During a test on a 5-cylinder four-stroke IC dieselengine with a cylinder bore and stroke length of 240mm and 297 mm respectively, running at 468 r/min,the following results were obtained:Mass on Dynamometer mass hanger (arm length =0.825 m)205 kgIndicated mean effective pressure528 kPaFuel consumption (with Qnet,v = 39.8 MJ/kg,%3Ddensity = 0.944 kg/l)6 ml/sTake acceleration due to gravity as 9.81 m persquare secondsCalculate the brake thermal efficiency_ _in decimalform to 3decimal places.

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Answered: Calculate the brake thermal efficiency

Engineering

Mechanical Engineering

Calculate the brake thermal efficiency

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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Concept explainers

Clutches, Brakes, Couplings, and Flywheels

The clutch is described as a machine element used to connect or disconnect two shafts together to transmit torque or power. The clutch works on the principles of friction. The clutch is commonly used in automobiles to transfer power from the driving shaft to the driven shaft.

Question

During a test on a 5-cylinder four-stroke IC diesel
engine with a cylinder bore and stroke length of 240
mm and 297 mm respectively, running at 468 r/min,
the following results were obtained:
Mass on Dynamometer mass hanger (arm length =
0.825 m)
205 kg
Indicated mean effective pressure
528 kPa
Fuel consumption (with Qnet,v = 39.8 MJ/kg,
%3D
density = 0.944 kg/l)
6 ml/s
Take acceleration due to gravity as 9.81 m per
square seconds
Calculate the brake thermal efficiency_ _in decimal
form to 3decimal places.

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