Question

An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27\deg C, and 770 k(J)/(k)g of heat is transferred to air during the constant-volume heat-addition process. Take into account constant specific heats at room temperature. The properties of air at room temperature are cp=1.005 k(J)/(k)gK, cv=0.718 k(J)/(k)gK, R=0.287 k(J)/(k)g*K, and k=1.4 a) The pressure at the end of the heat-addition process is kPa. b) The temperature at the end of the heat-addition process is K. c) The net work output is ..... (kJ)/(kg) d) The thermal efficiency is ...... % e) The mean effective pressure for the cycle is..... kPa

Name: an ideal otto cycle has a compression ratio of 8 at the beginning of the compression process air is at 95 kpa and 27deg c and 770 kjkg of heat is transferred to air during the constant volum 63614
Uploaded: 2022-05-31T13:31:30-08:00
Duration: 6 min 50 s
Channel: Madhur L
Description: an ideal otto cycle has a compression ratio of 8 at the beginning of the compression process air is at 95 kpa and 27deg c and 770 kjkg of heat is transferred to air during the constant volum 63614

          An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27\deg C, and 770 k(J)/(k)g of heat is transferred to air during the constant-volume heat-addition process. Take into account constant specific heats at room temperature. The properties of air at room temperature are  cp=1.005 k(J)/(k)g*K,   cv=0.718 k(J)/(k)g*K, R=0.287 k(J)/(k)g*K, and   k=1.4
a) The pressure at the end of the heat-addition process is 
 kPa.
b) The temperature at the end of the heat-addition process is 
 K.
c) The net work output is ..... (kJ)/(kg)
d) The thermal efficiency is ...... %
e) The mean effective pressure for the cycle is..... kPa

Added by Alex M.

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