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News tagged with combustion

Synthetic nano-waste does not disappear

(Phys.org) -- Tiny particles of cerium oxide do not burn or change in the heat of a waste incineration plant. They remain intact on combustion residues or in the incineration system, as a new study by Swiss ...

Nanotechnology / Bio & Medicine

created May 25, 2012 | popularity 5 / 5 (2) | comments 1 | with audio podcast

Tesla to launch electric sedan in US on June 22

Tesla Motors said Tuesday it would begin deliveries of "the world's first premium electric sedan" on June 22, slightly ahead of schedule.

Technology / Energy & Green Tech

created May 22, 2012 | popularity 4.5 / 5 (13) | comments 19

Delphi gasoline-injection engine technique rivals hybrid's edge

(Phys.org) -- Running a diesel like engine on gasoline is something Delphi is doing in notable fashion. They claim they are on to a promising way to enjoy an engine that gives the vehicle owner high efficiency ...

Technology / Energy & Green Tech

created May 21, 2012 | popularity 4.7 / 5 (18) | comments 40 | with audio podcast report

Toxic mercury, accumulating in the Arctic, springs from a hidden source

(Phys.org) -- Environmental scientists at Harvard have discovered that the Arctic accumulation of mercury, a toxic element, is caused by both atmospheric forces and the flow of circumpolar rivers that carry ...

Space & Earth / Earth Sciences

created May 21, 2012 | popularity 3.7 / 5 (3) | comments 0 | with audio podcast

Researches quiet combustion with patented 'noise sponge'

(Phys.org) -- A sponge-like material employed by a University of Alabama engineering professor can significantly quiet combustion, possibly making work environments safer and extending the life of equipment.

Technology / Engineering

created May 01, 2012 | popularity 5 / 5 (9) | comments 4 | with audio podcast

Controlling heat flow with atomic-level precision

Through a combination of atomic-scale materials design and ultrafast measurements, researchers at the University of Illinois have revealed new insights about how heat flows across an interface between two ...

Nanotechnology / Nanomaterials

created Apr 22, 2012 | popularity 5 / 5 (8) | comments 0 | with audio podcast

Startup offers game-changing energy solutions that reduce CO2 emissions

The University of Minnesota has launched a startup that will provide renewable energy more economically than existing alternatives while reducing harmful carbon dioxide emissions from fossil fuel combustion such as from coal-burning ...

Space & Earth / Environment

created Apr 19, 2012 | popularity 5 / 5 (3) | comments 0

Researchers strive to simulate turbulent combustion in aerospace applications

A research team at the University of Pittsburgh is developing quantum-computing algorithms to better model turbulent combustion in aerospace applications.

Physics / Quantum Physics

created Apr 18, 2012 | popularity 3.7 / 5 (3) | comments 0

Swatch mulling car that runs on hydrogen, oxygen

The world's biggest watch company Swatch is looking at building a car that runs on hydrogen and oxygen, its chief executive and chairman Nick Hayek said in an interview published Sunday.

Technology / Energy & Green Tech

created Mar 25, 2012 | popularity 5 / 5 (1) | comments 1

Breakthrough in designing cheaper, more efficient catalysts for fuel cells

University of California, Berkeley, chemists are reimagining catalysts in ways that could have a profound impact on the chemical industry as well as on the growing market for hydrogen fuel cell vehicles.

Chemistry / Materials Science

created Feb 23, 2012 | popularity 4.8 / 5 (13) | comments 5 | with audio podcast

Driving the green: New study suggests that electric-powered trucks will save money for businesses

A company looking to purchase an electric-powered delivery truck today will likely experience some sticker shock: Such a vehicle costs nearly $150,000, compared to about $50,000 for the same kind of truck ...

Technology / Energy & Green Tech

created Feb 01, 2012 | popularity 4.3 / 5 (6) | comments 10 | with audio podcast

How do you fight fire in space? Experiments provide some answers

Improving fire-fighting techniques in space and getting a better understanding of fuel combustion here on Earth are the focus of a series of experiments on the International Space Station, led by a professor ...

Space & Earth / Space Exploration

created Jan 31, 2012 | popularity 5 / 5 (2) | comments 0

NASA's J-2X engine kicks off 2012 with powerpack testing

(PhysOrg.com) -- A new series of tests on the engine that will help carry humans to deep space will begin next week at NASA's Stennis Space Center in southern Mississippi. The tests on the J-2X engine bring ...

Space & Earth / Space Exploration

created Jan 26, 2012 | popularity 5 / 5 (3) | comments 0

China's drive for 'green' cars hits roadblocks

Foreign and domestic car makers are struggling to sell environmentally friendly vehicles in China, the world's largest auto market, even as Beijing pumps billions into clean energy.

Technology / Energy & Green Tech

created Jan 18, 2012 | popularity not rated yet | comments 2

Wood-burning stoves - harmful or safe?

Wood-burning stoves are a popular source of heating in many countries. However in recent years there has been much debate about the potential negative health effects associated with wood smoke. A Norwegian researcher has ...

Space & Earth / Environment

created Jan 17, 2012 | popularity 2.5 / 5 (2) | comments 0

Combustion

Combustion (English pronunciation: /kəmˈbʌs.tʃən /) or burning is the sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat and conversion of chemical species. The release of heat can result in the production of light in the form of either glowing or a flame. Fuels of interest often include organic compounds (especially hydrocarbons) in the gas, liquid or solid phase.

In a complete combustion reaction, a compound reacts with an oxidizing element, such as oxygen or fluorine, and the products are compounds of each element in the fuel with the oxidizing element. For example:

A simple example can be seen in the combustion of hydrogen and oxygen, which is a commonly used reaction in rocket engines:

The result is water vapor.

Complete combustion is almost impossible to achieve. In reality, as actual combustion reactions come to equilibrium, a wide variety of major and minor species will be present such as carbon monoxide and pure carbon (soot or ash). Additionally, any combustion in atmospheric air, which is 78% nitrogen, will also create several forms of nitrogen oxides.

For more information about Combustion, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.