Question

An air standard limited pressure cycle has a compression ratio of 15 and
compression begins at 0.1MPa, 40⁰C. the maximum pressure is limited to 6MPa
and heat added is 1.675MJ/kg. Compute: heat added during constant pressure
process, heat added during constant volume process, cut-off ratio, MEP and
cycle efficiency?

Answer 1

Answer:

Otto cycle Thermodynamics. 1. an ideal thermodynamic combustion cycle, as follows: a compression at constant entropy; a constant-volume heat transfer to the system; an expansion at constant entropy; and a constant-volume heat transfer from the system. The thermal efficiency of the ideal Otto cycle increases with an increasing compression ratio. 2. an actual version of this cycle used in internal combustion engines.