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A torque of 200 ft-lb is developed by a diesel engine when running at 1200 rpm and using 20lbs of fuel per hour. The heating value of the fuel is 19,000 BTU/lb. The engine is of 4-stroke cycle and has 4 cylinders. The bore equals to stroke. The engine takes in 25lbs of air per lb of fuel. The volumetric efficiency is 80%, T=60°C. Calculate the brake thermal efficiency and the bore in inches. Assume that it is operated at standard condition.

A torque of 200 ft-lb is developed by a diesel engine when running at 1200 rpm and using 20lbs of fuel per hour. The heating value of the fuel is 19,000 BTU/lb. The engine is of 4-stroke cycle and has 4 cylinders. The bore equals to stroke. The engine takes in 25lbs of air per lb of fuel. The volumetric efficiency is 80%, T=60°C. Calculate the brake thermal efficiency and the bore in inches. Assume that it is operated at standard condition.

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
Problem 1.1MA
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A torque of 200 ft-lb is developed by a diesel engine when running at 1200 rpm and using 20lbs of fuel per hour. The heating value of the fuel is 19,000 BTU/lb. The engine is of 4-stroke cycle and has 4 cylinders. The bore equals to stroke. The engine takes in 25lbs of air per lb of fuel. The volumetric efficiency is 80%, T-60°C. Calculate the brake thermal efficiency and the bore in inches. Assume that it is operated at standard condition.
Transcribed Image Text:A torque of 200 ft-lb is developed by a diesel engine when running at 1200 rpm and using 20lbs of fuel per hour. The heating value of the fuel is 19,000 BTU/lb. The engine is of 4-stroke cycle and has 4 cylinders. The bore equals to stroke. The engine takes in 25lbs of air per lb of fuel. The volumetric efficiency is 80%, T-60°C. Calculate the brake thermal efficiency and the bore in inches. Assume that it is operated at standard condition.
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