Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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A gasoline-powered engine runs in an Otto cycle with a compression ratio of CR = 10: 1. The intake air is at 100 kPa = 1 bar, 20 °C, and the chamber volume is 500 cm³ before the compression stroke. The temperature at the end of an adiabatic expansion is T4 = 950 K. Specific heat capacity at a constant air pressure at atmospheric pressure and room temperature: cp = 1.01 kJ/kgK. Specific heat capacity at constant air volume at atmospheric pressure and room temperature: cv = 0.718 kJ/kgK. K = cp/cv = 1.4 ● ● Calculate: a. Temperature and pressure at the end of each process b. The thermal efficiency [n] of this engine cycle. C. The mean effective pressure
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Transcribed Image Text:A gasoline-powered engine runs in an Otto cycle with a compression ratio of CR = 10: 1. The intake air is at 100 kPa = 1 bar, 20 °C, and the chamber volume is 500 cm³ before the compression stroke. The temperature at the end of an adiabatic expansion is T4 = 950 K. Specific heat capacity at a constant air pressure at atmospheric pressure and room temperature: cp = 1.01 kJ/kgK. Specific heat capacity at constant air volume at atmospheric pressure and room temperature: cv = 0.718 kJ/kgK. K = cp/cv = 1.4 ● ● Calculate: a. Temperature and pressure at the end of each process b. The thermal efficiency [n] of this engine cycle. C. The mean effective pressure
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