The U.S. Environmental Protection Agency is devel­ oping new air pollution rules for all new and existing municipal waste combustors (MWCs). These rules re­ quire all MWCs to use good combustion practice (GCP). The goals of GCP are to maximize furnace destruction of organic pollutants, limit the relative amount of particulate matter (PM) carried out of the combustor with flue gases (PM carryove...

This paper presents an excellent review of the theory of solid fuel combustion and NOx formation and control in the context of solid waste combustion. After pointing out that most research on NOx formation from solid fuels has been done on coal, the authors correctly point out that the while the basic principles of fuel and thermal NOx formation are well understood and permit NOx reductions in ...

The behavior of a laboratory-scale pulsed combustor is shown to undergo a global bifurcation as the equivalence ratio of the propane-air mixture is reduced toward the lean flammability limit. At near-stoichiometric and moderately lean conditions, the acoustically driven combustion oscillations exhibit small, stochastic cycle-tocycle variations. At very lean conditions, the available fuel invent...

In the combustion facilities, halogens (Cl, F, Br, I) should be considered with regard to the control of the compounds such as polychlorinated dibenzodioxins (PCDD), polychlorinated dibenzofurans (PCDF), halogenated polyaromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB) and volatile heavy metals formed as a result of incomplete combustion and caused adverse environmental effects. In t...

In this study we summarize and analyze experimental observations of cyclic variability in homogeneous charge compression ignition (HCCI) combustion in a single-cylinder gasoline engine. The engine was configured with negative valve overlap (NVO) to trap residual gases from prior cycles and thus enable auto-ignition in successive cycles. Correlations were developed between different fuel injecti...

According to statistics, the coal spontaneous combustion fire accounted for more than 94% of the total number of coal mine fire, of which 60% occur in gob [1]. With the mining depth increasing, coal pillar become so easy to be crushed that coal spontaneous combustion is easier to occur. The fire’s occurrence and development not only affect the safety in production and the surrounding environmen...