Stirring and mixing in ethylic biodiesel production

Impacts of alcohol type, ratio and stirring time on the biodiesel production from waste canola oil

The use of alternative fuels in order to reduce the environmental impacts of diesel emissions has been extensively investigated. Trends in the regional use of biomass-derived fuels, such as alcohols, biodiesel and agricultural residues as a proposed control initiative against elevated carbon monoxide levels in urban areas have expanded to a global scale. Waste cooking oil is considered as the m...

Stirring and mixing of biologically reactive tracers

We examine the effect of stirring and mixing on the marine planktonic ecosystem. We present a number of models investigating the impact of patchiness in the population, diffusion, and fluid stirring on the spatial structure of the population and the overall production rates of the system. It is found that the heterogeneity of the system significantly affects the way the system behaves. The resp...

Stirring and Mixing in Two-Dimensional Divergent Flow

While stirring and mixing properties in the stratosphere are reasonably well understood in the context of balanced (slow) dynamics, as is evidenced in numerous studies of chaotic advection, the strongly enhanced presence of high-frequency gravity waves in the mesosphere gives rise to a significant unbalanced (fast) component to the flow. The present investigation analyses result from two ideali...

Biodiesel Production and Quality

Biodiesel Production

This article describes an in−depth follow−up to previous studies showing that an oil−methanol mixer prior to an RD reactor played an important role in enhancing the overall performance of the RD reactor system. An in−line static mixer was used for the purpose of providing initial mixing of the reactants, heating the mixture up to the desired operating temperature, and carrying out a substantial...