Hey, did you acutally installed it? Sorry, my incompetence, can this compressor work as a replacement in a regualar domestic fridge/freezer? I have a tiny fridge it's currently 220v, but I want to run it in my van off 12v. Do you think I can just replace current copressor with this?
I have not actually used it yet, but I have turned it on and it works great. As long as your system is small enough and uses a compatible refrigerant and you swap it in carefully (recover, install, pump down the system, fill, start), it should work.
Hey! Do you know what the inlet and outlet pressures of these things are? I've been trying to get in contact with PURSWAVE but I can't seem to get an answer out of them.
Questions 1. What about refrigerant oil? 2. What is the lifespan of this compressor? Is It 12 volts and amperage? 4. How does a rotary compare to piston and sterling?
Probably less than that. Also, its COP, according to the data sheets on Ebay and not the advertisement pictures, is 1.7. That's really bad. These compressors really only exist for organ transport or something else where efficiency isn't very important.
This is only slightly smaller than the Sawafuji "swing motor" linear compressor used in Engel portable refrigerator/freezers. The biggest difference is that this is a rotary compressor.
Very cool - I'd never seen these compressors before! Here is a link... www.engel.store/en/content/Compressor-7 ..and another very interesting lenear compressor... www.coolingpost.com/world-news/oil-less-linear-compressor-launched/ ...(which has aparetnely been discontinued recently)
I wish I didn't have 608 certification since I can't play with stuff like this legally without getting a huge fine if I'm not using RRR machines. I wonder what limits the size since we need something to combat the plague of Peltier-Seebeck-based dehumidifiers, micro fridges, etc.
I also have 608 cert... but when I play with stuff like this I just use Dust Off as the working fluid. The bottles contain R152a, but since it is not sold as a "refrigerant" you are allowed (in fact, encouraged!) to release it to the atmosphere.
@@bigjoshlevine Its a nice pump but I don't think it would last very long if it was cooling anything bigger than a well-insulated cooler. I think those compressors are meant for stuff like organ transplant coolers. That's why they run on DC and can tolerate a 30-degree tipping angle. Any comfort application I can think of would just be dangerous since the insulation you'd need would be make a leak deadly(like for a small enclosed car or bike helmet). You know what? Why don't you turn it into a desktop portable air conditioner. The ductwork has been standardized so it would be relatively easy to build and it would be pretty useful to have an AC unit that performs the role of a desk fan better than, well, a desk fan. Aftermarket automotive evaporators are dirt cheap. I always wanted ultra tiny refrigeration compressors to become a thing to get rid of the scourge of worthless Peltier-Seebeck gadgets. I guess efficiency falls with size since the data sheet said a COP of 1.7 on Ebay. Anyway, have fun with your project. It would be neat if you could design something that others could build.
If you need it to be small, then this is the compressor for you! You could run refrigerant down to the CPU block rather than water, which should be more efficient and colder.
@@bigjoshlevine Probably better to just use a heat exchanger and cool down the coolant water. But even then, you'll burn up the compressor pretty quickly since it'll be running continuously. Cheaper, easier, and better to just use a modified minifridge for that purpose. Another thing you have to keep in mind is that if you cool the processor down too much, you'll end up getting condensation on the board. I'm surprised no one has built a computer liquid cooler that has a slot to place ice packs for temporary performance improvement.
@@ryelor123 the compressor is variable speed and brushless so its quite efficient. just keep the head temp under 200f and it should be plenty good for a long time. but i've been looking into these things. the motor itself is $60 on ebay but aliexpress seems to have them no cheaper than triple and as much as 6x as much for the same thing. idk why
Can i some how build this kind of Small AC Compressor which uses 12V ?? I need it for a project can someone guide me how i can make this small compressor it would be really helpful for me.
I can't help you with that but I can steer you in the right direction. You'll want to make sure you've got gauges on whatever you build so you can tell if the pressures on one side or the other are too high. I'd recommend you buy a cheap Walmart mini fridge to play with. Taps can be installed and if it uses R134a, you can bring it to an automotive mechanic and they can remove the refrigerant legally. Play with some copper wire(remember to anneal it a lot so it doesn't crack) and make sure to use leaded solder since lead free is junk. Record the amount of refrigerant removed which is easy since mechanics' RRR machines record it and you can probably find that info online easily. Figure out the volume of the evaporator line so that you can keep that the same when you finish your project so that the recharge can be the same. Make sure to put the system under a vacuum and hold it there to check for leaks. Never ever use stopleak refrigerant because that stuff ruins RRR machines and mechanics won't help you. Fix leaks the proper way. Look into the two main types of refrigeration cycles - expansion valve and orifice tube - and pick the method you prefer. Expansion valve is fancier but it can vary the amount of cooling whereas orifice tube style is either on or off. Also, orifice tube style has the evaporator filled with refrigerant and the cooling happens at the end of it while expansion valve has the evaporator full of refrigerant gas. The best advice I can give you is to buy a used RRR machine. You can play around all you want because you can recharge and purge your refrigeration circuit easily and you can monitor the pressure levels on both sides of the compressor. A used one can be pretty cheap and if you want to use propane instead, you can get an old R12 machine and use R12 fittings.
