30. .
.
1. .
2. . = . k, , p = f(k) .
3. , :
) =, ;
) >, , , .
4. , : ρ.; P P = an/kn ( n ), ; k, k.. ρ > ρ ., > >P , k<k., , . . .
ρ < ρ < ρ ., 1<<., k.<k<1, , .
, . .
() ρ , P ,k .
- , . r, P, k , . ρ , , k.; .
, , .
Pk, Pk, kk k , k p, k. k.
( )
ρ ρ
|
|
|
1 , ρ = f(H) ρ = f(H) , ρ ρ (ρ > ρ ) , , ρ ρk. ρ ρ
2 ρ . ρ , ρ , pa ( << ). , ρ .
ρ . . r/r=2 , . , .
1 , ρ1, ρ2
2 ( ) ρ ,
.
2 :
, , , , . .
ρ ρ ρ* *, . , . ρ . - ρ ρ () () . ρ .
|
|
|
Δt () ρ ( 56).
. ρ , ( 58).
, .
3 :
. . (ρ) - - :
1) ρ ρ : ρ=* ρ.
2) ρ ρ: ρ ≈ρ( ), ρ> ρ ( ), , . -
ρ> ρ(),- .P= ρ/ ρ
,- min - ( ) -: >, <
: ρ>ρ>ρ, ρ< ρ, >. . ρ*=1,0 ( )
:1) ,2) ρ .
-
- . - /:
=f(); = f();= f();ʒ-
ʒ= f(), ʒ= f(), ʒ= f()
:
| * | ||
| 2200-2204 | ||
| 2204-2208 | ||
| 2208-2210 | ||
| 2210-2211 | + | |
| 2211-2212 | ||
| 2212-2213 |
. , , , +. / . Ρ=3,8 . .
2 . . . Qδ=S*h*K***ρ.
S .
.
-.
-, W. - (-) , .
-n- τ>300 - , <250 -.
|
|
|
- () Inn.
- , .
-3 . .
=30-60.
(), .
1) -3
W , , W1, .
2) -3
W1 ,
h., ( ) , W2, .
3) -3.
ρc (20ºC ), . W3,
4) .
W3 (..6). W3 250 / W4 .
) -3.
.
W=+W,
W- .
= W- W
∆T ,
>6% - →
+1) . ,2) - , 3)
-1)
2)d, h
