A gasoline-powered engine runs in an Otto cycle with a compression ratio of CR = 9 : 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 = 800 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. κ = cp/cv = 1.4 Find: 1. The thermal efficiency [ηth] of this engine cycle. The mean effective pressure, Temperature and pressure at the end of each process
A gasoline-powered engine runs in an Otto cycle with a compression ratio of CR = 9 : 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 = 800 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. κ = cp/cv = 1.4 Find: 1. The thermal efficiency [ηth] of this engine cycle. The mean effective pressure, Temperature and pressure at the end of each process
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 gasoline-powered engine runs in an Otto cycle with a compression ratio of CR = 9 : 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 = 800 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. κ = cp/cv = 1.4 Find:
1. The thermal efficiency [ηth] of this engine cycle. The mean effective pressure, Temperature and pressure at the end of each process
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