No, its for a cooler. Usually the kind used to transport organs. Mini fridges use much larger compressors. You have to keep in mind that a good refrigeration system is one that's more powerful than it theoretically needs to be. That way it doesn't wear out quickly.
Not yet, but I really should! At the ASHRAE Winter Conference I saw some guys made a tiny little mini-split to show off a similarly sized unit. Photo here -> photos.app.goo.gl/kCZ8ZaeifS9PFh7c9
That thing is adorable!!
Those ant colonies will be staying COOOOOLLLL this summer in their lil ant hills!
Build a DIY version of Zero Breeze with that.
and/or portable ref
or computer cooler
Ants Canada would be offended lol
Hey, did you acutally installed it? Sorry, my incompetence, can this compressor work as a replacement in a regualar domestic fridge/freezer? I have a tiny fridge it's currently 220v, but I want to run it in my van off 12v. Do you think I can just replace current copressor with this?
I have not actually used it yet, but I have turned it on and it works great. As long as your system is small enough and uses a compatible refrigerant and you swap it in carefully (recover, install, pump down the system, fill, start), it should work.
Dont let its size deceive you, this is a very powerfull compressor (around 400W ASHRAE) on full power
do you have a link for it?, would like to make ac in my 3D printed velomobile
this is the one I got...
www.aliexpress.com/item/32818904562.html
do you have link for controller only?
Hey! Do you know what the inlet and outlet pressures of these things are? I've been trying to get in contact with PURSWAVE but I can't seem to get an answer out of them.
It is designed for normal R134A system pressures, of course at very low mass flow rates compared to a normal sized compressor. .
They use R134a so its probably tied to the ideals for the refrigerant. Probably check an automotive book for AC diagnosis and you'll find the answer.
hey, can you please share the aliexpress link for this compressor?
www.aliexpress.us/item/2251832632589810.html
Questions 1. What about refrigerant oil? 2. What is the lifespan of this compressor? Is It 12 volts and amperage? 4. How does a rotary compare to piston and sterling?
What do you use it for? Build your own mini ac?
👍🥶
Waiting for it
Can you send me the link where you bought it?
I want this compressor to cool my butt on motorcycle
well , it have the cooling campacity of a small or middle size refrigerator. around 200watts to 300watts
probably best for a car glovebox AC
Probably less than that. Also, its COP, according to the data sheets on Ebay and not the advertisement pictures, is 1.7. That's really bad. These compressors really only exist for organ transport or something else where efficiency isn't very important.
Many fridge compressors don't even reach a COP of 2
This is only slightly smaller than the Sawafuji "swing motor" linear compressor used in Engel portable refrigerator/freezers. The biggest difference is that this is a rotary compressor.
Very cool - I'd never seen these compressors before!
Here is a link...
www.engel.store/en/content/Compressor-7
..and another very interesting lenear compressor...
www.coolingpost.com/world-news/oil-less-linear-compressor-launched/
...(which has aparetnely been discontinued recently)
Aren't the linear compressors the ones that are fundamentally flawed and thus don't last very long?
@@ryelor123 The LG ones are. The Sawafuji ones used in Engel freezers are very reliable.
willbe nice mini heat exchanger..
Too expensive. I tried to by from Alibaba the price was $400
How to order this from Bangladesh
Bhai kha mela ga
I wish I didn't have 608 certification since I can't play with stuff like this legally without getting a huge fine if I'm not using RRR machines. I wonder what limits the size since we need something to combat the plague of Peltier-Seebeck-based dehumidifiers, micro fridges, etc.
I also have 608 cert... but when I play with stuff like this I just use Dust Off as the working fluid. The bottles contain R152a, but since it is not sold as a "refrigerant" you are allowed (in fact, encouraged!) to release it to the atmosphere.
@@bigjoshlevine Its a nice pump but I don't think it would last very long if it was cooling anything bigger than a well-insulated cooler. I think those compressors are meant for stuff like organ transplant coolers. That's why they run on DC and can tolerate a 30-degree tipping angle. Any comfort application I can think of would just be dangerous since the insulation you'd need would be make a leak deadly(like for a small enclosed car or bike helmet).
