不同送风形式对室内热环境的影响  

Influence of different air supply modes on indoor thermal environment

作　　者：楚广明[1] 李洋 周港 徐童童 CHU Guangming;LI Yang;ZHOU Gang;XU Tongtong(School of Thermal Engineering,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东建筑大学热能工程学院,山东济南250101

出　　处：《山东建筑大学学报》2023年第1期47-54,62,共9页Journal of Shandong Jianzhu University

摘　　要：气流组织形式不仅能决定房间内的空气品质,还改变了人体的热舒适性,影响了人们健康和工作效率,合理的气流组织形式是空调系统设计中不可忽视的一部分。文章通过Airpak软件模拟了不同送风口位置下两种送风方式的办公室热环境,研究了不同送风方式在最佳送风位置时对室内热舒适性的影响。选取人坐姿和站姿时的呼吸平面1.2和1.7 m为典型截面,模拟对比分析室内温度场、速度场、PMV-PPD指标。结果表明:两种送风方式在最佳位置送风均能够满足舒适度要求;采用上送上回的送风形式,且送风口布置在房间中部为最佳;采用侧送上回的送风形式,其送风口布置在距墙3.5 m处为最佳。The air distribution form can not only determine the air quality in the room,but also has a great impact on the thermal comfort of the human body,which affects people s health and work efficiency.The selection of a reasonable air distribution form is a non-negligible part of the air conditioning system design.In this paper,Airpak software is used to simulate the influence of different air outlet positions on the thermal environment of office under two air supply modes,and the influence of two air supply modes on the indoor thermal comfort at the optimal air supply position is studied.The indoor temperature field,velocity field and PMV-PPD index are simulated and compared by taking 1.2 m and 1.7 m breathing planes of sitting and standing postures as typical sections.The results show that the two air supply modes can meet the comfort requirements in the best position.The mode of upper supply and upper return air supply with the air supply outlet arranged in the middle of the room works best.The mode of side supply and upper return with the air supply outlet arranged 3.5 m away from the wall works best.

关 键 词：送风形式 空气品质 热舒适性 AIRPAK 

分 类 号：TK-9[动力工程及工程热物理]