:
1. ?
2. ?
3. , .
1. , ∆t , :
∆t = [Q (W.. + 13% ∑KF)] / (L × 0,31 + ∑KF)
∆t=[145756(5785,8+1664,1)]/(27693,3×0,31+2174,45)=138306,1/10759,4≈12,80C
t = +10˚C
t = -7,8˚C
∆t = t - t = 10 (-7,8) = 17,80C
t. . = 100C 12,80C = 2,80C
, 2,80C
2. ?
( ).
t. . =-2,80C
t . = -7,80C
2,8 < 7,8 ( 5). :
t = t ( )
t = 10˚C ( ) - 5˚C = + 5˚C
+5˚C.
. 5˚C.
+10˚C | +15˚C |
+5˚C | |
+5˚C |
+5˚C. .
3. , .. . :
) . , 60% .
S() × 0,6 = S(.)
S(.) = 1386 ×0,6 = 831,6 2
) :
S(.) / = 831,6/200 = 4,158 2 /.
1 .
: 2,2 2 . . , :
S(.) / S( ) = 831,6/2,2 = 378 .
178 (378 . 200 .)
)
.. = 0,31×L×∆t. - 0,31×L×∆t.
..= 27693,3×0,31×17,827693,3×0,31×9,9=152811,684990,7=-67820,9
|
|
)
Q1 = (0,31×L×∆t) / N. ,
Q1
N.
Q1 =27693,3×0,31×17,8/7 = 21830,2
(N), , , 1 :
N = .. / Q1
N = 67820,9 / 21830,2 = 3,1 ≈ 3
. , 1 3,3 %, ( 85%) 1% 1,1 %.
:
2,7 , : 3,3% × 2,7 = 8,91%.
200 , , 12 , , 200 2400 . :
31 , , :
(213,84 × 31) 6629,04 , ( ) 19245 .
- :
) ;
) , ;
) .
, , - ( 14 "- , ").
, 1 860 . 67820,9:860 = 78,9 / . : -25/1 25
1 12 000 , : 67820,9: 12 000 = 5,65 , .