x APPENDIX A: Equipment Allowable Nozzle Loads x APPENDIX B: CODE stress x APPENDIX C: Stress Analysis Check List x APPENDIX D: CAESAR II Load Case to be Analysed x APPENDIX E: Pipe Span Calculation x APPENDIX F: Piping Program develop by using Visual Basic x APPENDIX G: How to include piping input file x APPENDIX H: Hot Sustain and Cold Sustained Stress x APPENDIX I: Unix and Apache Server, PHP, Mysql Database and PHPMyadmin x

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. 2538 (Piping Engineering) Piping Stress Analysis Piping Stress

1 piping stress analysis CAESAR II piping engineering Mr.John M Nedovich, Mr. David Maloney, Mr. Brian Hutchison Mr.Steve Holdaway () . ST SA SU pipingengineer.com

2550

5

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(Vocabulary)

Anchor

B Corrosion Allowance D E F G H I J K L M N O P Q R S T U V W X Y Z

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BASIC PIPING STRESS CAESAR II By Piya Kittitanesuan

( ) Lead Piping Engineer

Poyry Energy Ltd. (Thailand)

(update 29 February 2008) (Basic Piping Stress Analysis) (Operating Temperature) (Ambient Temperature) ambient code (Piping Engineer) (pipe support ) line stop, guide nozzle (Equipment)

Allowable Forces Moments Allowable Allowable Load code pump code API 610 steam turbine code NEMA SM23 Tank code API650 code (project) code

(Flexibility) (Fitting) pressure drop

1

1.1 BASIC STRESS QUANTITIES

pipe stress

stress

AXIAL STRESS ()

Axial Stress = Force Area

SHEAR STRESS ()

Shear Stress = Force in Shear Shear Area

BENDING STRESS () = M c M I M- Moment @ cross section c- Distance from neutral axis to outer surface I cross section moment of inertia = (do4 di4) 64

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LONGITUDINAL PRESSURE STRESS PL = F / A = Pd/4t

HOOP PRESSURE STRESS PH = F = P d

A 2 t d outside diameter inside 1 [ F = 0 ] 2 F = Pdi L PH = Pdi L = Pdi 2t L 2t hoop pressure stress LAME PH = Pri2 + L ri2 ro2 P / r2 ro2 - ri2

r = position thru the thickness

3

1 program CAESAR II 4 option ID, OD, MEAN LAMES_EQ conservative base hoop stress on OD ID

piping stress analysis CAESAR II TOOL main menu CAESAR II Version 5.00 Configures/Setup dialog box 1

1 diameter hoop stress CAESAR II Longitudinal Stress longitudinal stress

4

bending , axial pressure longitudinal stress

U.S Code longitudinal stress

ASME B31.3 stress Sustained Stress combine stress B31.1 Sustained Stress

ASME Code Sustained Load longitudinal stress Sustained load Sustained Stress (SL) 1.3 CODE COMPLIANCE BASICS : ASME CODE

1. Sustained ( or Primary ) Stress Failure 2. Expansion (or Secondary ) Stress Failure

Mc + Pd I 4t Bending pressure

Mc + F + Pd I A 4t Bending axial pressure

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PRIMARY STRESS 1. primary stress plastic deformation

rupture.

2

2. (weight) (pressure) Allowable limits sustained stresses yield stress material

3. (fatigue)

4. cyclic SECONDARY STRESS 1.

(thermal expansion) 2. crack

3

OCCASIONAL STRESS (wind), (earthquakes), steam

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water hammer, Pressure Safety Valve (PSV) 1.4 CODE STRESS ALLOWABLE : Power Plant Code B31.1 Process Plant Code B31.3 Process Plant Power Plant Code B31.1 B31.3 code B31.3 Code stress allowable THE SUSTAIN ALLOWABLE STRESS

hot yield stress factor sustained stresses materials elastic limit operating design

SL = Stress sustained load Sh = Hot Allowable stress 0.666 Sy 0.25 Su Sh table A-1 ASME B31.3 carbon steel A53 Gr.B 200 Sh = 20000 psi. SI 145 137.93 N/mm2 145 145.037743897 piping stress package ASME Code ASME B31.1 , B31.3

SL < Sh

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THE EXPANSION ALLOWABLE STRESS RANGE

yield stress safety factor , cyclic reduction factor mean stress total stress range ( expansion sustained) set yield stress

