 
        
         
1-йопыт
47.551
54.5
55.555.5
55 tсх:= 54.5
54.5
5454
54
54
| 
 | Исходныеданные: | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | R1o := 3.34 10- 3 | 
 | 
 | ||
| 
 | b := 0.205 | м | 
 | 
 | ||||
| 
 | I1 := 120 | А | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | Вт | |||||
| 
 | tж := 23 | C | o | Cp := 2 | 2 | 4 | 
 | |
| 
 | 
 | 
 | 
 | м | K | |||
| 
 | Tж := 273.15 + tж | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | Вт | ||||
| 
 | 
 | 
 | 
 | 
 | - 2 | 
 | ||
| 
 | 
 | 
 | λ := | 
 | м К | |||
| 
 | g:= 9.81 | 
 | 
 | 2.59 10 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | Tсх:= 273.15 + tсх | 
 | - 6 | 
 | 
 | |||
| 
 | ν := | 15.06 10 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | Pr := 0.703 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 0.060 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 24.5 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 28 | 
 | ||
| 0.140 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 31.5 | 
 | 
 | 
| 
 | 0.240 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 32.5 | 
 | ||
| 0.340 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 32.5 | 
 | 
 | 
| 
 | 0.440 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 32 | 
 | 
 | |||
| 
 | 0.54 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | Co | |||
| t | х | := t | сх | - t | ж | = | 
 | |||||
| x:= | 0.64 | м | 
 | 
 | 
 | 
 | 31.5 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 0.74 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 31.5 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 0.94 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 31 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 1.14 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 31 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 31 | 
 | ||
| 1.340 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 31 | 
 | 
 | 
| 
 | 1.440 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
 
Rt0 :=
qхи:=
1 + (tсх -
Tсх
Cp 100
20)1.088 10- 3
| 4 | 
 | Tж | 4 | 
| 
 | - | 
 | = | 
| 
 | |||
| 
 | 
 | 100 | 
 | 
1.031.034
1.0381.039
1.039
=1.038
1.038
1.038
1.037
1.037
1.037
1.037
57.58266.965
76.657
79.48479.484
78.067
76.657
76.657
75.253
75.253
75.253
75.253
Вт м2
qхэл:=
qхк
I12 R1o
b
:= qхэл
Rt0 =
- qхи
241.634242.528
243.421
243.676243.676
243.549
243.421
243.421
243.293
243.293
243.293
243.293
184.053175.563
166.764164.192
164.192
=165.481
166.764
166.764
168.04
168.04
168.04
168.04
Вт м2
Вт м2
| 
 | 
 | 
 | 
 | 
 | 
 | 7.512 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 17.403 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 6.27 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 33.892 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 5.294 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 49.057 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 5.052 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 66.321 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 5.052 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 85.827 | ||||
| 
 | q | хк | 
 | 
 | 5.171 | 
 | Вт | 
 | 
 | 
 | |||||
| α := | 
 | = | 
 | 
 | 
 | 
 | (αх x) | 
 | 107.818 | ||||||
| х | 
 | t | х | 
 | 5.294 | 
 | 2 | К | Nu | жх1 | := | 
 | = | 
 | |
| 
 | λ | 130.819 | |||||||||||||
| 
 | 
 | 
 | м | 
 | 
 | 
 | |||||||||
| 
 | 
 | 
 | 
 | 
 | 5.294 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 151.26 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 5.421 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 196.734 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 5.421 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 238.592 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 5.421 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 280.451 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 5.421 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 301.38 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | - 3 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 3.119 10 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | - 3 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 3.085 10 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | - 3 | 
 | |
| 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 3.052 10 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | - 3 | 
 | |
| 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 3.043 10 | 
 | |
| 
 | 
 | 
 | 
 | 
 | - 3 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 3.043 10 | 
 | |
| 
 | 
 | 
 | 
 | 
 | - 3 | ||
| 
 | 1 | 
 | 
 | 
 | |||
| 
 | β:= | 
 | = | 3.047 10 | 
 | ||
| T | 
 | 
 | - 3 | ||||
| 
 | 
 | сх | 
 | 
 | |||
| 
 | 
 | 
 | 3.052 10 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | - 3 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 3.052 10 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | - 3 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 3.057 10 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | - 3 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 3.057 10 | 
 | 
| 
 | 
 | 
 | 
 | 
 | - 3 | 
 | |
| 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 3.057 10 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | - 3 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 3.057 10 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 7 | 
 | 
 | 
 | 
 | 
 | 6 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.052 10 | 
 | 
 | 
 | 
 | 7.392 | 10 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 8 | 
 | 
 | 
 | 
 | 
 | 7 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.336 10 | 
 | 
 | 
 | 
 | 9.391 | 10 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 8 | 
 | 
 | 
 | 
 | 4.731 | 8 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 6.73 10 | 
 | 
 | 
 | 
 | 10 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 9 | 
 | 
 | 
 | 
 | 1.345 | 9 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.913 10 | 
 | 
 | 
 | 
 | 10 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 4.147 109 | 
 | 
 | 
 | 
 | 2.915 | 109 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 9 | 
 | 
 | 
 | 
 | 
 | 9 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 3 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 5.389 | 
 | ||
| Gr | жк | := g β | t | x | 
 | = | 7.666 10 | 
 | Ra := Gr Pr = | 10 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||||
| 
 | 
 | х | 2 | 
 | 1.276 | 10 | 
 | 1 | жк | 
 | 8.972 | 9 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | ν | 
 | 10 | 
 | 
 | 10 | ||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1010 | 
 | 
 | 
 | 
 | 1.387 1010 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.973 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 4.044 | 10 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | 
 | 
 | 
 | 2.843 10 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 7.213 | 10 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | 
 | 
 | 
 | 5.07 10 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.171 | 11 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | 
 | 
 | 
 | 8.235 10 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.454 | 11 | 
 | 
 | 
 | 
 | 
 | 11 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | 
 | 
 | 
 | 1.022 10 | 
 | ||
 
