What type of heat exchanger is suitable for heat exchange between air and air at low temperatures (-143°C)?
Thread Content
I would like to ask the experienced colleagues: under low-temperature conditions of -143°C, for heat exchange between air and air (which falls under the category of regenerative heat exchangers), which type of heat exchanger is more suitable, given an air flow rate of 50 m3/h? Freezing dehumidification is carried out before air enters the heat exchange system, but moisture still remains in the air; at low temperatures this moisture freezes. Plate-fin heat exchangers are currently being used for this purpose!
Since the heat transfer coefficient of gases is low, it is appropriate to use a plate-fin heat exchanger
Thank you~ I also have a question: how is the issue of ice formation at low temperatures usually handled? Normally, I am only exposed to heat transfer under conditions of normal temperature to high temperature; low-temperature conditions are something I encounter for the first time. :handshake