Performance Evaluation and Design of a New Cooling Tower Spray System for Uniform Water Distribution |
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Authors: | Daniël Roux |
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Affiliation: | Mechanical and Mechatronic Department, Stellenbosch University, Stellenbosch, South Africa |
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Abstract: | ABSTRACTThe performance of wet cooling towers can be improved by installing sprayers that distribute the cooling water uniformly onto the fill while operating at a low pressure head. This paper presents the methodology that was followed to design a new cooling tower spray nozzle. The fluid dynamics of an orifice nozzle, such as the effect of a change in pressure head, spray angle, spray height, orifice diameter, and wall thickness on drop diameter and spray distance, is experimentally investigated, and ultimately a model with which a spray nozzle can be designed is presented. The manufacture and testing of a prototype spray nozzle show that it is possible to enhance the performance of sprayers and thus wet cooling towers by means of the methods presented. |
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