TITLE.PM5

GAS POWER CYCLES 675

dharm
\M-therm\Th13-5.pm5

p

23

pV = Cγ

p 2

p 1

14

V

Fig. 13.48. p-V diagram.

T 2 = T 1 ()rp

γ

γ

− 1

, where rp = Pressure ratio

Similarly

T

T

p

p

3

4

2

1

1

=

F

HG

I

KJ

−γ

γ

or T 3 = T 4 ()rp

γ

γ

− 1

3

2

1

4

s

T

Fig. 13.49. T-s diagram.