热舒适性
相对湿度
辐射冷却
环境科学
平均辐射温度
冷负荷
湿度
气象学
空气温度
空调
热的
辐射能
表观温度
暖通空调
阿什拉1.90
通风(建筑)
辐射采暖
工作温度
气流
建筑工程
保温
被动冷却
天花板(云)
空气流速
大气科学
传热
工程类
水冷
室内空气
自然通风
材料科学
机械
环境工程
机械工程
光学
物理
辐射
复合材料
气候变化
生物
生态学
作者
Shiyin Qin,Xin Cui,Chun Yang,Liwen Jin
标识
DOI:10.1177/1420326x20961142
摘要
Radiant system has been increasingly applied in buildings due to its good thermal comfort and energy-saving potential. In this research, a simplified predicted mean vote (PMV) model and sensible cooling load equation were proposed based on human thermal comfort. Simulations were carried out using Airpak to explore relationships among thermal comfort characteristics, design and operation parameters. Results show that radiant surface temperature, fresh-air supply temperature and the area ratio are correlated approximately linearly with the indoor air temperature, while the relative humidity has little effect on the indoor air temperature. The indoor air velocity in the simulated environment was no more than 0.15 m/s, satisfying the requirements of limit values in the occupied zone. The results indicate that the optimum radiant surface temperature ( t c ) is 19°C to 23°C when fresh-air supply temperature ( t s ) is 26°C. The relative humidity ( φ) should be maintained at 50% to 70%, and the area ratio of radiant panels to total surfaces ( k 1 ) should be kept within 0.15 to 0.38 when the radiant surface temperature is 20°C and the fresh-air supply temperature is 26°C. The simplified PMV model and the sensible load equation can provide reference for panel design based on characteristics of radiant cooling panels with a dedicated fresh-air system.
科研通智能强力驱动
Strongly Powered by AbleSci AI