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Heat transfer studies on canned part...

McGill University (Canada).

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Heat transfer studies on canned particulate viscous fluids during end-over-end rotation.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Heat transfer studies on canned particulate viscous fluids during end-over-end rotation./
作者:	Meng, Yang.
面頁冊數:	170 p.
附註:	Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1373.
Contained By:	Dissertation Abstracts International68-03B.
標題:	Agriculture, Food Science and Technology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=NR25208
ISBN:	9780494252086

Heat transfer studies on canned particulate viscous fluids during end-over-end rotation.
Meng, Yang.

Heat transfer studies on canned particulate viscous fluids during end-over-end rotation. - 170 p.

Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1373.

Thesis (Ph.D.)--McGill University (Canada), 2006.

Heat transfer in canned particulate system in Newtonian and non-Newtonian liquids was studied during end-over-end agitation thermal processing in a pilot scale rotary retort. Computational methods for conventional overall heat transfer coefficient (U) and fluid to particle heat transfer coefficient (hfp) were found unsuitable in high viscosity fluids. A methodology for evaluating an apparent heat transfer coefficient (hap) between retort medium and particle, and an apparent overall heat transfer coefficient Ua between retort medium and can fluid was proposed. Use of h ap and Ua concepts permitted direct predictions of particle temperature and lethality based on retort temperature.

ISBN: 9780494252086Subjects--Topical Terms:

1017813
Agriculture, Food Science and Technology.

Heat transfer studies on canned particulate viscous fluids during end-over-end rotation.
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245 1 0 $a Heat transfer studies on canned particulate viscous fluids during end-over-end rotation.
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500 $a Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1373.
502 $a Thesis (Ph.D.)--McGill University (Canada), 2006.
520 $a Heat transfer in canned particulate system in Newtonian and non-Newtonian liquids was studied during end-over-end agitation thermal processing in a pilot scale rotary retort. Computational methods for conventional overall heat transfer coefficient (U) and fluid to particle heat transfer coefficient (hfp) were found unsuitable in high viscosity fluids. A methodology for evaluating an apparent heat transfer coefficient (hap) between retort medium and particle, and an apparent overall heat transfer coefficient Ua between retort medium and can fluid was proposed. Use of h ap and Ua concepts permitted direct predictions of particle temperature and lethality based on retort temperature.
520 $a An L-16 orthogonal experimental design of experiments was carried out to select system factors that significantly affected hap and U a values for particles in high viscosity non-Newtonian and Newtonian fluids. Experiments using central composite rotatable design and full factorial design were carried out to study the effects of selected significant factors on hap and Ua.
520 $a Using all data obtained, dimensionless correlations were developed for the prediction of hap and Ua values. The developed correlations showed a good agreement with the experimental data. More precise predictions were achieved with trained artificial neural network (ANN) models. The results of ANN models could be compiled using algebraic equations and were included so that hap and Ua values could be predicted without actually using the ANN software. A flow visualization study was conducted to better understand the heat transfer behavior in high viscosity fluids. Results showed that in particulate high viscosity fluids, the particle liquid relative movement was very weak, implying that the heat transfer between them could converge to conduction-conduction rather than convection-conduction, which results in erroneous and unusually large hfp values.
590 $a School code: 0781.
650 4 $a Agriculture, Food Science and Technology. $3 1017813
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710 2 $a McGill University (Canada). $3 1018122
773 0 $t Dissertation Abstracts International $g 68-03B.
790 $a 0781
791 $a Ph.D.
792 $a 2006
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