Talk:Fuel cell

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Electro-galvanic fuel cell

Electro-galvanic fuel cells have been used for decades for measuring oxygen concentration in a breathing mixture. Would a short description or a reference to the article / use be appropriate? Especially as to how the concentration of oxygen gives a difference in voltage, which is converted to a displayed oxygen concentration. --Seejyb 20:12, 20 May 2006 (UTC)[reply]

They have their own article Electro-galvanic fuel cell--DV8 2XL 20:26, 20 May 2006 (UTC)[reply]

Removed image

Who removed the image from commons ? its a GFDL licensed image from the French wiki. Fuelcell.en.jpg Reg .Mion 05:46, 16 June 2006 (UTC)[reply]

water fuel cell

1989 A so-called water fuel cell is an unrelated claim of a perpetual motion device, which in fact was not claimed to function the way a fuel cell does.

If the water fuel cell has its own article it could be referenced on, it makes people more critical about real inventions and hoaxes, //Enron/Tesla Motors.Mion 16:31, 19 June 2006 (UTC)[reply]

Wikipedia's job is not to make people critical of hoaxes. This belongs in the disambig page, which is why it was removed. Chris Cunningham 17:36, 11 August 2006 (UTC)[reply]

In which disambig page ? Mion 19:14, 11 August 2006 (UTC) , and read the first part of the sentence, If the water fuel cell has its own article it could be referenced on, the second part was my personal view. Mion 19:14, 11 August 2006 (UTC) thats why i put it back.[reply]

and another one, there are loads of patents given on the design, it has the design of a fuel cell, the fact that we didn't see one working , tja.Mion 19:14, 11 August 2006 (UTC)[reply]

It isn't a real fuel cell, the disambig tag at the top of the page links to the article in question, and you haven't given a justification which fits with the goals of the project. It's pretty disingenuous of you to ask "which article" without actually doing a search for "water fuel cell". Chris Cunningham 21:53, 11 August 2006 (UTC)[reply]

ok, i missed the top link to the disamb page, and which article, did i ask you ? well , i think it still belongs in the history section of fuel cells, or are we making only an article about fuel cells that where succesfull ? in that case there is more to clean out. reg. Mion 23:24, 11 August 2006 (UTC)[reply]

This article is about fuel cells which fit the description given in the intro, i.e. which take hydrogen and oxygen as fuels. The water fuel cell works the other way around, so it isn't a "fuel cell" as per this article. It is mentioned, in the disambiguation tag. It isn't part of the history of fuel cells as per this article. Chris Cunningham 07:22, 12 August 2006 (UTC)[reply]

Yes, which takes hydrogen and oxygen as fuels to create a current. see Reversible fuel cell. reg. Mion 11:26, 12 August 2006 (UTC)[reply]

A speculative stub does not an argument make. Chris Cunningham 12:46, 13 August 2006 (UTC)[reply]

well, can the process be reversed in a fuel cell? Mion 13:45, 13 August 2006 (UTC)[reply]

DCFC

http://www.wired.com/news/planet/0,2782,69713,00.html Mion 13:12, 16 July 2006 (UTC)[reply]

Turning off vs. continuous operation

If the water is not evaporated quickly enough, it reduces efficiency, and if it is evaporated too fast, it can crack the fuel cell. So, if used in, say, an automobile, does it have to keep operating all the time even when the car is parked, or can it be shut down, unlike the ones used in the Apollo space missions? (Jim Lovell on Apollo 13 knew that if they shut down the fuel cells as Mission Control told them to, they could not be restarted.) GBC 17:21, 11 August 2006 (UTC)[reply]

Yes, they can be started, but it will take some time before they operate at full efficiency (depending on type: SOFC take a full 8 hours!). More than cracking, the dry-out causes an increase in internal resistance (it just does not work), but such PEMFC systems usually come with an humidifier. As for the Apollo, they used quite primitive alkaline FC technology... I do not know the details, but they were probably short-lifespan gizmos (after all they had to last for a few days only) assembled thinking more about saving weight than flexibility in usage. Come think of it, there is at least one type that must be operated continuously, the PAFC (phosphoric acid): below 41˚C the acid solidifies, and good luck warming it up again... but PAFC are almost ignored nowadays.

Fuel cell definition

Oxford dictionary: • noun:

a cell producing an electric current direct from a chemical reaction.

[[1]]Mion 11:52, 11 September 2006 (UTC)[reply]

the indefinite article does not denote that any device matching that short description is a fuel cell, any more than a definition of a crow as a "black flying object" implies that cannonballs are crows. Consensus has been shown to be in favour of leaving this article only for devices matching the scientific definition of a fuel cell as a device which creates electricity through oxidation. Chris Cunningham 14:18, 11 September 2006 (UTC)[reply]

I cited a reference, the Oxford dictionary: can you give me an equal valuable reference on the scientific definition of a fuel cell ?

If consencus has been reached, ok , where can i find it ? if not the first part of the article has to be rewritten.

or the other way around, if i cant hold my argument i am going to revert it myself. Mion 14:29, 11 September 2006 (UTC)[reply]

Try some specific literature like "Fuel Cell System Explained" by Larminie and Dicks, it is a common textbook in the subject. You should find it in any university library.