Personal "air conditioners" aren't what they seem technology connections

by sdfghjWWErtykjbv



You know, it’s one thing when a product has a limited scope and application. It’s another when it’s passed off as something greater than what it is. Learn why these fad devices are fad devices in this video.

Here’s some of the stuff I referenced;

First, the channel HVACR Videos. This really is a fascinating channel if you’re curious about what goes into commercial refrigeration and air conditioning systems, and is a great resource for anyone looking to go into that trade;

The video I specifically referenced with the swamp cooler was actually two; in the second video, the swamp cooler is rebuilt.

Second, my old plugs;
Rice cooker:

Portable air conditioners:

Other assorted links;
Technology Connextras (the second channel that stuff goes on sometimes):

Technology Connections on Twitter:

The TC Subreddit

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35 comments

Micah Todd 25/09/2021 - 6:02 Chiều

I heard the ozone recently forgave us for the spray cans as the ozone hole closed and filled

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AegisHyperon 25/09/2021 - 6:02 Chiều

Looks like a humidifier

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Ulysses3473 25/09/2021 - 6:02 Chiều

My cat loves these types of cooler but the plastic filter kind .Sleeping in front of it during hot days , just the right size 😻

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Moswen Media 25/09/2021 - 6:02 Chiều

Interesting note, as someone who lives in a southern state plagued by 99% humidity in the summer, I've found out cooling based on air moving through a membrane is not very effective. I enjoy riding motorcycles and because I have a whole motor between my legs and in the sun with no roof, it can get incredibly hot in the summer. Commonly bikers will soak their jackets, or a bandana in water and let the air passing through it cool your body. I was saddened to discover, that it doesn't work very well in a place where the air is more saturated than your jacket.

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gnarth d'arkanen 25/09/2021 - 6:02 Chiều

Thanks, Alec… for the confirmation I'd rather hoped I'd find.

I do calculations on things like these based (often) on something I call "the quick and dirty math" as a logic system. Other people consistently warn me that I'm probably wrong most of the time, because of things like "It's just not that simple."

SO here (for those pedantic enough to want to know) was my "quick and dirty math" logic on this particular product… Having read up on the principles involved and the instructions for actually using the device. (No, I hadn't bought one. It wasn't hard to find out.)

SO it takes water I pour into it, and uses rapid evaporation to cool air. That sounds like a shorthand for drawing energy from the air around it to evaporate the water… Okay, I've been downwind of a pond, and felt the difference in the wind from over said pond. I'm with you…

Except this thing does it all in an enclosed space. SO (correct me if I'm wrong)… It's taking energy from the air and putting it into water that's going back up into the air… with the energy it's holding… to stay evaporated.

That sounds extremely temporary as effects go, and considering it's NOT nearly the size of even a small pond, I fail to see what actual net benefit it could possibly be worth… Looking at the prices for some of these, people MUST be crazy… or stupid… or both.

I mean… Even a basic understanding of thermodynamics is going to grasp that for the very limited cooling effect you might feel at the output of this device, there's going to be considerably more energy ready to come inside and join you from the outer world, no matter what you do… SO you're just adding energy to the air you're trying to stir around, the way I saw it…

AND I already live in an area so humid that mold is a NON-STOP issue wherever the air isn't constantly being moved… like via a "Hurricane Fan" moved. I'm just better off to set an alarm for early morning to open every door and window in the house, and a second to make sure all the doors and windows in the house are secured.

In any case… This was much more in depth and well articulated, but certainly confirmed my suspicions. ;o)

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xinceras - 25/09/2021 - 6:02 Chiều

I had no idea those compressed air cans contained greenhouse gasses. Next time some hippy starts annoying me with a climate change lecture, I'll just give them a good spray. Thanks!

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Ben 25/09/2021 - 6:02 Chiều

Coolgardie Box? If its dry it works. Atmospheric science in a lab. 🙂

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Peter smith 25/09/2021 - 6:02 Chiều

At home in MS we had huge shop fans with swamp cooler in the repair shop i worked in, temps over 100 with 85-100% humidity all day long during summer. They were great for reducing dust in the air. Or a breeze when there was none. Not so much the cooling part.

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Peter smith 25/09/2021 - 6:02 Chiều

Visiting my cousin in AZ during late 80's, they had no AC just a couple of swamp coolers they worked quite well for keeping the house comfortable.

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Tara Wright 25/09/2021 - 6:02 Chiều

It's amazing how many people "invented" that amazing technology. So far I've seen a nun, a junior highschool student, a single father, a priest and a teacher in a crappy school.

