Chicken Feathers May Hold Key To Hydrogen Storage
pitterpatter writes "A researcher trying to find a use for them claims that after being heated enough to carbonize, chicken feathers hold as much hydrogen as carbon nanotubes do. So chicken feather charcoal might solve the storage problem for the new hydrogen economy. One problem down, half a zillion to go."
Chicken McNuggets.
We can finally power our homes with chicken.
*pulls up to full service Hydrogen fueling station*
"Just put three Leghorns in the tank."
Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
Hydrogen will burn just fine in a conventional internal combustion engine. The modifications to a modern gasoline-powered engine to make it run on hydrogen are essentially the same as those to make it run off compressed natural gas. I’m sure many of you have noticed fleet vehicles with a CNG sticker on them; though not widespread, the conversion isn’t exactly uncommon, either.
There are three main problems with converting to hydrogen. First, though hydrogen has much more energy density per unit of mass than gasoline, it has much less energy density per unit of volume in any of the ways it’s currently practically available. Second, for similar reasons, getting a sufficient density of fuel / air mixture to the pistons is a bit of a challenge and generally requires turbocharging, pressurized fuel lines, etc. (Or, you can live with an underpowered vehicle.) The last problem, of course, is producing hydrogen.
If the claims of TFA are accurate, then we may actually be on the verge of solving all three problems.
If we’ll soon see affordable high-capacity tanks, that solves the first problem. The second can be dealt with by making use of many of the high-performance tricks we’re already familiar with.
The last...well, hydrogen can trivially be made by running a current through water. If you’ve got a photovoltaic array on your roof, you can analyze water and get essentially free hydrogen. While we’ll never see cars powered in “real time” by the sun, it’s quite easy make in a couple days as much hydrogen as you’ll need to power your car for a week of normal driving.
Put all these pieces together, and in a few years or so real solar-powered cars may be as common as home-converted home-brewed biodiesel cars are today.
Cheers,
b&
All but God can prove this sentence true.
According to an interview with a researcher or the lead researcher or something like that, it's not as much as carbon nanotubes or other existing solutions, but it's "enough" and it's vastly cheaper. All existing solutions are impossibly expensive, that's the big deal here. Something like 6 billion pounds of chicken feathers are produced as by products of the chicken industry every year with zero practical reuses.
The same interviewee goes on to explain that there are a number of other possible uses of chicken feathers as a high grade material component, in everything from car body pieces to wind mill blades for wind power. I think it's an excellent effort and I hope it bears fruit.
I read the script, and I think it would help my character's motivation if he was on fire. -Bender
Since the chicken feathers have only to be carbonized once, and can repeatedly act as hydrogen storage... your question is pointless.
"There is more worth loving than we have strength to love." - Brian Jay Stanley
I wouldn't say 'about a zillion to go.' I would say one big problem to go. That problem is platinum. We simply have not been able to eliminate the need for platinum in fuel cells to extract the electricity from the reaction of hydrogen and oxygen. Platinum is a huge factor in the cost of the fuel cell and the larger problem is that we simply don't have the amount of it necessary to convert all of the vehicles of the world. I spent a few weeks at Los Alamos with a research group that had been given a hefty grant for finding a solution and all they were doing was shrugging their shoulders at it. It seems nearly hopeless.
The day we find a solution to this problem is, I believe, the day that fuel cells become viable for everyday transportation. I'll be the first in line to swap my motorcycle for a fuel cell powered version because the only problem with fuel cells is their cost per kilowatt. Currently it costs roughly $73 per kilowatt for a fuel cell (source). This is down from $1,000 in 2002. This means that we've come incredibly far, and we only have one problem to overcome.
the best Hydrogen storage is the Hydrocarbon.
What most people don't seem to understand is that the environmental problem with burning hydrocarbons (gasoline, diesel, etc.) *is not* with the act itself. My point being that the principle of the Internal Combustion Engine isn't the problem.
