4. An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process,air is at 95 kPa and 27 °C, and 750 kJ/kg of heat is transferred to air during the constant-volumeheat-addition process. Using constant specific heats at room temperature, determine (a) thepressure and temperature at the end of the heat-addition process, (b) the net work output, (c) thethermal efficiency, and (d) the mean effective pressure for the cycle.

Answered: Image /qna-images/answer/428c0f7c-82ee-489b-977f-fe11ab2d7fd8.jpg

Answered: 4. An ideal Otto cycle has a…

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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5. Consider an ideal Stirling cycle using air as the working fluid. Air is at 350 K and 200 kPa at the beginning of the isothermal compression process, and heat is supplied to air from a source at 1800 K in the amount of 900 kJ/kg. Determine (a) the maximum pressure in the cycle and (b) the net work output per unit mass of air
A Carnot engine using 1lbm air has the following conditions: heat addition beginning at 2200 psia and 22000R and continuing until the pressure is 1400 psia; isothermal compression from 14.7 psia and 5400R and continuing until the pressure is 23.1 psia. Determine (a) the heat transfer into the cycle; (b) the heat transfer from the cycle; (c) the work for each of the processes; and (d) the cycle efficiency.
An air-standard Otto cycle with a compression ratio of 9 has air entering at 101 kPa and 27°C. There is an input of 1800 kJ/kg of heat during heat addition process. Determine the thermal efficiency. Answer it completely to have great rate.
Instead, assume variable specific heat An ideal Otto cycle has a compression ratio of 8. Atthe beginning of the compression process, air is at 95 kPaand 278C, and 750 kJ/kg of heat is transferred to air dur-ing the constant-volume heat-addition process. Taking intoaccount the variation of specific heats with temperature,determine (a) the pressure and temperature at the end ofthe heat-addition process, (b) the net work output, (c) thethermal efficiency, and (d) the mean effective pressure forthe cycle.
Answer the question.
An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 103 kPa and 27°C, and 1850 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
An ideal Otto cycle has a compression ratio of 8. At the beginning of the Compression process, air is at 100 kPa and 17°C, and 800 kJ/kg of heat is Transferred to air during the constant-volume heat-addition process. (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. P. kPa Isentropic 4 in Isentropic 100 Jour V₁ = V₁
A 4 cylinder Otto cycle engine has a compression ratio of 8. Inlet air is at 100 kPa and 17°C, and 800 kJ/kg of heat is transferred to the engine. Determine (a) the maximum temperature and pressure that occur during the cycle, (b) the net work output, (c) the exhaust gas temperature (d ) the mean effective pressure for the cycle.

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