Have you ever used ethylene glycol as the heating medium? Is there any problem with heating to 150℃?
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Have you ever used ethylene glycol as the heating medium? Is there any problem with heating to 150℃?
I have only used ethylene glycol aqueous solution as refrigerant, come and learn* one time.
It was found that the boiling point of ethylene glycol is 197°C, the vapor pressure at 150°C is 0.02Mpa (absolute pressure), and the flash point is 111°C, indicating a high risk of fire. Airtight nitrogen sealing can be achieved
For heating, use thermal oil, and for cooling, use ethylene glycol aqueous solution. I have never seen you use it this way. . . Share?
The main temporary use of heat transfer oil is too expensive. Ethylene glycol is now cheap.
The cost of thermal oil is too high. Ethylene glycol is now cheap and can be used temporarily.
Personally, I don’t think it’s reliable. If the ethylene glycol aqueous solution is directly heated to 100°C, won’t the water evaporate? Isn't this a bit like distillation? . . Car antifreeze is also an ethylene glycol solution. Although the concentration is not high, the boiling temperature is not high, right? My humble opinion.
Found it, it should be impossible. http://www.doc88.com/p-7919531315343.html
High risk, you can use refrigerant, but it is not recommended if the temperature is too high