When a three cylinder, four stroke cycle, SI engine operating at 4000 rpm is connected to an eddy current dynamometer, 70.4 kW of power is dissipated by the dynamometer. The engine has a total displacement volume of 2.4 liters and a mechanical efficiency of 82% at 4000rpm. Because of heat and mechanical losses, the dynamometer has an efficiency of 93%. Dynamo = (power recorded by the dynamo) / (actual break power from engine) Calculate (show your solution). a. Power lost to friction in engine b. Break mean effective pressure c. Engine torque at 4000rpm d. Engine specific volume
When a three cylinder, four stroke cycle, SI engine operating at 4000 rpm is connected to an eddy current dynamometer, 70.4 kW of power is dissipated by the dynamometer. The engine has a total displacement volume of 2.4 liters and a mechanical efficiency of 82% at 4000rpm. Because of heat and mechanical losses, the dynamometer has an efficiency of 93%. Dynamo = (power recorded by the dynamo) / (actual break power from engine) Calculate (show your solution). a. Power lost to friction in engine b. Break mean effective pressure c. Engine torque at 4000rpm d. Engine specific volume
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Transcribed Image Text:When a three cylinder, four stroke cycle, SI engine operating at 4000 rpm is connected to an
eddy current dynamometer, 70.4 kW of power is dissipated by the dynamometer. The
engine has a total displacement volume of 2.4 liters and a mechanical efficiency of 82% at
4000rpm. Because of heat and mechanical losses, the dynamometer has an efficiency of
93%. Dynamo = (power recorded by the dynamo) / (actual break power from engine)
Calculate (show your solution).
b.
a. Power lost to friction in engine
Break mean effective pressure
c. Engine torque at 4000rpm
d. Engine specific volume
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