(VIII.27)
z = z(pr, Tr) ,
(. 55). c . (, , .).
nj j - , . %; j - .
() . , (p). , 6% (. 56).
, () (VIII.27), (. 83, 84). , p/(p)z(p) , .
75
, d = 200 l = 12 , , 0,018 , 4,41104 (0,45 /2); p1 =0,98105 (1 /2), 2 = 0,539105 (0,55 /2). , , 250 3/. = 0,98105 , t = 20C.
: k = 21,5 .
76
: r = 0,1 , = 50 /2, R = 750 , =100 /2.
. , ( ) rr.
, δ δ . 57 .
77
. = 9,8 (100 /2), = 6,86 (70 /2), Q = 8105 3/. Rk = 750 , r = 0,1 , h = 10 , m = 20%. , r = 50 .
|
|
: = 9,02 ; w = 3,3210-5 /; v = 1,6610-4 /.
78
, = 70 /2 pk =100 /2. Rk = 1000 , rc =10 .
: = 6,76 .
3 79
, , , h = 25 , k = 250 , μ = 0,014 , ρ = 0,650 /3, rc = 0,1 R = 900 , = 2,94 = 3,92 , .
: Qm = 607 /; Q = 0,935106 3/.
80
, . Rk = 1000, r = 0,1 , =100 /2, = 92 /2. .
.
r dr.
pk ,
|x|<1, .
,
, .
, , ,
, .
81
, - , (II.11).
. ,
,
x , .
.
,
,
.
x=0; P=P ; x=l; P=P ;
|
|
,
,
.
0 ,
,
.
,
,
, .
82
, .3.
. (VIII.26)
,
,
.
, D2, Dp2/Q, Q 2 . 4.
.
,
SQ = 5,475×105 3/.
(SQ)2 = 29,97×1010 6/2.
i yi Q a Dp2 /Qa i - .
. (VIII.28)
(VIII.28) i =l, 2,..., ( ),
. (VIII.29)
(VI 11.28) xi
. (VIII.30)
(VIII.29) (VIII.30) ,
,
.
,
xi = (Q ) i,
,
xiyi = (Dp 2) i ,
,
,
,
.
83
:
Q , , Q' a .
z m t = 38 .
, , p = 150 /2, = 100 /2, k = 0,1 , h = 10 , R = 1 , : r = 10 .
. -
. (VIII.31)
, r m ,
(VIII.32)
p/r = zRT
(VIII.33)
(VIII. 32) (VI 11.33),
,
(VIII.34)
pi i" i - ; zi mi z(p) m() i = (i'+ i") / 2.
(VIII.34)
(VIII.35)
zi z = z(pr, Tr),
r = p / p .,
r = / .,
,
,
a nj () j - (. 5); Snj =100
. 5
. = 45,69 /2, . = 222,2 ,
. 5.
m2 - m = 0,667 i - t = 38 (. . 56).
, (VIII.35) (. ).
.
z = 1,
m = 0,0175 c (, = (100+ 150)/2= 125 /2),
, 28%.
|
|
84
. .
83, = 150 /2, = 100 /2, R = 1000 , r = 0,1 , t = 38 , k = 0,1 , h = 10 .
.
(VIII.36)
/r = z (, T)RT r p
.
z (p , ) = 1
,
r (Vlll.36), r r R,
(VIII.37)
. . 6 83,
= 273+38 = 311 (. 7) (. 58).
(100 £ £150 ),
, , = = (. 8).
83, Q = 2,83×1063/ = 32,75 3/,
R/r r (c. . 8). . 59 lg(r/r) . 8.
85
, (. 9).
= 100 , = 50 , k = 0,12 , h = 8 , R = 750 , r = 10 , t = 38 .
. 83.
. Q = 1,77-106 3/.
86
R =10 , h = 15 , k = 400 , m = 1,02 ×, b = 4,64 10-10 -1, = 11,76 , = 7,35, r = 0,1 . .
, , .
. , Q Qm, .
, r =
( = 1 + + ),
. 0 = Qm
, , :
,
, .