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防止表面凝露的平面单层保冷层厚度计算
Selected 保冷.
保冷
保冷
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依据:GB/T 8175-2008
平面单层保冷层厚度
名称
单位
公式/来源
值
1
输入
2
管道/设备外表面温度,t
℃
-20
3
保冷层材料在使用温度下的热导率,λ
W/m·K
0.04
4
保冷层外表面与大气的换热系数,α
s
W/m²·K
8.14
5
环境温度,t
a
℃
20
6
环境露点温度,t
d
℃
5
7
结果
8
保冷层外表面温度,t
s
℃
t
s
=t
d
+3
8
9
保冷层厚度,δ
m
0.011466011
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