Answered: ideal air-standard Brayton cycle…

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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13) An ideal air-standard Brayton cycle operating at steady state produces 50 MW of power. Operating data at principal states in the cycle are given in the table below. The states are numbered as in the figure below.

Determine:

(a) the mass flow rate of air, in kg/s.

(b) the rate of heat transfer, in kW, to the working fluid passing through the heat exchanger.

(c) the percent thermal efficiency.

An ideal air-standard Brayton cycle operating at steady state produces 50 MW of power. Operating data at principal states in the cycle
are given in the table below. The states are numbered as in the figure below.
State p (kPa) T(K) h (kJ/kg)
1
100
300
300
2
1000
574.1
579.7
1000
1450
1574
4
100
818.4
841.8

Heat enchanger
Compressor
Turhine
Heat exchanger
Determine:
(a) the mass flow rate of air, in kg/s.
(b) the rate of heat transfer, in kW, to the working fluid passing through the heat exchanger.
(C) the percent thermal efficiency.

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