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In which collector does air flow without any obstruction?

(a) Porous absorber plate

(b) Non-porous absorber plate

(c) Over lapped glass absorber

(d) Finned absorber

This question was addressed to me in class test.

I want to ask this question from Flat Plate Collectors in portion Solar Energy of Energy Engineering

1 Answer

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Best answer
Correct option is (b) Non-porous absorber plate

To elaborate: In a simple flat plate air collector, commonly known as non-porous absorbers, the air stream flow through the absorber plate without any obstruction. An analysis of black painted solar air collectors in conventional design in which the air flows below the absorber plate has been made.

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