In turbochargers a turbine is directly connected to a compressor. The power harvested by the turbine is used to power the compressor. In the figure below a turbine runs on steam and powers a compressor on air. Air can be considered a perfect gas with k = 1.34, R = 0.28 kJ/kgk and cp = 1.02 kJ/kgK. The air enters the compressor at p₁ 1bar, T₁ = 300K and a mass flow 5.9 kg/s and exits at p2 = 5.2 bars. The steam enters the isentropic turbine at P3 = 2 MPa, T3 = 320°C and exits at p4 = 100 kPa. rate of mdot = State 2 Isentropic Compressor State 1 Air - perfect gas T₁ = 300K P₁= 1 bar W Answer: tubine State 4 Isentropic Turbine State 3 Steam T3=320°C P3= 2MPa What is the enthalpy at state 2? Please enter your answer in kJ/kg

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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In turbochargers a turbine is directly connected to a compressor. The power harvested by the
turbine is used to power the compressor. In the figure below a turbine runs on steam and
powers a compressor on air. Air can be considered a perfect gas with k = 1.34, R =
= 300K and a mass flow
0.28 kJ/kgk
=
1bar, T₁
=
and Cp
1.02 kJ/kgK. The air enters the compressor at p₁
rate of mdot = 5.9 kg/s and exits at p2 = 5.2 bars. The steam enters the isentropic turbine at
P3 = 2 MPa, T3
=
320°C and exits at p4 = 100 kPa.
State 2
Isentropic
Compressor
State 1
Air-perfect gas
T₁ = 300K
P₁ = 1 bar
W
Answer:
tubine
= ?
State 4
Isentropic
Turbine
State 3
Steam
T3=320°C
P3= 2MPa
What is the enthalpy at state 2? Please enter your answer in kJ/kg
Transcribed Image Text:In turbochargers a turbine is directly connected to a compressor. The power harvested by the turbine is used to power the compressor. In the figure below a turbine runs on steam and powers a compressor on air. Air can be considered a perfect gas with k = 1.34, R = = 300K and a mass flow 0.28 kJ/kgk = 1bar, T₁ = and Cp 1.02 kJ/kgK. The air enters the compressor at p₁ rate of mdot = 5.9 kg/s and exits at p2 = 5.2 bars. The steam enters the isentropic turbine at P3 = 2 MPa, T3 = 320°C and exits at p4 = 100 kPa. State 2 Isentropic Compressor State 1 Air-perfect gas T₁ = 300K P₁ = 1 bar W Answer: tubine = ? State 4 Isentropic Turbine State 3 Steam T3=320°C P3= 2MPa What is the enthalpy at state 2? Please enter your answer in kJ/kg
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