Piping Insulation Thickness Calculation: To Prevent Condensation
Air Condition:
DB/ ºC Dew Point
RH/ % DP/ ºC 35.07
38
85
Pipe specification:
Pipe dia.
1.25
Radius, r1 15.879 mm
7
Pipe surface temperature / ºC
Insulation material:
Material: ARMAFLEX
Thermal conductivity, k 0.0374W/mK
Surface convective heat transfer 9 W/m
2
K
Coefficient, h
Insulation selection:
Calculated insulation size
r2 41.440mm
Insulation thickness 25.6 mm
(Minimum) 1.0 in
USE THE NEXT SIZE THICKNESS
AVAILABLE OR THICKER – FOR SAFETY FACTOR
Section 7 Page 102
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