A cross-flow heat exchanger with both fluids unmixed has an overall heat transfer coefficient of 200 W/m2·K, and a heat transfer surface area of 400 m2. The hot fluid has a heat capacity of 40,000 W/K, while the cold fluid has a heat capacity of 80,000 W/K. If the inlet temperatures of both hot and cold fluids are 80°C and 20°C, respectively, determine (a) the exit temperature of the hot fluid and (b) the rate of heat transfer in the heat exchanger.
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
A cross-flow heat exchanger with both fluids unmixed
has an overall heat transfer coefficient of 200 W/m2·K, and
a heat transfer surface area of 400 m2. The hot fluid has a heat
capacity of 40,000 W/K, while the cold fluid has a heat capacity
of 80,000 W/K. If the inlet temperatures of both hot and cold
fluids are 80°C and 20°C, respectively, determine (a) the exit temperature
of the hot fluid and (b) the rate of heat transfer in the heat
exchanger.
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