SA = f ( 1.25 Sc + 1.25 Sh SL )

SA = Allowable Displacement Stress Range

f = Cyclic reduction factor for fatigue from Table 302.3.5 (B31.3 edition 2002)

Sc = Cold allowable stress Sh = Hot allowable stress SL = Longitudinal Stress f code B31.1-2004 table 102.3.2

f = 1.0 7000 f = 0.9 7000 14000 f = 0.8 14000 22000 f = 0.7 22000 45000 f = 0.6 45000 100000 f = 0.5 100000

B31.3-2002 table 302.3.5 B31.1 Edition B31.3-2004 plot graph Fig. 302.3.5 B31.3 Edition 2004 f 1 Ferrous material minimum tensile strength 75000 psi (517 MPa) 371

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4 f ASME Code B31.3 Edition 2004

7000 relief valves relief valve operating condition operate shut down 1 THE OCCASIONAL STRESS stress (seismic ) wind load, water hammer 7 Allowable stress ASME Code Sh 10 30 % 1.1Sh 1.33Sh code B31.1 1.15Sh -1.2 Sh B31.3 1.3 Sh B31.1 Power Piping safety factor B31.3 Process Piping

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1.5 Check Piping Stress

1. sustained stress (SL) primary load weight pressure

2. expansion stress (SE)

3. Sustained Stress 1 allowable stress : Sh SL Sh

4. Expansion Stress (SE) 2 allowable

a. B31.3 SA = f (1.25Sc + 0.25Sh) ___ (B31.3 Eq.1a)

SL Sh SA

SA = f (1.25Sc + 1.25Sh SL ) ___ (B31.3 Eq.1b)

SE < f (1.25Sc + 1.25Sh SL )

b. B31.1 SA = f (1.25Sc + 0.25Sh) _____(B31.1 Eq.1) B31.1 SL Sh allowable SA + f (Sh - Sc) SA

SE < SA + f (Sh - Sc) ___ (B31.1 Eq.13b)

3 SL Sh Code B31.3 CAESAR II report Eq.1b Eq.1a

Code B31.1 Eq.13b Eq.1

5. occasional load stress

kSh k 1.1 1.3

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Critical line critical Non critical line critical line CAESAR II Output Stress Analysis Report

CAESAR II SL Sh SE SA

Carbon Steel ASTM A106 Grade B Code B31.1 stress Stress Node 40 120 1.5

5

11

5 node 120 stress

12

Sh

6 6 Stress report run static analysis maximum stress sustained load node 120 7971.7 lb/sq.in ( psi) allowable hot stress (Sh) 17100 psi.

stress (SL) (Sh) 46.6 % step 3 1.5

SL 16000 psi report

ASME B31.1 ASME CAESAR II Sh 15000 psi What do you expect to see?

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CAESAR II feedback error

stress check passed input run output check stress

piping stress piping stress analysis CAESAR II AUTOPIPE

nozzle load allowable vendor TLP 110 MW vendor steam turbine nozzle load allowable nozzle load 150 N. 9.81 15.3 kg. 20 ( ) nozzle steam turbine vendor nozzle 150 N. valve . steam turbine

SL Sh SE SA

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Allowable Stress Expansion Case

SE =11034.5

7 stress expansion case 7 report sustained stress Expansion stress stress node 50 SE = 11034.5 psi SA = 39632.2 psi ASME Code B31.1

SA = f(1.25Sc+0.25Sh) Sc=17100 psi Sh =17100 psi

SA = 1(1.25x17100+0.25x17100) SA = 25650 psi SL < Sh allowable Allowable = SA + f(Sh SL)

Allowable = 25650+ 1x(17100-3117.8) Allowable = 39632.2 psi

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node 50 SL =3117.8 psi sustain stress report Figure 8

SL = 3117.8 psi

8 SL node 50 3117.8 psi

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SE = 11034.5 psi

9 SE node 50 11034.5 psi 9 expansion stress (SE) node node 50 SE 11034.5 psi 4 SE allowable 39632.2 psi node 50 expansion stress node 120 allowable expansion stress range ASME Code B31.1

SA = f(1.25Sc+0.25Sh) Sc=17100 psi Sh =17100 psi

SA = 1(1.25x17100+0.25x17100) SA = 25650 psi SL < Sh allowable Allowable = SA + f(Sh SL)