| 56 | 
 | 
 | 
 | 
| 54 | 
 | 
 | 
 | 
| 52 | 
 | 
 | 
 | 
| tсх | 
 | 
 | 
 | 
| 50 | 
 | 
 | 
 | 
| 48 | 
 | 
 | 
 | 
| 460 | 0.5 | 1 | 1.5 | 
| 
 | 
 | x | 
 | 
| 8 | 
 | 
 | 
 | 
| 7 | 
 | 
 | 
 | 
| αх | 
 | 
 | 
 | 
| 6 | 
 | 
 | 
 | 
| 5 0 | 0.5 | 1 | 1.5 | 
| 
 | 
 | x | 
 | 
 
| 2-йопыт | Исходныеданные: | |
| 
 | Co | |
| 
 | tж := 24 | |
| 
 | I2 := 180 | А | 
| 
 | 73 | 
 | 
 | 49 | 
 | 
| 
 | 79.5 | 
 | 
 | 55.5 | 
 | 
| 
 | 
 | 
 | 
 | ||
| 
 | 86 | 
 | 
 | 62 | 
 | 
| 
 | 88.5 | 
 | 
 | 64.5 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 88 | 
 | 
 | 64 | 
 | 
| 
 | 86.5 | 
 | 
 | 62.5 | 
 | 
| tсх:= | 86 | 
 | tх:= tсх - tж = | 62 | 
 | 
| 
 | 
 | 
 | 
 | ||
| 
 | 85 | 
 | 
 | 61 | 
 | 
| 
 | 84 | 
 | 
 | 60 | 
 | 
| 
 | 
 | 
 | 
 | ||
| 
 | 83 | 
 | 
 | 59 | 
 | 
| 
 | 83 | 
 | 
 | 59 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
| 83.5 | 
 | 59.5 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 558.323 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 562.056 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 565.789 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 567.225 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 2 R | 
 | 
 | 
 | 
 | 566.938 | 
 | 
 | 
| 
 | I | 1o | 
 | 
 | 566.076 | 
 | Вт | ||
| qхэл:= | 2 | 
 | Rt0 | = | 
 | 
 | |||
| 
 | b | 
 | 
 | 565.789 | м2 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 565.215 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 564.64 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 564.066 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 564.066 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 564.353 | 
 | 
 | 
| 
 | 
 | 1.058 | ||
| 
 | 
 | 
 | 1.065 | 
 | 
| 
 | 
 | 
 | 
 | |
| 
 | 
 | 1.072 | ||
| 
 | 
 | 
 | 1.075 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 1.074 | 
 | 
| Co | Rt0 := 1 + (tсх - 20)1.088 10- 3 | 
 | 1.072 | 
 | 
| = | 
 | |||
| 
 | 
 | 
 | 1.072 | 
 | 
| 
 | 
 | 
 | 1.071 | 
 | 
| 
 | 
 | 
 | 1.07 | 
 | 
| 
 | 
 | 
 | 
 | |
| 
 | 
 | 1.069 | ||
| 
 | 
 | 
 | 1.069 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 1.069 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 57.582 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 66.965 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 76.657 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 79.484 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 4 | 
 | 
 | 
 | 4 | 
 | 79.484 | 
 | 
| 
 | Tсх | 
 | 
 | Tж | 
 | 
 | 78.067 | 
 | |||
| 
 | 
 | 
 | 
 | ||||||||
| qхи:= | Cp | 
 | 
 | 
 | - | 
 | 
 | = | 
 | 
 | |
| 
 | 
 | 
 | 
 | ||||||||
| 
 | 
 | 100 | 
 | 
 | 100 | 
 | 76.657 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 76.657 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 75.253 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 75.253 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 75.253 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 75.253 | 
 | 
В
м
 
