A cold air-standard Otto cycle has a compression ratio of 12 and the temperature and pressure at the beginning of the compressionprocess are 520°R and 14.2 Ibf/in.?, respectively. The heat addition per unit mass of air is 400 Btu/lb. Assume constant specific heatsevaluted at 520°R.Determine:(a) the maximum temperature, in °R.(b) the maximum pressure, in Ibf/in.?(c) the percent thermal efficiency.(d) the mean effective pressure, in Ibf/in.2

As per bartleby guidelines we are allowed to solve only 1st 3 subparts if multiple subparts are…

Answered: A cold air-standard 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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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.
At the beginning of the compression process of an Otto cycle, p1 = 14.7 lbf/in.2 and T1 = 530°R. The maximum cycle temperature is 3000°R. On a cold air-standard basis using k = 1.4, determine the net work developed, in Btu per unit mass of air, the thermal efficiency, and mean effective pressure, in lbf/in.2, for compression ratios of 6, 8, and 10.
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.
4Air enters the compressor of a simple gas turbine at p1 = 14 lbf/in2, T1 = 520°R. The isentropic efficiencies of the compressor and turbine are 83 and 87%, respectively. The compressor pressure ratio is 12 and the temperature at the turbine inlet is 2500°R. The volumetric flow rate of the air entering the compressor is 9000 ft3/min. Use an air-standard analysis. a) Determine the net power developed, in Btu/h. b) Determine the thermal efficiency of the cycle. c) The temperatures at the compressor and turbine exits in °R. d) The temperatures at the compressor and turbine enters in °R rmine the net power developed, in Btu/h .
Here is the question Air enters the compressor ofthe cycle at 1 bar and 25 °C. Pressure after compression is 3 bar.Temperature at turbine inlet is 650 °C please specify these two parts answer too - a) heat rejected in the cooler ( is it Wc ?? ) b ) temprature of air leaving the solution ( is it T4 ?? ) I have already the solution please just highlight these two Answers
3. Air is used in an ideal Brayton cycle (shown in p-v and T-s diagram). The state conditions are given in the following Table. (a) The heat addition and heat rejection (b) The net power developed per unit mass flow rate (c) The thermal efficiency State T(°C) P(kPa) 1 20 100 3 1000 350 T 3 3 b a 2.

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