Questions regarding the calculation of thermal insulation layers
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According to GB50264, the appendix contains a table showing the maximum allowable heat loss; however, the lowest temperature listed there is 50°C, at which the maximum allowable heat loss is specified. My equipment operates at only 37°C – so how can I determine the maximum allowable heat loss in my case? Without this maximum allowable heat loss value, it’s impossible to calculate the thickness of the insulation layer.
Is there really no one who can answer questions like Hai Chuan’s these days? Or does it have to involve money?
This means that after insulation, the heat emitted from the surface of the pipe should not exceed a certain value. Your surface temperature is only 37°C, and the heat dissipation is generally below the required 50°C; therefore, a value of 50°C can be used as a reference. You can also calculate the thickness of the insulation layer based on the surface temperature of the insulation layer that you want to achieve after insulation. By the way, the device at 37°C shouldn’t need insulation, right? Are there any special considerations? Condensate water? Heat loss?
50° will do; the calculation results will be very similar.
The temperature difference between the devices must not exceed 2°C due to the special requirements of the process.
If higher precision is required, it is possible to consider adding some extra material to thicken the insulation layer, thereby minimizing heat exchange with the environment. In addition, heat dissipation to the environment in winter conditions and the heating effect of high temperatures in summer on the pipes must also be taken into account.