An air-standard dual cycle has a compression ratio of 9.1 and displacement of Va= 2.2 L. At the beginning of compression, P1 = 95 kPa, and T1 = 290 K. The heat addition is 4.25 kJ, with one quarter added at constant volume and the rest added at constant pressure. Determine: a) each of the unknown temperatures at the various states, in K. b) the net work of the cycle, in kJ. c) the power developed at 3000 cycles per minute, in kW. d) the thermal efficiency. e) the mean effective pressure, in kPa.

Elements Of Electromagnetics
7th Edition
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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An air-standard dual cycle has a compression ratio of 9.1 and displacement of Va= 2.2 L. At the beginning of compression, p1 = 95 kPa,
and T1 = 290 K. The heat addition is 4.25 kJ, with one quarter added at constant volume and the rest added at constant pressure.
Determine:
a) each of the unknown temperatures at the various states, in K.
b) the net work of the cycle, in kJ.
c) the power developed at 3000 cycles per minute, in kW.
d) the thermal efficiency.
e) the mean effective pressure, in kPa.
Transcribed Image Text:An air-standard dual cycle has a compression ratio of 9.1 and displacement of Va= 2.2 L. At the beginning of compression, p1 = 95 kPa, and T1 = 290 K. The heat addition is 4.25 kJ, with one quarter added at constant volume and the rest added at constant pressure. Determine: a) each of the unknown temperatures at the various states, in K. b) the net work of the cycle, in kJ. c) the power developed at 3000 cycles per minute, in kW. d) the thermal efficiency. e) the mean effective pressure, in kPa.
Step 1
Your Answer
Correct Answer (Used)
Determine each of the unknown temperatures at the various states, in K.
T2 =
684.1
K
T3 =
1141
K
T4 =
K
2081
T5 =
K
1270
Step 2
X Your answer is incorrect.
Determine the net work of the cycle, in kJ.
Wcycle =
i
2.28
kJ
Hint
Save for Later
Attempts: 1 of 3 used
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Transcribed Image Text:Step 1 Your Answer Correct Answer (Used) Determine each of the unknown temperatures at the various states, in K. T2 = 684.1 K T3 = 1141 K T4 = K 2081 T5 = K 1270 Step 2 X Your answer is incorrect. Determine the net work of the cycle, in kJ. Wcycle = i 2.28 kJ Hint Save for Later Attempts: 1 of 3 used Submit Answer
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