Calculation of Trunnion (KELLOGG's Method) Input Data
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9952T 8"-P-510-0148-B5A-N 510-CN-1119/2010
Project N° : Line N° : NC/Node :
Material Header
Sh : Allowable Stress at Hot Temperature (Mpa) :
137,9
Outside Diameter (mm) :
219,08
Sc : Allowable Stress at Room Temperature (Mpa):
137,9
Thickness of pipe (mm) :
8,1788
Corrosion Allowance (mm) :
1,5
Thickness of pad (mm) :
0
Mi Mill Tolerance ( % ) :
1 2 ,5
Trunnion
Design Conditions
Outside Diameter (mm) :
168,28
Design Temperature(°C):
Thickness of pipe (mm) :
7,112
Design Pressure (Kg/cm2g):
Effective length
(mm) :
615
Upset Pressure Test Pressure
(Kg/cm2g):
80 22,5 0
(Kg/cm2g):
33,75
FC
FL
FA
Weight + Pressure
96
282
6402
Weight + Design Pressure+ Thermal ( Operating )
109
1511
5036
Weight + Upset Pressure + Thermal ( Upset )
0
0
0
Weight + Design Pressure + Impact ( Occasional )
0
0
0
124
309
7340
Loading in N FA
Case
FC FL
Weight + Test Pressure (Test condition)
STRESSES RESULTS HEADER STRESSES (Mpa) Long Longit itud udin inal al
Case W+P
TRUNNION STRESSES (Mpa)
Circ Circum umfe fere rent ntia iall
Case
Equivalent Stress
N/A
Passed
W+P
Passed
W+P+T (Ope)
Passed
Passed
W+P+T (Ope)
Passed
W+P+T (Upset)
Passed
N/A
W+P+Impact Load
Passed
N/A
N/A
Passed
W+P (Test)
W+P+T (Upset) W+P+Impact Load(Occ) W +P (Test)
HEADER STRESSES (Mpa) Case W+P
Longitud itudiinal nal
N/A
N/A Passed
TRUNNION STRESSES (Mpa)
Circ Circum umffer1 Circ Circum umffer2
N/A
N/A
7 1 ,4
Allowable 137,9
Case
Equivalent Stress
W+P
1,49
W+P+T (Ope)
7 2 ,8 3
59,32
N/A
206,9
W+P+T (Ope)
7,59
W+P+T (Upset)
2 1 ,7 9
N/A
N/A
206,9
W+P+T (Upset)
0,00
W+P+Impact Load
2 1 ,7 9
N/A
N/A
183,4
W+P+Impact Load(Occ)
0,00
N/A
N/A
9 6 ,9
137,9
W+P (Test)
1,67
W+P (Test)
Trunnion Trunnion Check_Node 710
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CALCULATION SHEET FOR TRUNNIONS
Project N° :
9952T
Line N° : NC/Node :
8"-P-510-0148-B5A-N
510-CN-1119/2010
80
Design Temperature (°C) Design pressure (barg ) Upset pressure ( Barg ) ( if required ) Test pressure ( Barg )
22,5 0 33,75
== Upset pressure in Barg
22,5
Material 137,9 137,9 1,5 12,5
Allowable Stress at Metal Temp (Mpa) Allowable Stress at Room Temp (Mpa) Corrosion allowance ( mm ) Mill tolerance ( % )
Header 219,075 8,1788
Outside diameter (mm) Thickness of pipe+pad (mm)
== Thickness included (mm)
5,65645
Trunnion 168,275 7,112 615
Outside diameter ( mm ) Thickness ( mm ) Effective lenght ( mm )
== Thickness included ( mm )
Loads in N Circumferential loading
Longitudinal
Radial
loading
Loading
96
282
6402
109
1511
5036
0
0
0
0
0
0
124
309
7340
Weight + Design Pressure Weight+Design Pressure+Thermal (Normal) Weight+Upset Pressure+Thermal (Upset) Weight+Design Pressure+Impact Load (Occasional) Weight +Test Pressure ( Test condition )
Trunnion Check_Node 710
6,223
