亲子乐园空调送风方式的数值模拟研究

大型综合室内亲子乐园属于高大空间,设有游乐设施和游戏的特殊性使得对空间的舒适性要求一致,但是送风气流遇阻严重,室内存在较多气流死角,影响室内空气质量和儿童健康。因此其空调设计不仅需要考虑温度、风速的空间均匀度,还要考虑各点的空气龄和PMV-PPD指标。以天津某亲子乐园为研究对象,利用scSTREAM软件对适用于该房间的辐射供冷加新风、置换通风、混合通风三种空调方式的送风效果进行数值模拟分析,从流场的均匀性、人员的热舒适性等方面对模拟结果进行探讨,研究结果表明辐射供冷加新风方式的空间均匀性和PMV指标最佳,混合通风方式的空气龄最小。

Numerical Simulation Study on Air Supply Mode of Air Conditioning in Parent-child Park

The large-scale integrated indoor parent-child park belongs to the high-altitude space.The special features of the rides and games make the space comfort requirements consistent,but the airflow is severely blocked,and there are more airflow corners in the room,which affects indoor air quality and children's health.Therefore,its air conditioning design not only needs to consider the spatial uniformity of temperature and wind speed,but also consider the air age and PMV-PPD indicators at each point.This paper takes a parent-child paradise in Tianjin as the research object,and uses the scSTREAM software to numerically simulate the air supply effect of the three types of air conditioning methods:radiant cooling,fresh air replacement,mixed ventilation and air conditioning,which is suitable for the uniformity of the flow field.The simulation results are discussed in terms of the thermal comfort of the personnel.The results show that the spatial uniformity and PMV index of the radiant cooling and fresh air method are the best,and the air age of the mixed ventilation method is the smallest.