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PeltierBeer
Helstein writes "Finishing a beer in the sun before it gets warm is usually not a problem, but what about those really hot days? Having some hardware lying around there is only one solution to keep the beer cool, that's to make a PeltierBeer."
My wife viewed this and asked why in the world someone would make that. I had to explain that we geeks get a kick out of doing stuff like this, just for the sake of doing it. This particular project would be even cooler (no pun intended) if that cat5 carried some information instead of just power. That way, maybe I could track which friends are drinking all my beer. :)
You have enemies? Good. That means you've stood up for something, sometime in your life. --Winston Churchill
The thickness of the base of the glass could affect the ability to cool it. Also charging batteries generate heat.
No, this is what Guinness should always come out of. =)
that was a long week...
For us beer geeks we would just drink beer in the sun faster. UV rays is what skunks beer.
UV interacts with the alpha acids from the hops and creates that "skunky" taste. This is why most beer bottle are brown, it blocks out most of the UV for a period of time.
This page does a a decent job of explaining what happens.
Nonetheless, this is a cool hack. Just drink it fast or leave it in the bottle/can.
Lets try this again, this time in a browser that supports cookies. :)
I read the article. He doesn't post any concrete numbers comparing it when the device is not powered.
Also, with the sensor on the peltier itself, it indicates little about the temperature of the liquid. That's like putting a thermometer on your heater and saying room temperature is 120 degrees.
I've done the research and the math regarding building a similar device, and I believe the conclusion I came to was that it would require something like ten 70 watt peltiers to move the temperature of 12 ounces of fluid a few degrees per minute. That's 700 watts before you even count the power needed for all the fans to cool the hot side of the peltiers.
I've had enough abrasive sigs. Kittens are cute and fuzzy.
When Ricochet was alive in areas that mattered (Denver and San Diego don't matter, sorry) there was very strong reception in Seal Beach, CA on Main St and well onto the sand. I used to head over to the Hennessee's there, plug in at my favorite bar stool and manage dedicated servers in Wisconsin while enjoying a Guinness. At least once I switched critical operations from one server to another while requesting another round. Miss that Ricochet. Really do.
-- @rjamestaylor on Ello
This thing couldn't work in a million years.
/. troll of the year.
The thermometer isn't in the beer, it's hooked directly to the copper plate atop the peltier device.
Without a crystal goblet and gobs of thermal goop, he's going to cool his thermometer probe and some air and not much else. Actually, he should just leave the beer in the can. Aluminum has a thermal conductivity of 205 W/m-K, and glass does 0.8 W/m-K. The thinner can* and 250X increase in k will make his project more successful, but still a candidate for
I'd be willing to bet that the metal rails of that "caffetiere" are transmitting more heat to the sides of the glass than the copper plate is taking from the base.
* - say the base of his glass is 4 mm thick, and the can is 0.2 mm thick (it could be less), then the glass will have a thermal conductance of 200 W/K and the can will have a thermal conductance of 1.03e6 W/K.
We always use stubbie holders. Stubbies are single serve glass bottles, somewhat larger than your can-sized serve usually.
RM Williams Oilskin stubbie holder
Axeman's stubbie holder Note unlike the photo, the whole can fits snuggly inside the neoprene (think wetsuit rubber).
In the tropics they take keeping your beer cold seriously:
stubbie holders, sixpack holders, You can even stick whole wine bottles into some of these.
The hard plastic and polystyrene sort. Buy a boat to hold your beer?
By the way, if there's foam in that bra, you're probably getting less than you bargained on. Real women don't need or want padding. Although occasionally I'd bet they'd like hard shielding from octopi disguised as men.
-- it must be true, it's on the internet.