Allowable = 25650+ 1x(17100-7971.7) Allowable = 34778.3 psi

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CAESAR II report 11

allowable stress range ASME B31.3

SA = f (1.25Sc + 1.25Sh SL ) ___ (B31.3 Eq.1b)

SA = 1(1.25x17100+1.25x17100-7971.7) SA = 34778.3 psi

Allowable Expansion Stress Range power plant (B31.1) process plant (B31.3)

10 Stress report sustained stress case

SL SH

SL=7971.7 psi node 120 SA Expansion Stress 18

SA=34778.3 psi node 120

SA =f[1.25(Sc+Sh)-SL]

11 Stress report expansion stress case 1.6 (Piping Stress Analysis Method) ASME B31.3 3

1. By Visual Inspection His pass experience

2. Approximate Method

Table ,Chart

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3. Comprehensive Analysis stress

piping stress engineer CAESAR II, Autopipe Editpipe Tractebel, etc. CAESAR II

Code Chart piping stress engineer critical line list

Chart Stress Method Process Plant Layout and Piping Design Ed Bausbacher & roger Hunt

(computer analysis)

Visual Analysis or judgement

Manual

10 NPS Pipe with 400 F critical line comprehensive computer analysis

400 F

10

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Computer A riteria nalysis C

rotating equipment pipe size 3 critical line stress comprehensive analysis CAESAR II Poyry Energy Ltd. (Thailand). Technip Simflex Tractebel Edit Pipe CAESAR II chart guide line 10 400 by visual analysis young piping stress engineer (loss containment) omputer analysis 21

c

80

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2 STATIC ANALYSIS

By Piya Kittitanesuan Piping Engineer

PYRY ENERGY LTD. (Thailand) (update 23 January 2007)

(LINEARIZATION EQUATION) Linear

Y=2X+1 (1)

non-linear

Y=2X2 +1 (2)

X = 1 , Y 3 X = -1 1 Y = -1 2 Y 3 CAESAR II pipe support

1 2 X Y CAESAR II

Support Type CAESAR II CAESAR II support Restraint

Restraint Type Abbreviation

Anchor ANC

Translational Double Acting X, Y, or Z

Rotational Double Acting RX, RY, or RZ

Guide, Double Acting GUIDE

Double Acting Limit Stop LIM

Translational Double Acting Snubber XSNB, YSNB, ZSNB

Translational Directional +X, -X, +Y, -Y, +Z, -Z

Rotational Directional +RX, -RX, +RY, etc.

Directional Limit Stop +LIM, -LIM

Large Rotation Rod XROD, YROD, ZROD

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Restraint Type Abbreviation

Translational Double Acting Bilinear X2, Y2, Z2

Rotational Double Acting Bilinear RX2, RY2, RZ2

Translational Directional Bilinear -X2, +X2, -Y2, etc.

Rotational Directional Bilinear +RX2, -RX2, +RY2, etc.

Bottom Out Spring XSPR, YSPR, ZSPR

Directional Snubber +XSNB, -XSNB, +YSNB, etc.

Linear Restraint Non-linear restraint - Non-Linear Restraint restraint

- friction - Support (Translation Directional) +Y , +X , +Z, -Y - guide gap

CAESAR II non-linear equation run non-linear CAESAR II run non-linear equation guide gap support +Y Y (Translational Double Acting) - Linear Restraint restraint Y , friction , gap linear non-linear CAESAR II

support support +Y non-linear support linear restraint Y

1 pipe rack pipe rack restraint CAESAR II Restraint +Y run CAESAR II run Restraint Y support nozzle equipment

2

1 piping stress analysis

2 restraint node 60 non-linear restraint

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3 restraint support node 60 linear restraint

4 support node 60 non-linear restraint

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5 support node 60 linear restraint 4 5 support linear pipe support Lift Off 6 7 support type node 740

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6 node 740 Support +Y (Non-Linear Restraint)

6 support node 740 +Y 7

7 run result node 740 +Y (Non-Linear Restraint)

6

8 node 740 Support Y (Linear Restraint)

8 support node 740 support double acting Y 9

9 run result node 740 Y (Linear Restraint)

support 740 nozzle node number 3001 10 11

7

10 nozzle node 3001 support node 740 +Y

11 nozzle node 3001 support node 740 Y

10 11 support node 740 double acting nozzle load case 4(OPE) case 5(OPE) nozzle support

