O. Rouaud, T. Pham
LUNAM Université, ONIRIS, CNRS, GEPEA, UMR, Nantes, France
University of New South Wales, Sydney, Australia
A mathematical model is developed to determine the weight loss and the freezing rate during the freezing of unwrapped foodstuffs. The model allows comparing two freezing processes; the first uses nitrogen gas at -80°C and the second uses cold air. The model includes thermophysical properties that are temperature dependent to take into account the ice formation. The time step has to be chosen ...
S. Chaudhuri , W. Du ,
 University of Illinois at Urbana-Champaign, Champaign, IL, USA
Predicting and controlling the formation of droplets from a liquid jet is a critical problem in a variety of applications ranging from fuel injection to paint sprays. It is known that liquid droplets subjected to an electric field acquire a net electrostatic charge via induction, and that the magnitude of this charge depends on the conductivity of the liquid and the size of the droplet . When ...
J.L.Wilson, and R. Dwivedi
New Mexico Institute of Mining and Technology, Socorro, New Mexico, USA
Geothermally driven natural convection in enclosures is a ubiquitous process occurring in many physical environments such as caves, mines, etc. We have numerically simulated laminar and turbulent natural convection in isolated air-filled cavities, buried in a more conductive rock mass. We have modeled heat transfer using COMSOL's Convection and Conduction mode. To better understand the ...
N. Pacheco, D. Pavone, K. Surla, E. Schaer, and J. Houzelot
For Hydrogen production purpose from bio-ethanol, IFP set up a pilot reactor that can work at high temperature (1000°C) and high pressure (20 bar). Experiments show that this reactor has a specific thermal behavior that should be modeled in addition to chemical and hydrodynamics to understand and optimize hydrogen production. The multiphysics simulator has been defined in COMSOL and the ...
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 control ...
C. Soares, N. Padoin, F. Montalvo, D. Cobra
Federal University of Santa Catarina, Florianópolis, SC, Brazil
CERTI Foundation, Florianópolis, SC, Brazil
Schistosoma mansoni parasites affect million people worldwide. The intensity of the infection can be evaluated by the number of eggs present in the stool of an infected individual. The application of the traditional methods has been regarded as impractical in developing areas and there is a continuous search for new techniques. In face of this scenario, a new method of diagnosis was explored in ...
M. Yang, A. Young, and B. Crittenden
Department of Chemical Engineering University of Bath, Bath, United Kingdom
A small batch stirred cell which is operated at temperatures up to 400 °C and pressures up to 30 bar is used to study fouling behaviors of selected crude oils. COMSOL Multiphysics package is used for the CFD (Computational Fluid Dynamics) and heat transfer modeling for this stirred cell system. The simulation results are validated against the measured temperature data at various axial ...
Modeling Of A Strongly Coupled Thermal, Hydraulic And Chemical Problem: Drying And Low-Temperature Pyrolysis Of Chromated Copper Arsenate (CCA)-Wood Waste Particles In A Moving Bed Reactor
J. Govaerts, and L. Helsen
SCK-CEN, Belgian Nuclear Research Centre, Performance Assessment Unit, Mol, Belgium
Department of Mechanical Engineering, Division of Applied Mechanics and Energy Conversion, Katholieke Universiteit Leuven, Heverlee, Belgium
Low temperature thermal carbonisation might be the ultimate solution to the growing disposal problem of CopperChromeArsenic-treated waste wood. This energy and material recuperating technology is currently in the process of upscaling to an industrial level. In the present study, a numerical model is developed in COMSOL Multiphysics that allows to investigate the temperature profiles, gas ...
M.S. Yeoman, E. Sultan
Continuum Blue, Tredomen, Ystrad Mynach, United Kingdom
College of Technological Studies, PAAET, Adailiyah, Kuwait
The modeling of light propagation through multiple layers of biological tissue are assessed & compared to the theoretical predictions by Perelman at al. [94 & 95] of the most-favorable-path (MFP). The MFP on which photons will be found can be obtained from the path of the net flux propagation using the diffusion equation. The diffusion equation is valid when studying diffuse light propagation, ...
S.F. Neves, J.J.B.L.M. Campos, T.S. Mayor
CEFT – Transport Phenomena Research Center, Chemical Engineering Department, Porto University, Porto, Portugal
CeNTI - Centre for Nanotechology and Smart Materials, Rua Fernando Mesquita, Vila Nova de Famalicão, Portugal
A clothing system should offer the user a period of relatively comfort. However, changes in the ambient conditions over day affect the heat and mass transport in the system, influencing the user comfort perception. In order to gather information to allow the optimization of clothing systems, it is essential to understand the heat and moisture transfer occurring across multi-layer textiles. For ...