Heat exchangers remove unwanted heat. Heat generated from motors, residual heat in the reactor, steam systems, or air co

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Heat exchangers remove unwanted heat. Heat generated frommotors, residual heat in the reactor, steam systems, or airconditioners must be removed to protect the equipment or component.This heat is transferred through heat exchangers to a coolingmedium such as seawater. Understanding the First Law ofthermodynamics is necessary to design heat exchangers, as well asfor operators to predict system changes when the heat load ischanged or the temperature of the cooling medium changes.