ThermoelectricGenerator
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Hatsuden-Nabe thermoelectric cookpot keeps your iPhone battery charged
It will be difficult to charge your iPhone after the zombie apocalypse destroys the power grid, but a new product from TES NewEnergy Corporation can make topping off your battery as easy as heating up a can of SpaghettiO's over an open fire. The company has created the Hatsuden-Nabe, a US$278 cooking pan with a built-in USB port and a thermoelectric device to turn wasted heat into power. As the company notes, the heat of a wood campfire could reach over 900°F, but water requires only 212°F to boil, so a lot of the extra heat is either retained in the pot or escapes to the atmosphere, wasted. The cooking pan converts some of that waste heat into power that is then used to charge up your electronic gizmos. An iPhone can be fully charged in just 3 to 5 hours. Since every minute counts when attempting to escape a zombie attack, the Hatsuden-Nabe could be just the thing to keep you moving. Competing solar chargers take longer to do their job and are dependent on bright and constant sunlight. This charger pot can also let you cook up some stew or brew a nice cup of tea to energize you for the next round of zombie-slaying. All attempts at bad humor aside, this actually is a rather good idea for an emergency or camping kit. There's no word on when the Hatsuden-Nabe will be available outside of Japan.
Team at Purdue University working on high-temp generators to suck power from car exhaust
You know all that gas spitting out the exhaust of your car? Not only is it full of carbon monoxide and other things you shouldn't breathe, it's also full of heat. Heat is wasted energy, and students at Purdue University, led by mechanical engineering professor Xianfan Xu, are working to capture it. With some funding from General Motors the team is working to create better thermoelectric generators, or TEGs, that work at much higher temperatures than those we've seen before. A current Purdue prototype works at 700C, or 1,300F, which could be found behind a car's catalytic converter and generate enough electricity to reduce fuel consumption by around five percent. Future versions would work at higher temperatures and offer better results. Last year BMW indicated it is working on similar tech with deployments coming as early as 2014, and so now the race begins, though the culmination of their efforts will surely look something like this.
Inhabitat's Week in Green: solar buildings, solar stadiums, and an algae-powered lamp
The Week in Green is a new item from our friends at Inhabitat, recapping the week's most interesting green developments and clean tech news for us. The past week Inhabitat saw solar-powered transportation soar into space as Japan successfully unfurled the world's first solar sail aboard its Ikaros spacecraft. We continued our transportation coverage by taking a took a look at a futuristic plant-powered photosynthetic concept car that seats riders within an enclosed jungle canopy. However if the Inhabitat editors commuted to work, it would probably be via these amazing solar-powered shrub cars! In other news, the world of architecture is heating up with the onset of summer as countries around the globe gear up to unveil high-tech sun-powered homes at the European Solar Decathlon. This week we took a look at two of our favorites - the solar shelled Armadillo Box House and Finland's hyper-insulated Luuku House, which is expected to generate more energy than it consumes. We also celebrated the launch of the 2010 World Cup by taking a look at the technologies behind five stunning green stadiums that will be hosting this year's games in South Africa. Speaking of the World Cup, this week were also excited to see the unveiling of a brand new version of the sOccket, an energy-generating soccer ball that scores a goal for green power in developing countries. We also took a look at a cheap solar-powered refrigerator for the developing world that can be assembled using local materials and could save millions of lives by storing and distributing vaccines. Renewable energy was also a hot topic this week -- the UAE is blazing a trail with plans to construct a record-toppling solar plant that eclipses the size of every photovoltaic farm to date. We also saw home-grown algae power make its domestic debut in this gorgeous green Latro Lamp, which is fueled by a pond-scum powered bio-battery. And renewable energy took to the streets this week as telecom provider Orange unveiled a set of spiffy set of thermoelectric galoshes that charge your cellphone using heat from your feet. Finally, this week we unveiled some incredible new uses for everyday materials as we announced the grand-prize winners of our 2010 Spring Greening DIY Design Competition. Speaking of innovative examples of repurposed design, we were also blown away by this open-source printer made from LEGO bricks and a felt-tip pen. And if you insist on continuing to use a standard printer, you can rest assured that there's an inspired re-use for those expired ink cartridges - Australia recently unveiled a bike path made from them!
Body powered circuits developed by Fraunhofer Institute
Our favorite German researchers over at the Fraunhofer Institute have developed "entire electronic systems" capable of operating battery-free from body heat alone. The picture above shows a wireless transmitter powered by the human hand. The 200 millivolts required to drive the device is supplied by a thermoelectric generator (TEG) which extracts electrical energy from hot and a cold temperature differentials of just a few degrees Celsius. Of course, the application processor alone in modern handhelds requires about 1W to operate so 2mW is a long way off from powering our portable electronics. Still, progress is progress.