You know what? Why don't you turn it into a desktop portable air conditioner. The ductwork has been standardized so it would be relatively easy to build and it would be pretty useful to have an AC unit that performs the role of a desk fan better than, well, a desk fan. Aftermarket automotive evaporators are dirt cheap. I always wanted ultra tiny refrigeration compressors to become a thing to get rid of the scourge of worthless Peltier-Seebeck gadgets. I guess efficiency falls with size since the data sheet said a COP of 1.7 on Ebay. Anyway, have fun with your project. It would be neat if you could design something that others could build.
Will it be useful for PC cooling?
If you need it to be small, then this is the compressor for you! You could run refrigerant down to the CPU block rather than water, which should be more efficient and colder.
@@bigjoshlevine Probably better to just use a heat exchanger and cool down the coolant water. But even then, you'll burn up the compressor pretty quickly since it'll be running continuously. Cheaper, easier, and better to just use a modified minifridge for that purpose. Another thing you have to keep in mind is that if you cool the processor down too much, you'll end up getting condensation on the board. I'm surprised no one has built a computer liquid cooler that has a slot to place ice packs for temporary performance improvement.
@@ryelor123 the compressor is variable speed and brushless so its quite efficient. just keep the head temp under 200f and it should be plenty good for a long time.
but i've been looking into these things. the motor itself is $60 on ebay but aliexpress seems to have them no cheaper than triple and as much as 6x as much for the same thing. idk why
Can i some how build this kind of Small AC Compressor which uses 12V ?? I need it for a project can someone guide me how i can make this small compressor it would be really helpful for me.
I can't help you with that but I can steer you in the right direction. You'll want to make sure you've got gauges on whatever you build so you can tell if the pressures on one side or the other are too high. I'd recommend you buy a cheap Walmart mini fridge to play with. Taps can be installed and if it uses R134a, you can bring it to an automotive mechanic and they can remove the refrigerant legally. Play with some copper wire(remember to anneal it a lot so it doesn't crack) and make sure to use leaded solder since lead free is junk. Record the amount of refrigerant removed which is easy since mechanics' RRR machines record it and you can probably find that info online easily. Figure out the volume of the evaporator line so that you can keep that the same when you finish your project so that the recharge can be the same. Make sure to put the system under a vacuum and hold it there to check for leaks. Never ever use stopleak refrigerant because that stuff ruins RRR machines and mechanics won't help you. Fix leaks the proper way.
Look into the two main types of refrigeration cycles - expansion valve and orifice tube - and pick the method you prefer. Expansion valve is fancier but it can vary the amount of cooling whereas orifice tube style is either on or off. Also, orifice tube style has the evaporator filled with refrigerant and the cooling happens at the end of it while expansion valve has the evaporator full of refrigerant gas.
The best advice I can give you is to buy a used RRR machine. You can play around all you want because you can recharge and purge your refrigeration circuit easily and you can monitor the pressure levels on both sides of the compressor. A used one can be pretty cheap and if you want to use propane instead, you can get an old R12 machine and use R12 fittings.
Did this thing end up working safely? I'm looking into buying one, but Aliexpress isn't exactly known for its reputability....
I have not yet built it into a system, but it powers up and pumps fine. I honestly have had very good luck with getting stuff on aliexpress!
Hey man i really wanna buy this compressor but i cant find it maybe giving us a link?
www.aliexpress.com/item/1005003035134897.html
But there are many on ali and aliexpress and I am not endorsing any of them (although they all look very similar)
I tested that little compressor and found that is trash.
What was wrong with yours? I have a couple and they seem to work well.
@@bigjoshlevine Heck yeah, still replying to people, that's awesome.
Just ran across your channel, cool stuff.
I want to buy this compressor
I want to create water cooling system
how much it cost?
Mine was $99 with control board.
@@bigjoshlevine any possibility of a teardown to see the internal construction?
@@SiriusFuenmayor I've seen teardowns of these elsewhere. They are pretty standard inside, just smaller! :)
It's for a mini fridge
No, its for a cooler. Usually the kind used to transport organs. Mini fridges use much larger compressors. You have to keep in mind that a good refrigeration system is one that's more powerful than it theoretically needs to be. That way it doesn't wear out quickly.
Did you ever build anything with this?
Not yet, but I really should! At the ASHRAE Winter Conference I saw some guys made a tiny little mini-split to show off a similarly sized unit. Photo here -> photos.app.goo.gl/kCZ8ZaeifS9PFh7c9
would be nice if you put a link so I don't have to search through five hundred results on aliexpress
He gave the link to somebody, you can find it in the coments
What kind of refrigerant can it take?
These are usually designed for R134A but you can use any refrigerant with compatible oil and pressure range.
R134a. Though you can put other stuff in it that's compatible with R134a compressors.
so what did you do with it?
Sadly nothing yet. But hopefully soon i will have time to build a tiny air conditioner for ants.
Did you ever set this up??
Not yet, but soon. I am building an air conditioner for ants with it. CPU heat sinks for the coils. It is tiny.
for cpu brooo you hack a day
By link please