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The Princeton, N.J.-based company is working on a material that, when combined with another substance, will generate electricity with ambient room heat, Andrew Surany, the company's president, told CNET News.com this week.
Conceivably, one could take that material and fashion it into a passive fuel cell that can create power by just sitting in an ordinary room heated to about 72 degrees Fahrenheit, leading to self-charging electronic devices.
"It derives heat from the environment" and converts it to electricity, Surany said. "I'm talking about embedding cells into doors or the panels on a car. In a laptop, I am talking about embedding cells into the case."
And no, it won't suck out all the heat like some freakish invention from Mr. Freeze on the old Batman show. As long as the sun doesn't explode or Earth doesn't get plunged into nuclear winter, it conceivably could produce electricity without effort indefinitely.
Theoretically, one could heat the material, too, to get better results. If you heated one square meter of the material to 100 degrees Celsius, or the boiling point of water, the material could absorb 1.2 kilojoules of heat energy. Converting 5 percent of that heat to electricity would give you enough energy to power a car, Surany asserted.
So how does it work? Syrdec is trying to combine something called the Seebeck effect and the product of nuclear fusion. In the Seebeck effect, electric current can be generated from temperature differentials. Put metals or semiconductors near each other that exist in radically different energy states and you get power. It's not just theoretical: Germany's EnOcean, another energy-harvesting specialist, has come up with sensors that get power from the temperature differentials between the interaction material that makes up a pipe filled with hot gases and a material heated to room temperature.
Now the nuclear fusion part: Syrdec says it understands a way to artificially alter the natural energy state of a particular undisclosed material. Instead of being in a "normal" energy state at room temperature, the altered material is in a normal energy state at, hypothetically, minus 40 degrees Celsius or colder. Thus, when this material is put into a room-temperature environment, it's excited. Put that next to a material with a much higher natural energy state and you get the Seebeck effect.
"We are looking to create an artificial energy state inside the molecular structure of the substrate," Surany explained. "The materials are unique and specialized. They were brought to our attention through nuclear fusion research."
Outlandish as it sounds, the CEA, the atomic energy agency of France, has already concocted a microgenerator that can produce electricity at ambient temperatures via the Seebeck effect. The thermoelectric generator in CEA's prototypes has an output of 4 milliwatts per centimeter square for every (Celsius) degree difference between the two materials. The India Institute of Science also has examined ways of generating power via the Seebeck effect with changes in pressure.
Syrdec's fuel cell doesn't exist yet, but theoretically it's possible, Surany said. (The material altered by nuclear fusion, by the way, isn't radioactive.) Even if one can be made, there are other complications. How small could such a fuel cell be? How does it do with recharging?
Although the fuel cells would ultimately produce electricity by just sitting around, producing the materials for the fuel cells takes a lot of power. "Manufacturing is energy-intensive," Surany said.
See more CNET content tagged:
fuel cell,
fusion,
material,
electricity,
energy





Next time, CNet, how about calling a physicist before reporting on this woo? I wonder if you're not being used to perpetrate stock fraud or something...
Maybe you could specify exactly why you think that..
Don't get me wrong, I don't think this product will ever make it into consumer's hands because the materials used and the manufacturing process will be far too expensive for anyone wanting to power a laptop. Also, I'm doubtful of the reliability and whether it could be made small enough to be practical.
The mention of a material maintaining an energy state from a a different temperature is just...strange!
Cnet, a physicist's review of the claims would be an excellent addition to article.
What I'm picturing is a device that sets up a Seeback-like state, but doesn't immediately discharge the electricity and instead stores it for later discharge. It would be a battery that gets recharged by heat and kept that energy stored in some state even when the material has returned to room temperature for later retrieval? I dunno, just guessing.
Of course it's impossible to generate electricity with no temperature differential, but maybe there's something interesting there like the equivalent of a solid-state fuel cell...
You can get power through temperature differentials, like with RTGs, but the key word here is "Differential" If the whole system is at room temperature and nothing is producing heat (like through nuclear decay) there's no differential.
Conventional power plants also get power from heat through the rankine cycle, but again you need a fairly high heat source.
It seems to me these people are trying to defraud someone.
It depends on how much of a differential you need and how they create it to begin with. Once going though it should sustain. Unless you forget to pay your heat bill. Ultimatly it's converting heat you generated into power for your device.
energy), those of you who have used that to cool off sensitive parts
on boards will know what component I am talking about. In rare
cases you need to keep parts warm when in cold environments.
Somethings not quite right about this story, there is something
missing for it to function properly, if the story is legit.
This sounds an awful like phase transitioning of energy between a low potential and a high potential object, remember that?
While I would like to think that this would solve the world's energy needs, even an optimist must note three things.
1) The conversion rate would be so poor that you'd need to move to Phoenix and to coat your roof with this stuff, just to recharge your cell phone.
2) This wouldn't last forever, the material would loose its potency with time.
3) With our current level of technology the cost of such a material would make it so much less commercially viable than regular batteries. Nobody would market it and nobody would be able to afford.
Nice idea, but too startreky.
Also, the device is not a "fuel cell". Fuel cells use fuel and an oxidizer in a chemical reaction to produce electricity. Fuel cells do not rely on temperature differences to produce their power, and are much more efficient than heat powered devices.
France, has already concocted a microgenerator that can produce
electricity at ambient temperatures via the Seebeck effect."
- living struggle
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by letraspedia
November 4, 2007 11:56 PM PST
- Into Thin Air by Jon Krakauer Everest deals with trespassers harshly: http://www.letraspedia.com the dead vanish beneath the snows. While the living struggle to explain what happened.
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