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Distribution of Liquid‐Solid Heat Transfer Coefficient among Suspended Particles in Vertical Holding Tubes of an Aseptic Processing System
Author(s) -
FU WENRONG,
SUE YANCHUAN,
CHANG KE LIANG B.
Publication year - 1998
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1998.tb15706.x
Subject(s) - mass transfer , mass transfer coefficient , reynolds number , residence time (fluid dynamics) , heat transfer coefficient , sherwood number , residence time distribution , mechanics , thermodynamics , heat transfer , chemistry , range (aeronautics) , analytical chemistry (journal) , materials science , chromatography , flow (mathematics) , physics , composite material , turbulence , nusselt number , geotechnical engineering , engineering
Mass transfer coefficients between sucrose coated particles and water as the suspending fluid, were measured to obtain values of the heat transfer coefficient by analogy with mass transfer. In a vertical holding tube configuration, the mass transfer coefficient spanned considerable range for those particles with comparable residence time. At Reynolds number 26100, the average mass transfer Sherwood number expressed in terms of residence time was Sh= ‐110.4t+215.1, and it scattered normally with standard deviation 19.2. The results indicated that heat transfer coefficients vary among particles with different residence times and may be significantly different even for particles with the same residence time.