Consider a modification of the cold air-standard Otto cycle in which the isentropic compression and expansion processes

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Consider A Modification Of The Cold Air Standard Otto Cycle In Which The Isentropic Compression And Expansion Processes 1 (13.18 KiB) Viewed 25 times

Consider a modification of the cold air-standard Otto cycle in
which the isentropic compression and expansion processes are each
replaced with the polytropic processes having n =1.3. The
compression ratio is 10 for the modified cycle. At thte beginning
of compression,p1 =1 bar and T1 =300 K and V1 =2270 cm3. The
maximum temperature during the cycle is 2000 K.
a. Determine the thermal efficiency, for the modified cycle.
b. Determine the heat rejected in kJ, for the modified cycle
c. Determine the heat input in kJ, for the modified cycle
d. Determine the work output in kJ ,for the modified cycle
e. Determine the mean effective pressure in kPa, for the
modified cycle
Determine the work input in kJ, for the modified cycle.
Consider a modification of the cold air-standard Otto cycle in which the isentropic compression and expansion processes are each replaced with the polytropic processes having n =1.3. The compression ratio is 10 for the modified cycle. At thte beginning of compression, p1=1 bar and T1 =300 K and V1 = 2270 cm3. The maximum temperature during the cycle is 2000 K. a. Determine the thermal efficiency, for the modified cycle. b. Determine the heat rejected in kJ, for the modified cycle c. Determine the heat input in kJ, for the modified cycle d. Determine the work output in kJ,for the modified cycle e. Determine the mean effective pressure in kPa, for the modified cycle f. Determine the work input in kJ, for the modified cycle.