/diy/ - Do-It-Yourself

It’s not summer yet, people are trying to jury rig air conditioners already?

Put the water in the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.
The freezer removes heat from water, puts it in the room.
You stick the water in the room, and the room puts heat into the water.
Then you put the water into the freezer.

It's garbage.

>>2548957
It's hot season in the southern hemisphere.

>>2548958
>put water in freezer overnight when its cold out
>put ice in front of fan during the day when its hot out
problem???

>>2548953
>I assume its a air conditioning
this is how I cool my GPU

>>2548953
Skip the copper pipes and box fan, just get a radiator made for the purpose.
https://youtu.be/nSA1OGhB-WI

>>2548953
>Assuming this worked
it doesn't.
next thread pls

>>2548953
>shouldnt there be a pump
It's in the tub of ice water, genius.

Just buy a window AC unit. You can get a 5k BTU one for $175, it will cool WAY better, it will be far less of a pain in the ass to use, and it's far more energy efficient than constantly freezing large amounts of water in your freezer.

>>2548969
This makes sense.

Also you don't necessarily have to use ice from your own freezer.
Where I live, the cold water out of the tap is cool enough year-round to make this work.

>>2549047
With the price of electricity in Denmark the running costs of a window unit would put you in generational debt.

>>2548969
build house from stone and insulate the outside.

temperature stays the same all day

>>2549115
>Living in Europe after the year 2000
ISHYDDT

>>2548958
This

>>2548954
This probably costs more than a cheap window unit and I’m sure it’s inefficient as hell too.

I think the design would be more efficient if the coils were behind the fan instead of infront of it, unless the motor gets really hot.

>>2548953
Do this

>>2549115
I guarantee you that it uses more electricity to freeze a bunch of ice in your freezer and convert that into cold air in a room than it does to just run a small AC unit to do the same amount of cooling.

>>2549348
Refrigerator compressors are not made to do that kind of cooling. They are sized to keep a small volume of air cold which inside a highly insulated box. If you do what you show in your diagram, it's either not going to amount to any real cooling or it's going to kill the compressor. Or both. A window AC unit would use less power to cool better and would last much longer doing it.

>>2549348
Or just do something like this.

>>2548969
>problem???
Yeah.
You warm up house overnight with freezer condenser. Sun comes up and starts heating your house from a higher initial temperature.

>>2548953
Fucking europoors man I'm tellin ya.

>>2548953
>shouldnt there be a pump
your brain is right on the cusp of getting larger

>>2549338
>it’s inefficient as hell
Its a couple bucks for a giant bag of ice from the grocery store, pump and a fan run with normal A/C anyways so we can disregard their cost. Its actually and literally the most efficient A/C out there.

>>2549338
wait, you're not OP, why are you tripfagging?

(sorry for the triple post)

>>2550312
A small window AC unit will cost you at most maybe $1.50 in electricity per day. Compare that to how much it costs to run the fan, run the pump, drive to the store and back, and purchase X number of bags of ice per day (you'll be likely to go through more than 1 bag a day)

>>2550483
>and purchase X number of bags of ice per day (you'll be likely to go through more than 1 bag a day)
That's easy. One ton of ice (latent heat of fusion) is 288k BTU or 12k BTU/hr over a 24 h period. That makes one pound of ice worth 6 BTU/hr. A window unit is probably in the neighborhood of 3k-10k BTU/hr.

>>2548953
Why do this people use fucking ice for these things ????
I just jury rigged circulation from floor heating to our well that is 5 degrees Celsius even at hottest days.

>>2548953
Just get a free AC off Craigslist. They’re available year round.

>>2548958
this is assuming he’s not buying ice. If you buy ice it works. or if your room is sufficiently seperate from the fridge.

>>2548953
Can i do this for heat? I have old air units i was going to rig up one radiator near the flame and one in my shop. With a circulation pump and fan in the shop side. I only question the efficiency, i only need it warm.

>>2549125
Americans are scared of and confused at that image

>>2548953
>Assuming this worked
It doesn't.
>presumably circulating water
The styrofoam cooler is filled with ice and has a pump in it. The pump circulates water through the ice to cool it before it goes to the copper loop attached the fan, where air blows over the copper and gets cooled by heat transfer before heading back to the ice to do it all again.

>>2549047
This.

>>2549083
>Where I live, the cold water out of the tap is cool enough year-round to make this work
No, it isn't. "Cold" water out of the tap will warm up much faster than ice, meaning you'll need to change the water out a lot more often.

>>2549115
Trying real hard to feel bad for ya.

>>2549347
Literally makes no difference. The motor doesn't draw enough amps to produce an amount of heat that would matter.

>>2549772
He was shitposting not being serious.

>>2550312
>pump and a fan run with normal A/C anyways so we can disregard their cost.
Actually, if you're going to disregard their cost then there's no good reason to do this instead of getting a window AC. If they are the same price to you, why would you choose the most inefficient method? Or are you just fuckin retarded?

