In: Mechanical Engineering
A single-cylinder, four stroke research engine operates on Otto
cycle. The specification
of the engine is shown as below:-
Displacement volume of the cylinder = 540 cm3
Clearance volume of the cylinder = 60 cm3
Minimum temperature = 200°C
Minimum pressure = 200 kPa
Net work output = 1000 kJ/kg
Sketch the process on a P-V diagram and by using constant specific
heat at room
temperature, determine:
i) the temperature and pressure at each process,
ii) the thermal efficiency of the engine, and
iii) the Mean Effective Pressure (MEP).