Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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H.W
1- A stationary gas-turbine power plant operates on a simple ideal
Brayton cycle with air as the working fluid. The air enters the compressor
at 95 kPa and 290 K and the turbine at 760 kPa and 1100 K. Heat is
transferred to air at a rate of 35,000 kJ/s. Determine the power delivered
by this plant (a) assuming constant specific heats at room temperature
and (b) accounting for the variation of specific heats with temperature.
2- A gas-turbine power plant operates on the simple Brayton cycle with
air as the working fluid and delivers 32 MW of power. The minimum and
maximum temperatures in the cycle are 310 and 900 K, and the
pressure of air at the compressor exit is 8 times the value at the
compressor inlet. Assuming an isentropic efficiency of 80 percent for the
compressor and 86 percent for the turbine, determine the mass flow rate
of air through the cycle. Account for the variation of specific heats with
temperature.
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Transcribed Image Text:H.W 1- A stationary gas-turbine power plant operates on a simple ideal Brayton cycle with air as the working fluid. The air enters the compressor at 95 kPa and 290 K and the turbine at 760 kPa and 1100 K. Heat is transferred to air at a rate of 35,000 kJ/s. Determine the power delivered by this plant (a) assuming constant specific heats at room temperature and (b) accounting for the variation of specific heats with temperature. 2- A gas-turbine power plant operates on the simple Brayton cycle with air as the working fluid and delivers 32 MW of power. The minimum and maximum temperatures in the cycle are 310 and 900 K, and the pressure of air at the compressor exit is 8 times the value at the compressor inlet. Assuming an isentropic efficiency of 80 percent for the compressor and 86 percent for the turbine, determine the mass flow rate of air through the cycle. Account for the variation of specific heats with temperature.
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