PV Elite 2014 Licensee: SPLM Licensed User 1
FileName : Asso 12 KL
Internal Pressure Calculations : Step: 3 8:20a Mar 29,2019
Element Thickness, Pressure, Diameter and Allowable Stress :
| | Int. Press | Nominal | Total Corr| Element | Allowable |
From| To | + Liq. Hd | Thickness | Allowance | Diameter | Stress(SE)|
| | kgf/cm² | mm | mm | mm | kgf/cm² |
---------------------------------------------------------------------------
10| 20| 8.0000 | ... | ... | 2260.0 | 1378.6 |
20| 30| 8.0000 | ... | ... | 2260.0 | 1378.6 |
30| 40| 8.0000 | ... | ... | 2260.0 | 1378.6 |
Element Required Thickness and MAWP :
| | Design | M.A.W.P. | M.A.P. | Minimum | Required |
From| To | Pressure | Corroded | New & Cold | Thickness | Thickness |
| | kgf/cm² | kgf/cm² | kgf/cm² | mm | mm |
----------------------------------------------------------------------------
10| 20| 8.00000 | 9.49639 | 9.68614 | 12.0000 | 10.1080 |
20| 30| 8.00000 | 12.1355 | 12.3780 | 10.0000 | 6.58032 |
30| 40| 8.00000 | 8.00158 | 8.16146 | 10.1100 | 10.1080 |
Minimum 8.002 8.161
MAWP: 8.002 kgf/cm², limited by: Torispherical Head.
Internal Pressure Calculation Results :
ASME Code, Section VIII, Division 1, 2013
Torispherical Head From 10 To 20 SA-240 316 at 180 °C
Material UNS Number: S31600
Inside Corroded Head Depth [h]:
= L - sqrt( ( L - Di / 2) * ( L + Di / 2 - 2 * r ) )
= 2260.00-sqrt((2260.00-2260.00/2)*(2260.00+2260.00/2-2*226.00))
PV Elite 2014 Licensee: SPLM Licensed User 2
FileName : Asso 12 KL
Internal Pressure Calculations : Step: 3 8:20a Mar 29,2019
= 437.930 mm
M factor for Torispherical Head:
= (3+sqrt((L+C)/(r+C)))/4 per Appendix 1-4 (b & d)
= (3+sqrt((2260.000 + 0.0000 )/(226.000 + 0.0000 )))/4
= 1.5406
Required Thickness due to Internal Pressure [tr]:
= (P*L*M)/(2*S*E-0.2*P) per Appendix 1-4 (d)
= (8.000*2260.0000*1.5406)/(2*1378.59*1.00-0.2*8.000)
= 10.1080 + 0.0000 = 10.1080 mm
Max. Allowable Working Pressure at given Thickness, corroded [MAWP]:
= (2*S*E*t)/(M*L+0.2*t) per Appendix 1-4 (d)
= (2*1378.59*1.00*12.0000)/(1.5406*2260.0000+0.2*12.0000)
= 9.496 kgf/cm²
Maximum Allowable Pressure, New and Cold [MAPNC]:
= (2*S*E*t)/(M*L+0.2*t) per Appendix 1-4 (d)
= (2*1406.14*1.00*12.0000)/(1.5406*2260.0000+0.2*12.0000)
= 9.686 kgf/cm²
Actual stress at given pressure and thickness, corroded [Sact]:
= (P*(M*L+0.2*t))/(2*E*t)
= (8.000*(1.5406*2260.0000+0.2*12.0000))/(2*1.00*12.0000)
= 1161.362 kgf/cm²
Straight Flange Required Thickness:
= (P*R)/(S*E-0.6*P) + c per UG-27 (c)(1)
= (8.000*1130.0000)/(1378.59*1.00-0.6*8.000)+0.000
= 6.580 mm
Straight Flange Maximum Allowable Working Pressure:
= (S*E*t)/(R+0.6*t) per UG-27 (c)(1)
= (1378.59 * 1.00 * 12.0000 )/(1130.0000 + 0.6 * 12.0000 )
PV Elite 2014 Licensee: SPLM Licensed User 3
FileName : Asso 12 KL
Internal Pressure Calculations : Step: 3 8:20a Mar 29,2019
= 14.547 kgf/cm²
Percent Elongation per UHA-44 (75*tnom/Rf)*(1-Rf/Ro) 3.879 %
Note: Please Check Requirements of Table UHA-44 for Elongation limits.
SA-240 316, Min Metal Temp without impact per UHA-51: -196 °C
Cylindrical Shell From 20 To 30 SA-240 316 at 180 °C
Material UNS Number: S31600
Required Thickness due to Internal Pressure [tr]:
= (P*R)/(S*E-0.6*P) per UG-27 (c)(1)
= (8.000*1130.0000)/(1378.59*1.00-0.6*8.000)
= 6.5803 + 0.0000 = 6.5803 mm
Max. Allowable Working Pressure at given Thickness, corroded [MAWP]:
= (S*E*t)/(R+0.6*t) per UG-27 (c)(1)
= (1378.59*1.00*10.0000)/(1130.0000+0.6*10.0000)
= 12.136 kgf/cm²
Maximum Allowable Pressure, New and Cold [MAPNC]:
= (S*E*t)/(R+0.6*t) per UG-27 (c)(1)
= (1406.14*1.00*10.0000)/(1130.0000+0.6*10.0000)
= 12.378 kgf/cm²
Actual stress at given pressure and thickness, corroded [Sact]:
= (P*(R+0.6*t))/(E*t)
= (8.000*(1130.0000+0.6*10.0000))/(1.00*10.0000)
= 908.800 kgf/cm²
Percent Elongation per UHA-44 (50*tnom/Rf)*(1-Rf/Ro) 0.441 %
Note: Please Check Requirements of Table UHA-44 for Elongation limits.
