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In: Mechanical Engineering

A diesel engine intakes atmospheric air at 60°F and adds 800 Btu/lbm of energy. If the...

A diesel engine intakes atmospheric air at 60°F and adds 800 Btu/lbm of energy. If the maximum pressure is 1200 psia, calculate:
(a) the cutoff ratio, rc ;
(b) the thermal efficiency, ? ;
(c) the power output, in hp, for an airflow of 0.2 lbm/sec.
[Hints: Follow the Diesel cycle diagram! For ?, you will need the compression ratio.]

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