Hot water cooling from spray arrays

The interaction that takes place between adjacent flat hot water sprays for various configurations of nozzles in spray arrays is investigated. A nozzle cooling efficiency was defined in terms of the local wet bulb temperature. The interaction between sprays was determined by finding the overall nozzle cooling efficiency for the array. A dimensional analysis of the experimental data showed that an optimum spacing exists between nozzles in a spray array and can be determined in terms of the equivalent orifice diameter and the spray Reynolds number. A step-by-step procedure was outlined which allows a designer of a spray cooling system to determine the spray conditions necessary for producing a required amount of cooling.