An eight-cylinder, four-stroke engine of 9 cm bore and 8 cm stroke with a compression ratio of 7 is tested at 4500 rev/min on a dynamometer which has 54 cm arm. During a 10 minutes test the dynamometer scale beam reading was 42 kg and the engine consumed 4.4 kg of gasoline having a calorific value of 44000 kJ/kg. Air at 27°C and 1 bar was supplied to the carburettor at the rate of 6 kg/min. Take R for air = 287 kJ/(kg·K). Find: (1) the brake power delivered (bp), (2) the brake mean effective pressure (bmep), the brake specific fuel consumption (bsfc), (3) Draw the simplified schematic diagram of the plant showing all the necessary data dis- played on it.

An eight-cylinder, four-stroke engine of 9 cm bore and 8 cm stroke with a compression ratio of 7 is tested at 4500 rev/min on a dynamometer which has 54 cm arm. During a 10 minutes test the dynamometer scale beam reading was 42 kg and the engine consumed 4.4 kg of gasoline having a calorific value of 44000 kJ/kg. Air at 27°C and 1 bar was supplied to the carburettor at the rate of 6 kg/min. Take R for air = 287 kJ/(kg·K). Find: (1) the brake power delivered (bp), (2) the brake mean effective pressure (bmep), the brake specific fuel consumption (bsfc), (3) Draw the simplified schematic diagram of the plant showing all the necessary data dis- played on it.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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