i am going to give this as my science project in inter high school science f@ir so can any one help me about this?can some one give me some Information about this thing.and what should i give in that project?so what should i do?can any one tell me what to make at that project?
my plan is to give my project a name that is ”cars which run by water”
so first i will use electrolysis and divide water into oxygen and hydrogen.then the hydrogen is going to be the main fuel.
hydrogen has 1 electron and 1 proton.my theme is to get the electron out of the atom and keep that running and it will make electricity.is this process right?
can any one give me any information about how to make electricity from hydrogen?please?
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There’s basically two ways, either electrochemically as in a fuel cell which is essentially a battery except with hydrogen and oxygen as the chemicals involved or as a thermodynamic mechanical engine driving a generator.
The fuel cell is probably the one that you would want to demonstrate in a science fair and there are educational kits to make them. Wikipedia can help.
Personally, I believe hydrogen to be a terrible alternative fuel, not only is the energy density low (405 Wh/l for compressed H2, 2600 Wh/l for liquid H2 while gasoline has 9000 Wh/l) but the environmental costs of replacing or modifying existing vehicles plus establishing a distribution network would have an enormous carbon footprint.
Even Sandia Labs while developing the CR5 as a more efficient way of producing hydrogen concluded that it would be better to continue the process and synthesize fuels such as methanol, synthetic gasoline and or diesel for use with existing vehicles and infrastructure.
More or less. The H2 gets oxidized (loses an electron). This electron is sent over to oxygen, which gets reduced. The electron travels through a wire to get to the oxygen, which is the definition of electric current–electrons moving through a wire.
Realize, though, you cannot actually "run a car on water" since the energy required to split the water is much greater than the energy you get back in the fuel cell.
Hydrogen is cool. But we have to build Nuke Plants and dam several rivers. But I say lets go for it!
Put it in a compressed chamber with oxygen. The small explosion will cause the piston to move. Use the piston to turn a coil of wire around a magnet there by generating electricity. The same way as with any other fuel. Its a simple generator.
Hydrogen is the most stupidest way of getting electricity I ever heard of. Its damaging to the environment and very inefficient. Normally the only advantage is Hydrogen is lighter then conventional batteries. But you are not even using it as a battery. Containing hydrogen is near impossible as hydrogen particles are very small and hydrogen is extremely explosive making it extremely dangerous. Hydrogen rises very fast up into the atmosphere to then react with ozone.
The whole Hydrogen thing was a ploy by the Oil and car companies to take focus off actual viable forms of storage and propulsion. Flywheel technology and capacitor technology looks to be viable batteries or in the case of the Flywheel it doesn’t need to be converted to electricity at all (the controller is complicated for this). Flywheel has the potential to be very good as you can keep the energy as kinetic this means high efficiency. The flywheel is in a vacum so there is next to no loss in energy.
Your car isn’t really run off water its off electricity. You would do better just running it off electricity. If you want to do something exciting and even more on the cutting edge of science use the flywheel. A cheap way of making a fairly safe flywheel is to make it out of wood. For safety don’t charge it too much and remember the forces on the fly wheel are great. Alternatively you can use any spinning object like a second wheel. You could charge it by using a motor or by pedal power and then just have a system for it engaging the wheel of the vehicle.
Creating a vacum may be beyond you and is not necessary to show the principle of flywheels.
So what I am saying is your not even using hydrogen to store energy so its really inefficient compared to just using the electricity straight. The only way of getting the electron off the atom that I can see is by combustion. It requires 1312 KJ energy to remove the electron. So if you don’t use a reaction then you just have used up a whole lot of energy with no forward motion. Hydrogen reacting with oxygen goes to water. The only usefulness of hydrogen is for storing energy. A car cannot run off water. Its running off the electricity. The electricity converts water into its parts and then the parts react and form back to water you can use the kinetic energy to convert back to electricity but you will have a lot less energy then you started with.
I must say I wish this sorta technology was around when I had to prepare science projects. Although I read one article one time which may be exactly what you are looking for. Here is the complete link http://www.hhogaskitwizard.com/blog/guide-showing-fuel-cell/ it is the same exact concept. I know there are actually a few others out their I made one of my kids a remote control car from that information provided on that page.