Try surpluscenter.com Or strip one out of an old window AC unit or a freezer or refrigerator or a dehumidifier. All of them have small efficient compressor units that are easy to rework into something else! Hit a few garage sales and see what you can find!
Look into an absorption type fridge which runs on propane. They do make portable ones but a new one would be expensive:
https://www.electro-tech-online.com/custompdfs/2009/06/rc4000-specs-1.pdf
You could scavenge one from an old RV, but be careful about mixing beer and homemade propane devices.
Or you could find a cold mountain stream just like you see in the beer commercials! Remember to pick up your empties after picking up the babes.
Oh, and I just love how people are no longer surprised of craziness here. I mean surely you see a lot of people going camping with a cooler that has built in phase change system.
The fridge I posted the link to burns the propane to make things cold. It uses absolutely NO electricity to cool. Here is a wiki link that explains the concept:Well most domestic fridges use propane for the refrigerant these days.
I dont post 3/4's of the day to day stuff I work and play with! The 1/4 I do let this forum onto gets enough questionable attention as is!
Theres a reason you dont see me jump all over people with interesting and unique ideas.
How small of compressor do you want?
I scrapped several small dehumidifiers last year that had compressors less than 4 inches in diameter and 6 inches long! They only used about 90 watts I think.
Cute but to small for me to find any useful purpose for them. The compressors worked fine too! The cheap aluminum condenser coils rotted out on them and leaked out the freon.
The fridge I posted the link to burns the propane to make things cold. It uses absolutely NO electricity to cool. Here is a wiki link that explains the concept:
Absorption refrigerator - Wikipedia, the free encyclopedia
WOW! That is Amazing!
Sorry it was not clear to me the first time, but now that I read some of wiki article on it, I am absolutely blown away that such systems exist. This means I can probably modify the damn thing and make it run of heat generated by a typical camping fire.
Thanks for sharing this with me!
I found an old windows AC unit and decided to salvage the condenser + evaporator. So when I cut the coil, Lord and Behold! Oil and freon were blasted out for 5 minutes! There was a cloud of oil covering 2 houses down the street. I got lucky that neighbors were not home at a time, otherwise they would have made me clean up all that oil mess on their driveway
I have a few questions, not that I'll ever do this, I'm just interested.
How do you re-fill the refrigeration system when you've modified and reassembled it into your own system?
Where can you buy refrigerant from?
How do you bend the copper pipe without crushing it?
I take it that you can just solder the pipe together.
Do most of these small compressors (window AC, dehumidifiers, etc) have a built in motor, or would it be easy to change it to a DC motor?
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