Q3 An oil engine takes in air at (1.01 bar), (20 °C) and the maximum cycle pressure is (69 bar). The compression ratio is (18:1). Calculate the air standard efficiency and mean effective pressure based on the Dual combustion cycle. Assume that heat added at constant volume is equal to the heat added at constant pressure. Take [Cp 1.005 Kj/Kg.K, C= 0.718 Kj/Kg.K and y =1.4]. Answers: [(68.24 %), (2.2579 bar)]

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q3 An oil engine takes in air at (1.01 bar), (20 °C) and the maximum cycle pressure
is (69 bar). The compression ratio is (18:1). Calculate the air standard efficiency and
mean effective pressure based on the Dual combustion cycle. Assume that heat
added at constant volume is equal to the heat added at constant pressure. Take
[Cp 1.005 Kj/Kg.K, C= 0.718 Kj/Kg.K and y =1.4]. Answers: [(68.24 %), (2.2579 bar)]
Transcribed Image Text:Q3 An oil engine takes in air at (1.01 bar), (20 °C) and the maximum cycle pressure is (69 bar). The compression ratio is (18:1). Calculate the air standard efficiency and mean effective pressure based on the Dual combustion cycle. Assume that heat added at constant volume is equal to the heat added at constant pressure. Take [Cp 1.005 Kj/Kg.K, C= 0.718 Kj/Kg.K and y =1.4]. Answers: [(68.24 %), (2.2579 bar)]
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