Journal of Engineering Sciences

Author(s): Arseniev V. M., Shulumei A. V.

Affilation(s): Sumy State University, 2 Rymskogo-Korsakova St., Sumy 40007, Ukraine

^*Corresponding Author’s Address: [email protected]

Issue: Volume 5; Issue 2 (2018)

Dates:
Paper received: June 22, 2018
The final version of the paper received: October 5, 2018
Paper accepted online: October 10, 2018

Citation:
Arseniev V. M., Shulumei A. V. (2018). Numerical Simulation of the Evaporative Air Cooler with a Capillary-Porous Structure. Journal of Engineering Sciences, Vol. 5(2), pp. F7-F12, doi: 10.21272/jes.2018.5(2).f2

DOI: 10.21272/jes.2018.5(2).f2

Research Area: CHEMICAL ENGINEERING: Processes in Machines and Devices

Abstract. Application of evaporative air cooling in various technologies allows reducing energy costs for improving environmental performance. Considering the promise of using air coolers with a capillary-porous structure, a mathematical model of the working process for such devices of contact heat of mass transfer was developed. The model takes into account the completeness of the process with temperature efficiency equal to 0.6–0.7 at constant water temperature at the temperature level of the wet thermometer. The estimation of energy efficiency of the air cooler on the basis of the exergent method of thermodynamic analysis is proposed. As a result, the thermophysical and design model of evaporative cooling of air in air-cooled contact type with capillary-porous structures was developed. The proposed method of cooling air is characterized by the following advantages the lowest water consumption per unit of heat exchange surface compared with other methods (e. g. spray nozzles), as well as zero discharge of drip liquid, which does not require further separation. Finally, the estimation of energy efficiency of the air vent is proposed on the basis of the exergent method of thermodynamic analysis.

Keywords: evaporative cooling, capillary-porous structure, thermophysical modelling, exergy efficiency.

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