制冷剂辐射式供冷系统热舒适性研究
Thermal comfort of refrigerant radiant cooling systems
摘要:
以郑州市一采用制冷剂辐射式供冷系统的办公室样板间为例,利用Airpak3.0软件模拟分析了热泵标准制冷工况下、蒸发毛细盘管间距为100 mm时室内的温度场、速度场、相对湿度场、PMV和PPD分布云图。利用实验结果证明了模拟结果的可靠性。模拟结果显示:该办公室采用制冷剂辐射式供冷系统,仅距离地板0.36 m以上范围内能满足人体热舒适性要求。
Abstract:
Taking a sample office in Zhengzhou with a refrigerant radiant cooling system as an example, simulates the indoor temperature, the velocity field, the relative humidity field and the cloud distribution of PMV and PPD under the standard cooling condition of heat pump and the evaporate capillary coil spacing of 100 mm with Airpak3.0 software. Verifies the reliability of the simulation results with experimental data. The simulation results show that adopting the refrigerant radiant cooling system, the indoor occupants’ comfort requirements could be satisfied in the zone of over 0.36 m of the floor.
Keywords:refrigerant radiant cooling system, thermal comfort, temperature, velocity, relative humidity, predicted mean vote (PMV), predicted percentage of dissatisfied (PPD)