A bit of googling around reveals an apparently simple solution of replacing the standard compressor of an air compressor unit with a fridge compressor. If like me, you bought one from a professional fridge recycling outfit, the compressor may come with all of its ports welded shut. After many years of reliable operation I recently decided to do a few upgrades, resolving all of the ‘bothers’ I’ve had with this air compressor.
There will be a wire running from the fridge compressor to the inside of the fridge – it goes to the thermostat and powers the light inside the fridge – again the longer the lenght that you salvage the better. Once you have the compressor running you need to find a way to securely attach a fitting to it’s output tube. Of course you can just use a clamp and put a lenght of air line onto it, but that’s not the best method – especially if you plan to use the compressor at more than 10-15 bar.
With a little ingenuity and a willingness to compromise on performance, you might find this ultra-quiet, ultra-cheap air compressor a welcome way to keep the peace in your shop. ‘s design sort of requires you to buy an air tank, and the easiest way to do that might be just to buy the compressor in the first place. Fridge compressors are a natural starting point for air compressor builds, like this fire extinguisher based design, or this high-pressure tandem compressor.
Built a remarkably quiet compressor using parts salvaged from an old fridge. While performance of the original setup was good, [Eric] desired a compressor with more capacity for his resin casting activities. A 15 gallon air tank was sourced from a damaged Craftsman brand compressor, and pressed into service.
make air compressor from refrigerator Related Question:
How much pressure does a refrigerator compressor make?
A 100 – 300 watt fridge compressor can deliver 0.7 – 1 CFM of air and can reach pressures over 500 psi.
Can refrigerator Compressor be used for AC?
Not unless you install it inside an AC. As a refrigerator, the inside coil (evaporator) and outside coil (condenser) would both affect the same airspace, and so it would run but never cool.
Can you use a fridge as an AC?
You can fan yourself with the door to cool yourself down, but you can’t actually lower the temperature of the room. This is because refrigeration is not a perfectly efficient process. More heat enters the room through the exhaust vent than is extracted from the inside of the refrigerator.
What is the average life of a refrigerator compressor?
Although plans for a replacement should start around eight years of service, a well-maintained compressor can reach to ten years and beyond. As it ages, efficiency loss is gradual at first.
Can a fridge compressor explode?
Sometimes, the rear of the fridge can get extremely hot, as the gas that cools down the fridge returns through the compressor and becomes trapped inside. That trapped gas, stuck within the fridge’s compressor, leads to a pressure build up silently—and, eventually, an explosion.
Can I use automotive R134a in a refrigerator?
In short, NO! R 134A is designed for the high demands of an automobile AC and cannot be used on refrigerators due to pressure differences. Refrigerators generally utilize R22, R32 or 410A-based coolants as their cooling agent.
Does a refrigerator have two compressors?
In refrigerators with a single compressor, cold air circulates from the one compressor throughout the entire unit, including the refrigerated compartment and the freezer compartment. In models with dual compressors, there is a separate unit and air flow for the refrigerated compartment and the freezer compartment.
How much vacuum can a refrigerator compressor pull?
A fridge will pull down to 20-50 mbar if it has a piston pump. The best compressors are found in large fridges/freezers and air-conditioning units that pull down to 1 mbar.
What can I use if I don’t have compressed air?
Isopropyl alcohol, a compressor, an ESD-safe brush: all this from just one StackExchange thread. Unless it’s a device where literally nothing can reach the dust except air, you don’t have to pretend you work in a clean room on archaeology finds. A small brush or not-too-pointy stick can suffice.
How cold is canned air?
When you spray an aerosol duster, the vapors of the propellant are expelled. As you rotate the can, the liquid starts to spray out and at a very low temperature (as low as -60ºF / -51.5ºC).
Does putting ice behind a fan work?
According to the GHI, placing a bucket of ice in front of a fan as a homemade AC unit is just as effective. ‘As the air passes over the ice it will be chilled and will circulate refreshingly cold air around the room,’ they explain.
Do DIY air conditioners work?
After multiple runs using 8 to 12 pounds of three different forms of ice—cubes, reusable ice packs, and a frozen gallon jug of water—the homemade air conditioner was able to lower the temperature of a small room by only 2° to 3° F, and within 30 minutes the room temperature began to rise again.
Why does water go in at the bottom of a condenser?
Q: Why does it matter whether the water enters the condenser at the top or from the bottom? If water enters from the bottom of the condenser, it will always be completely filled with cold water which ensures efficient cooling. During distillation, vapors are formed in the heated distillation flask.
