Compare P8-39 Air at 100 kPa, 27°C at a volumetric flow rate of 10 m/s enters an ideal Brayton cycle and is compressed to 1750 kPa. The air temperature at the entrance to the turbine is 1073°C. Using a cold-air-standard analysis, determine the following: a. The net power (in kW) b. The heat addition (in kW) c. The cycle thermal efficiency d. Back work ratio

Compare P8-39 Air at 100 kPa, 27°C at a volumetric flow rate of 10 m/s enters an ideal Brayton cycle and is compressed to 1750 kPa. The air temperature at the entrance to the turbine is 1073°C. Using a cold-air-standard analysis, determine the following: a. The net power (in kW) b. The heat addition (in kW) c. The cycle thermal efficiency d. Back work ratio

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

See similar textbooks

Similar questions

The pressure and temperature at the beginning of compression of a cold air-standard Diesel cycle are 100 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 7.2 MPa and the temperature is 2150 K. Assume constant specific heats evaluated at 300 K. Determine: (a) the compression ratio. (b) the cutoff ratio. (c) the percent thermal efficiency of the cycle. (d) the mean effective pressure, in kPa.
plementary Exam (1 x php?attempt=D176481 At the beginning of the compression process of an ideal Diesel cycle, air is at 95 kPa and 25°C, and 640 kJ/kg of heat is transferred to air during the heat-addition process. At the end of isentropic expansion process, air is at 265 kPa and 607°C. Taking into account the variation of specific heats with temperature, the thermal efficiency of the cycle is Lütfen birini seçin: а. 30.4% b. 27.5% c. 41.2% d. 37.3% e. 43.7% Sonraki sayfa
The adiabatic efficiencies of the compressor and turbine used in an air-standard Brayton cycle are 85% and 90%, respectively. If the cycle operates between 14.7 and 55 psia and if the maximum and minimum temperatures are 1500 F and 80 F, respectively, compute the thermal efficiency of the cycle. Assume constant specific heats.
Air enters the compressor of an ideal air standard Brayton cycle at 100 kPa and 305 K with a volume flow rate of 5.0 m3/s. The compressor pressure ratio is 10. At the inlet to the turbine, the temperature is 1000 K. Determine: a) The thermal efficiency, % b) The percent decrease in thermal efficiency if the efficiency of the turbine and compressor is 85%, %.
Consider a Diesel cycle with cold-air-standard assumptions, and compression ratio of 21. The temperature and pressure at the beginning of the compression process are 320K and 120kPa respectively. The cutoff ratio for this cycle is 1.8. The isentropic efficiency of the compression and expansion process are 85%. Determine the temperature and pressure at the end of each process of the cycle, the heat transfer per unit mass in and out of the air; qin and qout, thermal efficiency of the cycle, and the mean effective pressure of the cycle.
Air enters the compressor of an ideal air-standard Brayton cycle at 110 kPa, 289 K, with a volumetric flow rate of 5 m3/s. The compressor pressure ratio is 12:1. The turbine inlet temperature is 1567 K. Take the gas constant as 289 J/kg.K and Specific heat at constant pressure and constant volume for air as 1.004 kJ/kg K and 0.708 kJ/kg K respectively. Calculate the net power developed to two decimal places and include the correct SI unit symbol.
The pressure and temperature at the beginning of compression of a cold air-standard Diesel cycle are 90 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 7.2 MPa and the temperature is 2050 K. Assume constant specific heats evaluated at 300 K. Determine: (a) the compression ratio. (b) the cutoff ratio. (c) the percent thermal efficiency of the cycle. (d) the mean effective pressure, in kPa.
The pressure and temperature at the beginning of compression of a cold air-standard Diesel cycle are 90 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 7.2 MPa and the temperature is 2250 K. Assume constant specific heats evaluated at 300 K. Determine the mean effective pressure, in kPa.
In an ideal Brayton cycle, air is compressed from 95 kPa and 25°C to 1400 kPa. Under cold-air-standard conditions, the thermal efficiency of this cycle is (a) 40 percent (b) 44 percent (c) 49 percent (d) 54 percent (e) 58 percent
I need the answer as soon as possible