Comments on: Fill 'Er Up - But Make It Hydrogen

Car Of The Future May Run On Hydrogen, Not Gasoline; Lucky Few Win Chance To Rent

[aerhed]

Okay, here goes nothin''. I''ve been living off the grid on solar for sixteen years now. The average homeowner has like 2 to 4 times the surface area he needs on his own ROOF. All you gotta do is stick up a few KW worth of panels, buy a grid-tie inverter, call your power company and have them put in a net-meter (no charge). You will be making more power than you use. This is not bullsheet, if you call me a liar I will kill your neanderthal ***. There are tax credits to help ease the pain. If you tell me you can''t afford it then sell that stupid HUMMMer, your stupid four wheelers, and get your fat-***** out and walk for awhile.

[singingrick]

TruUSA

Did you actually read the books?

lol!

[edintex]

Hydrogen by weight has FOUR TIMES the energy potential as gasoline.
Posted by DemWatcher at 10:21 PM : Jun 22, 2008

Correction...The advantage of hydrogen as a fuel is that it stores approximately 2.6 times the energy per unit mass as gasoline, the disadvantage is that it needs about 4 times the volume for a given amount of energy. A 15 gallon automobile gasoline tank contains 90 pounds of gasoline. The corresponding hydrogen tank would be 60 gallons, but the hydrogen would weigh only 34 pounds. Big hydrogen tanks make big bombs in an accident!

[edintex]

Posted by DemWatcher at 10:15 PM : Jun 22, 2008

Hydrogen is combustible over a wide range of concentrations. At atmospheric pressure, hydrogen is combustible at concentrations from 4% to 74.2% by volume.
Hydrogen has the highest burning velocity of any gas.
Hydrogen has a very low ignition energy.
Hydrogen temperature increases as the gas expands.
Hydrogen that is allowed to expand rapidly from high pressure can self ignite.
Hydrogen burns with a nonluminous flame which can be invisible under bright light.

SOUNDS LIKE A SAFE FUEL TO ME! I''ll tell you what, YOU go ahead and let YOUR faily ride on top of a hydrogen tank. I''ll stick with gasoline. I bet many many other people feel the same way. THAT is why hydrogen has had a hard time catching on.

[demwatcher]

"Right now it takes 7 gallons of fossil fuel to make 8 gallons of hydrogen, that has the energy of 5 gallons of fossil fuel.
Hydrogen is not yet a vialble solution. Burning hydrogen produces water vapor, which is 84% of our greenhouse gas. How is that solving anything?

Posted by kesac4650 at 10:13 PM : Jun 22, 2008"

Where do you get your information, a cracker-jack box?

Hydrogen by weight has FOUR TIMES the energy potential as gasoline.

Using hydrogen as fuel recombines the hydrogen atom with an oxygen atom. This is how it was to START with if you use electrolysis (which is the most common method) to produce hydrogen.

So, kiddies, in total, you break even, generating the same amount of water molecules as you broke apart. You ARE NOT adding greenhouse gases, you are just replacing ones you took out of the system.

[demwatcher]

"Hmmm...Lets see...Hydrogen is stored in a porous solid, so it can''''''''t "explode", right? What if the tank is punctured, say in an accident, are you saying the hydrogen won''''t burn HOTTER AND FASTER THAN GASOLINE? Burning hotter and faster makes it what makes hydrogen "e-x-p-l-o-s-i-v-e"...get it. Hydrogen will always burn hottoer and faster than gasoline. Go back to school little boy.

Posted by edintex at 08:54 PM : Jun 22, 2008"

The rate of release of a gas from a porous solid in a tank is a fraction of the rate of a punctured tank without it. Limit the amount of available fuel and you limit the power of any possible explosion. You would most likely only get a flame burning at the point of puncture (if even that) and NOT an explosion.

Maybe YOU should START going to school, child.

[kesac4650]

Right now it takes 7 gallons of fossil fuel to make 8 gallons of hydrogen, that has the energy of 5 gallons of fossil fuel.
Hydrogen is not yet a vialble solution. Burning hydrogen produces water vapor, which is 84% of our greenhouse gas. How is that solving anything?

[rushlimpdrug]

"Experts say it''ll be a decade before hydrogen cars are widely available, if ever."

"if ever."

[edintex]

Gasoline is more expensive than hydrogen, edintex, you idiot. Hydrogen is stored in a porous solid, so it can''''t "explode".
Posted by badasssss at 07:10 PM : Jun 22, 2008

Hmmm...Lets see...Hydrogen is stored in a porous solid, so it can''''t "explode", right? What if the tank is punctured, say in an accident, are you saying the hydrogen won''t burn HOTTER AND FASTER THAN GASOLINE? Burning hotter and faster makes it what makes hydrogen "e-x-p-l-o-s-i-v-e"...get it. Hydrogen will always burn hottoer and faster than gasoline. Go back to school little boy.

[prelgovisk]

It takes electricity to make Hydrogen. In my country, Puerto Rico, ALL electricity is made from generators fueled by gasoline. It just seems to me, if all the cars are hydrogen or electric, they will still all get their power from gasoline burned by our generators The generators now do not fuel the elctric cars or send their electricity to Hydrogen plants, so if these cars come online it will mean more gas to make the extra electricity. Won''t we just burn the same amount of gas, but in a different place?