3. An automobile engine delivers 25hp to the driveshaft with the thermal efficiency of 30%. The fuel has a heat content of 40 000kJ/kg. Calculate the rate of fuel consumption (kg/hr) and the heat rejected (kW) through the radiator and exhaust.

3. An automobile engine delivers 25hp to the driveshaft with the thermal efficiency of 30%. The fuel has a heat content of 40 000kJ/kg. Calculate the rate of fuel consumption (kg/hr) and the heat rejected (kW) through the radiator and exhaust.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter35: Comfort And Psychrometrics

Section: Chapter Questions

Problem 12RQ: A gas furnace has an output of 60,000 Btu/h. The return air temperature is 72F, and the temperature...

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Question

3. An automobile engine delivers 25hp to the driveshaft with the thermal efficiency of 30%. The
fuel has a heat content of 40 000kJ/kg. Calculate the rate of fuel consumption (kg/hr) and the
heat rejected (kW) through the radiator and exhaust.

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