摘要
研究了分体空调动态化送风装置。频谱特征分析表明,该装置可在风口和人员活动区产生与真实自然风信号接近的动态气流。通过气候室实验研究了等温送风工况下,不同背景温度时人体对气流的需求,并比较了仿自然风与稳态机械风(简称稳态气流)对人体热舒适的影响。结果表明,在28℃和30℃工况下,分别采用0.4~O.6m/s和0.7~0.9m/s的风速可以满足人体热舒适需求;相比于稳态气流,仿自然风具有更强的冷作用和更好的接受度,60%以上的受试者喜好仿自然风。
Develops the dynamic air supply device of split air conditioning to produce simulated natural wind(SNW), and the spectrum analysis results are very close to natural wind in occupied zone. Performs the climate chamber experiments to reveal the occupants' demand for air movement in different temperature environment and to compare the impacts of constant mechanical wind(CMW) and SNW on human thermal response. The results indicate that it is possible for subjects to remain thermal comfort in warm conditions of 28 ~C and 30 ~C with airflows, and the corresponding most suitable air velocity range is 0.4~0.6 m/s and 0.7~0.9 m/s, respectively. Compared with CMW, SNW can provide stronger cooling effect and better thermal comfort performance, which contributed to the consequence that over 60% subjects preferred SNW.
出处
《暖通空调》
北大核心
2014年第5期130-134,共5页
Heating Ventilating & Air Conditioning
基金
国家自然科学基金项目(编号:50838003)
中国博士后科学基金面上资助项目(编号:2013M540958
2013M530633)
关键词
动态气流
热舒适
仿自然风
分体空调
气候室实验
dynamic airflow, thermal comfort, simulated natural wind, split air conditioning, climatechamber experiment
作者简介
罗茂辉,男,1989年8月生,在读博士研究生
朱颖心(通信作者)100084清华大学建筑技术科学系(010)62782746E-mail:zhuyx@tsinghua.edu.cn