Card 2 / 35: A countercurrent heat exchanger operates with the following temperatures: cold fluid inlet 15°C, cold fluid outlet 25°C, hot fluid inlet 90°C, and hot fluid outlet 30°C. Calculate the logarithmic-mean temperature difference in °C.
A)
45°C
B)
30°C
C)
27°C
D)
25°C
E)
50°C
Answer:
C) 27°C
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