Airplanes: What can we use for fuel?

Question

Please give some renewable fuel sources for aircrafts that we can use when petrol runs into ground zero.

Thanks.

Answer 1

Solar, wind, geothermal, hydroelectric can be possible fuel sources for future aircraft.

This DOES NOT mean I want to install solar panals, etc on the aircraft itself.

What I suggest is using the electricity generatored from renewable sources to create hydrogen fuel.

Hydrogen fuel has a better weight-to-power ratio than today's lithium batteries and can be burned using fuel cells that can replace regular tanks. Also, engines can be made to use hydrogen with little modification.

The only hurdles to hydrogen fuel usage is the inefficiency resulting from the compression of hydrogen into a liquid (hydrogen is a gas at room pressure and temperature), and transporting it.

Other methods is storing hydrogen in the form of anmonia, or H3N, which is easier to extract and transport.

However, airplanes require a fuel that has a high power density, and hydrogen is the best way to go.

Batteries are good enough for our cars and other things.

Answer 2

Actually, I've seen some news story that scientists are researching how to launch a plane using a laser. I don't know the full story, so just Google 'Paper Plane Physics' and read the top one on the list.

Answer 3

Oil won't run out, but when it does, ethanol, and battery power.

Answer 4

None.

Battery CANT be used. A simple plane such as a Cessna would require i gigantic battery.

We have NO idea where oil lurkes. Never know, we may strike billions of oil in the future.

Answer 5

if we already knew, we would hav won the millions of dollars sir richard branson is offering to any1 who finds a renewable source of fuel

Answer 6

I have to slightly disagree with Comair.

Sonex Aircraft of Oshkosh Wisconsin is currently flying a battery powered aircraft as a proof of concept.  Battery and DC motor fits in the same area as standard engine.  Needless to say, batteries do not give this nice little aircraft much flying time.  But I like how the folks are going about the engineering of the test bed.  

If ways could be found for higher capacity batteries relative to weight or a means of adding amps back into battery pack during flight, this could be a viable alternative to a reciprocating engine.  

We are in for some interesting times.

Answer 7

jet fuel is made of kerisine.(mostly) kerocine is a byprodust of gasoline. it isnt really used. that means that jets are using up what wouldnt be used if not for the jets.

Answer 8

I wish they could make an engine that works on water. zero emissions and no harmful fumes. And i know they can make an engine that runs on water with the technology these days it's possible i have faith. i wish i could do it but can't.

Answer 9

Jet aircraft and turboprops could use biodiesel created from vegetable oil. It works just as well as the real thing.

If there is ever an electric aircraft it will be powered by a hydrogen peroxide fuel cell. Hydrogen fuel cells are a joke, and hydrogen peroxide fuel cells are up to 20 times as powerful as a lead acid battery of the same weight. It is just on the edge of being viable, but it would require a purpose engineered aircraft.

Purdue university is continuing research the navy started on hydrogen peroxide fuel cells, and accidentally solved a major problem by inadvertently using a aluminum alloy instead of the pure aluminum used by the navy. They are far far more likely to be used than pure hydrogen fuel cells, which require cyrogenic cooling and expensive cells made to withstand over 10k psi.