Consider a regenerative Brayton cycle operating with a pressure ratioof 8, where the air enters the compressor at 300 K and 100 kPa, whileit enters the turbine at 1060 K. Assume that both the compressor andturbine are isentropic, that specific heats vary with temperature, andthat the regenerator has an effectiveness of 74%. Round allintermediate calculations to three decimal places. What is the enthalpyat the compressor outlet in kJ/kg? What is the enthalpy at the turbineoutlet in kJ/kg? What is the enthalpy at the entrance to the heatexchanger that accepts external heat kJ/kg? How much external heatis supplied to the cycle in kJ/kg? Round your answer to two decimalplaces. What is the enthalpy at the entrance to the heat exchangerthat rejects heat to the surrounding in kJ/kg? How much heat isrejected to the surroundings in kJ/kg? How much net work isproduced in kJ/kg? What is the thermal efficiency as a percentage (0%-100%)? What is the thermal efficiency as a percentage (0% - 100%) ifthere was no regenerator?

Answered: Image /qna-images/answer/2ffd3abf-fbdd-44a3-a2a6-c39f02e908a8.jpg

Answered: Consider a regenerative Brayton cycle…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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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.
The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are 80 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 6821 kPa and the temperature is 1950 K. Step 1 Determine the compression ratio. r = i Save for Later Attempts: 0 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. Ston 3
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