Comments on: Creating power out of thin air

Imagine a material that can suck in heat from the environment and power a notebook. A New Jersey company is aiming to do just that.

[micahlandis]

Wide Range

I live in Vegas, you place this on car covers and roofing tiles you could power houses and plug in hybrids. Pretty sweet deal.

[chuchucuhi]

only time will tell

Well hopefully something comes of this it seems like it would be nice enough to add to the global alternative energy basket. I guess everything will just keep chiseling away.

[Harlan879]

No freakin' way

This clearly violates the laws of thermodynamics. And the "altering the energy state" thing sounds like magic, and not in a good way. This is flat impossible.

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...

[Harlan879]

"Syrdec"??

Also, there's no such company as Syrdec. At least, Google doesn't know about it.

[assman]

laws

It in no way violates the laws of thermodynamic.. do you know what you're talking about? Heat is energy, and there is plenty of energy in the air on Earth. I would assume that this device would also cool the air by counter-effect, due to absorbing the heat-energy, so I'm not seeing any laws broken.

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.

[jgt10]

maybe not laws of thermodynamics, but something is fishy.

For the Seebeck effect there has to be a temperature difference. Thus having both materials at room temperature isn't going to work.

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.

[samkass]

Seebeck + storage?

Just to play the mental game, I'm trying to assume that they in fact have a way to store energy and later generate electricity with that energy, and that perhaps the writer didn't understand something.

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...

[alegr]

Snake oil, anybody?

This conpany will indeed succeed in generating... money from the investors' pockets. Don't expect anything else, though.

[Renegade Knight]

Fusion

It seems that the fusion they need is the stumbling block from taking it out of the lab to normal reality.

[basraw]

Sony exploding batteries perfect for maximum heat...

All those sony batteries would be perfect for heat generation.

[gatornuke]

This is complete baloney

As a nuclear engineer, I'd have to say these claims are absolutely ridiculous. When you fuse Triutium and/or Deuterium you could get He5, He6, or He7. He6 and He7 have very short half lifes and eventually decay into Li6. He5 decays into He4 almost imediately. There's nothing magical here that can make electricity out of nothing.

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.

[Renegade Knight]

You Said It.

It's the heat differential. If the outer layer draws heat, something cools off. If you can use that to create the differential, you then have potential.

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.

[troppp]

"Imagine a material that can suck..."

I think this is achievable.

[Travis Ernst]

Somethings wrong

the rough concept sounds like the reverse of heat sink (that uses
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.

[krosavcheg]

Saw this...On Stargate..pfft!

Artificial thermal state? Isn't that like making jello in the fridge and then putting it on the counter and claiming it's still at 45 degrees a couple of hours later because it's still solid? No, these clowns need to go back to high school and study thermodynamics

[alegr]

Why high school

The only thing the guys need to know is VC BS 101 (Venture Capitalists Bull Schitting).

[spothannah]

Thin Air

I think I read something about perpetual motion machines. Hmmm... Like they don't exist? Hey? Where's my free lunch?

[Mousefinger]

^This

^This.

[perfectblue97]

Basicly....

Basically, you have a material that a absorbs heat energy and transforms it to electrical energy.

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.

[albizzia]

Errors in reporting

This device (and other similar devices) do not convert heat into energy, it converts a temperature difference (a heat flow from warmer to cooler areas) into energy. If both sides are at the same temperature, it produces no power regardless of how high the temperature is. The power output is determined by the rate of heat flow, and the efficiency is effected by the temperature difference - the greater the difference, the more efficient it is. Still, efficiency and power output of Seebeck devices is quite low.

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.

[reyes89]

so

"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."

[letraspedia]

living struggle

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.
Kallos - http://www.letraspedia.com/letras/e3.php