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5. CRREL Report

Title:	Suppression of ice fog from cooling ponds
Authors:	University of Alaska Fairbanks. McFadden, Terry T.
Keywords:	Control Fog Cooling ponds Ice fog Eielson Air Force Base (Alaska) Modification Fairbanks, Alaska
Publisher:	Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.)
Description:	CRREL Report Abstract: Ice fog generated at the Eielson AFB power plant cooling pond contributes heavily to the total ice fog problem on the base. Several methods for ice fog suppression were studied and two techniques were tested experimentally. Experiments were also conducted to determine the magnitude of the various modes of heat transfer within the pond's microclimate. Values of evaporative and radiative heat loss during ice fog are presented. Ice cover is shown to be an effective ice fog suppression technique. Monomolecuiar films are also shown to be effective and offer some unique advantages, such as ease of application and low overall cost. The heat normally lost to evaporation must be dissipated by other means during suppression. With the ice cover technique this is accomplished by melting the ice cover. During suppression with monomolecuiar films, the heat must be dissipated by increasing radiative and convective losses. The simplicity of application of monomolecuiar films, along with their lower cost, combine to make this technique attractive; however, the lower pond temperatures and increased suppression effectiveness weigh heavily in favor of the ice cover technique. More exhaustive testing will provide a better understanding of the problems involved in using the ice cover method of suppression.
Rights:	Approved for public release; distribution is unlimited.
URI:	http://hdl.handle.net/11681/9488
Appears in Collections:	CRREL Report