Differential distribution of disperse masses in turnover cooling systems with vapor coolers
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 68
Abstract
A technique for estimating the differential distribution of dispersed masses in circulating cooling systems with evaporative coolers is developed. The mass of the dispersed phase is formed when the circulating water is supersaturated with poorly soluble compounds and forms sludges and surface sediments. Dispersed masses are formed in condensers and cooling towers due to the shift of the carbon dioxide equilibrium and super saturation of the circulating water during its evaporation. The specific dispersed mass is determined from the difference between the experimental and calculated values of the carbonate and bicarbonate alkalinity of the circulation water and the similar pH difference. The ratio of the adhesive precipitated dispersed mass on the surfaces of suspended particles and structural elements is proportional to the ratio of their areas. The ratio of the accumulated dispersed mass in the sediments of the condenser and the cooling tower is proportional to the ratio of the products of the apparatus structural areas and the time of contact with them of a single volume of water. The distribution of the dispersed mass between the sediments on the surfaces of the heat exchange of the condensers, the cooling of the cooling towers and the sludge in the circuits of the two-stage cooling system of Rivne NPP is estimated. It is shown that in the surface sediments up to 2 ... 3% of the dispersed mass precipitated is concentrated, and the sediment rate in the condenser is 3 ... 7 times higher than in the cooling tower.
Authors and Affiliations
A. B. , Gulyaenko, V. V. , Makedon, A. V. , Shulga
Keywords
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