The problem is where the hydrocarbons come from. Right now, the feedstock for hydrocarbon based fuel production is petroleum. That petroleum is happy underground and would stay that way virtually indefinitely *if* we didn't pump it to the surface.
That brings us to the problem: When we burn hydrocarbon fuels based on petroleum, we are adding carbon to the atmosphere that was locked underground. However, *if* we burn hydrocarbon based fuels that are synthetically created using (among other things) recaptured Carbon from the air, then we are *not* adding to the CO2 load of the planet and therefore can focus on more immediate environmental problems.
It's going to happen sooner or later. However much petroleum there is in the ground (20 years or 200), it is for sure and certain that *one* day it will run out. We're eventually going to have no choice but to switch to a hydrogen economy and I've seen *nothing* on the drawing board (even far flung into the future) that matches the energy potential of hydrocarbons.
"Don't be a martyr -- BE THE ONE WHO GOT AWAY!"
Feathers are carbohydrates, meaning they are carbon structures with hydrogen and a small portion of oxygen. The Carbonization process cooks off the hydrogen and oxygen, leaving the carbon structure. The hydrogen combines with oxygen to form H20, which is certainly exothermic. My guess is that it produces more heat energy that was consumed to bring it up to carbonization temperature in the first place.
So little or no energy is wasted -- unlike as with solar cells that take 5-10 years to generate as much energy as was used to make them.
Physics: learn it, use it, benefit from it. (hint: application of kinetic energy would be a starting point to understanding this)
I don't think it's as simple as that.
I'm no physicist but I would suspect that there is a great deal of difference between firing a frozen chicken and a thawed chicken at something. With enough velocity, of course, the differences in outcome will not be very much. But if you give the chickens progressively less velocity at impact, I think you'd find the frozen chickens still penetrate the glass at some levels of kinetic energy where the thawed chickens would not.
My reasoning for this has to do with differences in how the kinetic energy of the chicken is imparted to the windscreen, both through time as well as the area of impact.
The body of frozen chicken will "give" much less than the body of a thawed chicken, so the windscreen has a much shorter period of time to absorb kinetic energy of the chicken. Also, due to that lack of give, the kinetic energy of the chicken's body will be spread over a larger area of the windscreen.
If I drop a 5 kg bag of laundry on my car's windshield from my roof, it will bounce off the windshield and leave it intact. If I drop a 5 kg pipe wrench from the same height, it will most likely shatter the windshield. It's the same idea. With the bag of laundry, the windshield gets more time and more area to absorb the kinetic energy, with the wrench, not as much. Though maybe if I dropped both from a 10 story building, the windshield might not survive it either way.
This isn't simply a matter of an application of equal amounts of kinetic energy. There are a lot of things going on at the point and time of impact that can alter the outcomes... within a certain range of energies.
KFC is food?
Adam and Jamie tackled this one on Mythbusters.
Using the same protocols as the 'official' testing, they found that thawed chickens busted windscreens as effectively as thawed chickens.
Wrong.
They revisited the myth and proved, beyond a doubt, that frozen chickens cause more damage.
To be fair, though, they went over that myth like three times before they finally came up with a test that proved it once and for all.
"I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)
Adam and Jamie revisited that one after they found that the windshield they used wasn't rated for bird strikes. After the revisit, they did prove that thawed chickens did not penetrate as far as frozen ones. See episode 14 from the 2004 season.
Yes it's an anecdote! Were you expecting original research in a Slashdot comment?
Don't you dare interfere with my 2nd Amendment right to bear poultry!
I prefer rogues to imbeciles because they sometimes take a rest.
Not really, the good news is that vegans are no longer going to be allowed to drive or use any other non-human powered transport.
It's called "impulse". Impulse is how quickly the force is transferred between the objects, which is faster with a solid (ice) chicken than with a thawed one. And then you have the force per area, which is larger with a thawed chicken because it deforms on contact whereas a frozen chicken concentrates almost all the force on a small area.
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