qхк :=
Nuжх2
| 
 | 500.741 | |
| 
 | 495.091 | 
 | 
| 
 | 
 | |
| 
 | 489.132 | |
| 
 | 487.741 | 
 | 
| 
 | 
 | 
 | 
| 
 | 487.454 | 
 | 
| 
 | 488.009 | 
 | 
| qхэл - qхи = | 489.132 | 
 | 
| 
 | 
 | |
| 
 | 488.558 | 
 | 
| 
 | 489.387 | 
 | 
| 
 | 
 | |
| 
 | 488.813 | |
| 
 | 488.813 | 
 | 
| 
 | 
 | 
 | 
| 
 | 489.1 | 
 | 
| 
 | 
 | 23.674 | 
 | ||
| 
 | 
 | 
 | 48.219 | 
 | |
| 
 | 
 | 
 | 
 | ||
| 
 | 
 | 73.105 | 
 | ||
| 
 | 
 | 
 | 99.268 | 
 | |
| 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 129.392 | 
 | |
| 
 | (αх x) | 
 | 162.795 | 
 | |
| := | 
 | = | 
 | 
 | |
| λ | 194.946 | ||||
| 
 | 
 | 
 | |||
| 
 | 
 | 
 | 228.833 | 
 | |
| 
 | 
 | 
 | 296.026 | 
 | |
| 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 364.666 | ||
| 
 | 
 | 
 | 428.643 | 
 | |
| 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 457.029 | 
 | |
Вт м2
αх:=
| β:= | 1 | |
| Tсх | ||
| 
 | 
| 
 | 
 | 
 | 10.219 | ||
| 
 | 
 | 
 | 
 | 8.921 | 
 | 
| 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 7.889 | 
 | 
| 
 | 
 | 
 | 
 | 7.562 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 7.616 | 
 | 
| q | хк | 
 | 
 | 7.808 | 
 | 
| 
 | = | 
 | 
 | ||
| 
 | tх | 7.889 | |||
| 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 8.009 | 
 | 
| 
 | 
 | 
 | 
 | 8.156 | 
 | 
| 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 8.285 | 
 | 
| 
 | 
 | 
 | 
 | 8.285 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 8.22 | 
 | 
| 
 | 
 | - 3 | 
 | 
| 
 | 3.119 | 10 | 
 | 
| 
 | 
 | - 3 | 
 | 
| 
 | 3.085 | 10 | 
 | 
| 
 | 3.052 | - 3 | 
 | 
| 
 | 10 | 
 | |
| 
 | 3.043 | - 3 | 
 | 
| 
 | 10 | 
 | |
| 
 | 
 | ||
| 
 | 3.043 | 10- 3 | |
| 
 | 
 | 10- 3 | 
 | 
| 
 | 3.047 | 
 | |
| = | 
 | 10- 3 | 
 | 
| 
 | 3.052 | 
 | |
| 
 | 
 | 10- 3 | 
 | 
| 
 | 3.052 | 
 | |
| 
 | 3.057 | - 3 | 
 | 
| 
 | 10 | 
 | |
| 
 | 3.057 | - 3 | 
 | 
| 
 | 10 | 
 | |
| 
 | 3.057 | - 3 | 
 | 
| 
 | 10 | 
 | |
| 
 | 3.057 | - 3 | 
 | 
| 
 | 10 | 
 | |
Вт
м2 К
 
