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GB 50264 圆筒型双层绝热结构冷、热损失量

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Selected 绝热.
  • 绝热
  • 绝热
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 依据:GB 50264-2013
圆筒型双层绝热结构冷、热损失量
名称 单位 公式/来源 值
1 输入
2  管道/设备外表面温度,T0 ℃ -35
3  环境温度,Ta ℃ 20
4  圆筒外径,D0 m 1.3
5  内层绝热层厚度,δ1 m 0.1
6  内层绝热材料热导率,λ1 W/m·K 0.03
7  外层绝热层厚度,δ2 m 0.05
8  外层绝热材料热导率,λ2 W/m·K 0.03
9  绝热结构外表面对周围空气的换热系数,αs W/㎡·K 8.3
10 结果
11  内层绝热层外径,D1 m D1=Do+2×δ1 1.5
12  外层绝热层外径,D2 m D2=D1+2×δ2 1.6
13  单位热/冷损失,Q W/㎡ 公式 5.4.3-3 -9.72155409
14  单位热/冷损失,q W/m 公式 5.4.3-4 -48.86586066
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