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Encyclopedia > Zero emission

Zero emission refers to an engine, motor, or other energy source, that emits no waste products that pollutes the environment or disrupts the climate. An engine in the broadest sense, is something that produces an output effect from a given input. ... A motor is a device that converts energy into mechanical power, and is often synonymous with engine. ...

Contents

Zero emission engines

Vehicles and other mobile machinery used for transport (over land, sea, air, rail) and for other uses (agricultural, mobile power generation, ...) contribute heavily to global warming/pollution, and thus zero emission engines are being actively researched. These technologies almost in all cases include a electric engines powered by a additional energy source compact enough to be installed in the vehicle. These energy sources vary from hydrogen fuel cells, batteries, Flywheel energy storage devices, ... Rotating magnetic field as a sum of magnetic vectors from 3 phase coils An electric motor converts electrical energy into mechanical energy. ... A fuel cell is an electrochemical energy conversion device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i. ... Symbols representing a single Cell (top) and Battery (bottom), used in circuit diagrams. ... NASA G2 flywheel Flywheel Energy Storage (FES) works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy. ...


In some cases, (e.g. compressed air engines), the engine may also be mechanical. This mechanical engine is then powered by an additional, passive energy source as compressed air, or a combustible non-polluting gas (e.g. hydrogen). Compressed air is used to refer to: Pneumatics, the use of pressurized gases to do work, as used in the Air car Breathing gas, often used in scuba diving, also to inflate buoyancy devices Compressed air can also be used for cooling using a vortex tube. ... General Name, Symbol, Number hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1, 1, s Appearance colorless Atomic mass 1. ...


As the above engines can be used in all vehicles, everything can altered; from cars to boats aswell as propeller airplanes. For boats besides the above engines mentioned, nuclear power plants and technology used commonly to power homes/industry can be used as well (e.g. PV solar panels, ...).


Zero emission energy production

Current technology for power plants

Renewable energy sources, including solar power, wind power, tidal power and hydroelectric power. are often referred to as zero emission power, since their operation produce very few, or zero, emissions. On the other hand, the construction of such plants may involve emissions if the materials are created or assembled using equipment that produces emissions. For example, the production of high purity silicon for photovoltaic cells consumes large quantities of carbon, contributing to CO2 emissions, and this is also true for the production of steel and concrete for wind turbines and hydroelectric dams. Solar power describes a number of methods of harnessing energy from the light of the sun. ... Worldwide installed capacity and prediction 1997-2010, Source: WWEA Wind power is the conversion of wind energy into more useful forms, usually electricity, using wind turbines. ... Tidal power, sometimes called tidal energy, is a form of hydropower that exploits the rise and fall in sea levels due to the tides, or the movement of water caused by the tidal flow. ... Hydroelectric dam diagram The waters of Llyn Stwlan, the upper reservoir of the Ffestiniog Pumped-Storage Scheme in north Wales, can just be glimpsed on the right. ...


Similarly, Nuclear power plants do not emit significant amounts of pollutants during their operation, but the extraction of Uranium ore and construction of waste repositories usually involves machinery powered by gasoline. The construction of the plant itself also requires materials similar to those for renewable energy sources, tho because of nuclear powerplants large output per station, less so per amount of energy produced. All in all, emissions due to the operation, fuel production and waste management from nuclear powerplants are similar in magnitude to those of the renewables.[citation needed] However, though nuclear powerplants do not emit large amounts of pollution during normal operation, they do produce large quantities of radioactive waste, which has to be stored for several centuries before it's radioactivity has decreased to that of the uranium ore ( see Nuclear waste ). There is also concern that flawed designs or operation can lead to nuclear accidents, emitting radioactive pollutants, as happened during the Chernobyl disaster.[citation needed] The Susquehanna Steam Electric Station. ... Political Punk band from Victorville, Ca WWW.MYSPACE.COM/NUCLEARWASTEX ... Chernobyl reactor number four after the disaster, showing the extensive damage to the main reactor hall (image center) and turbine building (image lower left) The Chernobyl disaster was a major accident that took place at the Chernobyl Nuclear Power Plant on April 26, 1986 at 01:23 a. ...


Potential future technologies

Many technological improvements have been suggested to reduce emissions from various energy sources. Carbon dioxide could be captured from fossil plants and stored underground rather than released into the atmosphere ( a technology known as carbon capture and storage ). Improved efficiency for solar cells, or cells made from novel materials, could offset the emissions associated with silicon production. New reactor technology could enable nuclear reactors to produce orders of magnitude more energy without increased emissions, and recycled or new materials could reduce the emissions associated with construction of windturbines and hydroelectric dams. Additionally, many new energy sources with low emissions are being researched, including among others: Wave power, Nuclear fusion and Bio fuel. It has been suggested that this article or section be merged into Carbon dioxide sink. ... The fast breeder or fast breeder reactor (FBR) is a fast neutron reactor designed to breed fuel by producing more fissile material than it consumes. ... Wave power refers to the energy of ocean surface waves and the capture of that energy to do useful work - including electricity generation, desalination, and the pumping of water (into reservoirs). ... The deuterium-tritium (D-T) fusion reaction is considered the most promising for producing fusion power. ... For articles on specific fuels used in vehicles, see Biogas, Bioethanol, Biobutanol and Biodiesel Biofuel is any fuel that is derived from biomass — recently living organisms or their metabolic byproducts, such as manure from cows. ...


A concept like vegetable oil economy produces emissions; however, the only emissions are things that were first taken out of the atmosphere when the plants were growing. So there is no net emission. // There is a limited amount of fossil fuel in the ground. ...


See also

The air engine is an emission-free piston engine using compressed air. ... General Motors EV1 A zero-emissions vehicle, or ZEV will produce no emissions or pollution from the vehicle when stationary or operating. ...

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. 

Alternate meanings: See RAND (disambiguation) The RAND Corporation is an American think tank first formed to offer research and analysis to the U.S. military. ...

External Links

  • A special issue of the Journal of Cleaner Production that focuses specifically on Zero Emissions

  Results from FactBites:
 
Zero-emissions vehicle - Wikipedia, the free encyclopedia (532 words)
Although not considered an emission by the CARB definition, carbon dioxide is a greenhouse gas implicated in global warming scenarios.
Note that "zero emissions" does not mean that the complete power cycle is non-polluting, except in special cases, since in most cases the energy is provided from fossil fuel plants.
Special cases producing zero pollution in the operating energy cycle would include electric vehicles where an offsetting amount of zero emissions power is provided, especially solar electric or wind generated power.
About ZERO — Zero Emission Resource Organisation (475 words)
ZERO therefore believes it is vital that new vehicle, energy and industry facilities are based on non-polluting alternatives.
ZERO has shown, and will continue to show, that all energy and transport services as well as all energy and transport needs can be provided without emissions.
ZERO consists of people who are active and important within the Norwegian environmental movement; they are people involved in many areas concerning the environment.
  More results at FactBites »


 

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