What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m2.°K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively.
A. 2
B. 5
C. 10
D. 20
Answer: Option A
This Question Belongs to Chemical Engineering >> Chemical Engineering Basics
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