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3 Pipe Rack and Expansion Loop

By Piya Kittitanesuan Lead Piping Engineer

Pyry Energy (Thailand) Ltd. (Rev1 : update 19 February 2007)

Pipe Rack (structure)

(transport) process utility

1 Pipe Rack 3D Model Create by PDMS support restraining lines pipe

racks -

cooling - main cooling water supply and

return line service air , instrument air

-

-

(support)

pipe rack pipe rack pipe rack

1 support pipe rack optimize pressure drop

2 (Structure Engineer) pipe rack

Piping Stress Engineer Pipe Rack 3.1 Pipe rack design for process plants

piperack Flow diagram Plot plan Specification Project-design data

3.2 Pipe Rack (Line Location In The Pipe Rack) pipe rack

Process lines Utility lines plant air, instrument air,fuel oil, fuel gas, chemical

treating, boiler feed water

design CHANGE ELEVATION WHEN

CHANGING DIRECTION

Rack LINE pipe rack line

rack rack (utilities line) Instrument Air, Service Air, Service Water, Fire Water Line rack process

line utility piperack

2

Rack 2 Rack 3

3

Piping Designer Rack Piping

Stress Engineer pipe support Line Stop, Guide and Resting Support Piping Designer pipe stress Piping Designer

CAESAR II AUTOPIPE 3.3 restraint line pipe rack 1. (design temperature)

Line List, P&IDs 2.

( thermal expansion rate ) 300 . (existing plant) 200 mm.

3. line stop expansion loop 4. expansion loop (thermal

expansion)

a) (pipe clash)

4

b) Branch connection

5

c) Shoe

shoe (beam) shoe

6

d) pipe space

7

5. charts loop chart loop

6. line stops

expansion loop line stop balance friction force stop

expansion loop line stop

expansion loop line stop

8 line stop and guide expansion loop

3.4 How to Design Expansion Loop

Support

equipment , valve

Pipe rack

piping stress piping stress analysis stress analysis

(flexiblility)

1. expansion loop 2. expansion

joint spring support spring

expansion loop expansion joint What are important basic for design expansion loop ? expansion loop 4 1 (Pipe Crash)

(friction force) Pipe Rack

stopper anchor main column fixed point 10 kN CIVIL pipe rack 10 kN 1 ton

100 Pipe Rack Piping Stress Engineer Structural Engineer

9 line stop Structural Engineer 2 branch connection

X stopper

10

3. shoe (Shoe Length) support beam support beam contractor piping engineer piping stress analysis 11

1. Shoe Beam 50 mm. beam

2. (allow thermal movement) 250 mm. beam

3. beam stopper expansion loop flexibility

11 4. Pipe Space

existing plant thermal ovement pipe space 1 design expansion loop expansion loop (pressure drop) 6 50 . 10 70 . X = 150 mm.

12 X = 150 mm.

(150 .) expansion loop 13

13

150 . Line Stop 14 75 .

14

Loop 1 Loop 4 15

15

Loop 1 Loop 6 16

16 anchor point expansion loop 2 loop

Step 1 Loop Step 2 Line Stop Loop Step 3 Line Stop Line Stop Loop Line Stop 1 Step 4 Loop 4 Loop 10 17

17 anchor point expansion loop 4 loop

1. Loop 3 Loop (8 ) 2. ( Line Stop ) 3. Friction Loads

()

4 Pipe Support Design

(last update 20 March 2002) Stress analysis work is the Piping Engineer s role to solve thermal, dead weight and vibration problems in piping and equipment.

Key : 1. Thermal 2. Dead Weight 3. Vibration Now we are going to learn about how to solve the problem.

One thing important to understand for Piping Engineer is Pipe Support Design. Introduction to Pipe Support Design Definition 1) Anchors is a mechanical connection (welded and/or bolted) between a pipe (or Exchanger,etc.) and a structure.

Key : a structure or Pipe Support must be strong enough so that it cannot bend excessively under large forces. Example : Lets Trainee See TTCL Pipe Support Standards 2) Full Anchors will not allow the pipe to move or twist in any direction at the point it is anchored.

