53.164.468.6489523atio of 3 (i.e 581613659ge turbineir is 10 barreases its twhich increassure ratio18.721.424.430.237.944.5= 0.287 kJ/k683711744773808er system as follre of the air is 4K.> first turbine hae back up to 90pic efficiency of!) in kW:12>erfectly isentropic (i.e. T') in K: Compressed air with a flowrate of 6 kg/min flows through a two-stage turbine and heat exchanger system as follows:• At the entrance to the system (point 1), the pressure of the air is 10 bar and the temperature of the air is 459 K.• From 1-2 the air passes through a heat exchanger which increases its temperature to 902 K.• From 2-3 the air passes through a turbine, with a pressure ratio of 3 (i.e. P₂/P₂²p=3). This first turbine has an isentropic efficiency of 65%.• From 3-4 the air passes through a second heat exchanger, which increases its temperature back up to 902 K.• From 4-5 the air passes through a second turbine with a pressure ratio of 3 and an isentropic efficiency of 90%.The properties of air are: cp = 1.005 kJ/kgK, cv = 0.718 kJ/kgK, R = 0.287 kJ/kgK, and y = 1.4.Select the correct value for each of the following values:a. The heat transfer to the air in the first heat exchanger (i.e. Q) in kW:12b. The temperature of the air leaving the first turbine if it were perfectly isentropic (i.e. T¹_ ) in K:3c. The actual temperature of the air leaving the first turbine (i.e. T)in K:d. The actual temperature of the air leaving the second turbine (i.e. T_¸) in K:e. The magnitude of the net rate of work transfer from the system in kW:f. The change in specific entropy of the air between the start and end of the system in J/kgK:<

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Answered: 18.7 21.4 24.4 30.2 37.9 44.5

Engineering

Mechanical Engineering

18.7 21.4 24.4 30.2 37.9 44.5

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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