Experimental Study of Stratified Cooling Ponds

by Roland Luxenberg, MIT, R. M. Parsons Lab, Cambridge, MA, USA,
E. Eric Adams, MIT, R. M. Parsons Lab, Cambridge, MA, USA,



Document Type: Proceeding Paper

Part of: Water for Resource Development

Abstract: Experiments in a laboratory physical model were conducted to analyze the hydrothermal performance of vertically stratified cooling ponds. Temperature, velocity, and fluorescent dye measurements were made. Particular attention was paid to identifying discharge structures that would minimize entrance mixing and thereby maximize surface heat transfer. The use of a submerged radial weir as an alternative to traditional rectangular channel discharges was investigated. Sensitivity to intake location and the significance of far field mixing processes (longitudinal dispersion, shear induced entrainment, and penetrative convection due to heat loss) were also explored.

Subject Headings: Ponds | Hydrologic models | Water stratification | Cooling (wastewater treatment) | Temperature effects | Heat transfer | Entrainment

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