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 coefficient for air will vary in the ratio of
(A) 2
(B) 2
0.8
(C) 2
0.2
(D) 2
0.5
rate and other conditions remaining the same, the film heat transfer coefficient for air will vary in the ratio of
(A) 2
(B) 2
0.8
(C) 2
0.2
(D) 2
0.5