AST Heating Coil Design Calculation Rev 0

DESIGN CALCULATION HEATING COIL

Manuf. Manuf. serial serial No. : Equipment

: 601001 6010014141-060 0600 0 : He Heating Coil

Client Requisition no Client Ref. No. Client Doc. No.

: : : Calamity Tank T123

Design Code Design Pressure

: AS ASME B31.3 : 16 Barg

Design Temperature

:

+5 / +260 °C

Content Design Data Design Calculation & Hydrotest Pressure

Issued & Calculated by ACE Services Calc.No. Revision Date Da te

: : : :

PG ACE 11042 0 3-11 3-11-2 -201 011 1

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Tank Heating Coil 2" for Tank T123

Design Code

ASME Process Piping Code B31.3

Pipe system Drawing(s)

Fabrication no. 60100141-0600 02431-F-025

PS 10 Barg

Pipe diameter & schedule Design pressure

2 inch Sch. N/A

PED 97/23/CE fluids classification & state Inspection category according to PED

LP STEAM Gaseous Table 7

TS 184°C

DN PS PS x DN

50 mm 16 Barg 800

Group

2

Category

SEP

Minimum Module according to PED

Module

SEP

Chosen Module for design & fabrication

Module

SEP

Material pipe

Wall Thickness Calculation Pipe

X6CrNiMoTi 17 12 2 ( 1.4571)

SS

316Ti

according ASME B31.3

Desi n Presure

P=

1.6 MPa

Design Temperature

T=

260 [°C]

Outside pipe diameter

D0 =

60.3 60.3 [mm] [mm]

Nominal Nominal wall thickness thickness

t=

2 [mm]

CA =

0 [mm]

tol =

0.25 [mm]

Corrosion Allowance Wall thickness Tolerance

Pipe

12.50%

Joint efficiency factor B31.3 -1999 Table A-1B

E=

0.85 [-]

Wall Thichness Factor B31.3 -1999 Table 304.1.1

Y=

0.4 [[-]

Total Length of Coil Loop

50 [m]

Heating Heating Surface Surface

9.5 [m²]

Volume Volume

127 [dm [dm³] ³]

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CALCULATION REQUIRED WALL THICKNESS HEATING COIL Allo Allowa wabl ble e Yiel Yield d stre stress ss at Ro Room om temp temper erat atur ure e Yield stress at Design temperature Corroded thickness in under tolerance Required wall thickness (3a)

Nominal required wall thickn Max. Allowable Working Press.

tr =

Sy = ST =

t - CA - tol =

2 - 0 - 0.25 =

P x D0

1.6 x 60.3

2 x (ST x E + P x Y )

tm = tr - CA - tol = MAWP =

2 x tc x S x E D- 2 x t x Y

2x( 102 x 0.85 +1.6x 0.4)

1.75 [mm] =

0.56 0.56 [mm] [mm]

0.56 + 0 + 0.25 = =

2 x 1.75 x 102 x 0.85 60.3 - 2 x 1.75x0.4

0.81 [mm] 5.15 [MPa]

= =

Thickness analysis

t > tm

t=

2 mm is

142 142 [N/m [N/mm² m²]] 102 102 [N/m [N/mm² m²]]

51.52 [Barg]

OK

TEST PRESSURE PRESSURE CALCULATION ( 345.4.2 b) HYDROTEST Internal Desig Gage Pressure

P=

1.6 [MPa]

Design Temperature

T=

260 [°C]

Allowable Stress at Design Temperature

ST =

102 102 [N/m [N/mm² m²]]

Hydrotest Temperature

=

Allow llowab able le Stres tress s at Test Test Temp Temper erat atur ure e Hydrotest Pressure

Sy =

PT = 1.5 1.5 x P x Sy Sy / ST =

Hydrotest Pressure Gage

Maximum Allowable Working Pressure for Pipe Thickness

1.5 x 1.6 x 142 / 102

20 [°C] 142 142 [N/m [N/mm² m²]]

PT =

3.34 [MPa]

PT =

33.4 33.4 [Bar [Barg] g]

MAWP =

51.5 51.52 2 [Bar [Barg] g]

Hydrotest Pressure is OK

Calculated by ACE Services bv / Pieter Grendel

3-11-2011

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