Energy & Green Tech
Advancements in zero-emission fuel cells could make the technology cheap enough to replace traditional gasoline engines in vehicles, according to researchers at the University of Waterloo.
May 8, 2019
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1474
Robotics
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 ...
Engineering
With the rise in gas prices showing no signs of abating, it seems like an appropriate time to ask ourselves: are our cars not efficient enough? Europe has decided to ban the production of new combustion engine-powered vehicles ...
Mar 13, 2023
1
25
Energy & Green Tech
We get it. Car-makers say they are on board for a next chapter in the electrification of cars and they have teams dedicated to developing cars toward that end. Well-known brands are looking at alternative-fuel solutions such ...
Electronics & Semiconductors
Imagine an iPad or a Kindle for the blind, with inflatable Braille that changes shape under a user's touch. A Cornell-led collaboration has made a crucial component for such a technology: A haptic array of densely packed ...
Oct 5, 2021
0
491
Energy & Green Tech
Zero-emission hydrogen engines, like all internal combustion engines, require a mixture formation system, i.e. a system for metering the fuel, in this case hydrogen gas. The most promising approach is a low-pressure direct ...
Feb 9, 2023
0
20
Engineering
A team of engineering students at the University of Bath have achieved a world first by becoming the first undergraduates to build and successfully run a hydrogen-fueled engine.
Apr 17, 2024
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92
Hi Tech & Innovation
Hyundai has unveiled special noise cancellation technology addressing noise control.
Energy & Green Tech
While the transportation sector has witnessed a dramatic shift toward electric vehicles (EVs), the idea of using hydrogen as a clean and efficient fuel for transportation has been explored for many decades. These vehicles ...
Mar 5, 2024
0
60
Engineering
A team of engineers with Pulsar Fusion has conducted a ground test of its plastic-waste-powered rocket engine at the UK's Ministry of Defence military base in Salisbury last week. The team has posted a video of the test on ...
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
