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Transforming a upright freezer into a super airconditioner? Answered

 I'm getting a slightly broken, upright freezer from craigslist (only the seal is broke, so air's leaking out the door frame) and I was wondering if there is any way to make it into a slightly over sized air conditioner. 

Living in Texas, it's kinda hot so I dont mind if its chilly (im the kind of guy that wears flipflops to North Carolina in the Winter on the Mountains). Im going to be putting it in a mobile home that will be internally demolished and transformed into a recording studio. It shall have its own little 'space' over in the corner. It would be great to cool down the heavy old-ish recording equipment and the computer I will house in the 'tech room'!

Could I just cut a hole in the freezer and run a duct from it to the trailer? Would it put too much condensation? Thanks! 

*Big, upright freezer around the size of a normal refridgerator*

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steveastrouk
steveastrouk

Best Answer 10 years ago

No, it won't work well, because you just won't have the power to cool much. The compressor will probably be rated at 200W or so, an aircon, 3kW or more.

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Pmanhart
Pmanhart

2 years ago

What about using a fridge to cool water in copper pipe and then run that water through a radiator. You can use a fan to blow air through the radiator and into the house. Collect condensed water for watering plants.
I have a freezer that I can set to 35 degrees. Cut two holes in freezer. One for the input copper pipe which circulates through the freezer and exits out the other hole. The exit pipe goes to a large radiator also of copper. I’m thinking a flat radiator on a slopes roof. The lower part has fans that blow air up and out the top, into ductwork and into the house. The condensed water flows down because of the sloped roof.
Any thoughts? The freezer is in the basement.

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Jeff_SG
Jeff_SG

Reply 10 months ago

I'm really glad to have found this discussion on Chilled water Air conditioning. This is exactly what's been on my mind for a while... and I hope to get something started with all the ideas that I've read here to cool a small room in my apartrment as an experiment.
I'm basically going to get a Chest Freezer with dual temperature ranges, so that I could just operate it as a chiller instead, at the higher temperature setting of between 11 to 15 degrees C. This will be placed outside in the balcony, so the heat goes out.
I shall place a water filled, 30 to 40 liters stainless steel square bucket that has a lid with two holes for piping, inside the chest freezer cavity nicely. This will be maintained at the set temperature, and will keep running until the thermostat of the chiller cuts-off.
Then use a submersible recirculating water pump (fountain pump) that will be connected by flexible pvc hose to the inlet of the radiator (wall mounted fan-coil unit with remote control) and the outlet discharged warm water will be piped back into the stainless steel bucket to be cooled and recirculated as a closed system.
I figure that, the room temperature thermostat will be set at a comfortable temperature
of 23 to 24 degrees C. and then cut off the recirculating water pump when the room has cooled... and start when cooling is needed to keep the room cooled. The general outdoor temperature where I live is 30 to 33 degrees C.... so having an 8 degree C temperature difference is ideal for me.
This will be the general idea I shall attempt.
I was wondering if anyone has thoughts on this to share, if there is something I've missed.
Thanks so much.
Jeff :-)

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Orion5
Orion5

2 years ago

It might work if you use the freezer as an energy storage device. Make two holes in the freezer in a safe area (maybe the door?), one for a fan, and another for an air duct, one at the bottom and one at the top of the door. Make it so that these holes can be sealed, because overnight (or during off-use hours) the freezer will need to be able to make ice. Fill the freezer with bottles of water - as many as can fit, full as possible - and turn on the freezer during off-hours until all the water is frozen. When you need cooling, turn the freezer off, unseal the holes for the fan & the duct, turn on the fan, and the ice will help cool the space until it's melted. It's important to turn OFF the freezer when you are using it to cool the place, and only turn on the freezer during off-hours (overnight, for example) with the holes sealed to store cooling energy in the ice again.
This isn't necessarily an energy-efficient way of cooling, but allowing the water to freeze overnight might save you a bit of money if electricity costs are lower at night where you live. Also, the freezer may need more than 8-10 hours to freeze the water inside...but I'll allow you to experiment with that. :) Good luck!

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stevesimo
stevesimo

4 years ago

Been pondering on this one myself, changing the freezer total volume is a NO granted. pitcher this.

5inch hole bottom right.

20m of 5in tuff aluminium ducting, start inside pulling around 6inch out for sealing up, this is your intake

coil the ducting right to left and right to left then layer it. lay old wet towel and t-shirts or any absorbent material between the layers.

repeat this process until the freezer is full then cut outlet hole in convenient location. and seal properly not with gaffer tape

seal both inlet and out temporally with insolation's while the material's freeze, you can keep building it up.

eventually you can draw nice ice cool air through it, however if you think il put a 6inch squirrel fan on instead this will increase the air flow to much and start a defrost reaction... maybe this only works in uk be the highs are only 35c tops.

Please comment buts lets be nice we all have great minds that's why we are on this site..steve

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cdubnbird
cdubnbird

10 years ago

 is it a vapor compression cycle freezer or an absorption freezer?

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darkclaw42
darkclaw42

Answer 10 years ago

 I actually have no idea... Ill have to check it when I get it. Whats the difference between the two?

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NachoMahma
NachoMahma

Answer 10 years ago

.  If it just has an electrical plug, it's a compressor type. If it has a natural gas (or propane or butane) connection, it's an absorption type.
.  Absorption units are usually used in campers and such where electricity may be limited or non-existent.

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cdubnbird
cdubnbird

10 years ago

 you could simply use it as a freezer to freeze buckets of ice and then have fans blowing like they used a long time ago

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Re-design
Re-design

10 years ago

They system is underpowered to do what you want as steve mentions.

And,

Unless you separate the systems and put the compressor outside and the cooling coils inside you'll be dumping more heat inside the room than you are taking out.