The following readings were taken during the test of four-stroke single cylinder petrol engine: Load on brake

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The following readings were taken during the test of four-stroke single cylinder petrol engine:

Load on brake drum $=50 \mathrm{~kg}$;

Diameter of brake drum $=1,250 \mathrm{~mm}$

Spring balance reading $=7 \mathrm{~kg}$;

Engine speed $=450 \mathrm{rpm}$

Fuel consumption $=4 \mathrm{~kg} / \mathrm{hr}$; Calorific value of fuel $=43,000 \mathrm{~kJ} / \mathrm{kg}$
Calculate: (i) indicated thermal efficiency, and (ii) brake thermal efficiency. Assume mechanical efficiency as $70 \%$.

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Basic Mechanical Engineering

ISBN: 9789386873293

2nd Edition

Authors: PRAVIN KUMAR

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Question Posted: Apr 09, 2024 02:15 AM

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The following readings were taken during the test of four-stroke single cylinder petrol engine: Load on brake

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Engine Efficiency Calculations We can calculate the brake thermal efficiency b and indicated thermal efficiency i of the fourstroke singlecylinder pet...View the full answer

Basic Mechanical Engineering

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