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1) In a constant pressure engine the compressi ratio is € and at the start of the polytropic compression the air pressure is A kPa and t temperature is B degrees. The maximum temnerature of the loon is D Kelvin and the

1) In a constant pressure engine the compressi ratio is € and at the start of the polytropic compression the air pressure is A kPa and t temperature is B degrees. The maximum temnerature of the loon is D Kelvin and the

Elements Of Electromagnetics
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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1) In a constant pressure engine the compression ratio is € and at the start of the polytropic compression the air pressure is A kPa and the temperature is B degrees. The maximum temperature of the loop is D Kelvin and the expansion takes place polytropically. (m=1 kg and the combustion chamber volume is Vc m3. Calculate the heat entering and leaving the cycle and the thermal efficiency in line with the data. DATA: (A=95 B=30 €=22 D=2200 n=1,3 k=1,4 m=1 cp=1,005 R=0,287 cv=0,718 Vc=0,1001) 2) Calculate the air-fuel ratio in the combustion process of fuel A, which is exposed to combustion with B% excess air. Data:( B=0,20 A=Natural gas)
Transcribed Image Text:1) In a constant pressure engine the compression ratio is € and at the start of the polytropic compression the air pressure is A kPa and the temperature is B degrees. The maximum temperature of the loop is D Kelvin and the expansion takes place polytropically. (m=1 kg and the combustion chamber volume is Vc m3. Calculate the heat entering and leaving the cycle and the thermal efficiency in line with the data. DATA: (A=95 B=30 €=22 D=2200 n=1,3 k=1,4 m=1 cp=1,005 R=0,287 cv=0,718 Vc=0,1001) 2) Calculate the air-fuel ratio in the combustion process of fuel A, which is exposed to combustion with B% excess air. Data:( B=0,20 A=Natural gas)
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