Carne Seca
Well-Known Member
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The flames from a hydrogen fire are invisibleNeither 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
You're not taking into account clothing fabric and your flesh that would be burning. That won't be invisible.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
There is no English term for "a hydrogen spill". (None is needed.) cnThe flames from a hydrogen fire are invisible
Awesome
You be flipping around burning up and people would think you are insane or break dancing
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. cnI 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..
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.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
I thought that was as technology out of our reach at the moment.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.
Everywhere I'm looking I see that it only requires around 2-3 volts of energy..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
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.
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.I thought that was as technology that is out of our reach at the moment.
good point.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.
You are not that oldTheir 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.
Well, to be fair... it was about 50-60 years ago that the smallest computer was the size of a dorm room.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.
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.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
I was the guy who charged you money for the printouts of your projects 3 years after thatBy 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.
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.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
(I get the ridiculous sentiment in my comment, but whatever) They use it in small RC car kits as well as in a lot of industrial applications.I thought that was as technology out of our reach at the moment.