Abstract
The design of cooling tower`s filler unit, consisting of inclined-corrugated contact elements, and made of polymer material, is developed and described in this research paper. The experimental studies were conducted to determine the efficiency of cooling the circulating water in the proposed cooling tower. The authors obtained the results of evaluating the heat-mass transfer efficiency coefficient of cooling tower, when changing the mass flow rates of liquid and gas phases. The research results showed that the highest efficiency of cooling the circulating water is observed at relatively low irrigation densities equal to 15-25 m3/(m2·h), while the heat-mass transfer efficiency of cooling tower achieves 72%.The use of non-metal materials as the main elements of cooling tower allows to abandon the use of chemical reagents against bacteria and microorganisms in favor of circulating water ozonation method.
Highlights
The circulating water supply at the enterprises of many industries, such as chemical, energy, petrochemical and others is increased every year, allowing to reduce the use of water from natural sources, thereby preventing the environmental pollution and contamination.The circulating water supply at the industrial enterprises often acts as a cooler or heat carrier, while cooling the main process equipment
The most common are the fan-type evaporative cooling towers, where liquid is cooled by its contact with air, as well as due to the partial evaporation of water
The evaporated part of liquid is replenished with the feed water from a natural source
Summary
The circulating water supply at the enterprises of many industries, such as chemical, energy, petrochemical and others is increased every year, allowing to reduce the use of water from natural sources, thereby preventing the environmental pollution and contamination. A huge amount of various deposits accumulate on the surface of equipment, which have a negative impact on the performance of cooling tower, starting with the disruption of liquid flow structure and finishing with the destruction of cooling equipment The polymer materials, compared to wooden and metal ones for the checker filling units, do not have good wettability, in order to achieve high cooling efficiency, it is necessary to intensify the heat-mass transfer processes by applying various roughnesses, porosities, perforations to the surface of polymers, as well as other methods of intensification. The organization of technological process in the circulating water supply system implies taking into account the above requirements, as well as the use of checker filling unit design, which allows to increase the efficiency of cooling process, to reduce energy costs with minimal hydraulic resistance of contact devices
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