改进型诱导器冬季气流组织优化实验与模拟  

Optimization experiment and numerical simulation of air distribution for improved induction unit in winter

作　　者：李静凡 王志毅[1] 郑娟 LI Jingfan;WANG Zhiyi;ZHENG Juan(School of Civil Engineering and Architecture,Zhejiang Sci-Tech University,Hangzhou 310018,China;Zhejiang DunAn Electro-Mechanical Technology Co.,Ltd.,Zhuji 311835,China)

机构地区：[1]浙江理工大学建筑工程学院,杭州310018 [2]浙江盾安机电科技有限公司,浙江诸暨311835

出　　处：《浙江理工大学学报（自然科学版）》2021年第4期543-550,共8页Journal of Zhejiang Sci-Tech University(Natural Sciences)

摘　　要：为改善改进型诱导器在冬季应用时热气流不易下沉的问题,优化气流组织状况,采用计算流体动力学分析(Computational fluid dynamics,CFD)模型对冬季不同回风口位置下房间气流组织进行模拟,并通过实验验证CFD模型的可靠性,得到在两种回风方式下房间的空气分布特性指标、温度场、速度场和不同送风参数房间的温度场。对比结果发现:采用下回风方式较上回风方式房间垂直温差减小约5℃;该下回风方案能够提高改进型诱导器系统在冬季的制热效果,优化其气流组织状况,提高热舒适性。To improve the problem that hot air doesn′t sink easily when an improved induction unit is used in winter and optimize the air distribution,a computational fluid dynamics(CFD)model is introduced to simulate air distribution in the room under different return air inlet positions in winter,and the reliability of the CFD model is verified experimentally.The air diffusion performance index(ADPI),temperature field,velocity field in the room under two return air modes,and temperature fields with different air supply parameters are obtained.By comparing the results,it is found that compared with the up-return air mode,the vertical temperature difference in the down-return air mode is reduced by about 5℃.The proposed down-return air scheme can improve the heating effect of the improved induction unit in winter,optimize the air distribution and enhance thermal comfort.

关 键 词：改进型诱导器 舒适性 气流组织优化 送风参数 数值模拟 

分 类 号：TU831.3-5[建筑科学—供热、供燃气、通风及空调工程]