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STRESS CALCULATION Header stresses ( Weight+Pressure ) Circumferential Moment Mc ( Nmm ) 173430,00 Longitudinal Moment Ml ( Nmm ) 6402,00 Radial Load ( N ) 59040,00
fc Circumferential force ( N/mm ) fl Longitudinal force ( N/mm ) 12,11 fa Axial force ( N/mm ) 2,65 7,80
Condition fl/fc 2 If 0.5=< fl/fc =< 3 then apply condition 2 Else apply condition 1
2,94
Condition 1 N/A N/A N/A N/A
N/A N/A N/A
N/A
f1 Longitudinal Bending ( N/mm ) f2 Circumferential Bending ( N/mm ) Sext Longitudinal Bending Stress ( Mpa ) Spl Longitudinal Pressure Stress ( Mpa) Ssum = Sext + Spl ( Mpa )
< SH =
137,90 Mpa
Sext Circumferential Bending Stress ( Mpa ) Spc Circumferential Pressure Stress ( Mpa ) Ssum = Sext + Spc ( Mpa )
< SH =
137,90 Mpa
< SH =
137,90 Mpa
Condition 2 30,52
f2 Circumferential Bending ( N/mm )
27,78
Sext Circumferential Bending Stress ( Mpa ) Spc Circumferential Pressure Stress ( Mpa ) Ssum = Sext + Spc ( Mpa )
43,57
71,35
Trunnion Check_Node 710
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Header stresses ( Th+W+P ) Normal Circumferential Moment Mc ( Nmm ) 929265,00 Longitudinal Moment Ml ( Nmm ) 5036,00 Radial Load ( N ) 67035,00
fc ( N/mm) fl ( N/mm) 9,53 fa ( N/mm ) 3,01
41,78
Condition fl/fc 1 If 0.5=< fl/fc =< 3 then apply condition 2 Else apply condition 1
13,86
Condition 1 f1 Longitudinal Bending ( N/mm ) 17,30 f2 Circumferential Bending ( N/mm ) 56,07
Sext Longitudinal Bending Stress ( Mpa ) 21,79 Spl Longitudinal Pressure Stress ( Mpa) 72,83 Ssum = Sext + Spl ( Mpa )
206,85 Mpa
Sext Circumferential Bending Stress ( Mpa ) 43,57 Spc Circumferential Pressure Stress ( Mpa ) 59,32 Ssum = Sext + Spc ( Mpa )
206,85 Mpa
206,85 Mpa
51,04
15,75
Condition 2 N/A
f2 Circumferential Bending ( N/mm )
N/A
Sext Circumferential Bending Stress ( Mpa ) Spc Circumferential Pressure Stress ( Mpa ) Ssum = Sext + Spc ( Mpa )
N/A
N/A
Trunnion Check_Node 710
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Header stresses ( Th+W+P ) Upset Circumferential Moment Mc ( Nmm ) 0,00 Longitudinal Moment Ml ( Nmm ) 0,00 Radial Load ( N ) 0,00
fc ( N/mm) fl ( N/mm) 0,00 fa ( N/mm ) 0,00 0,00
Condition fl/fc 1 If 0.5=< fl/fc =< 3 then apply condition 2 Else apply condition 1
10,00
Condition 1 f1 Longitudinal Bending ( N/mm ) 0,00 f2 Circumferential Bending ( N/mm ) 0,00
Sext Longitudinal Bending Stress ( Mpa ) 21,79 Spl Longitudinal Pressure Stress ( Mpa) 21,79 Ssum = Sext + Spl ( Mpa ) 0,00
N/A N/A
N/A
Sext Circumferential Bending Stress ( Mpa ) Spc Circumferential Pressure Stress ( Mpa ) Ssum = Sext + Spc ( Mpa )
206,85 Mpa
206,85 Mpa
206,85 Mpa
Condition 2 N/A
f2 Circumferential Bending ( N/mm )
N/A
Sext Circumferential Bending Stress ( Mpa ) Spc Circumferential Pressure Stress ( Mpa ) Ssum = Sext + Spc ( Mpa )
N/A
N/A
Trunnion Check_Node 710
