An Otto cycle has a compression ratio of CR= 12:1. The intake air is at 100.024 kPa, 25°C, and the volume of the chamber is 500cm' prior to the compression stroke. Thetemperature at the end of adiabaticexpansion is T4 = 810 K.%3DNote: cp = 1.01 kJ/kg.K; c, = 0.718 kJ/kg.K;k = 1.4 and R = 287 J/kg.K%3DCalculate the following:1. the mass of intake air2. the temperature T33. the pressure p34. the amount of heat added by burning offuel-air mixture5. the thermal efficiency of this cycle6. the MEP

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An Otto cycle has a compression ratio of CR = 12:1. The intake air is at 100.024 kPa, 25 °C, and the volume of the chamber is 500

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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Question

An Otto cycle has a compression ratio of CR
= 12:1. The intake air is at 100.024 kPa, 25
°C, and the volume of the chamber is 500
cm' prior to the compression stroke. The
temperature at the end of adiabatic
expansion is T4 = 810 K.
%3D
Note: cp = 1.01 kJ/kg.K; c, = 0.718 kJ/kg.K;
k = 1.4 and R = 287 J/kg.K
%3D
Calculate the following:
1. the mass of intake air
2. the temperature T3
3. the pressure p3
4. the amount of heat added by burning of
fuel-air mixture
5. the thermal efficiency of this cycle
6. the MEP

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