TY - JOUR
T1 - Mass transfer in inclined thin films with intermittent feed
AU - Brauner, Neima
AU - Maron, David Moalem
N1 - Funding Information:
We acknowledge with thanks the financial support of the Israel National Council for Research and Development and the sponsorship of Israel Desalination Engineering Ltd., Tel Baruch.
PY - 1983
Y1 - 1983
N2 - The various effects of intermittent feed on the transport characteristics of inclined thin films have been studied. An electrochemical technique, which provides local and instantaneous mass transfer rates between a liquid film and an inclined plate, is utilized. The results are discussed with reference to those obtained with identical continuous feed. Also, the theoretical rates based on smooth film are evaluated and compared with experimental rates. It has been found that intermittent feed enhances the transfer rates. The rate of enhancement critically relates to the mode of liquid distribution (dripping characteristics), the liquid rate, surface inclination and the distance downstream. Intermittent flow extends the fully developed wavy region. Therefore the enhancement of the transport rates owing to intermittent wavy flow can illuminate some of the effects of interfacial waviness on the transport phenomena.
AB - The various effects of intermittent feed on the transport characteristics of inclined thin films have been studied. An electrochemical technique, which provides local and instantaneous mass transfer rates between a liquid film and an inclined plate, is utilized. The results are discussed with reference to those obtained with identical continuous feed. Also, the theoretical rates based on smooth film are evaluated and compared with experimental rates. It has been found that intermittent feed enhances the transfer rates. The rate of enhancement critically relates to the mode of liquid distribution (dripping characteristics), the liquid rate, surface inclination and the distance downstream. Intermittent flow extends the fully developed wavy region. Therefore the enhancement of the transport rates owing to intermittent wavy flow can illuminate some of the effects of interfacial waviness on the transport phenomena.
UR - http://www.scopus.com/inward/record.url?scp=0141598845&partnerID=8YFLogxK
U2 - 10.1016/0300-9467(83)80004-5
DO - 10.1016/0300-9467(83)80004-5
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AN - SCOPUS:0141598845
SN - 0300-9467
VL - 26
SP - 105
EP - 117
JO - The Chemical Engineering Journal
JF - The Chemical Engineering Journal
IS - 2
ER -