Zero emission

Zero emission refers to an engine, motor, process, or other energy source, that 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, batteries, supercapacitors, and flywheel energy storage devices.

In some cases, such as compressed air engines, 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 solar panels can also be a viable option, in addition to traditional sails and turbosails.

A concept like vegetable oil economy produces emissions.

gollark: For a cheaper alternative, you can use those vaguely knockoffy Banana Pis and Orange Pis.
gollark: 1. get a Raspberry Pi through Amazon or something, the Raspberry Pi 4 is recommended2. obtain apples3. grind up the apples into small apple fragments4. place the raspberry pi into the apple fragments5. a displacement reaction should occur, converting the raspberry pi into an apple pi(e) and producing a raspberry precipitate
gollark: That actually seems really useful and it seems weird that nobody thought of this before. Maybe it could list the text scale too.
gollark: It's quite hard to make memes as images, much easier to just describe them.
gollark: [picture of Meme Man in front of a generic hackertyper-looking terminal on a computer]sekurity

See also

References

  • Dixon, Lloyd; Isaac Porche; Jonathan Kulick (2002). Driving Emissions to Zero: Are the Benefits of California's Zero Emission Vehicle Program Worth the Costs?. RAND Corporation. ISBN 0-8330-3212-7.
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