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A spark ignition engine of four-cylinder four-stroke cycle of a
bore=88mm and a stroke of 84mm produce a torque of 160
N.m at 2200 rpm. The specific fuel consumption is 0.370
kg/kW.hr , the air fuel ratio is 18.5:1 and the LCV= 44500
kJ/kg. Determine:-
1-the brake power
2-the brake thermal efficiency
3-the volumetric efficiency if Pa= 1.0132 bar and Ta=310 K
4-the mean piston speed​

Respuesta :

arahmed015

Answer:

1-Pb=36.86 Kw

2-nb= 22.3%

3-nV=52.69%

4-SP=369.9 m/s

Explanation:

*Note we have ideal gas so PV=mRT --> P=(m/V)RT--> P=pRT--> p= P/RT

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