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Full-Text Articles in Chemical Engineering
Mechanical Properties Of High Blaine Portland Cement, Masoud Rastegar, Kamran Rahmati Shadbad, Ali Hadidi
Mechanical Properties Of High Blaine Portland Cement, Masoud Rastegar, Kamran Rahmati Shadbad, Ali Hadidi
Masoud Rastegar
No abstract provided.
Comparison Of Theory And Experiments For Dispersion In Homogeneous Porous Media, Mark Porter, Francisco Valdes-Parada, Brian Wood
Comparison Of Theory And Experiments For Dispersion In Homogeneous Porous Media, Mark Porter, Francisco Valdes-Parada, Brian Wood
Francisco J. Valdes-Parada
Modeling dispersion in homogeneous porous media with the convection–dispersion equation commonly requires computing effective transport coefficients. In this work, we investigate longitudinal and transverse dispersion coefficients arising from the method of volume averaging, for a variety of periodic, homogeneous porous media over a range of particle Péclet (Pep) numbers. Our objective is to validate the upscaled transverse dispersion coefficients and concentration profiles by comparison to experimental data reported in the literature, and to compare the upscaling approach to the more common approach of inverse modeling, which relies on fitting the dispersion coefficients to measured data. This work is unique in …
Escalamiento De Ecuaciones De Transporte De Energía En Un Tanque Agitado, Francisco J. Valdes-Parada, J. Alberto Ochoa-Tapia
Escalamiento De Ecuaciones De Transporte De Energía En Un Tanque Agitado, Francisco J. Valdes-Parada, J. Alberto Ochoa-Tapia
Francisco J. Valdes-Parada
El planteamiento de balances para el diseño de equipos de transporte y reacción en Ingeniería Química suele llevarse a cabo mediante la aplicación de balances de coraza macroscópicos. Esta forma de proceder tiene la desventaja que no proporciona las restricciones y suposiciones que sustentan al modelo resultante, lo cual puede tener consecuencias graves en actividades de diseño y control de procesos. Una alternativa a esta metodología consiste en llevar a cabo un proceso de escalamiento de las ecuaciones de transporte válidas en la microescala, identificando sistemáticamente las suposiciones necesarias para la deducción del modelo macroscópico. En este trabajo se analiza …
2009 Report Of Crerg Research Activities, João F. Gomes
2009 Report Of Crerg Research Activities, João F. Gomes
João F Gomes
No abstract provided.
Degradation Of Organic Pollutants In Domestic Wastewaters By Concrete Plates Containing Of Photocatalyst Nanoparticles, Masoud Rastegar
Degradation Of Organic Pollutants In Domestic Wastewaters By Concrete Plates Containing Of Photocatalyst Nanoparticles, Masoud Rastegar
Masoud Rastegar
No abstract provided.
Toxicological Assessment Of Coated Versus Uncoated Rubber Granulates Obtained From Used Tires For Use In Sport Facilities, João F. Gomes
Toxicological Assessment Of Coated Versus Uncoated Rubber Granulates Obtained From Used Tires For Use In Sport Facilities, João F. Gomes
João F Gomes
Reuse of tire crumb in sport facilities is currently a very cost-effective waste management measure. Considering that incorporation of the waste materials in artificial turf would be facilitated if the rubber materials were already colored green, coatings were specifically developed for this purpose. This paper presents an experimental toxicological and environmental assessment aimed at comparing the obtained emissions to the environment in terms of polycyclic aromatic hydrocarbons (PAHs), heavy metals, and ecotoxicity for coated and noncoated rubber granulates. This study is a comprehensive evaluation of the major potential critical factors related with the release of all of these classes of …