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圆筒面双层保冷层冷损失量计算

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Selected 保冷, 冷损.
  • 保冷
  • 冷损
  • 保冷
  • 冷损
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 依据:GB/T 8175-2008
圆筒面双层保冷层冷损失量
名称 单位 公式/来源 值
1 输入
2  管道/设备外表面温度,t ℃ -35
3  环境温度,ta ℃ 20
4  圆筒外径,Do m 5.3
5  内层保冷层厚度,δ1 m 0.1
6  内层保冷材料热导率,λ1 W/m·K 0.03
7  外层保冷层厚度,δ2 m 0.05
8  外层保冷材料热导率,λ2 W/m·K 0.03
9  保冷结构外表面对周围空气的换热系数,αs W/㎡·K 8.3
10 结果
11  内层保冷层外径,D1 m D1=Do+2×δ1 5.5
12  外层保冷层外径,D2 m D2=D1+2×δ2 5.6
13  单位冷损失,qL W/m 1 183.9775555
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