Details

Autor(en) / Beteiligte

• Burkov, Ivan A.
• Kolosov, Michail A.
• Zharov, Anton A.
• Kolishkin, Leonid М.
• Andreev, Nikolay A.

Titel

Mathematical modeling of heat and mass transfer processes of air masses in premises with an ice arena

Ist Teil von

• Refrigeration Technology, 2021-02, Vol.110 (2), p.77-84

Erscheinungsjahr

2021

Beschreibungen/Notizen

• BACKGROUND: The ventilation and air conditioning systems for ice arenas should not only provide a comfortable environment for the people indoors and on the ice but also protect the ice surface from moisture condensation. The use of finite element methods in designing the ventilation systems will make it possible to determine the temperature and humidity conditions in the entire volume of the ventilated room at the calculation stage and, if necessary, to correct the ventilation parameters at minimal costs at the design stage. AIM: To describe the methods of numerical simulation of heat and mass transfer in a room taking into account the humidity and radiant heat exchange for the case of a small training arena. MATERIALS AND METHODS: ANSYS CFX software was used for modeling, using the finite volume method for calculations. The object of the study was a digital twin of a small training ice arena, making it possible to take into account the thermal-physical processes occurring in the room. Analysis was performed for the steady-state (stationary) heat and mass transfer condition. The modeling results were evaluated by considering air temperature and humidity contours in the most characteristic secant planes. Given that the direct determination of air humidity was not possible using the software package, a description of a method for the determination of humidity by empirical equations was provided. RESULTS: It was numerically established that the air targets are met in the ice arena under the given parameters of operation of the ventilation system, with no moisture condensation on the surface of the ice, and comfortable conditions maintained in the areas where people are present. CONCLUSION: The modeling of the heat and mass exchange processes in the ice arena room makes it possible to avoid ice damage from moisture condensation as well as ensure the comfort of people present on the ice and in the bleachers.