B. An engine operating on air standard Otto cycle has an initial temperature of 100 deg F, and the engineoperates at a mountainous region with an atmospheric pressure of 14.5 psla. Pressures at the end ofcompression is 351 psig, and at the end of heat addition at 1100 psig. If mass of air intake per cylinder = 0.04 kgand the engine has 4 cylinders, 4 stroke type, determine the following in the Table below (fill up with youranswers, and show your solution in separate sheets):Item1. PV and TS diagrams2.PVT values at eachpoint in the cycle,see Table below.3. Compression ratio4. Expansion ratio5. Pressure ratio6. Per cent clearance7. Clearance volume(cu. ft)8. Displacementvolume (cu.ft)9. Qa (Heat added)(BTU)10. Net work using Qvalues (BTU)11. Net work usingSwork (BTU)12. Thermal efficiencyusing temperaturevalues (%)13. Thermal efficiencyusing rk value (%)14. Horsepowerproduced if engineis 4 stroke type,engine rpm = 100015. MEP (psia)AnswerPressure(psia)Temp (deg R)Volume(cu.ft)123Unit4

given; initial temperature(T1)=1000F…

Answered: B. An engine operating on air standard…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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The compression ratio in an air-standard Otto cycle is 10. At the beginning of the compression stroke the pressure is 0.10 MPa and the temperature is 15°C. The heat transfer to the air per cycle is 1800 kJ/kg air. Determine (a) the pressure and temperature at the end of each process of the cycle and (b) the thermal efficiency.
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