An automobile engine consumes fuel at a rate of 22 L/h and delivers 55 kW of power to the wheels. If the fuel has a heating value of 44,000 kJ/kg and a density of 0.8 g/cm3 , determine the efficiency of this engine. Hint, Qa= mass of fuel * heating value.

An automobile engine consumes fuel at a rate of 22 L/h and delivers 55 kW of power to the wheels. If the fuel has a heating value of 44,000 kJ/kg and a density of 0.8 g/cm3 , determine the efficiency of this engine. Hint, Qa= mass of fuel * heating value.

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

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 26RQ: How many Btu of heat can be produced by 4 kWh ofelectricity?

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Question

An automobile engine consumes fuel at a rate of 22 L/h and delivers 55 kW of power to the
wheels. If the fuel has a heating value of 44,000 kJ/kg and a density of 0.8 g/cm3
, determine
the efficiency of this engine. Hint, Qa= mass of fuel * heating value.

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