Insulation Calculations:Input sheet - V.Ganapathy


Note:This program estimates the casing temperature for a single layer refractory or insulation based on ambient conditions and thickness.Since linear interpolation is used for intermediate "K" values,data close to casing and hot face temperatures may result in more accurate results.
For multiple layer refractory/insulation calculations,visit the author's web page on Books,software for steam plant engineers.

Input hot face temperature-F
Input ambient temperature-F
Input wind velocity-fpm
Input casing material
(-1 for aluminium & 2 for carbon steel)
Input insulation thickness-in
Input temperature1-F
Input thermal cond1-Btu.in/ft2hF
Input temperature2-F
Input thermal cond2-Btu.in/ft2hF

Note: If thermal conductivity values are not known at two different temperatures,use the following for estimation purposes only: mineral fiber,deltaboard:0.35 at 200,0.45 at 400 F castable block mix:0.57 at 200,0.72 at 600 F kaowool:1.2 at 1500,0.53 at 800 F
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