SA-240 316, Min Metal Temp without impact per UHA-51: -196 °C
PV Elite 2014 Licensee: SPLM Licensed User 4
FileName : Asso 12 KL
Internal Pressure Calculations : Step: 3 8:20a Mar 29,2019
Torispherical Head From 30 To 40 SA-240 316 at 180 °C
Material UNS Number: S31600
Inside Corroded Head Depth [h]:
= L - sqrt( ( L - Di / 2) * ( L + Di / 2 - 2 * r ) )
= 2260.00-sqrt((2260.00-2260.00/2)*(2260.00+2260.00/2-2*226.00))
= 437.930 mm
M factor for Torispherical Head:
= (3+sqrt((L+C)/(r+C)))/4 per Appendix 1-4 (b & d)
= (3+sqrt((2260.000 + 0.0000 )/(226.000 + 0.0000 )))/4
= 1.5406
Required Thickness due to Internal Pressure [tr]:
= (P*L*M)/(2*S*E-0.2*P) per Appendix 1-4 (d)
= (8.000*2260.0000*1.5406)/(2*1378.59*1.00-0.2*8.000)
= 10.1080 + 0.0000 = 10.1080 mm
Max. Allowable Working Pressure at given Thickness, corroded [MAWP]:
= (2*S*E*t)/(M*L+0.2*t) per Appendix 1-4 (d)
= (2*1378.59*1.00*10.1100)/(1.5406*2260.0000+0.2*10.1100)
= 8.002 kgf/cm²
Maximum Allowable Pressure, New and Cold [MAPNC]:
= (2*S*E*t)/(M*L+0.2*t) per Appendix 1-4 (d)
= (2*1406.14*1.00*10.1100)/(1.5406*2260.0000+0.2*10.1100)
= 8.161 kgf/cm²
Actual stress at given pressure and thickness, corroded [Sact]:
= (P*(M*L+0.2*t))/(2*E*t)
= (8.000*(1.5406*2260.0000+0.2*10.1100))/(2*1.00*10.1100)
= 1378.322 kgf/cm²
PV Elite 2014 Licensee: SPLM Licensed User 5
FileName : Asso 12 KL
Internal Pressure Calculations : Step: 3 8:20a Mar 29,2019
Straight Flange Required Thickness:
= (P*R)/(S*E-0.6*P) + c per UG-27 (c)(1)
= (8.000*1130.0000)/(1378.59*1.00-0.6*8.000)+0.000
= 6.580 mm
Straight Flange Maximum Allowable Working Pressure:
= (S*E*t)/(R+0.6*t) per UG-27 (c)(1)
= (1378.59 * 1.00 * 10.1100 )/(1130.0000 + 0.6 * 10.1100 )
= 12.268 kgf/cm²
Percent Elongation per UHA-44 (75*tnom/Rf)*(1-Rf/Ro) 3.282 %
Note: Please Check Requirements of Table UHA-44 for Elongation limits.
SA-240 316, Min Metal Temp without impact per UHA-51: -196 °C
Hydrostatic Test Pressure Results:
Pressure per UG99b = 1.3 * M.A.W.P. * Sa/S 10.610 kgf/cm²
Pressure per UG99b[34] = 1.3 * Design Pres * Sa/S 9.323 kgf/cm²
Pressure per UG99c = 1.3 * M.A.P. - Head(Hyd) 10.384 kgf/cm²
Pressure per UG100 = 1.1 * M.A.W.P. * Sa/S 8.978 kgf/cm²
Pressure per PED = 1.43 * MAWP 11.442 kgf/cm²
UG-99(b), Test Pressure Calculation:
= Test Factor * MAWP * Stress Ratio
= 1.3 * 8.002 * 1.020
= 10.610 kgf/cm²
Horizontal Test performed per: UG-99b
Please note that Nozzle, Shell, Head, Flange, etc MAWPs are all considered
when determining the hydrotest pressure for those test types that are based
on the MAWP of the vessel.
Stresses on Elements due to Test Pressure:
PV Elite 2014 Licensee: SPLM Licensed User 6
FileName : Asso 12 KL
Internal Pressure Calculations : Step: 3 8:20a Mar 29,2019
From To Stress Allowable Ratio Pressure
----------------------------------------------------------------------
10 20 1573.0 1828.0 0.861 10.84
20 30 1230.9 1828.0 0.673 10.84
30 40 1866.9 1828.0 1.021 10.84
----------------------------------------------------------------------
The Maximum Allowable test pressure is 10.384 kgf/cm²
One or more Elements Failed Code Requirements for Internal Pressure !
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