A gas-fired power plant operating on a Brayton cycle draws in 9.0 kg/s of atmospheric air, initially at 300 K and 100 kPa, in order to generate 1.7 MW of electricity. If the combustion chamber adds heat by burning 0.07 kg/s of fuel with a heating value of 46.1 MJ/kg, and as a result the air entering the turbine is at a temperature of 861 K, determine the back work ratio of this device to 2 decimal places. You may treat the added mass of the fuel as negligible. Take the cp of air to have a constant value of 1.005 kJ/(kg K) throughout the whole cycle, and its ratio of specific heats k can be assumed to take the value 1.4.
A gas-fired power plant operating on a Brayton cycle draws in 9.0 kg/s of atmospheric air, initially at 300 K and 100 kPa, in order to generate 1.7 MW of electricity. If the combustion chamber adds heat by burning 0.07 kg/s of fuel with a heating value of 46.1 MJ/kg, and as a result the air entering the turbine is at a temperature of 861 K, determine the back work ratio of this device to 2 decimal places. You may treat the added mass of the fuel as negligible. Take the cp of air to have a constant value of 1.005 kJ/(kg K) throughout the whole cycle, and its ratio of specific heats k can be assumed to take the value 1.4.
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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A gas-fired power plant operating on a Brayton cycle draws in 9.0 kg/s of atmospheric air, initially at 300 K and 100 kPa, in order to generate 1.7 MW of electricity. If the combustion chamber adds heat by burning 0.07 kg/s of fuel with a heating value of 46.1 MJ/kg, and as a result the air entering the turbine is at a temperature of 861 K, determine the back work ratio of this device to 2 decimal places. You may treat the added mass of the fuel as negligible. Take the cp of air to have a constant value of 1.005 kJ/(kg K) throughout the whole cycle, and its ratio of specific heats k can be assumed to take the value 1.4.
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