23–78C Consider a shell-and-tube water-to-water heat ex- changer 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....

Extracted text: 23–78C Consider a shell-and-tube water-to-water heat ex- changer 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 modi- fication? Explain. Assume the overall heat transfer coefficient and the inlet temperatures remain the same.