What would be the ideal power produced in Example 6.1 if the engines total displacement was 8000.

Question:

What would be the ideal power produced in Example 6.1 if the engine’s total displacement was 8000. cm3 and it was running at 3000. RPM?


Example 6.1

A new four-cylinder Otto cycle engine has a total displacement of 5000. cm3 and a compression ratio of 9.00. Its fuel has a heating value of 45,500 kJ/kg and it has a mass air-to-fuel ratio of 15.0. During a test, the actual power delivered by the engine was 65. kW at 4000. RPM. The air density at the engine was 1.10 kg/m3. Determine (1) the engine’s Otto cycle efficiency, (2) the engine’s ideal power, and (3) its mechanical efficiency.

Need: (1) ηOtto, (2) ideal power produced, and (3) ηMech for this engine.

Know–How: Equations (6.1), (6.2), and (6.3) give the desired results.

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Related Book For  book-img-for-question

Exploring Engineering An Introduction to Engineering and Design

ISBN: 978-0123747235

2nd edition

Authors: Philip Kosky, George Wise, Robert Balmer, William Keat

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