Pressure Vessel Engineering Ltd.

ASME Calculations - CRN Assistance - Vessel Design - Finite Element Analysis

Design Conditions
Code: ASME B31.3 ASME B31.3 Piping Calculations
Year: 2012 Cust: Pressure Vessel Engineering
Addenda: - File: PVEclc-6950-2.0
MAWP: 200 psi Desc: Cooling Water Piping
MEAWP: 0 psi Dwg: PVEpid-6950-1.0
Max. Temp.: 120 F Date: October 17, 2013
MDMT: 32 F
MDMT Press.: 200 psi

Corrosion Allowance: 0.0625 in

Hydrotest: 301 psi
Impact Testing: None
Impact Exemption: 323.2.2
Radiography: 5%

301 Loads Considered

(301.2) Design Pressure: Yes
(301.3) Design Temperature: Yes
(301.4) Ambient Effects: No
(301.5) Dynamic Effects: No
(301.6) Weight Effects: No
(301.7) Thermal Expansion Effects: No
(301.8) Support Effects: No
(301.9) Reduced Ductility Effects: No
(301.10) Cyclic Effects: No
(301.11) Air Condensation Effects: No

Author: Cameron Moore

Reviewer: Laurence Brundrett, P. Eng.

Conclusion: The cooling water piping has been

calculated to ASME B31.3. and is found to be
acceptable for the given pressure and temperature
ratings.

www.pveng.com Pressure Vessel Engineering Ltd.

info@pveng.com 120 Randall Drive, Suite B
Phone 519-880-9808 Waterloo, Ontario, Canada, N2V 1C6
Table of Contents 17-Oct-13 Page 2 of 6

Description Page Description Page

Cover 1 8 inch Pipe 4
Table of Contents 2 8 inch Elbow 5
Material Properties 3 Cl 150 Flange 6

Author Reviewer
Drawing: CBM JLL
Calculation Method: CBM JLL
Calculation Results: CBM JLL
Revision(s)
Rev Description Date By
0 Release 17-Oct-13 CBM
1 Material Properties ver 4.09 Page 3 of 6
2

3 Cooling Water Piping <- Description

4

5 Design Pressure:
6 200.0 <- P, internal operating pressure at top of vessel (psig)
7 0.0 <- mPa, external operation pressure
8 Water <- Operating Fluid
9 3 <- h, fluid height (ft)
10 1.000 <- rho, fluid density (1.0 for water)
11 Static Head = 0.4331*rho*h = 0.4331 * 1 * 3 sH = 1.3
12 Design Pressure = P + sH = 200 + 1.3 mDp = 201.3
13

14 Hydro Test (ASME B31.3-2008 - 345.4.2)

15 Test Pressure = 1.5 * mDp * MR - sH = 1.5 * 201.3 * 1 - 1.3 mTp = 301
16

17 Material Properties (ASME B31.3 Table A-1)

18 120 <- mTemp, design temp F Test at ambient temp
Material Where Used Ambient Design Strength Max F Ext
19 Strength Strength Ratio Graph
20 CS Spec A-106 Gr-B pipes & tubes Pipe 20000 20000 1.000 1100
21 CS Spec A-105 forgings Flanges & O-lets 23300 23170 1.006 1100
22 CS Spec A-234 Gr-WPB forgings Elbows 20000 20000 1.000 1100
45 Min Ratio (MR) = 1.000
46

47 Per ASME B16.9, Reducers are calculated as equivalent straight seamless pipe
48

49
1 B31.3-Pipe ver 6.01 Page 4 of 6
2 8 inch Pipe Description

3 Dimensions:
4 8.625 D [in] - outside diameter
5 0.322 tnom [in] - nominal thickness
6 0.000 h [in] - thread allowance B1.20.2
7 12.500% UT [%] - undertolerance allowance
8 0.063 Ca [in] - corrosion allowance
9 0.000 Ma [in] - mechanical allowance
10 Material and Conditions:
11 FerriticSteel Group - material group
12 120 Temp [F] - design temperature
13 Spec A-106 Gr-B Material
14 Table211 Table - applicable material group in B16.5
15 20,000 S [psi] - allowable stress level
16 1.00 E - longitudinal efficiency (circ. stress)
17 1.00 W - weld joint reduction factor
18 201.3 P [psi] - design pressure
19

