Hot water at 60°C is cooled to 36°C through the tube side of a one-shell pass and two-tube passes heat exchanger. The coolant is also a water stream, for which the inlet and outlet temperatures are 7°C and 31°C, respectively. The overall heat transfer coefficient and the heat transfer area are 950 W/m2·K and 15 m2, respectively. Calculate the mass flow rates of hot and cold water streams in steady operation.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Hot water at 60°C is cooled to 36°C through
the tube side of a one-shell pass and two-tube passes heat
exchanger. The coolant is also a water stream, for which
the inlet and outlet temperatures are 7°C and 31°C, respectively.
The overall heat transfer coefficient and the heat transfer
area are 950 W/m2·K and 15 m2, respectively. Calculate
the mass flow rates of hot and cold water streams in steady
operation.

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