Doctoral Dissertations
Abstract
"Evaporation of water through nonwettable porous membranes has been studied under various pressures with various membrane thicknesses. The results of previous investigations at 1 atmosphere have been correlated into one equation for mass transfer resistance which has also been found to fit approximately new data obtained of 1.5, 2, and 3 atmospheres in this investigation. In the new data fluxes varied from 0.064 to 0.691 lb./ft.²/hr. through glass fiber-Teflon membrane from 0.02 to 0.08 inch in thickness. Temperatures ranged for 80 to 260°F. A more theoretical equation has been developed to explain variations from the equations based on 1 atmosphere data. This equation fits data under all pressures studied and is based on ordinary diffusion theory extended to include Knudsen diffusion effects, theoretical heat conduction through the membrane, and liquid film heat transfer coefficients. A relationship is also developed for mass transfer if concentration build-up is appreciable, and equations are given for the heat conducted through the membrane"--Abstract, page ii.
Advisor(s)
Findley, Marshall E., 1927-1991
Committee Member(s)
Crosser, Orrin K.
Schwartz, Henry G.
Park, Efton
Wellek, Robert M.
Chen, T. S.
Department(s)
Chemical and Biochemical Engineering
Degree Name
Ph. D. in Chemical Engineering
Publisher
University of Missouri--Rolla
Publication Date
1969
Pagination
xii, 106 pages
Note about bibliography
Includes bibliographical references (pages 101-105).
Rights
© 1969 Chung-Liang Yeh, All rights reserved.
Document Type
Dissertation - Open Access
File Type
text
Language
English
Subject Headings
Heat -- Transmission
Mass transfer
Membranes (Technology) -- Materials
Thesis Number
T 2259
Print OCLC #
19319166
Electronic OCLC #
835144101
Link to Catalog Record
Recommended Citation
Yeh, Chung-Liang, "Mass and heat transfer through nonwettable porous membranes" (1969). Doctoral Dissertations. 2206.
https://scholarsmine.mst.edu/doctoral_dissertations/2206