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5. A four stroke gas engine develops 4.2 kW at 180 r.p.m. and at full load. Assuming the follow- ing data, calculate the relative efficiency based on indicated power and air-fuel ratio used. Volumetric efficiency = 87%, mechanical efficiency = 74%, clearance volume = 2100 cm³, swept volume = 9000 cm" fuel consumption = 5 m³/h, calorific value of fuel = 16750 kJ/m³ 50.2% 7156: 11

5. A four stroke gas engine develops 4.2 kW at 180 r.p.m. and at full load. Assuming the follow- ing data, calculate the relative efficiency based on indicated power and air-fuel ratio used. Volumetric efficiency = 87%, mechanical efficiency = 74%, clearance volume = 2100 cm³, swept volume = 9000 cm" fuel consumption = 5 m³/h, calorific value of fuel = 16750 kJ/m³ 50.2% 7156: 11

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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5. A four stroke gas engine develops 4.2 kW at 180 r.p.m. and at full load. Assuming the follow- ing data, calculate the relative efficiency based on indicated power and air-fuel ratio used. Volumetric efficiency = 87%, mechanical efficiency = 74%, clearance volume = 2100 cm³, swept volume = 9000 cm" fuel consumption = 5 m³/h, calorific value of fuel = 16750 kJ/m³ [Ans. 50.2%, 7.456: 1]
Transcribed Image Text:5. A four stroke gas engine develops 4.2 kW at 180 r.p.m. and at full load. Assuming the follow- ing data, calculate the relative efficiency based on indicated power and air-fuel ratio used. Volumetric efficiency = 87%, mechanical efficiency = 74%, clearance volume = 2100 cm³, swept volume = 9000 cm" fuel consumption = 5 m³/h, calorific value of fuel = 16750 kJ/m³ [Ans. 50.2%, 7.456: 1]
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