engineering recuitment NMDC Junior Officer (Trainee) Mock Test 2024 Heat Transfer Heat Exchanger Heat Exchanger Analysis
A hot fluid enters the counter flow heat exchanger at 120°C and leaves at 80°C. A cold fluid enters the heat exchanger at 60 °C. The mean temperature difference between the two fluids is (Assume the values of fluid flow rates and specific heats in such a manner that the heat capacities of the two fluids are equal).
1
15°C
2
35°C
3
40°C
4
20°C