The large surface area also contributes to fire hazards because of hydrocarbon deposits that can easily combust and promote combustion of the thin metal packing materials.
Among emission-control devices developed in the 1970s were catalytic converters (devices to promote combustion of hydrocarbons in the exhaust), exhaust-gas-recirculation systems, manifold reactors, fuel injection, and unitized ignition elements.
Only the Ni coating applied in large amounts promoted combustion in nitrogen.
As is known, in situ combustion is a thermally enhanced recovery method that promotes combustion reactions between a small portion of hydrocarbons in place and the injected air to generate heat in the reservoir.
The porous media within the combustor can be coated with a catalyst to further promote combustion; this apparatus was designed to enable the investigation of various catalysts to be evaluated for their effectiveness as promoters of combustion.
Wildfire is an ecological disturbance process that has a heterogeneous global distribution controlled by the coincidence of three basic requirements: vegetative resources to burn, environmental conditions that promote combustion, and ignitions.
It can be concluded that La2O3 plays an important role in promoting the combustion of both volatile material and fixed carbon.
The bed temperature also proved to be an important parameter, with higher temperatures promoting bubble combustion, but unlike some other investigations, no critical ignition temperatures were observed in either experiments or model results.
For fuel Lewis numbers less than unity, concave curvature towards the fuel retards combustion and weakens the flame and convex curvature towards the fuel promotes combustion and strengthens the flame.
An alternative to traditional direct combustion of crop residues is the use of "gasifier" stoves that achieve high combustion efficiency through designs that promote secondary combustion.
