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The following data were collected from a 4-cylinder compression ignition engine running on diesel fuel: Ne=2,250...

The following data were collected from a 4-cylinder compression ignition engine running on diesel fuel: Ne=2,250 rpm, mf=10.1 kg/hr, Hg=45,600 kJ/kg, De=2.2L, r=16, pime=1,050 kPa, and p1=100kPa. What is the dual-cycle efficiency of this engine? Use a βdc of 1 and a T3/T1 ratio of 9.

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