Indexing Gas Transfer in Self‐Aerated Flows
Publication: Journal of Environmental Engineering
Volume 116, Issue 3
Abstract
An indexing relationship, used to index and directly compare measurements, is developed for liquid phase‐controlled gas transfer in self‐aerated flows from theoretical considerations. The indexing relation is shown to describe temperature effects as well as existing equations that use fitted coefficients. The relation may be used to index adsorption and volatilization rates of any compound exhibiting liquid phase controlled gas transfer and may be used to compare the gas transfer measurements of different compounds. It is proposed that the relationship be used to index liquid phase controlled gas transfer measurements in self‐aerated flows to a common reference temperature, 20° C, and to a gas, oxygen, most often used in gas transfer experiments. The indexing relationship is also shown to be valid for any bubbly flow where the gas transfer is predominantly across the bubble interface, such as occurs with aeration bubblers.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 116 • Issue 3 • May 1990
Pages: 503 - 523
Copyright
Copyright © 1990 ASCE.
History
Published online: May 1, 1990
Published in print: May 1990
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