On Problem of Mathematical Modelling of Thermo-Physical Processes in Regenerative Water-Evaporating Coolers

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Gulevsky, V.A.^1 ; Shatsky, V.P.^1 ; Osipov, E.I.^1 ; Menzhulova, A.S.^1

Voronezh State Agricultural University Named after Emperor Peter the Great, 1 Michurina St., Voronezh

394087, Russia^1

关键词: Aerodynamic resistance;    Ecological safety;    Heat-mass transfer;    Indirect cooling;    Iterative algorithm;    Low-power consumption;    Physical process;    Transverse thermal conductivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/2/022048/pdf
DOI  :  10.1088/1757-899X/327/2/022048

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

For cooling the air environment of industrial premises water-evaporating air, conditioners are being increasingly applied. The simplicity of their construction, ecological safety and low power consumption distinguish them from the coolers of other types. Cooling the processed air is due to the loss of energy for the evaporation of moisture from the surface of the water-wetted plates that form air channels. As a result of this process, cooled air is often saturated with moisture, which limits the possibilities for the operation of the coolers of this type. In these cases, more complex coolers of indirect principle without such drawback should be applied. The most effective modification of indirect cooling is the installation of recuperative principle units. The paper presents a mathematical model of heat-mass transfer in such water-evaporating coolers. The scheme of realization of this model based on an iterative algorithm of solution of the system of finite-difference linear equations that takes into account longitudinal and transverse thermal conductivity of the heat transfer plates is suggested. The possibility of obtaining the optimal values of the redistribution of the main and auxiliary air flows through the substantiation of the aerodynamic resistance of the output grid is proved. This allows refusing the inclusion in the additional system cooling fan unit for discharging an auxiliary stream of air.