.
- 60*60. :, , , , , , , , . . 87,67, 88,32.
%
- .
. , 3000. . . 21.6 2 7.83 2 9.4 2 2.8 2 1.85 2. 10.8 2 ; 17,18 2 ; 7.83 2 1.85
.
. , DIN 975 M12
.
700 300.
.
200 .
. .
.
.
23-02-2003 , 23-101-2004 ,
, - ( ).
, t_ext = -34 ;
, t_int = 20 ;
, t_ht = -5.1 ;
, z_ht = 220 .;
.
, , n = 1;
, α_ext = 23 /(²);
|
|
, α_int = 8.7 /(²);
, Δt_n = 4 ;
, R_req = 3.333 ²/;
, λ, /(ºC) t,
1 ( 8486, 9463), 500 /³ 0.18 200
, ∑t = 200 ;
Rn=0,2/ 1.8 =11.11 (²)/;
, Rn = 11.11 (²)/;
.
.
200* 50 600 (). .
.
. , ( - , , ).
, - , .. . , , . , , - .
. , , , . 40-60 .
, . 40-60 , , . .
, .
, - . .
, , , , , . 50-75 , 40-60 . 6-8 10-14 . , . . .
|
|
.
. .
.
- | (, .). | - 2 | ||
, | I | 1. 7 3 2. 10*1500*1000 3. PERT MIDI 17*2 4. 1 5. 1500*1000*15 6. 1200*3200*10 7. 8. 9 | ||
, , , | I I | 1. 1285*193*8 2. 20 PERT MIDI 17*2 3. 3 4. 10*1500*1000 5. 3 6. 1500*1000*20 7. 8. 9 |
.
- 16289 86.
.
6629 - 88 .
24698 81 .
.
2- . : 150*200; 50*200; 150*150; 25100; 150
, , .
, 1:2 .
.
, , . .
.
:
H=3000
L=1800
:
=200
=200
.
1.) 1800
2.) n = 1800/200=9 ().
3.) n-1= 9-1=8 ().
4.) d=200*9=1800.
5.) 800
1) 1200
2.) n = 1200/200=6 ().
3.) n-1= 6-1=5 ().
4.) d=200*6=1200.
5.) 800
1.) n=4 ().
2.) n-1= 4-1=3().
3.) h=*n= 150*4=600.
4.)d= (n-1)= 250*3=750.
.
- | - | ||||
21.6 | - | - | - | ||
21.6 | - | - | - | ||
17.18 | - | - | - | ||
, | 13.1 | - | - | - | |
20.4 | - | - | - | ||
2.8 | - | - | - |