Improving Heating Uniformity of Dried Fruit in RF Treatments for Pest Control: Model Development and Validation - new
B. Alfaifi, J. Tang, Y. Jiao, S. Wang, B. Rasco, S. Jiao, S. Sablani
King Saud University, Riyadh, Saudi Arabia
Washington State University, Pullman, WA, USA
Northwest A&F University, Yangling, Shaanxi, China
Non-uniform heating is one of the most important challenges during the development of radio frequency (RF) heat treatments for pest control. A computer simulation model using finite element–based COMSOL Multiphysics® software was developed to investigate the heating uniformity of raisins packed in a rectangular plastic container and treated using RF heating. The developed model was then ...
Simulations of Heat and Mass Transport During Biomass Conversion Processes Using 3D Biomass Particle Models with Realistic Morphology and Resolved Microstructure - new
P. Ciesielski, M. Crowley, L. Thompson, B. Donohoe, D. Robichaud, A. Sanders, M. Nimlos, T. Foust
Biosciences Center, National Renewable Energy Laboratory, Golden, CO, USA
National Bioenergy Center, National Renewable Energy Laboratory, Golden, CO, USA
Quantum Electronics & Photonics Division, National Institute of Standards & Technology, Boulder, CO, USA
Predictive simulations of biomass conversion processes will improve their technical performance and reduce economic uncertainty surrounding industrialization of biofuels production. The majority of present conversion simulations treat the biomass feedstock with simplifying assumptions that neglect important characteristics that are unique to biomass particles. These characteristics, including ...
Estimation of Critical Parameters of Drop-Drop Electrocoalescence Using a Multiple-Drop System - new
S. S. Kulkarni, V. A. Juvekar, A. Chheda
Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
Institute of Chemical Technology, Mumbai, Maharashtra, India
Electrocoalescence is the phenomenon of coalescence of droplets suspended in an insulating liquid or in a gas under the action of an electric field. Electrocoalescence is considered a promising tool in many petrochemical industries for desalting crude oils. However, this technique suffers from some drawbacks such as short circuiting of electrodes, limitations on applied electric field and its ...
S. D. Luise , L. M. Bueno ,
 ETH Zurich, Zurich, Switzerland
The DUNE experiment (http://www.dunescience.org/) is an international collaboration of more than 100 research institutes and universities (among them CERN and Fermilab) which is taking the challenge of building the next-generation experiment for the study of neutrino particles. The detector conceived to detect neutrinos consists of a gigantic cryogenic apparatus able to keep 700,000 tons of ...
G. Minton , R. Purkayastha , S. Walus , M. Marinescu , T. Zhang , G. Offer ,
 Oxis Energy Ltd, Oxford, United Kingdom
 Imperial College London, London, United Kingdom
During the basic operation of a lithium-sulfur (Li-S) cell, sulfur molecules are required to undergo a complex mix of electrochemical and chemical reaction processes. To date, almost all modeling of Li-S cell behavior has been undertaken using electroneutral, structurally homogenized, cell scale models accounting for most of these processes. The presented work was undertaken in order to try and ...
S. T. Aruna , S. Senthil, S. Chauhan , B. Shriprakash ,
 CSIR-National Aerospace Laboratories, Bangalore, Karnataka, India.
SOFC is a high temperature electrochemical device known for its fuel flexibility. Apart from using pure hydrogen, it can utilize CO (carbon monoxide), CH4 (methane) or any other higher hydrocarbon. Since methane is highly researched hydrocarbon fuel, it was chosen to start with. The most prominent problem faced while using hydrocarbon fuel in SOFC is the formation and deposition of carbon on the ...
Establishing Tolerances and Limits of Failure for Sample and Reagent Flow Using COMSOL Multiphysics® Software
S. Kumar , D. Dendukuri 
Achira Labs, Bangalore, Karnataka.
Microfluidics is the science of manipulating and controlling fluids at the micron scale. Although, fluid flow in standard geometries can be determined easily by analytical methods, a more rigorous computational model is required for custom geometries. Achira’s microfluidics cartridge has a microchannel with intricate curvatures to allow the entrapment of biosensors. The number and dimensions of ...
E. Houdu, O. Poupard, and V. Meyer
OXAND S.A., France
CO2 capture and storage constitutes a promising solution to control and reduce these emissions. Wellbore integrity is a key challenge to ensure long term safety and for public acceptance. For this objective, a two-phase flow model in porous media based on Darcy’s law has been proposed to simulate the CO2 leakage within the well at a rat hole area. The numerical simulations have highlighted ...
S. Nelson, and M. Guvench
University of Southern Maine, Gorham, Maine, USA
COMSOL Multiphysics is employed to model, simulate and predict the performance of a high Q, in-plane rotational resonating MEMS sensor. The resonating sensor disk is driven by thermal expansion and contraction of the support tethers due to AC joule heating. The resonant frequency is sensed by stationary contacts. For cost reduction, the relatively simple, low cost SOIMUMPS fabrication process is ...
J. Malapert, R. Yahiaoui, R. Zeggari, and J-F. Manceau
Institut Femto-St, Université de Franche-Comté Besançon, France
In this paper, we present an interesting method to microfabricate a tilted micro air jet generator. We used the well-know Deep Reactive Ion Etching (DRIE) technique in order to realize in a silicon substrate a double side etching. For aircraft and cars, micro air jets will take an important place for fluid control. Micro air jets are characterized by their speed, frequency and tilt. Usually, ...