Soot was harvested from five combustion sources: a dodecane flame, marine and bus diesel engines, a wood stove, and an oil furnace. The soots ranged from 20% to 90% carbon by weight and molar C/H ratios from 1 to 7, the latter suggesting a highly condensed aromatic structure. Total surface areas (by nitrogen adsorption using the Brunauer Emmett Teller, BET method) ranged from 1 to 85 m2 g(-1). ...

Micro combined heating and power (micro-CHP) systems are becoming more than important, and even essential, if we pretend to take full advantage of available energy. The efficiency of this kind of systems reaches 90% and important savings in energy transport processes can occur. In this research, an internal combustion engine (ICE)-based micro-CHP system was developed and tested under specific c...

Constant mean curvature (CMC) hypersurfaces in a compact Riemannian manifold (Mm+1, g) constitute an important class of submanifolds and have been studied extensively. In this paper we are interested in degenerating families of such submanifolds which ‘condense’ to a submanifold Kk ⊂ Mm+1 of codimension greater than 1. It is not hard to see that the closer a CMC hypersurface is (e.g. in the Hau...

Adding water to fuel droplets is known lead puffing and micro-explosion. Puffing micro-explosion a rapid increase in the liquid surface area. This, turn, leads an evaporation rate formation of homogeneous vapor/air mixture. The latter important for improving efficiency combustion technologies, including those used internal engines. effects produced by reduction consumption, improved fuel/air mi...

This work performs an analysis of plasma-assisted non-premixed H2-air flames in Y-shaped micro combustors the presence field emission dielectric barrier discharge (FE-DBD) plasma actuators. The combustion, flow, and heat transfer characteristics are numerically investigated, effect sinusoidal discharges on combustion performance is examined at various equivalence ratios (φ). A coupled chemical ...