By time you waste your money and time on the parts for this meme cooler you could've just gotten a window unit and been way more comfortable for about the same amount of electricity. Not only that, but this fucking monstrosity takes up a ton of space in the room instead of the wimdow AND you have to keep taking this shit all apart so you can dump the warm water out and refill it with ice.

>>2552281
>No, it isn't. "Cold" water out of the tap will warm up much faster than ice, meaning you'll need to change the water out a lot more often.
Yes, but that doesn't mean it doesn't work.
I literally used cold water for this back when I had a third-floor apartment ... one summer day was unbearably hot, and the A/C window unit wasn't doing enough, so I filled the bathtub with cold water and ran a fan in the bathroom doorway. It cooled the apartment down.
>"Cold" water out of the tap will warm up much faster than ice
That's the whole point of the contraption. Water is taking heat out of the air. If the water is warming up, that means the air is cooling down.
As the water approaches the ambient air temperature, drain the tub and fill it again.
Simple as.

>>2552307
No need to drain the tub, just put a cutting board or something in it under the tap so the water flows across the whole bottom and let it sit with a moderate flow. The tub will be chilled and the pipes leading to it will be constantly refreshed with cool water and lower the temperature of the walls gradually.

>>2552353
You'll also get loads of condensation off the copper coil that the fan will then blow everywhere.

>>2552281
> Actually, if you're going to disregard their cost then there's no good reason to do this instead of getting a window AC.
Excess solar energy. Freeze a large amount of water at solar peak and use it with this method for the solar downtime. Cuts energy use from the grid or batteries enormously. I have a large house and some 20 kWh excess solar even on a bad day up to 40 kWh on a good, so I'm tempted to fix some kind of ice making machine and submerge a copper air intake pipe in the ice water bath permanently, this should permanently reduce the air intake temperature and thus the energy needed to cool it to a target temperature while the ice lasts

>>2552971
>Freeze a large amount of water at solar peak and use it with this method for the solar downtime.
Large office buildings do this already. They get preferable rates overnight and make the ice. It's a very efficient way to time shift the load.

>>2552976
Yeah i saw there are some large commercially available units to do it too even so makes sense, the vast majority of my energy usage is cooling, too so i can't see much of a downside in doing this, i
I am thinking some kind of high wattage icemaker outside that i will rig to hass and autodump on full state to a large insulated container, radiant pipe loops in the container, insulated run from there to the intake on the household ac units, when they draw air in they will thus draw chilled air through the precooling apparatus.

>>2548953
Just buy a portable ac unit. I got one second hand for $100. Cleaned out some dust and it's like new.

>>2548953
Fill the tubing with ammonia and you're well on your way to inventing air-conditioning again, over 100 years after it's already been invented.

It works if you're looking for something a bit better than just a fan. That being said, just get something purpose-built. It'll be more efficient and actually help during hot days. These also don't work so well when it's humid, so good luck in those climates.

>>2554284

>single hose unit

you know those actually suck the air from inside to cool the condenser coils and blow the hot air outside. you are basically cooling the air to just have it blown outside to keep the condenser cool so it doesnt overjheat

always get the 2 hose model that pulls outside air to cool the condenser and blows it right back outside so the evaporator can actually cool the room without the rooms air being used to cool the condenser.

>>2548957
>It’s not summer yet,
It's always summer on /diy/

>>2549125
That graphic clearly shows that the temperature has already been regulated to a steady state at the inside of the insulation, so it wouldn't matter whether the structure was masonry, steel, or wood, it would remain the same temperature regardless

>>2554637
I see what you did there.

I had to use one of these when I lived in an apartment that didn't allow window AC. It's absolutely better than a fan and cheaper than a portable AC, if nothing else.

>>2554849
here only with insulation, and drywall, the lime plaster helps to.

you get quite a temperature shift inside.

>>2552307
I don't think you grasp the concept correctly. Ice will work better than cold water because it delivers lower temp water to the fan for cooling AND it can exchange more heat than cold tap water.

>>2552353
You're too stupid to insult. Once the water has exchanged all the heat it can it will stop cooling and you will have a tub of warm water. It's not a perpetual energy device. You will need to drain and refill the cooler.

>>2552378
Which is the exact opposite of what you want. You need to REMOVE moisture from the air to feel cooler. Unfortunately this device has no setup for the collection of drain water so it either re-evaporates back into the room or leaks everywhere.

>>2552971
Just go buy a fucking bag of ice for $4.

>>2552976
No, they don't.

>>2552987
For all that work you could simply pipe the tube through your existing fridge/freezer.

>>2554439
Using room air to cool the condenser improves efficiency and reduces electrical use without impacting the room temp dramatically.
Cool room air - easier to condense - lower pressures on compressor - compressor draws fewer amps. Outside air is the worst idea.

>>2555774
No you didn't, and no it isn't.

imagine putting this much effort into your air conditioning

>>2556751
Imagine not tinkering, learning and having fun.

>>2556774
>Imagine not tinkering, learning and having fun.
Imagine wasting time and money making some meme contraption you saw on the internet because you lack the common sense needed to realize beforehand that it's a retarded idea that won't work.
Even worse, imagine making this bullshit and then giving yourself a pat on the back for your effort even after you realize it doesn't work.