:
1)
L=1428 (3/)
F = 
2
=0,25*0,25*0,65=0,042
n = 
2)
L = 1092 (3/)
F= 
2
=0,25*0,25*0,65=0,04 2
n = 
3)
L = 180 (3/)
F = 
2
= 0,15*0,15*0,65 = 0,012
n = 
4)
L = 108 (3/)
F = 
2
=0,15*0,15*0,65=0,0152
n= 
5)
L = 1698 
F= 
2
=0,25*0,25 *0,65=0,042
n= 
:
1)
L = 1428 (3/)
F= 
2
F1=0,25*0,25*0,65=0,042
n=
2)
L = 546 (3/)
F= 
2
=0,2*0,2*0,65=0,03 2
n = 
3)
L = 157 (3/)
F= 
2
=0,15*0,15*0,65=0,0152
n= 
4) .
L = 200 (3/)
F = 
2
=0,15*0,15*0,65=0,0152
n=
5)
L=135 (3/)
F= 
2
=0,15*0,15*0,65=0,0152
n= 
6)
L = 72 (3/)
F = 
2
=0,15*0,15*0,65=0,0152
n= 
7)
L = 127,3
F = 
2
=0,15*0,15*0,65=0,0152
n=
8)
L = 76 (3/)
F = 
2
=0,15*0,15*0,65=0,0152
n = 
.
- , . .
1, 4156 3/. . , . , . , 4. 
=20 
V=0,2/ , 0,5/ .
1 . 1. . 1 1. L = 3509 3/.
. . , - , .
.
10904-90, .
.
.
:
|
|
|
1. :
Q=0,278*G*C(t-t),(), :
G- , /
t,t- , ˚
C=1,005 / 
- .
Q=0,278*3276*1,005(20-42)=56748
2. 
=3-10 
.
f, 
:
F. = 
(2), :
G- , /.
.
F. = 
= 3,03
3. , , .
4. , (/2˚), :
= 
(/2∙)
= 
5. :
W=3,6*Q/ 
(
-T0), (/), :
W= 
= 826
=4,19(*)-
6. , W, / :
w = W/3600* 
, :
=1000/ 
- .
- , .
w = 
= 0,2
7. (.2) K, / 
:
K=a* 
, :
(. .)
K= 
= 4,1
8. 
, 
=Q/K((
/2- 
)/2)
9. 
, , :
= / 
= 
= 2,8
10. 
, , :
=3 
=136
11. :
*100%
=8.8 
1:
.
30% 
,
, .
= 20
= -32
= 
=70
1. Q = 0,278 * 4571,6 * (20+32) = 66087
2. F. = 
= 0,25(2)
3. 243-090-050-1-4,0- 4, - 2 .
4. = 4156/3600*0,25 = 4.6 (/2˚)
5. 
* 66087/1000*(130-70)*0,00019*2 =2,9 /
6. K = 21,68* 
* 
= 43,44 /(
7. 
8. 
= 
2 243-090-050-1-4,0- 4 , .
:
 |  |
 |
.
- , , .
:
: H=150
: H=60
.
1:
1. :
L- , 
|
|
|
2. :
3.
0,22 
4. :
= 
*n=0,22*1,96=0,44
5. :
=60
6. :
- 2-3
7. :
= 
8. :
, .
=2450*0,44=1078 .
- 1 , /
9. , 1 :
L- , 
E- , 0,8
-
2978*0,001*0,8*16=38,12, 
10. :
Z= 
/ 
,
Z=1078/38,12=28 ()
28 .
.
. 1. 6001000 0,57 
35 .
