peltier
Latest
Sony is crowdfunding a wearable 'air conditioner' (updated)
Are you struggling to cope with the heat outdoors? Sony might have a solution, if not as soon as you might like. The company's First Flight program is crowdfunding a wearable 'air conditioner,' the Reon Pocket, that slips into a pouch in a special t-shirt. The stealthy device doesn't condition the air as such. Rather, it sits at the base of your neck and uses the Peltier effect (where heat is absorbed or emitted when you pass an electrical current across a junction) to either lower your temperature by 23F or raise it by 14F, all without bulk or noise. You could wear a stuffy business outfit on a hot day and avoid looking like you've just stepped out of a sauna.
Solar power will give you non-stop water during bike rides
If you're a cyclist, you know the anxiety that comes with running out of water in the middle of a bike ride -- the last thing you want is dehydration when you're miles away from home. Design student Kristof Retezàr may just set your mind at ease, though. He recently developed Fontus, a bike-mounted device that uses solar power to convert air moisture into water for your drinking bottle. The key is its use of thermoelectric cooling. Solar panels generate electricity that cools the top of the device, where air comes in as you ride; as the moisture condenses, it drips water into a bottle below. The bottom stays warm, but that only accelerates the condensation process above.
ThermoShield protects your phone in unbearable heat and bone-rattling cold
Rugged phone cases are bountiful. But, while they may offer some additional thermal protection, they're not built for true extremes. For that, you'd need either piles of insulation (too bulky) or some way to control the temperature inside the case. ThermoShield, one of over a dozen student-run companies vying for attention at Northeastern University's Husky Startup Challenge, went the latter route by slipping a Peltier element inside a slim plastic shell. The current prototype was built on a 3D printer and clearly created for an iPhone, but plans for the initial model should be simple enough to port to any handset. A standard watch battery powers the small plate and by controlling the voltage across it you generate either small amounts of heat or produce a slight cooling effect. A simple switch or slider would be used to manually control the flow of electrons. Trekking through the arctic tundra? Simply crank up the heat to keep your phone from freezing to death. Meandering through the Sahara? Take advantage of the Peltier's thermoelectric cooling properties to keep the Gorilla Glass from melting. According to one of the creators, Hannah Bialic, it wouldn't be terribly difficult to add automatic temperature control. Though, development costs could significantly drive up the price of the ThermoShield. The hardware could all be baked directly into the case itself or an app could be created that would automate everything. Obviously, though, relying on software would limit the case to working with a single device (and let's be realistic, it won't be your beloved Nexus 4). There's no telling when or if you'll actually be able to pick up one of these variable temperature shells, but you can add your name to the mailing list at the more coverage link.
DIY mini-fridge is just big enough for a can of soda, just odd enough to scare the FBI
Full-sized refrigerators are awfully easy to come by. Your average yard sale has one keg-sized example sitting in the corner (probably with the door removed), but what if you need something smaller? That's when you turn to instructables and learn how to put together this peltier-powered mini fridge. It has a trio of coolers (under)powered by a 55 watt, 5 volt power supply sprouting enough exposed transistors, wires, and fans to make it all look like something the Department of Homeland Security warned you about. It'll drop a can of soda down to a perfectly frosty 46F, but sadly nobody bothered to mention exactly how long that process takes -- hopefully a little less time than was required to stick the thing together with expanding foam. [Via Hack A Day]
Corsair's Peltier memory cooler gets demonstrated
Corsair's Dominator memory can apparently get quite hot, particularly if the overclocking bug catches you right. If a product shown off at CES hits the commercial market, however, everything is sure to stay cool. The Peltier cooling device is expected to play nice with second-gen Dominator modules, and when attached to existing heatsinks it can be used to cool a larger heat block in pretty much any water cooling setup. We know, you're probably scratching your head, but hop on past the break for a quick video demonstration.[Thanks, Ryan]
Miller to introduce self-cooling beer cans next year
We're always keen on technology that improves our beer consumption experience, whether it be coasters and pitchers that signal for help when you need a refill, or mugs that let you share a drink with distant friends. Obviously, then, we were understandably excited to learn that Miller will be the first domestic brewer to utilize Tempra's self-cooling cans for dropping your drink's temperature a minimum of 30º F on command. Self-cooling, and self-heating, technology have been around for awhile, but save for the homemade Peltier Beer personal beverage cooler, this is the first method we've seen to cool down your suds long after the ice in your cooler has melted. Tempra's I.C. Can works by drawing heat out of the beverage with a natural desiccant (drying agent), through a water gel coated evaporator, and into an insulated heat-sink container, once an internal vacuum-seal has been broken. Miller's self-cooled offerings should begin showing up in finer distributors nationwide starting sometime next year, and as you can probably imagine, a sixer of these high-tech brews isn't going to come cheap.
The Peltier Beer personal beverage cooler
Once in a while a homemade device comes along that is so darn handy that it's destined for mass market distribution. The Peltier Beer personal beverage cooler is one such device. Basically a drink holder attached to a cooling plate, a thermometer, and some batteries, this contraption cradles a pint glass and keeps your refreshment of choice chilly even in the hot sun. For now you'll still have to build your own (unless someone knows of a commercial product that does this), though luckily Per Oyvind Arnesen takes you through the build step-by-step if you follow the link. We're excited about this product, but we'll wait around for one that is USB-powered, you know, just cause so we get bragging rights while we drink at work. [Via Cnet]
