Posted on 08/22/2014 10:51:36 AM PDT by Red Badger
It is irrefutable that fossil fuel use produces CO2. It is irrefutable that CO2 contributes to global warming. Therefore, it is irrefutable that fossil fuel use contributes to global warming.
HOWEVER, that contribution is likely minuscule. The statement is factual. It is also meaningless, but journalists, liberals and a huge number of laypersons have no idea how thermodynamics or any other branch of science work.
This is a REALLY misleading article. It makes it sound like you can get all the hydrogen you want out of a AAA battery. WRONG!
The advance here is that they invented an affordable catalyst that makes hydrolysis work at low voltage. But you still have to provide as much energy to split the water into hydrogen and oxygen as you get back when you burn it again. And you always have to provide a bit more because of the Second Law of Thermodynamics.
Therefore, there is no net gain of energy here, or no new energy source, just a slightly better way of converting electrical energy into potential energy in the form of hydrogen gas.
....Therefore, there is no net gain of energy here,.....
Wouldn’t that depend upon how you rated the energy use of the hydrogen + oxygen?
Are we talking about BTU’s ?
Since hydrogen is essentially a type of battery, I wonder how its efficiency compares to other types.
Typical internal combustion vehicle is about 10% efficient and they take very expensive fuel.
Fuel cells are between 40 and 60% efficient and PEM cells take extremely expensive fuel, hydrogen. This is just about changing that from extremely expensive to very expensive.
Down the line, solid oxide fuel cells, the type that can be 60% efficient ,will be shrunk down to fit vehicles. They will require fuel of lower quality and expense than internal combustion engines.
Hydrogen is a passing fad.
“So, it’s Bushes fault?..................”
Isn’t it all ways in every thing? ;)
That's all fine and dandy... but when all the phosphorus runoff from your dishwasher detergent and battery bush fields start forming toxic algae blooms, there will be HELL to pay.
PEM fuel cells, the ones being developed for cars are only about 40% efficient, doesn’t sound all that great until you compare it to the cars we drive now, only about 10% of the energy ends up moving the car.
I came up with the same idea...
In 6th grade.
I guess you don’t need to be smart to get into Stanford.
...and they would be all like "thermodywhat?"
Of course, perpetual motion! Why didn't I think of that?
bump for later thx for the link
There is a dichotomy on the left between the sheeperals and those who consider themselves to be the elite.
Cui bono may be “who benefits”, but that benefit is different for each of these groups.
Sheeperals, as I said, benefit by getting their self-righteousness.
Elites, the truly evil, benefit by eliminating competition for resources.
Wow! I never heard that analysis before. It explains so much about why libs can't see reality. I'm gonna remember that thought. I might change "self-righteousness" to "self-worth", but the thought is very profound.
No, the oxygen atoms bind with the iron on discharge, and move back to the nickel hydroxide on charging. In a nickel iron battery, or nickel cadmium, or a NiMH cell, the oxygen atom moving between electrodes is how the charge is chemically stored and used. That is why all three cell types have the same operating voltage of 1.2 volts. Of course I’m taking this fuzzy info from memory of redox reactions, and from vague recollection of half cell potentials of various elements.
Are you freaking kidding me? I did that in fifth grade... and the setup looked the same. What is this, Amateur hour? Electrolysis is so simple you would be laughed out of a science fair.
Modern diesel engines have about 50% thermal efficiency.
Just sayin'.
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