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PARTICLE/FLUID INTERFACE HEAT TRANSFER UNDER UHT CONDITIONS AT LOW PARTICLE/FLUID RELATIVE VELOCITIES 1
Author(s) -
CHANDARANA D. I.,
GAVIN A.,
WHEATON F. W.
Publication year - 1990
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.1745-4530.1990.tb00067.x
Subject(s) - newtonian fluid , heat transfer coefficient , particle (ecology) , heat transfer , non newtonian fluid , thermodynamics , mechanics , convection , convective heat transfer , materials science , chemistry , physics , geology , oceanography
Mathematical models are often used for determining commercial thermal process schedules for heterogeneous foods processed in an aseptic processing system. the particle/fluid interface convective heat transfer coefficient is a critical input parameter for these models and must be determined experimentally. Experiments were conducted at 129.4°C in a specially designed apparatus to determine the particle/fluid interface convective heat transfer coefficient for model food particles heated by Newtonian and non‐Newtonian fluids. Values of the heat transfer coefficient ranged between 55.63 and 89.5 W/m 10 C for particles heated in a non‐Newtonian fluid and between 65.67 and 107.11 W/m 20 C for particles heated in a Newtonian fluid.