The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe )
A. $$\frac{{\text{K}}}{{{{\text{h}}_0}}}$$
B. $$\frac{{2{\text{K}}}}{{{{\text{h}}_0}}}$$
C. $$\frac{{{{\text{h}}_{\text{i}}}}}{{\text{K}}}$$
D. $$\frac{{2{{\text{h}}_{\text{i}}}}}{{\text{K}}}$$
Answer: Option A
This Question Belongs to Chemical Engineering >> Heat Transfer
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