主动式冷梁内部喷嘴间距变化对其性能的影响  

Influence of Internal Nozzle Pitch Changes on the Active Chilled Beam's Performance

作　　者：王金鑫[1] 王瑾[1] 柳建华 牛臻[1] 吴极[1] 黄军徽 康胜旺 

机构地区：[1]上海理工大学环境与建筑学院,上海200093 [2]上海市动力工程多相流动与传热重点实验室,上海200093 [3]中国海诚工程科技股份有限公司,上海200031 [4]特灵空调系统(中国)有限公司,江苏苏州215413

出　　处：《建筑节能》2015年第12期15-19,共5页BUILDING ENERGY EFFICIENCY

基　　金：沪江基金(D14003)

摘　　要：主动式冷梁作为一种新的空调末端装置,对房间的温湿度与气流组织起重要作用,通过改变冷梁内部喷嘴间距,以诱导比、噪声标准、空气分布特性指标作为评价指标对冷梁内部喷嘴间距变化引起的冷梁流体输送性能的影响及经济性变化进行了评价分析,结果表明:喷嘴间距超过48 mm后,冷梁诱导比增幅明显收窄,且噪声超过标准限值;喷嘴间距从36 mm增加到48 mm,满足房间舒适性所需功率节约百分比为3.5%,喷嘴间距超过48 mm后,所需功率反而略有上升。As a new air-conditioning terminal device, the active chilled beam plays an important role in the indoor temperature, humidity and air distribution. By changing the internal nozzle pitch, the fluid transport performance and the energy savings of chilled beam were analyzed by theoretical calculations and numerical simulations, and evaluated by induction ratio, noise standards and air distribution performance index （ADPI）. The results show that, when the nozzle pitch exceeds 48mm, the induction ratio increase of chilled beams narrowed significantly, and the noise exceeds the standard limit; when the nozzle pitch is from 36mm to 48mm, the power that meet the room exceeds 48ram, the required power slightly increased. comfort needed saves 3.5%; when the nozzle pitch

关 键 词：冷梁 诱导比 数值模拟 喷嘴间距 噪声 ADPI指标 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]