The engine oil at 150 degree Celsius is cooled to 80 degree Celsius in a paralle

Question

The engine oil at 150 degree Celsius is cooled to 80 degree Celsius in a parallel flow heat exchanger by water entering at 25 degree Celsius and leaving at 60 degree Celsius. Estimate the number of transfer units

Options:

A . 1.221

B . 2.221

C . 3.221

D . 4.221

Answer: Option A
Answer: (a).1.221

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