Question 2 A Brayton cycle with regeneration using air as the working fluid has a pressure ratio of 10. The minimum and maximum temperatures in the cycle are 32°C and 1067 °C. Assuming an isentropic efficiency of 81% for the compressor and 86 % for the turbine, and an effectiveness of 75 % for the regenerator, also assuming a source temperature of 1600 K and a sink temperature of 300 K. Determine (a) the thermal efficiency of this cycle, (b) the exergy destruction associated with the combustion chamber, (c) the exergy of the exhaust gases at the exit of the regenerator, and (d) the second-law efficiency of this cycle. Use variable specific heats for air.

Question 2 A Brayton cycle with regeneration using air as the working fluid has a pressure ratio of 10. The minimum and maximum temperatures in the cycle are 32°C and 1067 °C. Assuming an isentropic efficiency of 81% for the compressor and 86 % for the turbine, and an effectiveness of 75 % for the regenerator, also assuming a source temperature of 1600 K and a sink temperature of 300 K. Determine (a) the thermal efficiency of this cycle, (b) the exergy destruction associated with the combustion chamber, (c) the exergy of the exhaust gases at the exit of the regenerator, and (d) the second-law efficiency of this cycle. Use variable specific heats for air.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.

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THERMODYNAMICS

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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