Q2: A spark ignition engine has a swept volume of 2.0 liters, and operates on the four-stroke cycle. When installed in the Rover vehicle, the operating point for a vehicle speed of 120 km/h corresponds to 3669 rpm, and a torque of 71.85 N.m, for which the specific fuel consumption is 298 g/kWh. Calculate the bmep at this operating point, the arbitrary overall efficiency and the fuel economy (liters/100km). If the air fuel ratio is 20:1, calculate the volumetric efficiency of the engine. The calorific (heating) value of the fuel is 43 MJ/kg, and its density is 795 kg/m.

Q2: A spark ignition engine has a swept volume of 2.0 liters, and operates on the four-stroke cycle. When installed in the Rover vehicle, the operating point for a vehicle speed of 120 km/h corresponds to 3669 rpm, and a torque of 71.85 N.m, for which the specific fuel consumption is 298 g/kWh. Calculate the bmep at this operating point, the arbitrary overall efficiency and the fuel economy (liters/100km). If the air fuel ratio is 20:1, calculate the volumetric efficiency of the engine. The calorific (heating) value of the fuel is 43 MJ/kg, and its density is 795 kg/m.

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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Q2: A spark ignition engine has a swept volume of 2.0 liters, and operates on the
four-stroke cycle. When installed in the Rover vehicle, the operating point for a
vehicle speed of 120 km/h corresponds to 3669 rpm, and a torque of 71.85 N.m, for
which the specific fuel consumption is 298 g/kWh. Calculate the bmep at this
operating point, the arbitrary overall efficiency and the fuel economy (liters/100km).
If the air fuel ratio is 20:1, calculate the volumetric efficiency of the engine. The
calorific (heating) value of the fuel is 43 MJ/kg, and its density is 795 kg/m.
Ambient conditions are 27 °C and 1.05 bar.

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