ZuoTi.Pro
Question

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

Consider a modification of the air-standard Otto cycle in which the isentropic compression and expansion processes are each replaced with polytropic processes having n = 1.35. The compression ratio is 10 for the modified cycle. At the beginning of compression, p1 = 1 bar and T1 = 310 K. The maximum temperature during the cycle is 2200 K. Determine: (a) the heat transfer and work in kJ per kg of air for each process in the modified cycle. (b) the percent thermal efficiency. (c) the mean effective pressure, in bar.

engineering   Mechanical-Engineering   
1 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

selu aivan n = ●3S 2. o,862 m3

2 1
Add a comment
Know the answer?
Add Answer to:
Consider a modification of the air-standard Otto cycle in which the isentropic compression and expansion processes...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

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

    Consider a modification of the air-standard Otto cycle in which the isentropic compression and expansion processes are each replaced with polytropic processes having n = 1.25. The compression ratio is 8 for the modified cycle. At the beginning of compression, p1 = 1 bar and T1 = 310 K. The maximum temperature during the cycle is 2200 K. Determine: (a) the heat transfer and work in kJ per kg of air for each process in the modified cycle. (b) the...

  • Problem 9.011 SI Consider a modification of the air-standard Otto cycle in which the isentropic compression...

    Problem 9.011 SI Consider a modification of the air-standard Otto cycle in which the isentropic compression and expansion processes are each replaced with polytropic processes having n = 1.25. The compression ratio is 10 for the modified cycle. At the beginning of compression, P1 = 1 bar and T1 = 310 K. The maximum temperature during the cycle is 2200 K. Determine: (a) the heat transfer and work in kj per kg of air for each process in the modified...

  • At the beginning of the compression process of an air-standard Otto cycle, P1 = 1.0 bar,...

    At the beginning of the compression process of an air-standard Otto cycle, P1 = 1.0 bar, T1 = 290 K, V1 = 400 cm3. The maximum temperature in the cycle is 2200 K and the compression ratio is 8. Determine: a) the heat addition in kJ, b) the net work in kJ, c) the thermal efficiency, and d) the mean effective pressure, in bar.

  • engine performance experiment (otto cycle) III.4 Isentropic Polytropic Processes The air-standard Otto cycle models bot...

    engine performance experiment (otto cycle) III.4 Isentropic Polytropic Processes The air-standard Otto cycle models both the compression and expansion phases of the combustion gases as isentropic. How well does this assumption hold up? From the same set of data used in III.1, plot a graph of log p versus log V (or ln p versus In V) From visual inspection of the graph obtained, are expansion and compression processes polytropic? If so, determine the polytropic indices. By comparing these values...

  • 1. At the beginning of the compression process of an air-standard Otto cycle, P bar, T1...

    1. At the beginning of the compression process of an air-standard Otto cycle, P bar, T1 = 290 K, Vi = 400 cm. The maximum temperature in the cycle is 2200 K and the compression ratio is 8. Determine (a) the heat addition, in kJ (b) the net work, in kJ. (c) the thermal efficiency. (d) the mean effective pressure, in bar.

  • At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar...

    At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300 K. The compression ratio is 6 and the heat addition per unit mass of air is 1300 kJ/kg. Determine: (a) the maximum temperature of the cycle, in K. (b) the net work, in kJ/kg. (c) the percent thermal efficiency of the cycle. (d) the mean effective pressure, in kPa.

  • Problem 9.001 SI At the beginning of the compression process of an air-standard Otto cycle, p1...

    Problem 9.001 SI At the beginning of the compression process of an air-standard Otto cycle, p1 1 bar and T1 300 K. The compression ratio is 6 and the heat addition per unit mass of air is 1400 kJ/kg Determine: (a) the maximum temperature of the cycle, in K. (b) the net work, in kJ/kg. (c) the percent thermal efficiency of the cycle (d) the mean effective pressure, in kPa.

  • At the beginning of the compression process of an air standard Otto cycle, p1 = 1...

    At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.3 L. Determine per cylinder: a) the volume at state 1. b) the air mass per cycle. c) the heat addition per cycle, in kJ. d) the heat rejection per cycle, in...

  • At the beginning of the compression process of an air standard Otto cycle, p1 = 1...

    At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.7 L. Determine per cylinder: a)    the volume at state 1. b)    the air mass per cycle. c)    the heat addition per cycle, in kJ. d)    the heat rejection per cycle, in kJ. e)    the net work...

  • Please explain which tables you used: The compression ratio of an air-standard Otto cycle is 9.5....

    Please explain which tables you used: The compression ratio of an air-standard Otto cycle is 9.5. Prior to the isentropic compression process, the air is at 100 kPa, 35°C, and 600 cm3. The temperature at the end of the isentropic expansion process is 800 K. Using specific heat values at room temperature, determine: (a) the highest temperature and pressure in the cycle; (b) the amount of heat transferred in, in kJ; (c) the thermal efficiency; and (d) the mean effective...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT