, (1.1)
t , 0C, t = 20 0C;
t , 0C, [1] .
t = -43 0C;
-
, 0C,
[2] = 4 0C;
- , /2 ,
= 8,7 /2
2 /.
,
= , (1.2)
- , 0C, [1]
= - 10,3 0;
z , , [1] z = 246 c
= 0 .
[3, . 3.1] = 7454 0 , = 4,009 2 /.
.
= 4,009 > = 1,81 2 /, = 4,009 2 /.
1.1.
1.1 |
= , (1.3)
- , ;
- , /0;
- , /0, [2] =0,07;
- , /2 0,
[2] = 23 /2 0
= = 217 220 .
.
k
, (1.4)
/ .
, :
= = 5,93 2 /,
= 0,56 2 /.
, , :
/ ;
/ ;
, (2.1)
- , ;
- , ;
- ,
;
- , , 10
1 2 .
, (2.2)
A , 2;
n , -
[2].
, (2.3)
- ,
, [3];
- ,
|
|
= 0;
, (2.4)
L , 3/, L = 3 3/ 1 2 ;
, / , = 1000 / ;
- , /3, [3] =1,496 /3.
3/.
2.1.
:
- : 6970 ;
- : 5060 ;
- : 7040
: = (6940 + + 7170) = 115080 .
, .
:
1) :
, (3.1)
T1c , 0, T1c = 130 0;
T1 , 0, T1=105 0;
T2 , 0,
T2 = 70 0
.
2) :
, (3.2)
-
, , = 1
.
3) :
, (3.3)
- , /,
, (7.1)
- , ;
- , = 35 ;
- , =4180 / .
= 2831 /
.
3.3 [4] 1 = 15 .
4) :
.
. 3.1.