干空气主要物理参数(密度、比热容、导热系数、热扩散率、粘度)
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温度t 密度ρ
℃
-150 -100 -50 -20
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
kg/m3
2.817 1.984 1.534 1.365 1.252 1.247 1.243 1.238 1.234 1.229 1.224 1.220 1.215 1.211 1.206 1.202 1.198 1.193 1.189 1.185 1.181 1.177 1.172 1.168 1.164 1.161 1.158 1.154 1.149 1.146 1.142 1.138 1.134 1.131 1.127 1.124 1.120 1.117 1.113 1.110 1.106 1.103 1.099 1.096 1.092
10-2m2h-1)
1.450 2.880 4.730 5.940 6.750 6.799 6.848 6.897 6.946 6.995 7.044 7.093 7.142 7.191 7.240 7.282 7.324 7.366 7.408 7.450 7.492 7.534 7.576 7.618 7.660 7.708 7.756 7.804 7.852 7.900 7.948 7.996 8.044 8.092 8.140 8.191 8.242 8.293 8.344 8.395 8.446 8.497 8.548 8.599 8.650
2.924046 2.027648 1.553942 1.377285 1.263268 1.258223 1.254187 1.249142 1.245106 1.240061 1.235016 1.23098 1.225935 1.221899 1.216854 1.213419 1.2098602 1.2052879 1.2017223 1.198272 1.1946996 1.191124 1.1865328 1.1829504 1.179132 1.176093 1.173054 1.169002 1.163937 1.160898 1.156846 1.152794 1.148742 1.145703 1.141651 1.138612 1.13456 1.131521 1.127469 1.12443 1.120378 1.117339 1.113287 1.110248 1.106196
10-6Pa·s
8.730 11.770 14.610 16.280 17.160 17.220 17.279 17.338 17.397 17.456 17.514 17.574 17.632 17.691 17.750 17.799 17.848 17.897 17.946 17.995 18.044 18.093 18.142 18.191 18.240 18.289 18.338 18.387 18.437 18.486 18.535 18.584 18.633 18.682 18.731 18.780 18.829 18.878 18.927 18.976 19.025 19.074 19.123 19.172 19.221
50 60 70 80 90 100 120 140 160 180 200 250 300 350 400 500 600 800 1000 1200
1.056 1.025 0.996 0.968 0.942 0.916 0.870 0.827 0.789 0.755 0.723 0.653 0.596 0.549 0.508 0.450 0.400 0.325 0.268 0.238
10-6m2s-1
3.100 5.940 9.540 11.930 13.700 13.800 13.900 14.000 14.100 14.200 14.300 14.400 14.500 14.600 14.700 14.800 14.900 15.000 15.100 15.200 15.300 15.400 15.500 15.600 15.700 15.791 15.882 15.973 16.064 16.155 16.246 16.337 16.428 16.519 16.610 1来自百度文库.709 16.808 16.907 17.006 17.105 17.204 17.303 17.402 17.500 17.600
10-2W/(m·K)
1.163 1.617 2.035 2.256 2.373 2.381 2.389 2.397 2.405 2.413 2.421 2.430 2.432 2.446 2.454 2.461 2.468 2.475 2.482 2.489 2.496 2.503 2.510 2.517 2.524 2.530 2.535 2.541 2.547 2.552 2.559 2.564 2.570 2.576 2.582 2.589 2.596 2.603 2.610 2.617 2.624 2.631 2.638 2.645 2.652
干空气在压力为100kPa时的参数
比热容Cp 导热系数λ 热扩散率DT 动力粘度μ 运动粘度ν 密比热乘积
kJ/(kg·K)
1.038 1.022 1.013 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.010 1.010 1.010 1.011 1.011 1.012 1.012 1.012 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013
℃
-150 -100 -50 -20
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
kg/m3
2.817 1.984 1.534 1.365 1.252 1.247 1.243 1.238 1.234 1.229 1.224 1.220 1.215 1.211 1.206 1.202 1.198 1.193 1.189 1.185 1.181 1.177 1.172 1.168 1.164 1.161 1.158 1.154 1.149 1.146 1.142 1.138 1.134 1.131 1.127 1.124 1.120 1.117 1.113 1.110 1.106 1.103 1.099 1.096 1.092
10-2m2h-1)
1.450 2.880 4.730 5.940 6.750 6.799 6.848 6.897 6.946 6.995 7.044 7.093 7.142 7.191 7.240 7.282 7.324 7.366 7.408 7.450 7.492 7.534 7.576 7.618 7.660 7.708 7.756 7.804 7.852 7.900 7.948 7.996 8.044 8.092 8.140 8.191 8.242 8.293 8.344 8.395 8.446 8.497 8.548 8.599 8.650
2.924046 2.027648 1.553942 1.377285 1.263268 1.258223 1.254187 1.249142 1.245106 1.240061 1.235016 1.23098 1.225935 1.221899 1.216854 1.213419 1.2098602 1.2052879 1.2017223 1.198272 1.1946996 1.191124 1.1865328 1.1829504 1.179132 1.176093 1.173054 1.169002 1.163937 1.160898 1.156846 1.152794 1.148742 1.145703 1.141651 1.138612 1.13456 1.131521 1.127469 1.12443 1.120378 1.117339 1.113287 1.110248 1.106196
10-6Pa·s
8.730 11.770 14.610 16.280 17.160 17.220 17.279 17.338 17.397 17.456 17.514 17.574 17.632 17.691 17.750 17.799 17.848 17.897 17.946 17.995 18.044 18.093 18.142 18.191 18.240 18.289 18.338 18.387 18.437 18.486 18.535 18.584 18.633 18.682 18.731 18.780 18.829 18.878 18.927 18.976 19.025 19.074 19.123 19.172 19.221
50 60 70 80 90 100 120 140 160 180 200 250 300 350 400 500 600 800 1000 1200
1.056 1.025 0.996 0.968 0.942 0.916 0.870 0.827 0.789 0.755 0.723 0.653 0.596 0.549 0.508 0.450 0.400 0.325 0.268 0.238
10-6m2s-1
3.100 5.940 9.540 11.930 13.700 13.800 13.900 14.000 14.100 14.200 14.300 14.400 14.500 14.600 14.700 14.800 14.900 15.000 15.100 15.200 15.300 15.400 15.500 15.600 15.700 15.791 15.882 15.973 16.064 16.155 16.246 16.337 16.428 16.519 16.610 1来自百度文库.709 16.808 16.907 17.006 17.105 17.204 17.303 17.402 17.500 17.600
10-2W/(m·K)
1.163 1.617 2.035 2.256 2.373 2.381 2.389 2.397 2.405 2.413 2.421 2.430 2.432 2.446 2.454 2.461 2.468 2.475 2.482 2.489 2.496 2.503 2.510 2.517 2.524 2.530 2.535 2.541 2.547 2.552 2.559 2.564 2.570 2.576 2.582 2.589 2.596 2.603 2.610 2.617 2.624 2.631 2.638 2.645 2.652
干空气在压力为100kPa时的参数
比热容Cp 导热系数λ 热扩散率DT 动力粘度μ 运动粘度ν 密比热乘积
kJ/(kg·K)
1.038 1.022 1.013 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.009 1.010 1.010 1.010 1.011 1.011 1.012 1.012 1.012 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013 1.013