Comments on: Re: hydrogen fuel cell

By: ceriman

ceriman — Thu, 28 Aug 2008 17:15:42 +0000

you can:
1. compress to 10,000 psi, each gallon giving 1/5 the energy of 1 gallon of gasoline.
2. chill to ultracold -420 F. Each gallon of liquid H2 has 1/4 the energy of a gallon of gasoline.
3. Attach those atoms to long chains of carbon atoms, 8 carbon chains holding 18 hydrogen atoms is optimum, and that IS gasoline.

By: ceriman

ceriman — Thu, 28 Aug 2008 17:15:42 +0000

Requiring platinum and special membranes, H2 fuelcells for cars cost a half million dollars each, that’s why those cars aren’t available for sale. That’s also why Ballard dropped out of the automotive fuelcell market – a handful of research vehicles wasn’t enough to keep the business going.

By: Ishta5

Ishta5 — Thu, 28 Aug 2008 17:15:42 +0000

yes, it is compressed and chilled

By: Ishta5

Ishta5 — Thu, 28 Aug 2008 17:15:42 +0000

it is an electric car, the hydrogen is just an energy carrier

By: Ecoi1

Ecoi1 — Thu, 28 Aug 2008 17:15:42 +0000

Why forget hydrogen?… It has great potential. Granted, electric does too, but we should keep our options open for now. Plus, a hybrid still uses gas, which won’t be able to last forever. Oh well, the video itself is very neat.

By: Ecoi1

Ecoi1 — Thu, 28 Aug 2008 17:15:42 +0000

Some people feel electricity is better. I know they are working on a quick recharge method. If they can do it, then I might like electric better. But… depending on what’s in the battery… I agree tho, we should try and convert. I mean, why not start, if it’s a slow, but gradual one? I’d rather deal with it now, than have a crisis to deal with! (We have enough petrol to last a while – why not use that time to find an alternative?) At least we should start replacing our power stations

By: Ecoi1

Ecoi1 — Thu, 28 Aug 2008 17:15:42 +0000

One main reason is money. Another reason is our power stations would have to be cleaner to make this work entirely emission free. That’d take a lot of replacing. (Just in case you don’t know…) The hydrogen is obtained through a process called electrolysis. Basically you get water and run electricity through it. For each water molecule, you will get 2 hydrogen atoms, and an oxygen atom. So you have to use electricity to later use it. It’s basically convenient to refuel =).

By: grahammoorhead

grahammoorhead — Thu, 28 Aug 2008 17:15:42 +0000

So tell me, why are we not using these Fuel Cell engines to drive and fly. Why not work on making the most efficient modes of transport instead of all this mouth flapping about Carbon Footprints and bickering over petrol and oil? Hydrogen is going to be here ALOT longer than petrol and oil. So why can’t we cut to the chase?

By: lee5537

lee5537 — Thu, 28 Aug 2008 17:15:42 +0000

Some people r just afraid of change, while others welcome it..

By: JTS11d6

JTS11d6 — Thu, 28 Aug 2008 17:15:42 +0000

I have a question, how do you condense the hydrogen gas to a point where it will not take up too much space in the “fuel tank” When you pump it into the car, how is it compressed? And is liquid hydrogen possible to use in a fuel cell?