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1. |
A cross flow type air heater has an area of 50 cm2. The overall heat transfer coefficient is 100 W/m2 K and heat capacity of both hot and cold stream is 1000 W/m K. The value of NTU is |
A. | 1000 |
B. | 500 |
C. | 5 |
D. | 0.2 |
Answer» C. 5 | |