Calculate the power required by the motor

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Reference no: EM13946575

The power needed to overcome wind and friction drag associated with an automobile traveling at a constant velocity of 25 m/s is 9 kW.

(a) Determine the required heat transfer area of the radiator if the vehicle is equipped with an internal combustion engine operating at an efficiency of 21%. (Assume 79% of the energy generated by the engine is in the form of waste heat removed by the radiator.) The inlet and outlet mean temper- atures of the water with respect to the radiator are and the air in the evaporator and condenser sections are the same, 3 X 10-3 K/W, determine the temp- erature required by the refrigerant in each section. Calculate the power required by the motor.

Reference no: EM13946575

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