12. 1st Law of Thermodynamics (Closed Systems) (Revision)
13. Note!!!rp, r, rcrp: Pressure ratio (Brayton Cycle)r: Compression ratio (Otto & Diesel Cycles)rc: Cutoff ratio ( Diesel Cycle)
14. Example (5-10): A Diesel engine has a compression ratio of 20:1 with an inletstate of 95 kPa, 290 K, and volume 0.5 L. The maximum cycletemperature is 1800 K. find the maximum pressure, the netspecific work, and the thermal efficiency.