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A FINITE ELEMENT METHOD to MODEL STEAM INFUSION HEAT TRANSFER to A FREE FALLING FILM
Author(s) -
McCARTHY KATHRYN L.,
MERSON RICHARD L.
Publication year - 1989
Publication title -
journal of food process engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 45
eISSN - 1745-4530
pISSN - 0145-8876
DOI - 10.1111/j.1745-4530.1989.tb00021.x
Subject(s) - froude number , heat transfer , mechanics , péclet number , thermodynamics , fluid dynamics , steam injection , work (physics) , finite element method , falling (accident) , churchill–bernstein equation , materials science , flow (mathematics) , physics , geology , petroleum engineering , medicine , environmental health , reynolds number , turbulence , nusselt number
This work is a theoretical and experimental analysis of heat transfer to a free falling film of homogeneous fluid food. Fluid falls vertically in a thin film through a stagnant steam environment. the thermal energy equation governing the steady state heat transfer is solved numerically by a finite element method. the Froude number and the Peclet number characterize the fluid flow and heat transfer. Water was used as the experimental test fluid in the steam infusion unit. Average fluid temperatures measured as a function of position compare well with model predictions. the model was incorporation into a kinetic model to predict the extent of microbial destruction expected with the time/temperature treatment.