Effects of Bubble Size and Diffusing Area on Destratification Efficiency in Bubble Plumes of Two-Layer Stratification
Publication: Journal of Hydraulic Engineering
Volume 136, Issue 2
Abstract
Effects of bubble size, bubble diffusing area, and other parameters in air diffusers on destratification are studied using laboratory- and pilot-scale tanks with two layers. Dimensionless group involving such variable as bubble size, bubble diffusing area, and tank area are used to quantify these effects. Based on the results of experiments, a model is developed to predict destratification efficiency. Bubble diameter and overall tank area are found inversely related to destratification efficiency while bubble diffusing area is directly related to destratification efficiency.
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Acknowledgments
This work was carried out in partial fulfillment of the requirements for the degree of Ph.D. of the first and second writers and supported by the Sustainable Water Resources Research Center of 21st Frontier Research Program (Grant No. UNSPECIFIED1-6-3). The writers thank Korea Water Resources Corporation (KWATER) and Hyorim Industries Inc. for their help. The writers are also grateful to anonymous reviewers for their valuable comments and suggestions.
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Information
Published In
Journal of Hydraulic Engineering
Volume 136 • Issue 2 • February 2010
Pages: 106 - 115
Copyright
© 2010 ASCE.
History
Received: Aug 30, 2007
Accepted: Aug 6, 2009
Published online: Aug 8, 2009
Published in print: Feb 2010
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