During a test on a diesel engine used for driving a dc generator, the following observations were made. The engine torque is 1290 N-m running at 360 rpm. The quantity of fuel supplied to the engine was 10.8 kg/h, the calorific value of fuel being 44 MJ/kg. The air used/kg fuel is 19 kg. The exhaust gases were passed through an exhaust gas calorimeter for which the observations were as follows: Water circulated through the calorimeter = 150 gal/h, temperature rise of water is 30°C, temperature of the exhaust gases at exit from the calorimeter = 87°C, specific heat of exhaust gases = 1.04 kJ/kg-K, ambient temperature = 30°C. If the heat lost to the jacket cooling water was 94% of the brake power of the engine, draw up an energy balance sheet of the engine.
During a test on a diesel engine used for driving a dc generator, the following observations were made. The engine torque is 1290 N-m running at 360 rpm. The quantity of fuel supplied to the engine was 10.8 kg/h, the calorific value of fuel being 44 MJ/kg. The air used/kg fuel is 19 kg. The exhaust gases were passed through an exhaust gas calorimeter for which the observations were as follows: Water circulated through the calorimeter = 150 gal/h, temperature rise of water is 30°C, temperature of the exhaust gases at exit from the calorimeter = 87°C, specific heat of exhaust gases = 1.04 kJ/kg-K, ambient temperature = 30°C. If the heat lost to the jacket cooling water was 94% of the brake power of the engine, draw up an energy balance sheet of the engine.
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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During a test on a diesel engine used for driving a dc generator, the following observations were made.
The engine torque is 1290 N-m running at 360 rpm. The quantity of fuel supplied to the engine was 10.8 kg/h, the calorific value of fuel being 44 MJ/kg. The air used/kg fuel is 19 kg. The exhaust gases were passed through an exhaust gas calorimeter for which the observations were as follows:
Water circulated through the calorimeter = 150 gal/h, temperature rise of water is 30°C, temperature of the exhaust gases at exit from the calorimeter = 87°C, specific heat of exhaust gases = 1.04 kJ/kg-K, ambient temperature = 30°C. If the heat lost to the jacket cooling water was 94% of the brake power of the engine, draw up an energy balance sheet of the engine.
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