Electronics > Projects, Designs, and Technical Stuff
guidebook on medium freon compressors interfacing?
coppercone2:
I am kinda thinking about some kind of high capacity outdoors located pump/tank/radiator combo that would do some kW of cooling at a decent flow to cool various power electronics things for a power electronics lab (i.e. heat loads). It would have 2x flow meter and 2x pressure meter and differential temperature in addition to a pump controller and a tank. I wonder if you can mount it to a overhang or something. Something that does not look like a industrial site. Maybe built to look like a wall extension.
If you had that capability you can add cooling jackets to vacuum pumps and other things too. And put little heat exchangers behind equipment that generates lots of heat to keep the room cool. Like a rack of commercial equipment with a suction fan. Then you can run stock linear high power supplies.
It would beat the shit out of a extraction vent (omfg don't you hate that corrugated tubing shit?) if you need to move something around, especially if you put a grid of metal plates on the ceiling to which you can attach magnetic hooks if necessary to suspend heat extraction piping.
But what if you can also add a compressor and a heat exchanger to the system and used chilled coolant (i don't want to run freon lines).
I have a litron heat exchanger I was going to use for something, with quite a high capacity, brazed brass meant for inert fluid transfer.
Does anyone have a guidebook on how to select a compressor to interface with a heat exchanger? (an advanced one that assumes you know how to setup a leak free clean freon system).
I am not interested in peltiers for this application. It would be a habbitat thing.
coppercone2:
do you just need to build the system to match some kind of pressure differential across the compressor? and thermal differential. DO you need some kind of flow measurement? I assume the heat exchanger metals need to conform to some kind of differential too so you don't freeze destroy them. If the differential are met during operation based on the geometry of the compressor it means the pump flow is adequate?
I don't understand the freon heat exchanger too much. It is a four inlet network. Are you supposed to let the gas vaporize in it? Or is liquid freon supposed to pass and expand later? I assume it would flood/foam out if there was boiling liquid in such a small area. So you ensure there is no phase change in the heat exchanger in a freon/liquid interface?
What is a suitable compressor type for something in the 10kW cooling range? Are home HVAC units capable of such operation?
its something like this, i got a slam dunk deal on it a while back
http://www.directindustry.com/prod/hofmann-beijing-engineering-technology-co-ltd/product-200015-2034350.html?utm_source=ProductDetail&utm_medium=Web&utm_content=SimilarProduct&utm_campaign=CA
coppercone2:
is it a specific gas that requires licensing or just the concept of a compressor?
it would be used to cool a liquid loop. does that qualify as HVAC?
coppercone2:
--- Quote from: blueskull on January 15, 2019, 11:13:43 pm ---
--- Quote from: coppercone2 on January 15, 2019, 11:11:31 pm ---is it a specific gas that requires licensing or just the concept of a compressor?
--- End quote ---
Common refrigerants require a license to buy, unless you get those automotive ones from Walmart.
Even those automotive ones have warnings, and generally, regardless of type, you are not supposed to release refrigerants to air, so you need refrigerant pumps and a three way gauge.
As for the compressor part, that's OSHA's business to define what is dangerous what is not. Consult your local government.
--- End quote ---
its not a buisness, is OSHA still relevant?
What is the downside other then increased power cost? It would all be outside and elevated (the gas system). I know its dangerous to put indoors or near a structure that can accumulate the gas. You would use the proper equipment to charge the system as not to cause enviromental damage. A simulant could be used at increased pressure to check for leaks.
coppercone2:
the idea is to use a compressor connected to a heat exchanger to cool a water loop so that freon is not run into a lab. Like with peltiers but not so enviromentally unfriendly. But also with a real professional heat exchanger not dipping a refrigerator into a barrel. I wanted it compact. And to minimize tank size. And with a custom radiator for the compressor thats built nice/wide surface area/easy to clean. Like do it with real parts in a custom engineered solution to a nice form factor with high quality throughout.
Navigation
[0] Message Index
[#] Next page
Go to full version