tm
v^2)/2
阻力预留10%预量)
0 1 2 3 4 5 6 8 10 15 20
长度 1.0/250压降温降
01250离心玻璃棉244.57
10.91244.5岩棉管壳244.45
20.81238.8硅酸铝243.46
30.72233.2
40.62227.2
50.53221.4
60.43215
8 1.0/250℃ 5.5
10 1.0/300℃ 6.5
15 1.0/350℃7
20 1.0/400℃9.4
0.018482
5.48.9
6.49
7.49.2
8.69.7
离心玻璃棉λ=0.031+0.00017×tm
岩棉管壳λ=0.0314+0.00018*tm
硅酸铝λ=0.042+0.0002*tm
硬质聚氨酯泡沫λ=0.024+0.00014*tm 查水蒸气动力粘度表
402.2667
859799.41117739