An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 100 kPa and 170C, and 800 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Accounting for the variation of specific heats of air with temperature, determine (a) the maximum temperature and pressure that occur during the cycle, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (e) Also, determine the power output from the cycle, in kW, for an engine speed of 4000 rpm (rev/min). Assume that this cycle is operated on an engine that has four cylinders with a total displacement volume of 1.6 L.
An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 100 kPa and 170C, and 800 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Accounting for the variation of specific heats of air with temperature, determine (a) the maximum temperature and pressure that occur during the cycle, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (e) Also, determine the power output from the cycle, in kW, for an engine speed of 4000 rpm (rev/min). Assume that this cycle is operated on an engine that has four cylinders with a total displacement volume of 1.6 L.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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An ideal Otto cycle has a compression ratio of 8. At the beginning of the
compression process, air is at 100 kPa and 170C, and 800 kJ/kg of heat is transferred
to air during the constant-volume heat-addition process. Accounting for the
variation of specific heats of air with temperature, determine (a) the maximum
temperature and pressure that occur during the cycle, (b) the net work output, (c)
the thermal efficiency, and (d) the mean effective pressure for the cycle. (e) Also,
determine the power output from the cycle, in kW, for an engine speed of 4000 rpm
(rev/min). Assume that this cycle is operated on an engine that has four cylinders
with a total displacement volume of 1.6 L.
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