研究了天花板安装式喷嘴（直径为0.095 m（0.312ft））提供的个性化气流与坐姿式热假人产生的热羽流之间的相互作用，以及其对身体冷却的影响。实验在多种条件下的混合通风试验室中进行，包括室温和个性化空气温度的四种组合（23.5℃（74.3℉）/21℃（69.8℉）、23.5℃（74.3℉）/23.5℃（74.3℉）、26℃（78.8℉）/23.5℃（74.3℉）、26℃（78.8℉）/26℃（78.8℉），个性化空气的四个气流速率（4（8.48）、8（16.95）、12（25.43）、16（33.91）L/s（cfm））以及将假人直接放置在喷嘴下方（假人头部顶部和喷嘴之间的距离为1.3m（4.265ft））。通过移动人体模型0，研究了身体对个性化流动的不对称暴露。 向前、向后和侧向各2米（0.656英尺）。在23.5°C（74.3°F）/23.5°C（74.3°F）的情况下，在假人头部上方0.2米（0.656英尺）处可以清楚地观察到未加热假人对个性化气流分布的堵塞效应，在所有个性化气流速率下，中心线速度降低到约85%。中性水平Xnl是指从观察到热羽流对个性化气流速度分布影响的喷嘴到喷嘴的距离，随着气流速率的增加，中性水平Xnl从0.8m（2.625ft）增加到1.1m（3.609ft）。在16L/s（33.91cfm）以上，个性化气流能够完全破坏热羽流。与没有个性化气流的参考情况相比，基于人体模型的头部等效温度随着气流速度的增加而降低- 在23.5摄氏度（74.3华氏度）/21摄氏度（69.8华氏度）的情况下1摄氏度（-1.8华氏度）到-6摄氏度（-10.8华氏度），在26摄氏度（78.8华氏度）/26摄氏度（78.8华氏度）的情况下从-0.5摄氏度（-0.9华氏度）到-4摄氏度（-7.2华氏度），这是所研究的四种情况中的两种极端情况。当人体模型向前移动时，个性化气流对身体的冷却效率最低。单位:双引文:ASHRAE交易，第115卷，第。2、路易斯维尔2009

The interaction of the personalized airflow supplied from ceiling mounted nozzle (diameter of 0.095 m (0.312ft)) with the thermal plume generated by a seated thermal manikin with the body size of an average Scandinavian woman and its impact on the body cooling was studied. Experiments were performed in a test room with mixing ventilation at numerous conditions comprising four combinations of room air temperature and personalized air temperature (23.5°C (74.3°F) / 21°C (69.8°F), 23.5°C (74.3°F) / 23.5°C (74.3°F), 26°C (78.8°F) / 23.5°C (74.3°F), 26°C (78.8°F) / 26°C (78.8°F)), four airflow rates of the personalized air (4 (8.48), 8 (16.95), 12 (25.43), 16 (33.91) L/s (cfm)) and positioning of the manikin directly below the nozzle (1.3m (4.265ft) distance between the top of manikin’s head and the nozzle). The asymmetric exposure of the body to the personalized flow was studied by moving the manikin 0.2m (0.656ft) forward, backward and sideward. The blockage effect of the unheated manikin on the personalized airflow distribution, studied at the case 23.5°C (74.3°F)/23.5°C (74.3°F), was clearly observed 0.2m (0.656ft) above the top of manikin’s head where the centerline velocity was reduced to about 85% under all personalized airflow rates. The neutral level, Xnl, defined as the distance from the nozzle where the impact of the thermal plume on the velocity distribution in the personalized airflow was observed, increased from 0.8m (2.625ft) to 1.1m (3.609ft) with the increase of the airflow rate. Above 16L/s (33.91cfm) the personalized airflow was able to completely destroy the thermal plume. In comparison with the reference case without personalized airflow, the manikin based equivalent temperature for the head decreased with the increase of the airflow rate from -1°C (-1.8°F) to -6°C (-10.8°F) under 23.5°C (74.3°F)/21°C (69.8°F) case and from -0.5°C (-0.9°F) to -4°C (-7.2°F) under 26°C (78.8°F)/26°C (78.8°F) case, which are the two extreme cases among the four cases studied. The personalized airflow was least efficient to cool the body when the manikin was moved forward.Units: Dual