hydrogen fuel cells.

[shortie]

Does anyone know anything about this technology.

[username_taken]

They convert Hydrogen and Oxygen into Water + energy. And can also covert Water + energy into Hyrogen and Oxygen.

Jaycar actually has a few kits available now for little 30mw ones

[jeff f]

did you get one of those e-mails to shortie

[shortie]

No email. We just took on a new product at work. Hydrogen Fuel cell trainers and im the new product manager for it.

[obone]

shortie wrote:

No email. We just took on a new product at work. Hydrogen Fuel cell trainers and im the new product manager for it.

What is the new product? I'm intrigued.

Joel

[shortie]

A couple of diferent products. Ranging from reversible fuel cell powered cars with full teaching course notes and experiments for students.(Public and high school level) High end trainers and class sets of smaller trainer for students.(High School to Early Uni level). Very high end trainers (Engineering LEvel).

[faulked]

all i know is 2 stainless plates a short distance apart imersed in tap water feed a dc current throught the plates and hydrogen emerges this then goes bang when lighter added ps kids dont do this at home alot of people have died doing it even from just a glass of water

in theory a litre of water would power a v8 to sydney but cracking the hydrogen uses more energy than you get from the hydrogen so youd run out of elictricity before youd gewt to sydney . pity no ones addes sollar to the cracking system to get some energy back for free, id love a hydrogen powered boat

ooh yeh apparently bmw does a hydrogen system for your car but the gas tanks are horrificaly priced due to safety concerns . i havent verified this though

jason

[shortie]

Yes the way you described making hydrogen is called electrolisis.

this is done safely in an instrument called an electroliser. It Stores the hydrogen and the oxgen that is produced.

It uses distilled water as the impurities in tap water can kill a Fuel Cell.

The fuel cell is basically the reverse. It combines Hydrogen and oxygen and got get water and electricity out.

Hydrogen is combustible but has less bang than fuel so not as much power. Hence why they convert it to electricity.

Hydrogen can be stored in a vessel as a solid safely instead of in its gaseuos state which can be dangerous.

In a hydrogen society we will be able to purchase hydrogen at a servo like any other petrol.

[kriso]

im interested in this as rust is a bi product of electrolisis, honda's prototype you get your hydrogen station to have in your garage if you buy the car. wouldnt servo's love that!

[kriso]

sorry my bad its oxydisation that is rust.

[faulked]

electrolysis is

Electrolysis involves the passage of an electric current through, in general, an ionic substance that is either molten or dissolved in a suitable solvent, resulting in chemical reactions at the electrodes. The positive electrode is called the anode, and the negative electrode is the cathode.[1] To be useful for electrolysis, the electrodes need to be able to conduct electricity, and metal electrodes are generally used. Graphite electrodes and semiconductor electrodes are also used. An ionic compound (or covalently bonded in the case of acids) is dissolved with an appropriate solvent, or melted by heat, so that its ions are available in the liquid. An electrical current is applied between a pair of electrodes immersed in the liquid. Each electrode attracts ions that are of the opposite charge. Therefore, positively-charged ions (called cations) move towards the electron-emitting anode, whereas negatively-charged ions (termed anions) move toward the positive cathode. The energy required to separate the ions, and cause them to gather at the respective electrodes, is provided by an electrical power supply. At the electrodes, electrons are absorbed or released by the ions, forming a collection of the desired element or compound.

in other words ugh its bad for me tinny ugh where beer :laugh:

[Cowfish13]

kriso wrote:

sorry my bad its oxydisation that is rust.

Oxidisation of Iron is rust. Other metals corrode, but sometimes the corrosion is impervious to water and they stop corroding once the surface is covered (ie Zn, Al)

No guesses as to what exam I had today:silly:

So basically these hydrogen fuel cells are electrochemical cells?

[shortie]

Cowfish13 wrote:

kriso wrote:

sorry my bad its oxydisation that is rust.

