Consider a cold air standard Otto cycle for a 4-stroke engine
with four cylinders. The compression ratio is 9. At the beginning
of the compression the air in each cylinder is at 95 kPa, 5 C and
occupies a volume of 555 cm^3. During the heat addition process the
pressure triples. Determine the efficiency of the cycle and the net
power output (per kg of air). If the engine is running at 2800 RPM
determine the power output in horsepower. Ans. 0.59, 562 kJ/kg,
46.7 hp
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