air conditioners

[hunsperger]

...

Not only that (and yes, the laws of thermodynamics mean that it's physically impossible to cool anything down without transferring the heat to something else somehow), but because the mechanisms that we use for air conditioners (or any other machine, for that matter) are not 100% efficient, that means that there will always be some work energy that is wasted (ie. doesn't go towards the purpose of the machine). That wasted energy becomes heat. So that means that if we want to cool something down, we have to transfer the heat from it to something else in the environment, and on top of that we also create some excess heat that gets transferred into the environment. So all of the air conditioners and refrigerators in the world are actually heating up the planet by minuscule amounts at a time.

nice read, if not somewhat pedantic...

an example would be electrical resistance in the machine itself generating heat...

I've said it before, this guy knows his stuff...

except when it comes to hockey ...

 

[Thatotherguy]

nice read, if not somewhat pedantic...

an example would be electrical resistance in the machine itself generating heat...

I've said it before, this guy knows his stuff...

except when it comes to hockey ...

LOL! I could say the same about you! Oh, and for the record, I don't just consider myself somewhat pedantic, I consider myself incredibly pedantic and proud of it!

 

[henryhill]

I don't have any AC. I just take off my skin and sit around in my skeleton. It works great!

 

[Harmony-bc]

I don't have any AC. I just take off my skin and sit around in my skeleton. It works great!

you have no idea how much i wish i could, lol. i am so hot i can't even use the shift button, too much work,

no air conditioner at all in the living/dieing room, lol.

 

[henryhill]

no air conditioner at all in the living/dieing room, lol.

funnnnnny.

 

[magicmystery]

+1 I ordered a custom kit off the internet. Just entered in all the measurements of the windows I wanted to tint on their site.
I got fairly dark tint. Usually on days like this before the tint, my place would get really hot. Sometimes up to 30c, with all my blinds shut tight. Today it never got beyond 21c. They also block 99.9% of uv rays, so it protects your furniture. It was very easy to install, and quite cheap.

What site did you use to order this kit?

 

[summerbreeze]

we have some smart inventors to be sure but none who can defy the laws of physics, sorry harmony...... not possible

running a cold water heat exchanger would circumvent the a/c issue, you would have to rig one up and your water bill (building water bill) would go up but it would work

like a radiator with a fan for the house, circulates cold air

commercial coolers in stores used to use water condensers until water meters got installed everywhere and they went to air cooled to reduce the water bill

if you wanted to install a Y duct you could possibly vent out through the laundry vent but then the a/c would be located in that area

portable are popular in Vancouver because there is a city bylaw against having the in-window style. this bylaw was probably passed back in the days when it wasn't so hot in vancouver

these days you need a/c for about 6 to 8 weeks of the year, the old days it was about 2 or 3 weeks of the year

 

[trackstar]

Okay I didn’t read the whole thread but those who said AC cannot work without being vented outside, this is not true at all.

You can get water cooled/freon air conditioners, whereby instead of having to vent the heat outside, cold water from the tap water passes thru a heat exchanger and removes the heat from the freon. The water comes out of the air conditioner basically boiling hot and is routed down the drain. These systems work really well, I installed one in my ex gf's house a few years ago as it was not possible to install an air cooled system (long story), mind you this was for a central ac setup for a 3500 sq ft house not a small portable ac set up. It worked extremely well and could get the house temperature down to 60F if desired even on the hottest days of the year. The downside to these is they do obviously consume a lot of water.

I would try to contact an actual air conditioner distributor (as opposed to a retail outlet like sears or home depot) and see if they have anything for your scenario.

Good luck.

Interesting, I've never heard of that before Do they make portable versions, or just large ones, as you have described? I'm guessing theu are pretty pricey?

 

[treveller]

Pedantic Plus

... the laws of thermodynamics mean that it's physically impossible to cool anything down without transferring the heat to something else somehow...

Chemical cold packs and other endothermic chemical reactions may be an exception when considered in isolation. Mix the two room temperature chemicals and they become cold.

 

[treveller]

Conservation

...You can get water cooled/freon air conditioners, whereby instead of having to vent the heat outside, cold water from the tap water passes thru a heat exchanger and removes the heat from the freon...

Our water is so under priced that most of the restaurants and commercial buildings use an open tap through the condenser to the drain for cooling their refrigeration systems.

Think about that the next time the water board asks you to conserve water. Its all so the businesses can waste more.

 

[Vivian Saint]

You can find a great selection of the window tints @ Rona

The only cooling system that does not need to be vented is a swamp cooler,

but I am not sure how well the work here..? If it is too humid in your appartment the won't work.

I think there might be a company here in Vancouver that sells them. ( i think home depot has them)

I hope that help.

Vivian

 

[Thatotherguy]

Chemical cold packs and other endothermic chemical reactions may be an exception when considered in isolation. Mix the two room temperature chemicals and they become cold.

It's not really an exception in that the heat is still transferred into something. In the case of an endothermic reaction, the heat energy is transferred into chemical bond energy, rather than simply being transferred to other matter while remaining in the form of thermal energy. Of course, now I'm being extremely pedantic. In the sense of what the original poster was looking for, an air conditioner which transferred the heat energy into chemical bond energy using an endothermic reaction would be ideal. Of course, there would be a whole host of logistical problems with it which would make it completely unfeasible from a practical standpoint.

 

[microbru]

Ah bastards... cleaned out the A/C units at Costco!
Time to take a cold shower and then watch some hi-def pr0n.