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3) Directional Anchors stops movement parallel to the center line of the pipe, but permits sideways pipe motion sideways motion is allowed 4) Guide stop sideways movement of a pipe , but allows movement parallel to the pipes centerline movement permitted 5) Rest Supports prevents downward motion of a pipe. If the weight of the pipe acting down on the support is great enouh, upward motion of the pipe may not be possible. Restraint Equipment Most equipment is anchored to a foundation. Therefore equipment nozzles are also anchors. Generally they are full anchors. The anchors are mechanically rigid but may have additional expansion when the equipment is hot. Even if the equipment. Is not bolted down, the weight may be great enough to make the equipment an anchor point.

2

I would say the greatest thing for you as in box below : Greatest Thing The free thermal expansion does not depend on the piping arrangement but depends only on the relative locations of the anchor points. I show you how it s come. Please see the example below. Example 1 Find the thermal expansion between the tower and the drum. pipe carbon steel A106 Gr.B at 200 C (coefficient of expansion = 2.2 mm/m.)

N 20 m. 1=44 mm. 2 = 33 mm. 15 m Anchor Point Answer In the E-W Direction the expansion to be absorbed is : 1 = L = 2.20 x 20 = 44 mm In the N-S Direction the expansion to be absorbed is : 2 = L = 2.20 x 15 = 33 mm

3

Example 2 Same as before , except change the anchor end of the drum.

N

20 m. 1= 22 mm. 2 = 33 mm. 15 m Anchor Point 10 m. Answer In the E-W Direction the expansion to be absorbed is : 1 = L = 2.20 x 10 = 22 mm In the N-S Direction the expansion to be absorbed is : 2 = L = 2.20 x 15 = 33 mm The N-S expansion of example1 have not been changed from the example 2. The E-W expansion was reduced considerably by just shifting the anchor end of the drum. Did you see the free thermal expansion does not dependon the piping arrangement.

4

Pipe Support Design Rest Support

5

5 SPRING HANGER DESIGN

By Piya Kittitanesuan Lead Piping Engineer

Pyry Energy (Thailand) Ltd. ( update 22 January 2007)

Spring 2

1. Variable Spring spring spring load vertical movement spring variable spring

1 variable spring support ( Pipe Supports Limited) 2. Constant Spring

Spring spring load vertical movement movement load constant spring

2 constant spring support ( Pipe Supports Limited)

1

spring constant variable spring variable spring

1. (installed) operating Cold Hot

2. cold hot rigid support

3. spring stress range stress engineer stress spring expansion stress allowable limit

(WHEN WE INSTALL A SPRING)

- spring Forces & Moment Nozzle spring nozzle equipment load limit equipment rotating equipment pump, steam turbine driven spring equipment

- spring settlement (Tank) (piling) (settlement) rigid support tank flexibility

VARIABLE and CONSTANT

- vertical movement 70 mm variable spring - vertical movement 70 mm constant spring variable spring

Spring

- rotating equipment pump pump spring pump spring pump

- reciprocating compressor rotating equipment

- pipe rack spring piping engineer spring pipe rack expansion loop spring pipe rack piping stress

2

know how

- vertical move 1 mm spring

spring load coil spring

Installed Load (Cold Load)

Cold Load = Hot Load + ( movement x spring rate ) a) spring movement up ( y=+10 mm. )

Cold Load =Hot Load + (movement x spring rate) b) spring movement down ( y = -10 mm. )

Cold Load =Hot Load - (movement x spring rate) Hot Load Operating load load operating Cold Load Installed load load installation Load Variation Load Variation = |Hot Load - Cold Load| = |spring rate x movement| Hot Load Hot Load spring load 25 Load variation 25 % stress Spring Table ( comet spring) 1 pipe supports ( comet )

Hot Load, movement load variation (load variation 25 %)

3

Step 1 maximum spring rate Max. spring rate = Variation x Hot Load Movement Step 2 hot load load column Step 3 size spring, series spring spring rate step 1 Step 4 cold load CL = HL + kx cold load working

range spring size Step 5 - cold load range spring size hot load = 5316 N travel cold hot = 37.3 mm up, load variation = 25 % Step 1 max. spring rate = (0.25 x 5316) /37.3 = 35.6 N/mm Step 2,3 hot load 5316 spring size V3-16 spring rate =18.2 N/mm. Step 4 cold load = 5316 + 18.2 x 37.3 = 5995 N. Step 5 cold load max over travel spring size

4

1. ( Pipe Support Ltd.)

