Numerical simulation of heat transfer in direct evaporative artificial ice rink
With the coming of 2022 Beijing Winter Olympic Games,China's artificial ice rink construction will be rapid development.The heat transfer in a direct evaporation rink was investigated by numerical simulation.The results showed that the influence of the antifreeze tube temperature change on the ice surface temperature can be ignored.The evaporation temperature of working medium in the ice rink cooling tube is between-32.000--22.400 ℃.With the ice surface temperature decreasing by 1.000 ℃,the cooling load of the ice rink increases by 5.9 W/m2,and the evaporation temperature of working medium in the cooling pipe decreases by 1.200-1.500 ℃.With the increase of the pipe spacing,the evaporation temperature of working medium in the cooling pipe and the uniformity of the ice surface temperature decrease.When the spacing increases from 30 to 60 mm,the evaporation temperature of working medium in the cooling pipe decreases by 15.9％,the maximum temperature difference of ice surface temperature increases from 0.004 to 0.111 ℃.
NETL
NSTL
万方数据
维普
