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Study of Plunging Hollow-jet Aerators using Non-dimensional Parameters

Publication Type : Journal Article

Publisher : Institution of Engineers (India)- EN

Source : Institution of Engineers (India)- EN, Volume 91, Issue 1, p.20-26 (2010)

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Keywords : Activated sludge process, Aeration, Dimensional analysis, Froude number, Overall oxygen transfer factor, Package plants, Plunging hollow jet aerator

Campus : Coimbatore

School : School of Engineering

Department : Civil

Year : 2010

Abstract : Plunging hollow jet aerators consist of a cone, which deflects water at the end of a discharging pipe through the annular opening forming a hollow jt on the water surface, thus creating high turbulence and entaring large quantities of air. The effciency E of the device was high ( .5 kg./kWh) for the small opening between the pipe and the cone. The significance of the present work is that, the results are expressed by a graph between the non-dimensional variables. the gap between the cone and the pipe; K L A, the overall transfer factor and Q is the discharge. In addition, the non-dimensuional quantity 'E s' involiving efficiency could be expressed as a function of F 1. the graphs allow the extension of results to a wide range of sizes.

Cite this Research Publication : Dr. Mini K. M., .G.Kaimal, M., and N Pillai, N., “Study of Plunging Hollow-jet Aerators using Non-dimensional Parameters”, Institution of Engineers (India)- EN, vol. 91, no. 1, pp. 20-26, 2010.

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