Ice rink simulation based on CO2 transcritical refrigeration system
With reference to the ice structure of the National Speed Skating Hall,the ice structure model of an indoor rec-reational ice rink in Tianjin was established.SpaceClaim module in ANSYS software was used to build the model,and Fluent module was used for grid division and operation calculation to simulate the heat transfer of the ice rink.The influence of cooling pipe diameter,cooling pipe spacing and distance between cooling pipe and ice surface on the maximum temperature of ice surface was analyzed respectively.The results show that the larger the diameter of cooling pipe,the smaller the distance between cooling pipe and ice surface,and the lower the ice surface temperature is.In summer,the maximum temperature of the ice surface can be as low as-7.02 ℃ when the diameter of the cooling pipe is larger.The maximum temperature of the ice surface can be as low as-8.16 ℃ when the distance between the cooling pipes is smaller.The greater the distance between the cooling pipe and the ice surface,the maximum temperature of the ice surface is closer to 0 ℃.
NETL
NSTL
万方数据