5

size V3-17 spring rate = 22.6 N/mm ( spring ) Step 3 cold load = 5316 + 22.6 x 37.3 = 6158 N (OK load maximum) Check load variation = | 5316 6158| / 5316 = 0.158 or 15.8 % OK Spring Data Sheet spring data sheet vendor

data sheet ( ) 2 CAESAR II Static Output Report 1 Text MS Word 2 3

1

6

2

3 Spring Output Report CAESAR II 2 3

Movement X Z piping stress engineer support spring movement horizontal Displacement report 4 5

7

4

5

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PROJECT NO. 300760 SPRING NO. SH-001 Calc No. Calc008 Node No. (1100)

CLIENT : REQUISITION NO. :

LOCATION : CHONBURI ,THAILAND TOTAL QUANTITY REQ'D : 1

REF. P&ID No. : 2006-001-003 PREPARED : N.Pimnatchaya DATE : 3 July 06

SERVICE : High Pressure Steam CHECKED : K.Piya DATE : 4 July 06

ISO METRIC NO. : 2006-074-074 Rev.1

TYPE : CONSTANT ; VARIABLE ; GRAPHITE SUPPORT INSULATION ASME CODE YES

ANSI CODE YES

PROCESS DESIGN

NAME OF FLUID : HPS (High Pressure Steam)

OPERATING PRESSURE : 61

bar g

SPRING SUPPORT TYPE : ( SPRING SUPPORT No. V1-17 ) SUPPORT SERIAL :

By Vendor

PIPE NOMINAL SIZE : 200 mm

OPERATING TEMPERATURE : 528 oC

PIPE INSULATION THICKNESS : 170 mm

SUPPORT INSULATION THICKNESS : mm

PERCENTAGE LOAD CHANGE : ( 7 ) % % RECOMMENDED W/RANGE : 25 %

HYDROSTATIC TEST LOAD : ( 5282 ) N

OPERATING LOAD : ( 6088 ) N

PRE-SET LOAD : ( 5685 ) N

SPRING RATE : ( 904 ) N/cm

CONNECTIONS ( FILL BY VENDOR )

DESCRIPTION X Y Z A B C D E

OPERATING LOAD N 0 ( 6088 ) 0 ** ** ** ** **

MOVEMENT (+) mm

MOVEMENT (-) mm ( 4.152 ) ( 4.454 ) ( 37.18 )

REMARK

1 ** By Vendor

2. spring data sheet

9

1 7Seismic Analysis

By Piya K.Last Update 23 Sep 01

Seismic Analysis (Earthquake) Piping Engineer operate

Plant , seismic analysis shell Philliplines CAESAR II

CAESAR II seismic 2 seismic staticequivalent method piping engineer static equivalent method UBC Code ASME Code

( Analysis ) seismic occasional case CAESAR II case

static analysis equivalent static load case horizontal g force.

UBC code section 1632 Lateral Force on Elements ofStructures, Nonstructural Components and Equipment Supported by Structures (element) (structure) (nonstructural) (seismic forces) UBC Code Section 1632.2 attachment 181 kg furniture

nonstructural piping support Structure pipe rack code code

2 Earthquake Load Derivation on the Piping: Project Specification Requirement DATA : Design Code code UBC 1997 ( Project Spec)

Seismic Zone 1 ,2,3 or 4 Plant Importance Factor (UBC category 3), Ip 1.0 table 16-K

Maximum Design Lateral Seismic Force Fpmax= 4.0 Ca Ip Wp (32-3)Minimun total Design Lateral Seismic Force Fpmin = 0.7 Ca Ip Wp (32-3)

Fp (32-2)Total Design Lateral Seismic Force , Fp Fp = ap Ca Ip 1 + 3hx Wp (32-2)

Rp hr

ap = in-structure Component Amplification Factor that varies from 1.0 to 2.5. ( Table 16-O)Ca = seismic coefficient, as set forth in table 16-Qhr = the structure roof elevation with respect to grade.hx = the element or component attachment elevation with respect to grade. 0.0.Ip = importance factor specified in table 16-KRp = Component Response Modification Factor that shall be taken from Table 16-OWp = The weigth of an element or component

hx and hr apply piping

hr hx hx hx = hr hr

hr structural hx piping

seismic loading friction supports rest and guide (seismic forces) CAESAR II .. run analysis

