| Revision as of 18:36, 24 August 2020 editGünniX (talk | contribs)Extended confirmed users312,231 editsm ReflistTag: AWB← Previous edit | Revision as of 22:58, 11 September 2020 edit undoMrsSnoozyTurtle (talk | contribs)Extended confirmed users32,338 edits reverting due to COI concernsTag: Manual revertNext edit → | ||
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| A concept like ] produces emissions. | A concept like ] produces emissions. | ||
| == Zero emission combustion engines == | |||
| A novel technology for zero emission engines is contributed to argon power cycles and combustion engines that uses ] as a fuel and ] (noble gas) as a working fluid.<ref name=":0">{{Cite journal|last=Morovatiyan|first=Mohammadrasool|last2=Shahsavan|first2=Martia|last3=Aguilar|first3=Jonathan|last4=Mack|first4=J. Hunter|date=2020-08-07|title=Effect of Argon Concentration on Laminar Burning Velocity and Flame Speed of Hydrogen Mixtures in a Constant Volume Combustion Chamber|url=https://asmedigitalcollection.asme.org/energyresources/article/doi/10.1115/1.4048019/1086088/Effect-of-Argon-Concentration-on-Laminar-Burning|journal=Journal of Energy Resources Technology|language=en|pages=1–28|doi=10.1115/1.4048019|issn=0195-0738}}</ref> Hydrogen is a powerful candidate to replace fossil fuels in internal combustion engines as it does not produce major emissions (CO & CO<sub>2</sub>) compared to fossil fuels; furthermore, H<sub>2</sub> can be coupled with argon as a working fluid in a power cycle to produce efficient energy with lower emissions. This combustible mixture is able to be used in internal combustion engines, power plants, and the energy generation industry. Hydrogen-fueled IC engines can operate in a cleaner and a more efficient thermodynamic cycle by altering the working fluid. Replacing nitrogen with argon as the working fluid theoretically aids in decreasing NOx production and increasing the thermal efficiency due to the high specific heat ratio of noble gases.<ref name=":0" /> According to an earlier study,<ref name=":0" /> the exhaust component of H<sub>2</sub>O in the combustion products is also converted into two gaseous species, H<sub>2</sub> and O<sub>2</sub>, that are recirculated to the intake of the engine as a result of using a condenser and an electrolysis procedure.<ref name=":0" /> | |||
| == See also == | == See also == | ||
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| == References == | == References == | ||
| {{Reflist}} | |||
| * {{cite book | * {{cite book | ||
| | last = Dixon | | last = Dixon | ||
Revision as of 22:58, 11 September 2020
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.
See also
- Air engine
- Carbon neutrality
- Economics of climate change mitigation
- Zero Emissions Research and Initiatives
- Zero-emissions vehicle
- Zero-energy building
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.
External links
- A special issue of the Journal of Cleaner Production that focuses specifically on Zero Emissions