Question

A four cylinder two stroke petrol engine with stroke to bore ratio 1.2 develops 35

kW brake power at 2200 rpm. The mean effective pressure in each cylinder is 9

bar and mechanical efficiency is 78%. Determine (1) diameter and stroke of each

cylinder, (2) Brake thermal efficiency, (3) Indicated thermal efficiency. If fuel

consumption is 8 kg/hr having C.V. =43000 KJ/kg
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Answer 1

Answer:

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