Oxidisation of Iron is rust. Other metals corrode, but sometimes the corrosion is impervious to water and they stop corroding once the surface is covered (ie Zn, Al)

No guesses as to what exam I had today:silly:

So basically these hydrogen fuel cells are electrochemical cells?

Yes electrochemical

[kriso]

faulked wrote:

electrolysis is

Electrolysis involves the passage of an electric current through, in general, an ionic substance that is either molten or dissolved in a suitable solvent, resulting in chemical reactions at the electrodes. The positive electrode is called the anode, and the negative electrode is the cathode.[1] To be useful for electrolysis, the electrodes need to be able to conduct electricity, and metal electrodes are generally used. Graphite electrodes and semiconductor electrodes are also used. An ionic compound (or covalently bonded in the case of acids) is dissolved with an appropriate solvent, or melted by heat, so that its ions are available in the liquid. An electrical current is applied between a pair of electrodes immersed in the liquid. Each electrode attracts ions that are of the opposite charge. Therefore, positively-charged ions (called cations) move towards the electron-emitting anode, whereas negatively-charged ions (termed anions) move toward the positive cathode. The energy required to separate the ions, and cause them to gather at the respective electrodes, is provided by an electrical power supply. At the electrodes, electrons are absorbed or released by the ions, forming a collection of the desired element or compound.

in other words ugh its bad for me tinny ugh where beer :laugh:

so pretty much the same effect when a car battery is put on charge

[Cowfish13]

Yeap, the reverse of the electrochemical process. The electricty running throught the cell restores the electrodes by giving or taking electrons from the cations and anions in solution

[kriso]

hahaha, this is funny i put it in layman/mechanics terms and cowfish puts it in learned scientific terms hahaha

[Cowfish13]

kriso wrote:

hahaha, this is funny i put it in layman/mechanics terms and cowfish puts it in learned scientific terms hahaha

I could into way, way more detail about why it happens, what the reactions are called, what gets transferred to what:laugh:

I'm glad that exam is done now:P

[werewolf]

from the recent news: http://www.abc.net.au/news/stories/2008/06/16/2276538.htm

[mangler]

I wouldn't worry with diesel-gas or hydrogen fuel cells,

Surely you could get better economy and performance with a set of high quality aftermarket Piston Return Springs http://kalecoauto.com/index.php?main_page=product_info&cPath=3&products_id=27

And combined withan O pipe the extra back pressure would be most beneficial http://kalecoauto.com/index.php?main_page=product_info&cPath=1&products_id=2

Then of course, for those that want it all you would need a flux capacitor http://kalecoauto.com/index.php?main_page=product_info&cPath=6&products_id=28

Cheers,

Matt

[ellicat]

mangler wrote:

I wouldn't worry with diesel-gas or hydrogen fuel cells,

Surely you could get better economy and performance with a set of high quality aftermarket Piston Return Springs http://kalecoauto.com/index.php?main_page=product_info&cPath=3&products_id=27

And combined withan O pipe the extra back pressure would be most beneficial http://kalecoauto.com/index.php?main_page=product_info&cPath=1&products_id=2

Then of course, for those that want it all you would need a flux capacitor http://kalecoauto.com/index.php?main_page=product_info&cPath=6&products_id=28

Cheers,

Matt

Love the $175,000 price on the flux capacitor:blink: (whatever that is)

But best of all is the returns policy on it

"Special return policy: If you are not 100% satisfied, you may return this product for a full refund, in no LESS than 30 days before you purchase it!":laugh: :laugh:

[Bommie]

go back to the future

[ellicat]

I was starting to wonder if it was written by either an ebay seller or someone else that may be related to a certain other current thread:laugh:

[mangler]

As Bommie said, flux capacitor = time traveller thing (off back to the future)

[obone]

Ah it's all very interesting stuff!

It's always the laws of thermodynamics that screw things up! In simple terms,

1. You can't win.

2. You can't break even.

3. You will always lose.

:laugh:

Joel