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Determine the exergy destruction associated with the heat rejection process of the Diesel cycle described in Prob. 9-52E, assuming a source temperature of 3200 R and a sink temperature of 540 R. Also, determine the energy at the end of the isentropic expansion process.

Prob. 9-52E:

An air-standard Diesel cycle has a compression ratio of 18.2. Air is at 120°F and 14.7 psia at the beginning of the compression process and at 3200 R at the end of the heataddition process. Accounting for the variation of specific heats with temperature, determine

(a) the cutoff ratio,

(b) the heat rejection per unit mass, and

(c) the thermal efficiency.

Computer Engineering, Engineering

  • Category:- Computer Engineering
  • Reference No.:- M92031388

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