Development of methodology and programme for calculation of air parameters for air conditioning and ventilation of indoor skating rinks
Introduction. In premises with artificial ice, which include indoor ice rinks and ice arenas, in order to prevent ice softening, fog formation and condensate precipitation, the convective component of heat exchange should be spent on cooling the air of the ice field area to standardized values. Thus...
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| Format: | Article |
| Language: | English |
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Moscow State University of Civil Engineering (MGSU)
2023-11-01
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| Series: | Vestnik MGSU |
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| Online Access: | https://www.vestnikmgsu.ru/jour/article/view/115 |
| Summary: | Introduction. In premises with artificial ice, which include indoor ice rinks and ice arenas, in order to prevent ice softening, fog formation and condensate precipitation, the convective component of heat exchange should be spent on cooling the air of the ice field area to standardized values. Thus, the accuracy of the calculation of microclimatic parameters depends not only on the comfort of people on the field, but also on the qualitative characteristics of the ice. The presented article is devoted to the development of a methodology and a programme for calculating these parameters when designing ventilation and air conditioning systems.Materials and methods. To improve the calculation accuracy, a new method of analytical determination of air condition parameters in the ice field area of indoor ice rinks and ice arenas is proposed. This method differs from the existing ones by application of iterative calculation method when choosing the optimal ratio of air flow rates at the first and second stages of recirculation, which makes it possible to exclude additional cooling of the inflow during the cold season.Results. The developed method is implemented in the algorithm of the programme for calculation of the required parameters and takes into account the modern data of numerical modelling of temperature fields in the served area, the corrected range of the temperature gradient value by the height of the room under consideration and the mass transfer coefficient determined using the theory of triple analogy of heat and mass transfer processes.Conclusions. The proposed methodology and calculation programme make it possible to increase the accuracy of determining temperature, moisture content, partial pressure and enthalpy determination when designing ventilation and air conditioning systems for rooms with artificial ice, which contributed to the reduction of excessive energy costs when processing air in the central air conditioner. |
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| ISSN: | 1997-0935 2304-6600 |