Question

A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of

a.

2

b.

2^0.8

c.

2^0.2

d.

2^0.5

Answer: (b).2^0.8

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Q. A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in...

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