An ideal Brighton cycle has a pressure ratio of 15. The inlet air to the compressor is assumed to have a pressure of 100 kPa and a temperature of 340, and in a turbine inlet with a temperature of 1300. Assuming specific heat variables (using the relationships of relative pressure, relative volume and standard air table) for air, Assume compressor efficiency of 82% and turbine efficiency of 92%. It is desirable: • Show the new enthalpy for points 2 and 4 with indices (2a) and (4a). • Temperature unit K

An ideal Brighton cycle has a pressure ratio of 15. The inlet air to the compressor is assumed to have a pressure of 100 kPa and a temperature of 340, and in a turbine inlet with a temperature of 1300. Assuming specific heat variables (using the relationships of relative pressure, relative volume and standard air table) for air, Assume compressor efficiency of 82% and turbine efficiency of 92%. It is desirable: • Show the new enthalpy for points 2 and 4 with indices (2a) and (4a). • Temperature unit K

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

Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with a volumetric flow rateof 5 m3/s. The compressor pressure ratio is 10. The turbine inlet temperature is 1400 K. Determine the rate of heat transfer to the air passing through the combustor, in kW.
An idealcold air-standard Brayton cycle produces some quantity of power. Air with a mass flow rate of 6 kg/s enters the compressor at 100 kPa, 300 K.It is also known that the compressor has a pressure ratio of 10 and the turbine inlet temperature is 1400 K.If k = 1.4for the working fluid, determine the thermal efficiency, the ratio of back work, and the net power for the cycle in kW.
Air enters the compressor of a gas turbine at 100 kPa and 25°C. pressure ratio 5 and For a maximum temperature of 850°C, the back work rate and thermal efficiency of the Brayton cycle Please specify.
An air-standard Diesel cycle has a maximum temperature of 1800 K. At the beginning of compression, p1 = 95 kPa and T4 = 300 K. The mass of air is 12 g. For a compression ratio of 15, determine (a) the net work of the cycle, in KJ. (b) the thermal efficiency. (c) the mean effective pressure, in kPa.
Within 30 Minutes. A gas turbine power plant operates on a standard air cycle between pressures of 0.1 and 0.6 MPa. The inlet temperature is 22°C in the compressor and in the turbine it is 747°C. The isentripic efficiencies of the compressor and the turbine are 84% and 87% respectively, a regenerator is used that has an efficiency of 60%. Using constant specific heats, calculate the thermal efficiency
The pressure ratio of a simple air-powered Rayton cycle is 12. Air enters the compressor at 295K and turbine at 1020 K. Since the net power of the cycle is 32MW, a) If the isentropic efficiency of the compressor and the turbine are 95%, b) If they are 80%, calculate the circulating air flow rate. Constant specific heat at room temperature will be accepted.
An air-standard Diesel cycle has a maximum temperature of 1800 K. At the beginning of compression, p1 = 95 kPa and Tq = 300 K. The mass of airis 12 g. For a compression ratio of 15, determine (a) the net work of the cycle, in kJ. (b) the thermal efficiency. (c) the mean effective pressure, in kPa.
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, 300 K, with a volumetric flow rate of 5 m3/s. The turbine inlet temperature is 1800 K.For a compressor pressure ratio of 6, determine:(a) the percent thermal efficiency of the cycle.(b) the back work ratio.(c) the net power developed, in kW.
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 air standard efficiency of an Otto cycle is 50 % and the ratio of specific heat is 1.5, then its compression ratio is.
An air-standard Diesel cycle has a maximum temperature of 2000 K. At the beginning of compression, p1 = 95 kPa and T1 = 300 K. The mass of air is 12 g. For a compression ratio of 20, determine:(a) the net work of cycle in kJ(b) the percent thermal efficiency.