A cold air-standard Otto cycle has a compression ratio of 12 and the temperature and pressure at the beginning of the compression process are 520°R and 14.2 Ibf/in.?, respectively. The heat addition per unit mass of air is 400 Btu/lb. Assume constant specific heats evaluted at 520°R.

Elements Of Electromagnetics
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A cold air-standard Otto cycle has a compression ratio of 12 and the temperature and pressure at the beginning of the compression
process are 520°R and 14.2 Ibf/in.?, respectively. The heat addition per unit mass of air is 400 Btu/lb. Assume constant specific heats
evaluted at 520°R.
Determine:
(a) the maximum temperature, in °R.
(b) the maximum pressure, in Ibf/in.?
(c) the percent thermal efficiency.
(d) the mean effective pressure, in Ibf/in.2
Transcribed Image Text:A cold air-standard Otto cycle has a compression ratio of 12 and the temperature and pressure at the beginning of the compression process are 520°R and 14.2 Ibf/in.?, respectively. The heat addition per unit mass of air is 400 Btu/lb. Assume constant specific heats evaluted at 520°R. Determine: (a) the maximum temperature, in °R. (b) the maximum pressure, in Ibf/in.? (c) the percent thermal efficiency. (d) the mean effective pressure, in Ibf/in.2
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