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【摘要】 实验研究了水平射流桌面式工位空调的送风特性及其影响因素。研究结果表明,风口高度位置存在吹风风险。要保证人员的热舒适性,必须合理设计送风参数,选择合适的风口尺寸和送风距离。对于圆形送风口,保证新风量同时不产生冷吹风感的风口直径应不小于12cm,送风距离以50～80cm为宜;增大送风百叶的夹角,能在垂直方向有效分散送风,但夹角过大,不利于新风的有效利用。 【Abstract】 The air supply characteristics of a desktop task conditioning system with the horizontal jets and their influencing factors are studied experimentally.The results show that there is a draught risk at the height of air supply opening.In order to ensure the thermal comfort,the air supply parameters should be selected reasonably,as well as the opening size and the distance of air supply.For the round air supply outlet the diameter should not be less than 12cm and the appropriate air supply distance is about 50 to 80 centimeter.The draught risk can be reduced by increasing the angle between the air supply louvres,but the fresh air can not be effectively used when the angle is too large. 【关键词】 工位空调; 水平射流; 吹风感 【Key words】 Task air conditioning; Level jet; Draught sensation