Looking for low-temperature heat transfer oil (-100°C) (if one with a temperature range of -100~100°C is available, it can be used for both high and low temperatures)
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Our company has a set of ultra-low temperature equipment that primarily relies on heat exchange between liquid nitrogen and heat transfer oil, but we are short of low-temperature heat transfer oil. The originally designed temperature range was -100~+100°C, with the main consideration being factors such as the flash point of the heat transfer oil, which should be above 60°C. Thank you:handshake
The fluid in the reactor jacket; this heat transfer oil can be used to raise or lower the temperature. The temperature range is from -100 to 100°C. Additionally, the flash point of the heat transfer oil must be high; otherwise, there could be issues related to explosion prevention and similar things :)
Liquid nitrogen is at -195°C, so heat exchange with heat transfer oil is difficult to control, right? Is there a suitable coolant that does not solidify or becomes highly viscous at -100°C and lower temperatures, and that also allows for switching to heating mode? If you know of such a good medium, please recommend it; I need to use this technology as well
Previously, we chose an appropriate heat transfer oil, which was imported; 1800 liters of such oil requires around 28 watts of power. It is imported, but its flash point is below 60°C, meaning it belongs to the category of Class B solvents and falls under the scope of pressure pipelines. I now want to switch to a solvent with a higher flash point.
What is this? Is it some organic substance like Freon? Will it solidify at -120°C?
-100~100℃, why is heat transfer oil needed?
Use heat transfer fluid, not heat transfer oil.
Thermal conductive paste is useless; it’s not high-temperature thermal oil anyway
In our factory, the cryogenic heat transfer medium is ethanol, which can reach -70°C. However, the freezing point of ethanol is around -110°C; it is therefore necessary to maintain a low temperature to prevent solidification, as this would block the heat exchanger. Ethanol cannot be used at high temperatures – it boils at 78°C. It can still be used under sealed and pressurized conditions, but there is a risk of leakage at high temperatures. The workshop previously used a high-temperature water heater that could heat water to 200 degrees for heat exchange
It’s still not very feasible, I guess. Thank you so much!