20 Variables:
21 ci [in] = Ma+Ca 0+0.063 = 0.0625
22 co [in] = h 0= 0.0000
23 c [in] = ci+co 0.0625+0 = 0.0625
24 T [in] = tnom*(1-UT) 0.322*(1-0.125) = 0.2818
25 d [in] = D-2*T 8.625-2*0.2818 = 8.0615
26 Y1 = From Table 304.1.1 = 0.40
27 Y2 = (d+2*c)/(D+d+2*c) (8.0615+2*0.0625)/(8.625+8.0615+2*0.0625) = 0.4870
28 Interior Pressure: B31.3-304.1.2
29 t1 [in] = P*D/(2*(S*E*W+P*Y1)) 201.3*8.625/(2*(20000*1*1+201.3*0.4)) = 0.0432
30 t2 [in] = P*D/(2*(S*E*W+P*Y2)) 201.3*8.625/(2*(20000*1*1+201.3*0.487)) = 0.0432
31 t [in] = if(t1>=D/6,t2,t1) IF(0.0432>=8.625/6,0.0432,0.0432) = 0.0432
32 tm [in] = t+c 0.0432+0.0625 = 0.1057
33 CheckT = T >= tm 0.2818 >= 0.1057 = Acceptable
1 B31.3-Pipe ver 6.01 Page 5 of 6
2 8 inch Elbow Description

3 Dimensions:
4 8.625 D [in] - outside diameter
5 0.322 tnom [in] - nominal thickness
6 0.000 h [in] - thread allowance B1.20.2
7 12.500% UT [%] - undertolerance allowance
8 0.063 Ca [in] - corrosion allowance
9 0.000 Ma [in] - mechanical allowance
10 Material and Conditions:
11 FerriticSteel Group - material group
12 120 Temp [F] - design temperature
13 Spec A-234 Gr-WPB Material
14 Table221 Table - applicable material group in B16.5
15 20,000 S [psi] - allowable stress level
16 1.00 E - longitudinal efficiency (circ. stress)
17 1.00 W - weld joint reduction factor
18 201.3 P [psi] - design pressure
19

20 Variables:
21 ci [in] = Ma+Ca 0+0.063 = 0.0625
22 co [in] = h 0= 0.0000
23 c [in] = ci+co 0.0625+0 = 0.0625
24 T [in] = tnom*(1-UT) 0.322*(1-0.125) = 0.2818
25 d [in] = D-2*T 8.625-2*0.2818 = 8.0615
26 Y1 = From Table 304.1.1 = 0.40
27 Y2 = (d+2*c)/(D+d+2*c) (8.0615+2*0.0625)/(8.625+8.0615+2*0.0625) = 0.4870
28 Interior Pressure: B31.3-304.1.2
29 t1 [in] = P*D/(2*(S*E*W+P*Y1)) 201.3*8.625/(2*(20000*1*1+201.3*0.4)) = 0.0432
30 t2 [in] = P*D/(2*(S*E*W+P*Y2)) 201.3*8.625/(2*(20000*1*1+201.3*0.487)) = 0.0432
31 t [in] = if(t1>=D/6,t2,t1) IF(0.0432>=8.625/6,0.0432,0.0432) = 0.0432
32 tm [in] = t+c 0.0432+0.0625 = 0.1057
33 CheckT = T >= tm 0.2818 >= 0.1057 = Acceptable
1 B16.5 Flange Rating ver 6.00 Page 6 of 6
2 Cl 150 Flange Description
3 Flange Inputs:
4 SA 105 Material
5 150 Class - pressure class
6 201.3 P [psi] - design pressure
7 120 Temp [F] - design temperature
8 Geometry Constraints and Data:
9 Comp = Vlookup(Material,FlangeMatChart,3)~~composition C-Si
10 Table = Vlookup(Material,FlangeMatChart,2)~~pressure table Table211
11 TM [F] = Vlookup(Material,FlangeMatChart,5)~~max temperature 1000
12 ckTemp = TM>=Temp 1000>=120 = Acceptable
13 Pressure Rating:
14 Pclass [psi] = PVELookup(Table,"Int1Dlin",Class,Temp)~~rated pressure 280
15 ckP = Pclass>=P 280>=201.3 = Acceptable