-
干空气物理性质表（
101.33Pa
）
温度
t
(
℃ )
密度
ρ
(kg/m 3 )
比热
c,
(kJ/kg? ℃ )
导热系数
λ
×
10 2
(W/m? ℃ )
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
120
140
160
180
200
250
300
350
400
500
600
700
800
900
1000
1100
1200
1.584
1.515
1.453
1.395
1.342
1.293
1.247
1.205
1.165
1.128
1.093
1.060
1.029
1.000
0.972
0.946
0.898
0.854
0.815
0.779
0.746
0.674
0.615
0.566
0.524
0.456
0.404
0.362
0.329
0.301
0.277
0.257
0.239
1.013
1.013
1.013
1.009
1.009
1.009
1.009
1.013
1.013
1.013
1.017
1.017
1.017
1.022
1.022
1.022
1.026
1.026
1.026
1.034
1.034
1.043
1.047
1.055
1.068
1.072
1.089
1.102
1.114
1.127
1.139
1.152
1.164
2.035
2.117
2.198
2.279
2.360
2.442
2.512
2.593
2.675
2.756
2.826
2.896
2.966
3.047
3.128
3.210
3.338
3.489
3.640
3.780
3.931
4.268
4.605
4.908
5.210
5.745
6.222
6.711
7.176
7.630
8.071
8.502
9.153
粘度
μ
× 10 5
(Pa?s)
1.46
1.52
1.57
1.62
1.67
1.72
1.77
1.81
1.86
1.91
1.96
2.01
2.06
2.11
2.15
2.19
2.29
2.37
2.45
2.53
2.60
2.74
2.97
3.14
3.31
3.62
3.91
4.18
4.43
4.67
4.90
5.12
5.35
0.728
0.728
0.723
0.716
0.712
0.707
0.705
0.703
0.701
0.699
0.698
0.696
0.694
0.692
0.690
0.688
0.686
0.684
0.682
0.681
0.680
0.677
0.674
0.676
0.678
0.687
0.699
0.706
0.713
0.717
0.719
0.722
0.724
普兰德数
Pr
湿空气的性质
温度
湿度
(kg/kg
水蒸气压
水分浓度
汽化焓
湿焓
湿容积
动粘度
湿热
水分扩
导热系数
散系数
( ℃ )
(kN/m
2
)
(kg/m 3 )
(kJ/kg)
(W/m · K)
(10
6
m
2
干空气
)
干空气
)
干空气
)
/s)
kJ/kg)
/s)
0
0.003821
0.6108
0.004846
2500.8
9.55
0.7781
13.25
0.0108
02380
22.2
(kJ/kg
(m 3 /kg
(10
6
m
2
(10 -3
2
0.004418
0.7054
0.005557
2495.9
13.06
0.7845
13.43
1.0120
0.02413
22.4
4
0.005100
0.8129
0.006358
2491.3
16.39
0.7911
13.61
1.0134
0.02427
22.6
6
0.005868
0.9346
0.007257
2486.6
20.77
0.7977
13.79
1.0149
0.02440
22.8
8
0.006749
1.0721
0.008267
2481.9
25.00
0.8046
13.97
1.0167
0.02454
23.1
10
0.007733
1.2271
0.009396
2477.2
29.52
0.8116
14.15
1.0186
0.02466
23.3
12
0.008849
1.4015
0.01066
2472.5
34.37
0.8187
14.34
1.0208
0.02478
23.6
14
0.010105
1.5974
0.01206
2467.8
39.57
0.8261
14.52
1.0233
0.02490
23.9
16
0.011513
1.8168
0.01363
2463.1
45.18
0.8337
14.71
1.0260
0.02500
24.2
18
0.013108
2.062
0.01536
2458.4
51.29
0.8415
14.89
1.0291
0.02511
24.5
20
0.014895
2.337
0.01729
2453.1
57.86
0.8497
15.08
1.0325
0.02520
24.8
22
0.016892
2.642
0.01942
2449.0
65.02
0.8511
15.27
1.0364
0.02529
25.2
24
0.019131
2.982
0.02177
2442.0
72.60
0.8669
15.46
1.0407
0.02537
25.5
26
0.021635
3.360
0.02437
2439.5
81.22
0.8761
15.65
1.0455
0.02544
25.9
28
0.024435
3.778
0.02723
2434.8
90.48
0.8857
15.84
1.0509
0.02508
26.3
30
0.027558
4.241
0.03036
2430.0
100.57
0.8958
16.03
1.0569
0.02556
26.6
32
0.031050
4.753
0.03380
2425.3
111.58
0.9065
16.22
1.0635
0.02561
27.0
34
0.034950
5.318
0.03758
2420.5
123.72
0.9178
16.41
1.0710
0.02565
27.4
36
0.039289
5.940
0.04171
2415.8
136.99
0.9297
16.61
1.0793
0.02567
27.8
38
0.044136
6.624
0.04622
2411.0
151.60
0.9425
16.80
1.0885
0.02569
28.3
40
0.049532
7.375
0.05144
2406.2
167.64
0.9560
17.00
1.0989
0.02569
28.7
42
0.055560
8.198
0.05650
2401.4
185.40
0.9706
17.20
1.1103
0.02569
29.1
44
0.062278
9.010
0.06233
2396.6
204.94
0.9862
17.39
1.1232
0.02566
29.6
46
0.069778
10.085
0.06867
2391.8
226.55
1.0030
16.59
1.1375
0.02563
30.0
48
0.078146
11.161
0.07553
2387.0
250.45
1.0213
17.79
1.1534
0.02558
30.5
50
0.087516
12.335
0.08298
2382.1
277.04
1.0410
17.99
1.1713
0.02552
30.9
52
0.098018
13.613
0.09103
2377.3
306.64
1.0626
18.19
1.1913
0.02545
31.4
54
0.10976
15.002
0.09974
2372.4
339.51
1.0861
18.39
1.2137
0.02536
31.9
56
0.12297
16.509
0.1091
2367.6
373.31
1.1112
18.59
1.2389
0.02526
32.4
58
0.13790
18.146
0.1193
2362.7
417.72
1.1405
18.79
1.2673
0.02514
32.9
60
0.15472
19.92
0.1302
2357.9
464.11
1.1721
18.99
1.2994
0.02501
33.4
62
0.17380
21.84
0.1419
2353.0
516.57
1.2073
19.19
1.3357
0.02487
34.0
64
0.19541
23.91
0.1545
2348.1
575.77
1.2467
19.38
1.3770
0.02471
34.5
66
0.22021
26.14
0.1680
2343.1
643.51
1.2910
19.57
1.4241
0.02455
35.1
68
0.24866
28.55
0.1826
2338.2
721.01
1.3412
19.76
1.4782
0.02437
35.7
70
0.28154
31.16
0.1981
2333.3
810.36
1.3986
19.94
1.5418
0.02418
36.3
72
0.31966
33.96
0.2146
2328.3
915.57
1.4643
20.01
1.6132
0.02399
36.9
74
0.36468
36.96
0.2324
2323.3
1035.60
1.5411
20.28
1.6986
0.02379
37.6
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