Parameter estimation in thermal hydraulic models using the multidirectional search method : Carlos, S. et al. Annals of Nuclear Energy, 2003, 30, (2), 133–158
Post on 02-Jul-2016
16 Fuel science and technology (fundamental science, analysis, instrumentation)
when the bed's temperature was raised; this was accounted for by changes in the following physical properties: the density of the fluidizing gas, the diffusivity of 02, the viscosity, and minimum fluidizing velocity of the air. There was no clear trend of Sh with the actual superficial velocity of the fluidizing air. On the other hand, Sh was increased significantly by using larger sand particles, mainly as a consequence of increasing the gas velocity in the interstices between the sand particles.
03/00878 Modeling the impact of ethanol on the persistence of benzene in gasoline-contaminated groundwater Molson, J. W. et al. Water Resources Research, 2002, 38, (l), 4/1-4/12. The effect of ethanol on the persistence of benzene in gasoline- polluted aquifers was simulated using a multi-component reactive transport model. This conceptual model includes a residual gasoline source which is dissolving at the water table into an aquifer containing a limited amount of dissolved 02. Coupled processes include non- aqueous phase liquid (NAPL) source dissolution, dissolved component transport, and competitive aerobic biodegradation. Comparisons were made between dissolved benzene plumes from a gasoline spill and those from an otherwise equivalent spill containing 10% ethanol (gasohol). Simulations showed that under some conditions, a 10% ethanol component in gasoline can extend the travel distance of a benzene plume by _