等温工况下分体空调送风动态化与人体热舒适实验研究
Application of dynamic airflow on split air conditioning unit and its impacts on human thermal comfort: isothermal condition
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0.4～0.6 m/s和0.7～0.9 m/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。
Abstract：
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 ℃ and 30 ℃ 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.
Keywords:dynamic airflow, thermal comfort, simulated natural wind, split air conditioning, climate chamber experiment