Processing of temperature field in chemical microreactors with infrared thermography
This work is devoted to the first analysis of temperature fields related to chemical microfluidic reactors. The heat transport around and inside a microchannel is both convective and diffusive with spatial distribution of source terms and strong conductive effects in the channel surrounding. With simplified assumptions, it is shown that Infrared thermography and processing methods of the temperature frames allow to estimate important fields for the chemical engineers, such as the heating source distribution of the chemical reaction along the channel. A validation experiment of a temperature field processing method is proposed with Joule effect as calibrated source term and non reactive fluids. From such previous experiment, a Peclet field is estimated and used in a further step in order to study an acid-base flow configuration
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PAILHES, Jérôme; PRADERE, Christophe; BATTAGLIA, Jean-Luc; TOUTAIN, Jean; KUSIAK, Andrzej; AREGBA, Aworou Waste; BATSALE, Jean-Christophe (Elsevier, 2012)A new method based on the thermal quadrupoles technique for heat transfer modelling in multilayered slabs with heat sources is proposed. Classical thermal quadrupoles use hyperbolic functions and numerical problems occur ...
Analyse de la congélation de tissus biologiques à l’échelle cellulaire par Thermographie InfraRouge PRADERE, Christophe; TOUTAIN, Jean; BAMFORD, Matthieu; BATSALE, Jean-Christophe (Société Française de Thermique / Congrès Français de Thermique, 29 mai - 1 juin 2007, Île des Embiez, 2007)Ce travail concerne l'étude de la congélation de tissus biologiques avec des premiers résultats d’analyse de champs de température obtenus par thermographie infrarouge. On montre plusieurs configurations expérimentales ...
Quantitative thermal analysis of heat transfer in liquid–liquid biphasic millifluidic droplet flows ROMANO, Marta; PRADERE, Christophe; TOUTAIN, Jean; HANY, Cindy; BATSALE, Jean-Christophe (Taylor & Francis, 2014)In this paper, infrared thermography is used to propose a simple quantitative approach toward understanding the thermal behaviour of a liquid–liquid biphasic millifluidic droplet flow under isoperibolic conditions. It is ...
A millifluidic calorimeter with InfraRed thermography for the measurement of chemical reaction enthalpy and kinetics HANY, Cindy; PRADERE, Christophe; TOUTAIN, Jean; BATSALE, Jean-Christophe (Taylor & Francis, 2012)The aim of this work is to present an infrared calorimeter for the measurement of the kinetics and the enthalpy of high exothermic chemical reactions. The main idea is to use a millifluidic chip where the channel acts as ...
PRADERE, Christophe; CAUMES, Jean-Pascal; BENKHEMIS, S.; PERNOT, Jean-Philippe; PALOMO, Elena; DILHAIRE, S.; BATSALE, Jean-Christophe (AIP Publishing, 2014)GigaHertz (GHz) thermoreflectance technique is developed to measure the transient temperature of metal and semiconductor materials located behind an opaque surface. The principle is based on the synchronous detection, using ...