| 
 | 
 | 
 | 
 | 
 | 7 | 
 | 
 | 
 | 
 | 1.442 107 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 2.052 10 | 
 | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 8 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.832 108 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 2.606 10 | 
 | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 9 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 9.231 108 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 1.313 10 | 
 | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 9 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 2.625 109 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 3.733 10 | 
 | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 9 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 5.688 109 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 8.091 10 | 
 | 
 | 
 | ||||
| 
 | 
 | 3 | 
 | 
 | 1.496 1010 | 
 | 
 | 
 | 
 | 1.051 | 10 | 
 | 
| Grжк:= g β | tх | x | 
 | = | 
 | 
 | 
 | 
 | 
 | 10 | 
 | |
| 2 | 10 | Ra := Gr | Pr = | 
 | 
 | 
 | ||||||
| 
 | 
 | ν | 
 | 
 | 2.49 10 | 
 | 2 | жк | 
 | 
 | 10 | 
 | 
| 
 | 
 | 
 | 
 | 1.751 | ||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 10 | |||
| 
 | 
 | 
 | 
 | 10 | 
 | 
 | 
 | 
 | 1010 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 3.849 10 | 
 | 
 | 
 | 
 | 2.706 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 7.89 1010 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 5.546 | 10 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | |
| 
 | 
 | 
 | 
 | 1.407 1011 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 9.893 | 10 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | |
| 
 | 
 | 
 | 
 | 2.286 1011 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.607 | 11 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | |
| 
 | 
 | 
 | 
 | 2.836 1011 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.994 | 11 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 10 | 
 | |
| 
 | 90 | 
 | 
 | 
 | 
| 
 | 85 | 
 | 
 | 
 | 
| tсх | 80 | 
 | 
 | 
 | 
| 
 | 75 | 
 | 
 | 
 | 
| 
 | 700 | 0.5 | 1 | 1.5 | 
| 
 | 
 | 
 | x | 
 | 
 
| 
 | 
 | 11 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 10 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| αх | 9 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 8 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 7 0 | 
 | 
 | 
 | 
 | 0.5 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1 | 1.5 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | x | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | Оценка погрешности | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||||
| 
 | Ламинарныйрежим | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||
| 
 | 
 | 
 | 
 | 
 | 
 | nжх | 
 | 
 | εt := 1 | nжх:= | 
 | 
 | 
 | 
 | ||||
| 
 | Nuжх = c (Gr Pr) | εt | 
 | 
 | 0.25 | c := | 0.60 | |||||||||||
| 
 | Gr*Pr=10^3 -10^9 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 7 | 
 | 
 | 
 | 
 | 
 | 
 | nжх | 
 | 
 | 
 | 33.74 | 
 | ||
| Gr | 
 | := | 
 | 10 | 
 | 
 | 
 | Nu | 
 | := c Gr | 
 | = | 
 | |||||
| Pr1 | 
 | 
 | 
 | жх3 | Pr1 | ε | t | 
 | 
 | 
 | 
 | |||||||
| 
 | 
 | 
 | 9 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 106.697 | 
 | |||||
| 
 | 
 | 
 | 
 | 10 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| Турбулентный режим | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||
| εt := 1 | 
 | nжх:= 1 | 
 | c := 0.15 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 3 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 10 | 
 | 
 | 
 | 
 | 
 | n | жх ε | 
 | 
 | 
 | 587.23 | 
 | |
| Gr | Pr2 | := | 
 | 6 10 | 
 | 
 | Nu | жх4 | := c Gr | Pr2 | t | = | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 12 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 3 | |||||||
| 
 | 
 | 
 | 
 | 10 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1.5 10 | 
 | |
 
| 8 | 
 | 
 | 
 | 
| ln(Nuжх3)7 | 
 | 
 | 
 | 
| ln(Nuжх4)6 | 
 | 
 | 
 | 
| ln(Nuжх1)5 | 
 | 
 | 
 | 
| ln(Nuжх2)4 | 
 | 
 | 
 | 
| 3 | 
 | 
 | 
 | 
| 215 | 20 | 25 | 30 | 
| 
 | ln(GrPr1),ln(GrPr2),ln(Ra1),ln(Ra2) | 
 | |
