A
zero emission engine,
electric motor, process, or other energy source emits no waste products that pollute the environment or disrupt the
climate.
Zero emission engines
Vehicles and other mobile machinery used for transport (over land, sea, air, rail) and for other uses (agricultural, mobile power generation, etc.) contribute heavily to climate change and pollution, so zero emission engines are an area of active research. These technologies almost in all cases include an
electric motor powered by an energy source compact enough to be installed in the vehicle. These sources include hydrogen fuel cells,
Traction battery,
supercapacitors, and flywheel energy storage devices.
In some cases, such as Air engine, the engine may be mechanical rather than electrical. This mechanical engine is then powered by a passive energy source like compressed air, or a combustible non-polluting gas like hydrogen.
The above engines can be used in all vehicles, from cars to boats to propeller airplanes. For boats, energy sources such as nuclear power and Photovoltaics can also be a viable option, in addition to traditional and .
A concept like vegetable oil economy produces emissions.
See also
-
Air engine
-
Carbon neutrality
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Economics of climate change mitigation
-
Zero Emissions Research and Initiatives
-
Zero-emissions vehicle
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Zero-energy building
External links
