Consider a shell-and-tube water-to-water heat exchanger with identical mass flow rates for both the hot- and cold-water streams. Now the mass flow rate of the cold water is reduced by half. Will the effectiveness of this heat exchanger increase, decrease, or remain the same as a result of this modification? Explain. Assume the overall heat transfer coefficient and the inlet temperatures remain the same.
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.
Consider a shell-and-tube water-to-water heat exchanger
with identical mass flow rates for both the hot- and cold-water
streams. Now the mass flow rate of the cold water is reduced
by half. Will the effectiveness of this heat exchanger increase,
decrease, or remain the same as a result of this modification?
Explain. Assume the overall heat transfer coefficient and the
inlet temperatures remain the same.
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