Some of these come into the category of renewable energy. Renewable energy includes electricity generation for the home, while the term "alternative fuels" tends to refer to mobile energy. Some alternative fuels and the cars they power are : ethanol, oil shale, steam engine cars (like the Stanley Steamer), coal-oven steam cars, electric vehicle, electric cars recharged by solar cells, Tesla's electric car (with antenna), hydrogen fuel cell (see hydrogen car), hydrogen internal-combustion car (see hydrogen car), Water Fuel Cell, hempseed oil fuel, organic fuel (garbage), gas vaporizing carburetor, magnet car, and air car. Some less conventional alternative fueled cars are : wind-up car, nuclear powered, rubber band (stored energy), spring power (stored energy), and wind-powered sail cars. Most alternative fuels are designed to be cheap, non-polluting, non-finite sources of fuel or power.
Alternativefuel, also known as non-conventional fuels, is any material or substance, other than petroleum (oil), which is consumed to provide energy to power an engine.
With heavy taxes on fuel, particularly in Europe and tightening environmental laws, particularly in California, and the possibility of further restrictions on greenhouse gas emissions, work on alternative power systems for vehicles continues.
The fuel mixture is automatically detected by one or more sensors, and once detected, the ECU tunes the timing of spark plugs and fuel injectors so that the fuel will burn cleanly in the vehicle's internal combustion engine.
The fuel is burned in a boiler and the heat converts water into steam.