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A two-cylinder, four-stroke gas engine has a bore of 380 mm and a stroke of 585...

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Mechanical Engineering

A two-cylinder, four-stroke gas engine has a bore of 380 mm anda stroke of 585 mm. At 240 rev/min the torque developed is 11.86kNm. If the engine is supplied with a mixture of gas and air in theproportion of 1 to 7 by volume. The estimated volumetric efficiencyis 85% and the Qnet,p of the gas is 38.6 MJ/m3. Calculate the brakethermal efficiency of the engine.

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