Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 10 (Q.No. 28)
28.
A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when
Discussion:
2 comments Page 1 of 1.
Pawan Kumar Sharma said:
2 years ago
Thermal conductivity is inversely proportional to temperature difference.
Here temperature difference across plate A is greater so the thermal conductivity of A is less than B.
So, only option C is correct.
Here temperature difference across plate A is greater so the thermal conductivity of A is less than B.
So, only option C is correct.
Philip said:
8 years ago
Why the options are in '<' or '>'? s
Should it be in '=' to make it more understandable?
Should it be in '=' to make it more understandable?
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