Answered: Indicated mean effective pressure in…

Name: A four cylinder 2.5liter SI automobile engine operate3s at WOT on a fo
Uploaded: 2024-03-20T06:56:55.000Z
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Description: A four cylinder 2.5liter SI automobile engine operate3s at WOT on a four-stroke air standard Otto cycle at 3000rpm. The engine has a compression ratio of 8.6:1, a mechanical efficiency of 86% and a stroke-to-bore ratio S/B = 1.025. Fuel is isooctane

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 four cylinder 2.5liter SI automobile engine operate3s at WOT on a four-stroke air standard Otto cycle at 3000rpm. The engine has a compression ratio of 8.6:1, a mechanical efficiency of 86% and a stroke-to-bore ratio S/B = 1.025. Fuel is isooctane with AF=15, a heating valve of 44,300kJ/kg and a combustion efficiency ƞ_c=100%. At the start of the compression stroke, conditions of the cylinder combustion chamber are 100kPa and 60°C. It can be assumed that there is a 4% exhaust residual left over from the previous cycle. Calculate the:

(a) Indicated mean effective pressure in kPa, (b) Indicated power in kW & Hp, (c) Piston speed at m/sec

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