Axial temperature profile of ohmically ...
Document type :
Article dans une revue scientifique
Permalink :
Title :
Axial temperature profile of ohmically heated fluid: analytical model and experimental validation
Author(s) :
Zaid, I. [Auteur]
Maingonnat, J.F. [Auteur]
Delaplace, Guillaume [Auteur]
Processus aux Interfaces et Hygiène des Matériaux [PIHM]
Ghnimi, Sami [Auteur]
Université de Technologie de Compiègne [UTC]
Maingonnat, J.F. [Auteur]
Delaplace, Guillaume [Auteur]
Processus aux Interfaces et Hygiène des Matériaux [PIHM]
Ghnimi, Sami [Auteur]
Université de Technologie de Compiègne [UTC]
Journal title :
Chemical Engineering Science
Publisher :
Elsevier
Publication date :
2009-07
ISSN :
0009-2509
English keyword(s) :
ohmic process
temperature profile
heat transfer
food processing
infrared thermography
temperature profile
heat transfer
food processing
infrared thermography
HAL domain(s) :
Sciences de l'ingénieur [physics]/Génie des procédés
English abstract : [en]
Temperature profile of an ohmically heated fluid jet was determined both by experimental measurements and analytical model. Heat loss to the environment and viscous dissipation were considered negligible in the simulation ...
Show more >Temperature profile of an ohmically heated fluid jet was determined both by experimental measurements and analytical model. Heat loss to the environment and viscous dissipation were considered negligible in the simulation results. We also assumed that electrical heating rate is zero outside the fluid jet. The model predictions yielded good agreement with the experimental infrared thermography measurements. Parameters affecting temperature distribution in the fluid jet were studied such as mass flow-rate, impingement distance of the jet, heating power and specific electrical conductivity. The simulation and also experimental trials show that the principal critical process factor in fluid jet ohmic heater was the fluid level and one can deduce its great impact on the thermal treatment. This study can be used for designing and controlling this ohmic heater to ensure thermal sterilization and safety of ohmically heated food products.Show less >
Show more >Temperature profile of an ohmically heated fluid jet was determined both by experimental measurements and analytical model. Heat loss to the environment and viscous dissipation were considered negligible in the simulation results. We also assumed that electrical heating rate is zero outside the fluid jet. The model predictions yielded good agreement with the experimental infrared thermography measurements. Parameters affecting temperature distribution in the fluid jet were studied such as mass flow-rate, impingement distance of the jet, heating power and specific electrical conductivity. The simulation and also experimental trials show that the principal critical process factor in fluid jet ohmic heater was the fluid level and one can deduce its great impact on the thermal treatment. This study can be used for designing and controlling this ohmic heater to ensure thermal sterilization and safety of ohmically heated food products.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Non spécifiée
Popular science :
Non
Related reference(s) :
Administrative institution(s) :
CNRS
Université de Lille
ENSCL
INRA
Université de Lille
ENSCL
INRA
Collections :
Research team(s) :
Processus aux Interfaces et Hygiène des Matériaux (PIHM)
Submission date :
2022-02-01T13:43:11Z