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Therefore John Joyce's research into low NO x burners revolved primarily around surface combustion techniques. Another issue was the effect combustion temperatures have on the formation of NO x . John Joyce's task became even more challenging when he decided not to direct his development towards radiant type surface combustion tiles.
John Smith "Jack" Zink (October 17, 1928 – February 5, 2005), founder of Zeeco, Inc., was an American engineer who received 35 patents for his inventions in the field of combustion, and was also known for his achievements and contributions in business, auto racing and charitable enterprises.
Another method of fuel staged combustion is fuel biasing. In fuel biasing, combustion is staged by diverting fuel from the upper-level burners to the lower ones or from the center to the side burners. The aim is to create a fuel-rich lower or central zone and a fuel-lean upper or side zone in order to achieve complete burnout.
The amount of NOx produced depends on the combustion temperature. [2] When the combustion takes place at a lower temperature the NOx emissions are reduced. [2] Gas turbines with DLE technology were developed to achieve lower emissions without using water or steam to reduce combustion temperature (Wet Low Emission (WLE) technology).
[citation needed] Premixing all of the gases prior to treatment eliminates localized high temperatures which leads to thermal NOx typically below 2 ppmV. Flameless thermal oxidizer technology was originally developed at the U.S. Department of Energy to more efficiently convert energy in burners, process heaters, and other thermal systems.
The Low Nox burner described here uses air and fuel gas - premixed at a ratio greater than or equal to the stoichiometric combustion requirement. Low NOx (≤ 2 ng/J or ~ 4 ppm at 0% O2 on dry basis). As this is the only information on Low NOx burners on wiki at the moment, it might as well stay this way for the time being.
The engines designed for lean-burning can employ higher compression ratios and thus provide better performance, efficient fuel use and low exhaust hydrocarbon emissions than those found in conventional gasoline engines. Ultra lean mixtures with very high air–fuel ratios can only be achieved by direct injection engines.
FBC smoke tube boiler. Fluidized bed combustion (FBC) is a combustion technology used to burn solid fuels.. In its most basic form, fuel particles are suspended in a hot, bubbling fluidity bed of ash and other particulate materials (sand, limestone etc.) through which jets of air are blown to provide the oxygen required for combustion or gasification.