( ).
4.
4
, L, 3/ | ||
1. | Q/[c(t-t)ρ] | Q=ΣQi=Q+Q+Q+Q, Q=3,6; Q=Q΄n Q=3,6AF Q=3,6kP(1-η)/η W=W+W; W=ωn |
2. - | Q/[(i-i)ρ] W/[(d-d)ρ] | |
3. | /(-) | ==V√μ/ =d√/370 =mF/100 |
Q , / ()
Q , /
Q =3,6*3,4=12,24
,
= 2,5+0,6+0,3= 3,4
Q΄ , 150350; (5401250 /)
n ,
Q , /
n , .
n = 6
Q΄ = 6* 150=900 3240 /
Q , /;
, /(2) ( =4,5, =1/(2))
Q=3,6AF= 3,6* 4,5* 10= 162
Q , /;
, , ;
k , , , k=0,20,3
η ... ;
Q=3,6kP(1-η)/η = 3,6*((300*3))/(1-0,9)/1=3,24 /
Q = 12,24 +162+3,24+ 3,4+3240= 3417
W , /
ω , ( t=22280 ω=0,10,25 /)
W , /
W=ωn = 0,1*6=0,6
W , , /
W=W+W = 0+0,6=0,6
, , /
, , =12;
, .
5
, | 1,96105 | 1,97105 | 6,88105 |
0,121 | 0,166 | 0,182 |
V , , 3;
μ ( μ=118);
, 0 (273 +t0)
==V√μ/ = 1*0.182*126=103.3
() , /;
|
|
d , ;
, , =0,00020,0003;
, , ;
=d√/370= 12*0.0002(6.88*105/370)1/2=0.3253
;
12 , /2;
m , % (. .);
F , 1 , 2
6
, /2 | m, % | ||
100180 | 3510 | ||
805 | |||
6090 |
100 2, = 180*100=18000 /2, m = 75
=mF/100 =18000* 10*75/100= 135000= 135
, =1/();
t, t , , 0; ρ , /3;
Q/[c(t-t)ρ] = 3471/(1/(37-25)/0,435)=123,8
i, i , /
7
i, / | |
- | 49,6 46,7 47,0 41,6 53,8 55,0 |
d, d , / ;
W/[(d-d)ρ] =0.6/[(2.4-1.5)0.435]=1,5
, /3. 30% () .
, , /3.
, .
5.2 ,
, tn = 25 ; , in = 50,4 /, Qn = 3471 /=694 , W=0,6 /, V=100 3, , =3,5 .
:
1. :
t.=tn+(6.10C)=25+6.7=31.9 C
2. :
3. , :
ty=t.+Δ(-2)
: Δ , /
q<16.8 /3- Δ = 00.3
q=16.833.6 Δ= 0.3.1.2
q>33.6..43.4 Δ=0.81.5
Δ=0.9/, . q=57.34>33.6 /3, ty=31,9+0.9(4-2)=33,7C.
4. :
) :
e=QH/W=3471/0,6=5785 /.
5. /3 t ., :
tn:
|
|
rn=353/273+tn=1.2
tH: rn=353/273-tH=1.34; ry=353/273+ty=1.2
6. , , 3:
7. , 1/
1/
: Lmax , - , 3/
8. , , :
QB=cryV(tn-tH)K=0.28*1.2*100*(37-25)*11,3=4556,1
: , =0.28 (*/*)