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A 3L, 4-cylinder gasoline engine produces 150 kW at 4,500 rpm when the operating standard condition are 1 bar and 30 0C. The compression ratio of the engine is 9, the heating value of the fuel is 44,400 kJ/kg and the mechanical efficiency is 73%. The engine is brought to an Industrial Plant 3,500 ft above sea level which presented a volumetric efficiency of 70 % at 10.3 kgair/kgfuel. At this condition, find: a) brake power, kW b) brake engine efficiency, % c) PmB, kPa d) Mechanical Efficiency, %

A 3L, 4-cylinder gasoline engine produces 150 kW at 4,500 rpm when the operating standard condition are 1 bar and 30 0C. The compression ratio of the engine is 9, the heating value of the fuel is 44,400 kJ/kg and the mechanical efficiency is 73%. The engine is brought to an Industrial Plant 3,500 ft above sea level which presented a volumetric efficiency of 70 % at 10.3 kgair/kgfuel. At this condition, find: a) brake power, kW b) brake engine efficiency, % c) PmB, kPa d) Mechanical Efficiency, %

Elements Of Electromagnetics
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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A 3L, 4-cylinder gasoline engine produces 150 kW at 4,500 rpm when the operating standard condition are 1 bar and 30 0C. The compression ratio of the engine is 9, the heating value of the fuel is 44,400 kJ/kg and the mechanical efficiency is 73%. The engine is brought to an Industrial Plant 3,500 ft above sea level which presented a volumetric efficiency of 70 % at 10.3 kgair/kgfuel. At this condition, find:

a) brake power, kW

b) brake engine efficiency, %

c) PmB, kPa

d) Mechanical Efficiency, %

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