A Study on Mixing Characteristics of Convection Current Aeration System in Reservoir |
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학술지명 The 6th East Asia Dam Conference
저자 이요상,이광만
발표일 2009-10-26
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This study examines the operational effectiveness of a Convection Current Aeration System(CCAS) in reservoir. CCAS was run from June, 2008 when the thermocline begun forming in the reservoir. This paper reviews the influence of stratification, dissolved oxygen dynamics and temperature in the lake’s natural state from June to October 2008. The survey was done on a week basis. Upwelling flow effects a radius of 7-10 m at a surface directly and was irrelevant to the strength of thermocline. On the other hand, it was affected the number of working days, and strength of thermocline at vertical profiles of the reservoir. Longer CCAS run, the deeper was the vertical direct flow area. However it didn't break the thermocline during summer season of 2008. |