Question: A four-stroke engine runs on the Otto cycle. It delivers 150 hp at 3600 rpm. (a) How many cycles are in 1 min? (b) If

A four-stroke engine runs on the Otto cycle. It delivers 150 hp at 3600 rpm.
(a) How many cycles are in 1 min?
(b) If the thermal efficiency of the engine is 20%, what is the heat input per minute?
(c) How much heat is wasted (per minute) to the environment?

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a There are two revolutions in each cycle so 3600 rpm is ... View full answer

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