Radulescu, C., Chicina, A.
The subject of our study belongs to the large area of studies about the analyze and the prediction of indoor air quality. One of the actual weaknesses for the appreciations of air indoor quality is the lack off knowledge about the interactions between the pollutants and the materials (emission off VOC, adsorption). Knowing the behavior of construction materials we can figure out the possibility ...
Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
Realising the interlinkage of nature and engineering are of paramount essential while comprehending the basics of system’s performances. Application of biotechniques in air pollution control is one such emerging scientific area, where the understandings of these complex systems demand more utilisation of computing softwares. Recently, biofiltration is a versatile biological air pollution ...
A. Fayolas , M.G. Sanku, M. Pascoa, M. Xynou
KTH Royal Institute of Technology, Stockholm, Sweden
The objective of the study is to investigate the chiral separation of Tröger’s base enantiomers using batch chromatography. Because of its resolution, chromatography is often the preferred method for chiral separations. The separation of Tröger’s base is resolved by using the COMSOL Multiphysics® software. It is modeled by one dimension geometry, having the length of the column set and ...
A theoretical and experimental analysis of membrane bioreactors behavior in unsteady-state conditions
Department of Chemical Engineering and Materials University of Calabria, Rende (CS), ITALY
The behavior of hollow fiber membrane bioreactors operating in recycle configuration is characterized from both theoretical and experimental point of view. The theoretical model is based on the unsteady-state balance equations governing momentum and mass transfer within the regions that can be identified in a hollow fiber reacting system with immobilized enzyme, coupled to the unsteady-state mass ...
J.P.Mmbaga, T.M. Mannan, N. Joederi, S.E. Wanke, and R.E. Hayes
University of Alberta
In this work we present the modelling of catalytic radiant heaters. The presentation outlines the mathematical model as well as a Laboratory setup of a catalytic radiant heater.
A Finite Element Analysis on the Modeling of Heat Release Rate, as Assessed by a Cone Calorimeter, of Char Forming Polycarbonate
D. Statler, and R. Gupta
Mid-Atlantic Technology, Research and Innovation Center, South Charleston, WV, USA
Department of Chemical Engineering, West Virginia University, Morgantown, WV, USA
During the pyrolysis and combustion of polymers, heat is released and is typically measured with a cone calorimeter to better assess the polymer’s flammability. Modeling heat release rate, as assessed by cone calorimetry, has not been extensively studied for char-forming polymers, such as, polycarbonate. Here we determine the heat release rate with the help of a one-dimensional transient finite ...
E. Gkanas, S. Makridis, E. Kikkinides, A. Stubos
Department of Mechanical Engineering, University of Western Macedonia, Kozani, Greece
Environmental Laboratory, Institute of Nuclear Technology and Radiation Protection, NCSR 'Demokritos', Agia Paraskevi, Athens, Greece
Hydrogen storage in a metal hydride bed, uses an intermetallic alloy that can absorb efficiently high amounts of hydrogen by chemical bonding resulting to metal hydrides. This alloy is capable of absorbing and desorbing hydrogen while maintaining its own structure. The heat, mass and momentum transfer in a metal-hydride reactor is mathematically described by energy, mass and momentum balance ...
Institut für Automatisierungstechnik, Otto-von-Guericke Universität, Magdeburg, Germany
Preparative chromatography is an important separation method where the simulated moving bed (SMB) technology is an increasingly used separation process for binary mixtures. Several chromatographic columns are arranged in a ring where the feedings and drains are changed cyclically to maintain a continuous separation. For this reason, an adaptive controller is proposed to adjust the flow rates ...
Simulation of a Diesel Oxidation Catalyst Used in a NOx Storage and Reduction system for Heavy Duty Trucks
C. Odenbrand, and E. Senar Serra
Department of Chemical Engineering, Lund University, Lund, Sweden
This work concerns the performance of an oxidation catalyst used in a NOx storage and reduction system. The oxidation of NO is the main objective of this study, where the presence of CO and propene has also been taken into account. Experimental data has been determined on a monolithic oxidation catalyst mounted after a heavy duty diesel engine in a rig. The conversion of hydrocarbons is predicted ...
F. Cipitì, L. Pino, A. Vita, M. Laganà, and V. Recupero
This paper presents a two dimensional model of a Preferential Oxidation Reactor. The main aim of the mathematical model was to investigate the process performance of the reactor by parametric analysis. Temperature and concentration profiles along the length of the reactor were evaluated in order to enhance optimization and control of the PROX unit.