An engine working on Otto cycle has a volume of 0.5 m2, pressure 1 bar and temperature 27°C at the commencement of compression stroke. At the end of compression stroke, the pressure is 10 bar. Heat added during the constant volume process is 200 kJ. Determine : (ii) Air standard efficiency (i) Percentage clearance liii) Mean effective pressure (iv) Ideal power developed by the engine if the engine runs at 400 r.p.m. so that there are 200 complete cycles per minutes. [Ans. (i) 23.76% ; (i) 47.2% ; (iii) 2.37 bar (iv) 321 kW]
An engine working on Otto cycle has a volume of 0.5 m2, pressure 1 bar and temperature 27°C at the commencement of compression stroke. At the end of compression stroke, the pressure is 10 bar. Heat added during the constant volume process is 200 kJ. Determine : (ii) Air standard efficiency (i) Percentage clearance liii) Mean effective pressure (iv) Ideal power developed by the engine if the engine runs at 400 r.p.m. so that there are 200 complete cycles per minutes. [Ans. (i) 23.76% ; (i) 47.2% ; (iii) 2.37 bar (iv) 321 kW]
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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Transcribed Image Text:5. An engine working on Otto cycle has a volume of 0.5 m², pressure 1 bar and temperature 27°C at the
commencement of compression stroke. At the end of compression stroke, the pressure is 10 bar. Heat
added during the constant volume process is 200 kJ. Determine :
(ii) Air standard efficiency
(i) Percentage clearance
(iii) Mean effective pressure
(iv) Ideal power developed by the engine if the engine runs at 400 r.p.m. so that there are 200 complete
cycles per minutes.
[Ans. (i) 23.76% ; (ii) 47.2% ; (iii) 2.37 bar (iv) 321 kW)
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