Insulation layer of methanol scrubber tower
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Today, at the installation site, it was found that the insulation material for the washing tower is polyurethane, while that used for the H2S concentration tower is foam glass. Why are different materials used for these two towers? Could it be related to the temperature levels of the towers? Which material gives a better result? Thank you all
Species, Performance Parameters, Operating Temperature (°C), Construction Density (kg/m3), Compressive Strength (MPa), Thermal Conductivity (at room temperature) W/(m·K): Foam glass –200～500, ＜180, ＞0.7, 0.050; Polyurethane foam plastic –196～130, ＜65, ≥0.5, 0.035. I hope this is useful to you! This post was last edited by hnwxx2002 on 2009-3-4 08:09.]
According to the information provided from upstairs, the thermal conductivity of foam glass is higher than that of polyurethane foam plastic! According to the formula for calculating the heat loss (or gain) of the insulation layer, it is primarily related to the temperature of the inner surface of the insulation layer (which corresponds to the temperature inside the tower), the ambient temperature, and the thermal conductivity, assuming that the thickness of the insulation layer remains constant. Therefore, to ensure the same heat loss, two different insulation materials were selected based on calculations! ! Personal opinion, for reference only! !
I learned it~~ I didn’t know what attribute it was before