Energy & Green Tech

EU countries vote to weaken next car emissions norm

EU member countries on Monday adopted a watered-down deal on curbing car emissions, after auto manufacturers complained stricter measures could undermine electric vehicle investments.

Energy & Green Tech

Tire maker honored for tackling electric car pollution

Electric cars are widely hailed as the future of transport, but even though they eliminate the issue of fuel emissions from tailpipes, the problem of particle pollution as a result of tire wear hasn't been resolved.

Robotics

Using tiny combustion engines to power very tiny robots

A team of mechanical engineers at Cornell University, working with a colleague from Technion-Israel Institute of Technology, has designed and built a tiny robot that is powered by a combustion engine. In their paper published ...

Automotive

Chinese carmakers confront European industry at Munich show

Chinese manufacturers will be out in force at next week's IAA auto show, one of the industry's biggest, revving their new electric models on the turf of German carmakers, which have been lagging in the e-mobility race.

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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.

This text uses material from Wikipedia, licensed under CC BY-SA