If oxygen gets to the metal during welding, it combusts
instantly, so the job has to be done in a special argon-filled chamber.
In Operation: The binder material combusts
in the fluid bed chamber as air and natural gas are introduced through distributor tubes.
Harvesting chunks of ice from the bottom of the ocean and beneath the Arctic permafrost may yield a source of burnable fuel in the future Gas hydrates are a form of frozen natural gas that readily combusts
when lit by a match, suggesting a promising source for renewable energy, according to researchers working with the U.S.
Choren says that the SunDiesel combusts
cleanly with extremely low levels of hazardous emissions, and predicts an 80-90% reduction in so-called "earth to engine" carbon dioxide emissions compared with fossil-based transport fuels.
The build up of sample residue is a particularly important consideration where a sample combusts slowly or where a large volume of residue is produced by each sample, such as is found in filter analysis.
To analyze a sample, a weighed (1 to 2 mg) quantity is introduced into a high temperature furnace, and the sample is combusted in oxygen.
He created an engine that compresses the fuel to such an extent that it combusts
on its own.
At the University of Minnesota, researchers are using dried corn stalks as experimental biomass fuel for a gasification process that partially combusts
the material but does not cause it to fully burn--cutting down on emissions.