GEY8.2.1: Evaluating the performance of a piston-cylinder assembly undergoing an air-standard Otto cycle (adaptProblem 9.01 in the 9th edition).576700.qx3zqy7Jump to level 1= 300 K. TheAt the beginning of the compression process of an air-standard Otto cycle, p₁ = 1 bar and T₁compression ratio is 6.5 and the heat addition per unit mass of air is 1200 kJ/kg. Determine the maximumtemperature of the cycle Tmax in K.Tmax= Ex: 8888.8KCheck1NextAirO234Fee

Step 1: (1). Calculate the temperature at the end of the compression stroke (T2): For an…

Answered: GE Y 8.2.1: Evaluating the performance…

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 air-standard dual cycle has a compression ratio of 8.6 and displacement of Vd= 2.2 L. At the beginning of compression, p1= 95 kPa, and T1 = 290 K. The heat addition is 4.75 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 X Your answer is incorrect. Determine each of the unknown temperatures at the various states, in K. T2 = i 685.79 K T3 = i 1268.14 K T4 = i 2531.97 K T5 = i 0.55 K Hint
The state at the beginning of compression of an air-standard Diesel cycle is fixed by p₁ = 100 kPa and T₁ = 310 K. The compression ratio is 18 and the cutoff ratio is 1.9. Determine: (a) the maximum temperature, in K. (b) the pressure at the end of the expansion, in kPa. (c) the net work per unit mass of air, in kJ/kg. (d) the percent thermal efficiency.
The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are 90 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 6821 kPa and the temperature is 2150 K. Step 1 X Your answer is incorrect. Determine the compression ratio. r = i 9.64 Hint Save for Later Attempts: 1 of 3 used Submit Answer Step 2 The parts of this question must be completed in order. This part will be available when you complete the part above. Step 3 The parts of this question must be completed in order. This part will be available when you complete the part above. Step 4 The parts of this question must be completed in order. This part will be available when you complete the part above.
MTQ4 The temperature at the beginning of the compression process of an air-standard Otto cycle with a compression ratio of 10 is 21 °C, the pressure is 101 kPa, and the mass flow rate of air in the engine is 580 kg/min. The maximum temperature during the cycle is 1300 °C. Cp = 1.006 kJ/kg K Cv = 0.717 kJ/kg K
At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300 K. The compression ratio is 8.5 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.
Provide a complete and logical solution for the problem. If linear interpolation is required in the problem, tabulated values is considered as a solution. Also, provide T-S or P-V diagrams for each problem. An ideal Otto engine, operating on the hot-air standard with k=1.34, has a compression ratio of 5. At the beginning of compression, the volume is 6 ft3, the pressure is 13.75 psia and the temperature is 100°F. During the constant-volume heating, 340 BTU are added per cycle. Find the following: a. Percent clearance b. Temperature after heat addition c. Pressure after heat addition d. Efficiency
At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300 K. The compression ratio is 3.5 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.
The displacement volume of an internal combustion engine is 2.15 liters. The processes within each cylinder of the engine are modeled as an air-standard Diesel cycle with a cutoff ratio of 2.5. The state of the air at the beginning of compression is fixed by p1 = 1.6 bar, T1 = 325 K and V1 = 2.36 liters. If the cycle is executed 2100 times per min, determine:d) the power developed by the engine, in kW,e) and the thermal efficiency.
THERMODYNAMICS
The displacement volume of an internal combustron engine is 5.6 liters. The processes within each cylinder of the engine are modeled as an air-standard Diesel cycle with a cutoff ratio ß of 2.4. The state of the air at the beginning of compression is fixed by P 95 kPa, T= liters. For air, take specific heat ratio y 1.4, and R 0.287 kJ kg.K. Determine the net work per cycle, in kl. //int find the temperatures at all states and apply Ocycle= Weycle) b. If the net work per cycle is equal to 4.78 kJ. determine the indicated mean effeetive pressure in kPa, Determine the thermal efficiency. d. Determine the power developed by the engine, in kW, if the cycle is executed 1500 times 27°C, and V = 6.0 a. C. per min

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