Design Piping support

cantilever beam support cantilever beam line 2 branch header 10 case

support

support

sustain connection horiz

Piping Stress A

U1 (OCC)U2 (OCC)W + P1 + U1 (OW + P1 + U2 (O

case operating frictio ..

case heaontal

nalysis For model

CC)CC)

condition

n ,

Nozzle and3

expansion case branchder support pipe rack seismic forcesforce branch connection branch

Seismic Case by Using CAESAR II seismic effects load case

save file name case design condition seismic model CAESAR II piping input model ( ) model piping input CAESAR II sheet

restraint loads

B31.1 Code Compliance

4 Piping Engineer1. Piping Engineer sustain case

(primary) expansion case (secondary) seismic (occasional)

2. Piping Engineer piping loads Civil Engineer Structural (seismic loads)

3. Piping Engineer design support

STRESS-C Version 2.5 By Piya K (8 Feb 2006)

Aim : to convert PDMS file to CAESAR II model CAESAR II work smart work hard Run program stressc.exe folder C:\AVEVA\STRESSC2.5

step Project Name = AMA Username/Pass =PPMANA/PPMANB Enter MDB Base Name = AMAPROJ Enter Pipe Name = 23LCA12BR010 Enter CAESAR input STRESS-C generate neutral file *.cii *.dat

STRESS-C convert ? Folder convert file C:\AVEVA\STRESSC2.5\

PDMS model line number 23LBA15BR010 convert CAESAR II

convert STRESS-C CAESAR II convert

valve CAESAR

1LONGITUDINAL PRESSURE STRESSHOOP PRESSURE STRESS Power Plant Code B31.1 Process Plant Code B31.3 Process Plant Code B31.3 Code stress allowable THE SUSTAIN ALLOWABLE STRESS hot yield stress factor sustained stresses materials elastic limit operating design THE EXPANSION ALLOWABLE STRESS RANGE yield stress safety factor , cyclic reduction factor mean stress total stress range ( expansion sustained) set yield stressTHE OCCASIONAL STRESS stress (seismic ) wind load, water hammer 7 Allowable stress ASME Code Sh 10 30 % 1.1Sh 1.33Sh code B31.1 1.15Sh -1.2 Sh B31.3 1.3 Sh B31.1 Power Piping safety factor B31.3 Process Piping

content-27Feb08.pdfFirst PagePyry Energy LtdTable of Content 2 Static Analysis x 5 Spring Hanger Design x 6 Jacket Pipe x- Minimum leg require for jacket pipe 7 Dynamic x 8 Seismic Analysis x- Seismic code

Chapter 2 Static update 23 Jan 2007.pdf 2

chapter 3 Pipe Racks Rev 1(19 Feb 07).pdf 3Pipe Rack and Expansion LoopPyry Energy (Thailand) Ltd.

3.1 Pipe rack design for process plants3.2 Pipe Rack (Line Location In The P

Chapter 4 Introduction to Pipe Support.pdfStress analysis work is the Piping Engineer s role to solveNow we are going to learn about how to solve the problem. OnIntroduction to Pipe Support DesignDefinition1) Anchors is a mechanical connection (welded and/or bolted) between a pipe (or Exchanger,etc.) and a structure.

pipe carbon steel A106 Gr.B at 200 (C (coefficient of expansion = 2.2 mm/m.)N20 m. (1=44 mm.Answer

N20 m. (1= 22 mm.Answer

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Chapter 1 basic piping stress 29 Feb 08.pdf2B 10BULONGITUDINAL PRESSURE STRESS1BUHOOP PRESSURE STRESS3B Power Plant Code B31.1 Process Plant Code B31.3 4B Process Plant Power Plant Code B31.1 B31.3 code B31.3 Code stress allowable 5BUTHE SUSTAIN ALLOWABLE STRESS 6B hot yield stress factor sustained stresses materials elastic limit operating design 7BUTHE EXPANSION ALLOWABLE STRESS RANGEU 8B yield stress safety factor , cyclic reduction factor mean stress total stress range ( expansion sustained) set yield stress9BUTHE OCCASIONAL STRESSU stress (seismic ) wind load, water hammer 7 10B Allowable stress ASME Code Sh 10 30 % 1.1Sh 1.33Sh code B31.1 1.15Sh -1.2 Sh B31.3 1.3 Sh B31.1 Power Piping safety factor B31.3 Process Piping


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Piping Stress Hand Book 4 Mar 08