Pipe Insulation THK Calculation

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Insulation Thickness calculation of pipe INPUT Output INPUT REQUIRED 30 303.15 40 313.15 120 393.15 80 2 k Thermal Conductivity of insulation at Mean Temp in W/m 0.038 L Length of pipe in mm 50000 D Actual OD of Pipe in mm 114.3 mm 90 For Horizontal Pipe use below formul h 9.8 For Vertical Pipe use below formula Surface ε A B Aluminum, Bright Rolled 0.05 0.25 0.27 Aluminum, Oxidized 0.13 0.31 0.33 Steel 0.15 0.32 0.34 Galvanised Sheet Metal, Dusty Pipe Surface 0.44 0.53 0.55 Non Metalic Surfaces 0.95 0.85 0.87 For Carbon Steel Pipe Consider "A" 0.53 0 C 0 K Ta Ambient Temperature in 0 C Ts Actual/Desire Insulation Surface Temperature Required Th Bare Pipe Wall Temperature in 0 C Tm Mean Temperature in 0 C (Th + Ts) Refer Ca of Insu Mater ΔT Temp. difference between Bare pipe & Ambient (Th-Ta) in Calculate Surface Heat Transfer Coefficient in W/m 2 -C IF Δ T is less than 150 0 C use below formula W/m 2 -C Refer Below Table for value of A & B
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    02-Dec-2014
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Transcript of Pipe Insulation THK Calculation

INU1 Cutput0C0k1a30 303131s40 313131h120 39313(1h + 1s)2k 0038L 30000D 1143 mm1 90h 98W/m2C

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