.
. . . , , , .
, , (=230). :
. | - | ||||
ho | So | q | |||
1,7 , - 25 . | 1,7 | 3.6 | 234.59 | ||
1,7 , - 38 . | 1,7 | 3.6 | 404.80 | ||
1,7 , - 40 . | 1,7 | 3.6 | 259.55 | ||
, - 20. | 232,98 |
. .
6.
, . :
A=a3*F3+a*F,,
3 -
-
F3 -
F -
1.
F3= S0Ha
F=l*h
1=1+0.6 .
h=0,5+hoHa4+l,6=2,l+hoHa
2. 0,3
F3= l,3*1.5*n0
F=l*h
1=1+0.6 .
h=0,5+hoHa+l,3=l,8+hoHa
4. 1,7 F3=(l,7-h0Ha)*1.5*n0
F=l*h 1=1+0.6 h=0,5l,7=2,2
:
4 | 1,7 , - 25 . |
3=1; = 1 F3=(1,7-h)*1,5*n F3=(1,7-0,5)*1,5*6=10,8
F=l*h l=0,6*15=15,6 h =2,2
F=15,6*2,2=34,32
A=a3*F3+a3*F3=1*10,8+34,32*1=45,12
5 | 1,7 , - 38 . |
3=1; = 1,5 F3=(1,7-h)*1,5*n F3=(1,7-0,5)*1,5*6=10,8
F=l*h l=0,6*15=15,6 h =2,2
F=15,6*2,2=34,32
A=a3*F3+a*F=10,8*1+34,32*1,5=62,28
8 | 1,7 , - 40 . |
3=1; = 2 F=(1,7-h)*1,5*n F=(1,7-0,5)*1,5*6=10,8
F=l*h l=0,6*15=15,6 h =2,2
F=15,6*2,2=34,32
A=a3*F3+a*F=10,8*1+34,32*2=68,64
12 | , - 20 . |
3=1; = 0,6; F=S0=14,4
F=l*h l=0,6*15=9 h =2,1+0,5=2,6
F=15,6*2,6=40,56
A=a3*F3+a*F=1*14,4+40,56*0,6=38,74
. | */ | F3, | */ | F, | ,* | |
1,0 | 10,8 | 34,32 | 45,12 | 234.59 | ||
1,0 | 10,8 | 1,5 | 34,32 | 62,28 | 404.80 | |
1,0 | 10,8 | 34,32 | 68,64 | 259.55 | ||
1,0 | 14,4 | 0,6 | 40,56 | 38,74 | 232,98 |
|
|
:
min 12, Kmax 12, .. . , , , 20, 232,98.
1.
Q=11 . .
, =2.1 .
: ; v=0 /; 8 47 ; t=-18C;
.
:
. - 4 . 0.5 7 47 ().
:
4 .
:
1. :
Q1 = ki k3 k5 k7 Q0,
k1==0.18 -, (. 2)
3 =0.04 - , (. 2);
5 -=1.0 - , (. 6 )
7=0.3 - , (. 2) Q=34 000 -
1=0.18-0.04- 1.0-0.3-11000 = 23,76
2. :
Q2 = (1- ,) 2 3 4- 5- 6 7 Q /(h d),
2 = 0.025 - , (. 2)
4 =1.0- , (. 5)
7=1.0 - , (. 2)
6 =3.03 - , , ,
6 = 0,8,<ʖ ( ): = (hd)/(2 4 7) = (1.90.681)/(0.0251.01.0) = 51.76 .
N=4 ,
h = (H- 0.2) = 2.1 -0.2= 1,9; d = 0.681, / - (. 2)
> N, k6 = N '8 = 40'8 = 3.03
Q2= (1-0.18) 0.025 0.04 1.0 3.031,0 -(11000/(1,9 0.681)) = 21,123
3. (. 3) :
Q1 1; 1=33.96
Q2 2; 2=30.87
:
max+0.5 min=
=33.96+30.869*0.5=49.3945
4. 4 :
=N*V
v = 5/ - , . 4 6
= 53.03 = 15.15 .
< , .
5. :
|
|
SB=8.72 10 -3 2 φ= 8.72 10 -3 2439,81663360=7659,0722.
φ =360 - , ,
υ≤0,5/ φ=360
υ≤1/ φ=180
υ≤2/ φ=90
υ 2 φ=45
4 :
S=8*2*N0.2 S=0.081*229.5225*1.32=24.54
8 = 0.081 - - , : Sb >S