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Flavius Aetius 25/09/2021 - 6:02 Chiều

This is why I stopped using canned air. And they're super expensive. I've got one of those electric plug-in dusters now.

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Haku 81 25/09/2021 - 6:02 Chiều

"A machine you can just plop down and get cooling from is impossible"
Zero Breeze-OH YEAH!?
Yes, now go away you useless scam, nobody wants you.

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Rolofunk 25/09/2021 - 6:02 Chiều

what if I put acetone in it?

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Jeff Lowery 25/09/2021 - 6:02 Chiều

Very informative video but overlong. Could use some editing.

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D1V15OR 25/09/2021 - 6:02 Chiều

flamethrowers have to be "regulated" and "banned" but I can go to the dollar store and load up on ice throwers

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ShrapnelSlurpee 25/09/2021 - 6:02 Chiều

When i was in the army we had 3 huge ones that were on carts they were about 6×6 feet. They worked pretty good in the dry heat of texas.

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Marvin De Bot 25/09/2021 - 6:02 Chiều

Called "Swampies" in Australia, every home in the outback has one on the roof.

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Hazel Greene 25/09/2021 - 6:02 Chiều

My idiot boss has one

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Temo990 25/09/2021 - 6:02 Chiều

Is Difluorethane still legal? I thought there is an international treaty that restrictes the uses of halogen gases because they damage the ozone layer.

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Greg Bolls 25/09/2021 - 6:02 Chiều

I have 2 of them, they work good down here in FL and also cleans the air going through them.

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M. J. Doty 25/09/2021 - 6:02 Chiều

Love his science/engineering shows, but does anyone else get the so-this-is-what-Bunsen-Honeydew-would-look-like-if-he-weren't-a-Muppet vibe?

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Terminal Insanity 25/09/2021 - 6:02 Chiều

that is an awesome tshirt

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John Hasty 25/09/2021 - 6:02 Chiều

I tried to explain this to a couple of my friends but they were so thick headed that it was a complete waste of time, therefore I put your video on repeat in lieu that it would finally be absorbed by their minuscule brains. Always remember, you can’t win an argument with an idiot, not due to your ability to teach, but rather the fact is idiots are “unteachable” 🤣

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فاء بن ألف' 25/09/2021 - 6:02 Chiều

I came here to watch you talk about that tiny AC, not complain about how a keyboard duster is “environmentally problematic”

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Cinematic Scenarios 25/09/2021 - 6:02 Chiều

2:12 The oceans aren’t boiling, yet!

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Tera GX 25/09/2021 - 6:02 Chiều

Bad marketing, if they didn't call these devices air conditioners I would have given them a look much sooner. Colorado is a perfect place for swamp coolers, but they can't quite do the entire house. I ignored these because of knowing how "air conditioning" works and the impossibility; if they instead called these swamp/evaporative coolers, I would have bought one months ago!

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Louisa Sabrina Susiene Halverson 25/09/2021 - 6:02 Chiều

And I don't know why… but my Mexican air-conditioner automatically shuts off before over cooling and freezing itself up…
Unlike the USA versions that I've experienced before!

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Louisa Sabrina Susiene Halverson 25/09/2021 - 6:02 Chiều

Both inside and outside of my house….i live in southern Mexico!

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Louisa Sabrina Susiene Halverson 25/09/2021 - 6:02 Chiều

This is why my air-conditioner sweats condensation to the extent that everyday it will fill a 2 liter bowl at least if not more!

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Surfer Silver 25/09/2021 - 6:02 Chiều

I like how you keep cool under room pressure with all these techno babble words you have to spew out at a higher pressure than when they entered your eyes/ears.

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Jorge Barajas 25/09/2021 - 6:02 Chiều

yet…

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Matthew McLean 25/09/2021 - 6:02 Chiều

It's a humidifier.

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RK YEG 25/09/2021 - 6:02 Chiều

I was given two of these. My city had a few weeks of dry 38°C (100.4 F), and I used one at my home office desk and it did give some relief. But yeah it does not live up to the hype.

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Edward Jackson 25/09/2021 - 6:02 Chiều

Swampers are useful in certain conditions

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2 dragonfire 25/09/2021 - 6:02 Chiều

Instead of using canned dusters, why don't we use something like rotary compressors or something like that to dust our electronics. It would mean instant compressed air without a tank & the potential to be made of cheap plastic parts & no greenhouse gas emission (from the unit itself)

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