Obama’s oil flimflam

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stoneyfockbrook

New Member
cannabineer said:
Neither hydrogen nor gasoline are explosive. Hydrogen does however have an interesting property ... hydrogen/air mixes across a wide ratio of components will tend to detonate.
My energy density comment didn't refer to compressed hydrogen, which would require a very heavy tank. I was thinking of the liquid, which is about 1/12 as dense as water. cn
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The flames from a hydrogen fire are invisible
Awesome
You be flipping around burning up and people would think you are insane or break dancing
 
sync0s

sync0s

Well-Known Member
I don't understand why their not using electrolysis in hydrogen engines. That would be pretty sweet to pump your car full of water and go about your business.

edit:
It just dawned on me. Theres no money in the ability to shove a hose in your car and go..
 
cannabineer

cannabineer

Ursus marijanus
sync0s said:
I don't understand why [they're] not using electrolysis in hydrogen engines. That would be pretty sweet to pump your car full of water and go about your business.

edit:
It just dawned on me. There's no money in the ability to shove a hose in your car and go..
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The real reason is that water is hydrogen ash. The amount of energy needed to split a tankful of water is simply enormous (as a direct consequence of hydrogen being such an energetic fuel). Were that energy available in or to the vehicle, direct electromotive propulsion would win every time. cn
 
Harrekin

Harrekin

Well-Known Member
cannabineer said:
The real reason is that water is hydrogen ash. The amount of energy needed to split a tankful of water is simply enormous (as a direct consequence of hydrogen being such an energetic fuel). Were that energy available in or to the vehicle, direct electromotive propulsion would win every time. cn
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Unless they can get fully enclosed hydrogen fuel cells to a practical size and usability, the car would then use solar power to split the water giving basically a water powered car.
 
Carne Seca

Carne Seca

Well-Known Member
Harrekin said:
Unless they can get fully enclosed hydrogen fuel cells to a practical size and usability, the car would then use solar power to split the water giving basically a water powered car.
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I thought that was as technology out of our reach at the moment.
 
sync0s

sync0s

Well-Known Member
cannabineer said:
The real reason is that water is hydrogen ash. The amount of energy needed to split a tankful of water is simply enormous (as a direct consequence of hydrogen being such an energetic fuel). Were that energy available in or to the vehicle, direct electromotive propulsion would win every time. cn
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Everywhere I'm looking I see that it only requires around 2-3 volts of energy..

Unrelated quote:

But, the more important measurement of hydrogen electrolysis is how efficiently it creates energy. Water electrolysis in which the hydrogen is subsequently burned is measured at anywhere from 50-94% (though the energy required to create the electricity is not included in this measurement).

The ideal situation for hydrogen electrolysis is to have it replace ordinary gasoline and diesel engines. There are some problems with this, however. For one, hydrogen is highly combustible and highly unstable when stored. Remember the Hindenburg, the hydrogen blimp that burned to the ground due to one spark? Recent studies indicate that the hydrogen in the Hindenburg wasn't the first to burn as the outer skin caught fire and burned first and much more quickly than the hydrogen, but the perception of driving a "hydrogen bomb" on wheels continues.
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Harrekin

Harrekin

Well-Known Member
Carne Seca said:
I thought that was as technology that is out of our reach at the moment.
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Their size and the cost of the catalyst "wafers" they use put them out of reach for now, but I'm typing this on an iPhone and 20 years ago the smallest computer was the size of a dorm room.
 
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stoneyfockbrook

New Member
Harrekin said:
Their size and the cost of the catalyst "wafers" they use put them out of reach for now, but I'm typing this on an iPhone and 20 years ago the smallest computer was the size of a dorm room.
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You are not that old
I spent 1600 bucks on my first 386 computer over 20 years ago and its no bigger than the tower on your desk right now
Came with a 3.5 a 5.5 inch floppy drive a cd drive and a whopping 32 mb of memory max
 
NLXSK1

NLXSK1

Well-Known Member
Harrekin said:
Their size and the cost of the catalyst "wafers" they use put them out of reach for now, but I'm typing this on an iPhone and 20 years ago the smallest computer was the size of a dorm room.
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Well, to be fair... it was about 50-60 years ago that the smallest computer was the size of a dorm room.

20 years ago was 1992 and I got an apple II+ around that time.

Of course a computer with the processing power of your I-phone was the size of a dorm room :P
 
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stoneyfockbrook

New Member
I was networked to a computer in high school in 1977
A teletype machine with a 600 baud modem hooked up to the University of illinois Urbana
everything was in Basic
and a Snoopy calendar took 15 minutes to print out
Since it was just a telephone hooked up to 2 cups
You could also dial out long distance phone calls
 
NLXSK1

NLXSK1

Well-Known Member
stoneyfockbrook said:
I was networked to a computer in high school in 1977
A teletype machine with a 600 baud modem hooked up to the University of illinois Urbana
everything was in Basic
and a Snoopy calendar took 15 minutes to print out
Since it was just a telephone hooked up to 2 cups
You could also dial out long distance phone calls
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By 83 we had a computer network in my high school but when I went to college we were coding batch files to be processed on a mainframe and printed out complete with results whenever the computer got around to it.
 
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stoneyfockbrook

New Member
NLXSK1 said:
By 83 we had a computer network in my high school but when I went to college we were coding batch files to be processed on a mainframe and printed out complete with results whenever the computer got around to it.
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I was the guy who charged you money for the printouts of your projects 3 years after that
 
Harrekin

Harrekin

Well-Known Member
NLXSK1 said:
Well, to be fair... it was about 50-60 years ago that the smallest computer was the size of a dorm room.

20 years ago was 1992 and I got an apple II+ around that time.

Of course a computer with the processing power of your I-phone was the size of a dorm room :P
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Fine I'll admit, it was over 20 years ago, the point still stands tho, some day we'll harness hydrogen properly; fusion, fuel-cells and high pressure liquid hydrogen are the goal in my eyes.
 
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