If average heat transfer co-efficient is $${{\text{h}}_{\text{a}}}$$ and the local coefficient at the end of the plate is $${{\text{h}}_l}$$ then in case of heat transfer to a fluid flowing over a flat plate, heated over its entire length
A. $${{\text{h}}_{\text{a}}} = {{\text{h}}_l}$$
B. $${{\text{h}}_{\text{a}}} = 2{{\text{h}}_l}$$
C. $${{\text{h}}_{\text{a}}} = 0.5{{\text{h}}_l}$$
D. $${{\text{h}}_{\text{a}}} = 0.75{{\text{h}}_l}$$
Answer: Option B
This Question Belongs to Chemical Engineering >> Heat Transfer
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