:
;
;
.
, .
.
, . (V0), (P1) (T1) .
:
1 55,1 3/;
3 3/;
1=14 , 1=298;
6 ;
, 2 0,1 .
(F) , :
G = ρ W F = const,
G - , /;
ρ - , /3;
W - , /.
:
G = V0 ρ0,
V0 - , 3/;
ρ0 - , /3.
ρ = W F = V0 ρ0,
F = ,
F = ,
350 - , ;
3 - , 3/;
60 - 1 .
(/3) 99,6% 2 0,4% N2
ρ0 = (32 0.0996) / 22.4 + (28 0.004) / 22.4 = 1,428
- , ;
T - .
:
= 0,528 1 = 0,528 14 = 7,39 .
:
= (2 1) / ( + 1) = (2 298) / (1,4 + 1) = 248,3 .
/3.
:
W =
F :
F = 2.
:
d = 47,5 .
|
|
d = 47 .
:
F =
V2 - 2 2, 3/;
W2 - ( ), /.
(V2) (2 2) :
P2V2 = RT2.
(2) 2 = 1,1 :
V2 = RT2 / P2 = (26,5 144) / 11000 = 0,347 3/.
:
F =
d = d = 73 .
F F l , () β 10 :
l =
():
l = d / 2 = 47 / 2 = 23,5 .
l = 26 . ():
R = d = 47.
R = (0,65 - 1,5) d.
d l R . d = 58 .
:
l 0 = l + l = 26 + 126 = 152 .
, - (), (0), .
:
= 2,47 1 d = 2,47 14 0,047 = 1,64 ,
1 - , ;
d - , .