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On a global scale, many cooling towers and contact elements occur in a variety of types. In this paper, a new design of the tower with the technology of contactless evaporation cooling has been presented. Experimental studies of the efficiency of heat and mass transfer processes in the inclined-corrugated element with the advanced gas-liquid contact surface as metal mesh were performed. Results of the change in the efficiency of heat and mass transfer processes from various gas velocity and the ratio of mass flow ratio of liquid and gas phases were reported. Comparative analysis of the influence of specific surface of phase contact on the efficiency of cooling circulating water was carried out. It was found that the use of additional contact surface of the phases allows increasing the efficiency of thermal and mass transfer on average of 44.8% and 54.2%, respectively. The mean-flow air velocity without entrainment of liquid from the apparatus reaches 2.7 m/s.

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This paper deals with the studies of cooling tower, operated with the contactless evaporative cooling technology. The authors developed the cooling tower with a three-flow liquid cooling system. The authors conducted the numerical studies of gas-liquid flow dynamics in the inclined-corrugated elements of checker filling unit that allows to give us an idea of two-phase flow structure, its movement throughout the checker filling, as well as to assess the influence of mode parameters on the efficiency of collecting the liquid drops and the range of stable operation of device. The most effective operation of this device is at the pressure drop of 100 Pa, while developing the average air flow rate in the element up to 3.2 m/s.

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.