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GB 50264 圆筒型控制热、冷损量的双层绝热层厚度(面积)

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Selected 绝热.
  • 绝热
  • 绝热
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 依据:GB 50264-2013
圆筒型控制热、冷损量的双层绝热层厚度
名称 单位 公式/来源 值
1 输入
2  设备/管道外径,D0 m 1.52
3  管道/设备外表面温度,T0 ℃ 100
4  内层绝热材料导热系数,λ1 W/m·K 0.03
5  内层绝热层外表面温度,T1 ℃ 50
6  外层绝热材料导热系数,λ2 W/m·K 0.04
7  绝热层外表面与周围空气的换热系数,αs W/m²·K 8.14
8  环境温度,Ta ℃ 20
9  绝热层单位热/冷损失,[Q] W/㎡ 32
10 结果
11  内层绝热层厚度,δ1 m δ1=(D1-D0)/2 0.043841717
12  内层绝热层直径,D1 m 公式 5.3.4-2 1.607683434
13  外层绝热层厚度,δ2 m δ2=(D2-D1)/2 0.031958943
14  外层绝热层直径,D2 m 公式 5.3.4-1 1.67160132
15  绝热层总厚度,δ m δ=δ1+δ2 0.07580066
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