T,s- .
. 3. T, s :
,
, s- .3.
.
P'. P ( 1-2 . .3)
P' = P - ΔH, ,
P =(/750)105, , . .,
ΔH - .
P1 P ΔP2 ΔP3, , /2:
P1 = P Δ2·0,981·105, ,
P = P Δ3·0,981·105, .
.
ε :
, ;
= /cv ( = 1,4; ε = 0,528).
P = Pε;
P > P ε > ε - : P1 = P;
P ≤ P ε ≤ ε - : P1 = P.
, P1 = P , P>P. P≤P, P1=P=Po' ε.
, P1 .
6.1.3. (P > P)
) , /, 1-3 (. .3,) (6)
,
P = P1. P1 , P P = P;
f1 - , 2, d1=1,55 :
;
vO - , 3/, :
;
Po' :
,
vo. Po' , Po' vo .
|
|
) G G=f(Δ) .
.
6.1.4. (P ≤ P)
) , /, 1-3 (. .3,)
, (20)
ε (7).
) G = f(Δ) (. ). Δ=const, G. = const.