i plan to make a compact condensor, 3 m of 3/8" copper tubes coiled. is it too short? im planning to liquid cool it, and by the way if i liquid cool the condensor to below ambient, maybe -40c for example, could the refrigerant condense? Im planning to use either R22 or R404A (maybe a mix). has anyone tried doing it. :confused: :confused:
Russell_hq
04-03-2005, 05:26 AM
How are you going to maintain -40ºC temperatures?
The colder you get the easier it is to condense.
If you go to -40ºC then there is not much point using R22 or R404a. You're better off using something that has a lower boiling point. e.g R410a, R23, R503, ethane etc
3m may or may not be long enough, i have no data for heat transfer coefficients, so its pretty much trial and error.