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Header stresses ( Weight+Pressure+Impact Load ) Circumferential Moment Mc ( Nmm ) 0,00 Longitudinal Moment Ml ( Nmm ) 0,00 Radial Load ( N ) 0,00
fc Circumferential force ( N/mm ) 0,00 fl Longitudinal force ( N/mm ) 0,00 fa Axial force ( N/mm ) 0,00
Condition fl/fc 1 If 0.5=< fl/fc =< 3 then apply condition 2 Else apply condition 1
10,00
Condition 1 0,00 0,00 0,00 21,79
21,79 0,00 N/A
N/A
f1 Longitudinal Bending ( N/mm ) f2 Circumferential Bending ( N/mm ) Sext Longitudinal Bending Stress ( Mpa ) Spl Longitudinal Pressure Stress ( Mpa) Ssum = Sext + Spl ( Mpa )
< SH =
183,41 Mpa
Sext Circumferential Bending Stress ( Mpa ) Spc Circumferential Pressure Stress ( Mpa ) Ssum = Sext + Spc ( Mpa )
< SH =
183,41 Mpa
< SH =
183,41 Mpa
Condition 2 N/A
f2 Circumferential Bending ( N/mm )
N/A
Sext Circumferential Bending Stress ( Mpa ) Spc Circumferential Pressure Stress ( Mpa ) Ssum = Sext + Spc ( Mpa )
N/A
N/A
Trunnion Check_Node 710
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Header stresses ( Test condition ) Circumferential Moment Mc ( Nmm ) 190035,00 Longitudinal Moment Ml ( Nmm ) 7340,00 Radial Load ( N ) 76260,00
fc ( N/mm) fl ( N/mm) 13,88 fa ( N/mm ) 3,43 8,54
Condition fl/fc 2 If 0.5=< fl/fc =< 3 then apply condition 2 Else apply condition 1
2,49
Condition 1 f1 Longitudinal Bending ( N/mm ) f2 Circumferential Bending ( N/mm )
N/A N/A N/A N/A
N/A N/A N/A
N/A
Sext Longitudinal Bending Stress ( Mpa ) Spl Longitudinal Pressure Stress ( Mpa) Ssum = Sext + Spl ( Mpa )
137,90 Mpa
Sext Circumferential Bending Stress ( Mpa ) Spc Circumferential Pressure Stress ( Mpa ) Ssum = Sext + Spc ( Mpa )
137,90 Mpa
137,90 Mpa
Condition 2 34,64
f2 Circumferential Bending ( N/mm )
Sext Circumferential Bending Stress ( Mpa ) 65,36 Spc Circumferential Pressure Stress ( Mpa ) 96,89 Ssum = Sext + Spc ( Mpa ) 31,53
Trunnion Check_Node 710
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Trunnion Stresses Trunnion stresses ( Weight + pressure) 183203,95
Bending moment ( Nmm )
I ( mm4 ) 3168,14 Section ( mm2)
10415085,42
Bending Stress ( Mpa ) 0,09 Shear Stress ( Mpa ) 1,48
1,49 Equivalent Stress (Mpa)
137,90 Mpa
206,85 Mpa
206,85 Mpa
Trunnion stresses ( W+Th+P ) Normal 931679,74
Bending moment ( Nmm )
Bending Stress ( Mpa ) 0,48 Shear Stress ( Mpa ) 7,53
7,59 Equivalent Stress (Mpa)
Trunnion stresses ( W+Th+P ) Upset 0,00
Bending moment ( Nmm )
Bending Stress ( Mpa ) 0,00 Shear Stress ( Mpa ) 0,00
0,00 Equivalent Stress (Mpa)
Trunnion stresses ( Weight + pressure+Impact Load) 0,00
Bending moment ( Nmm )
I ( mm4 ) 3168,14 Section ( mm2)
10415085,42
Bending Stress ( Mpa ) 0,00 Shear Stress ( Mpa ) 0,00
0,00 Equivalent Stress (Mpa)
183,41 Mpa
< SC =
137,90 Mpa
Trunnion stresses ( Test condition ) 204765,45 1,65 0,11
Bending moment ( Nmm ) Bending Stress ( Mpa ) Shear Stress ( Mpa )
1,67 Equivalent Stress (Mpa)
Trunnion Check_Node 710
