不同建筑分层空调系统风口布置的优化研究  

Diffuser layout optimization of stratified air distribution system in different types of buildings

作　　者：程远达[1] 杨晋明[1] 张兴惠[1] 杜震宇[1] Cheng Yuanda;Yong Jinming;Zhong Xinghui;Du Zhenyu(Taiyuan University of Technology, Taiyuan, Chin)

机构地区：[1]太原理工大学

出　　处：《暖通空调》2018年第4期100-107,共8页Heating Ventilating & Air Conditioning

基　　金：国家自然科学基金资助项目"不同室内气流组织下非晶硅半透明光伏窗的传热特性及其对空调负荷影响的研究"(编号:51408391);山西省应用基础研究项目"基于辐射对流耦合高效换热的节能新型数据中心机房空调系统研究"(编号:201601D021088);山西省回国留学人员科研资助项目"双层玻璃光伏外窗与室内气流组织耦合传热特性及其对建筑空调负荷影响的研究"(编号:2015-041)

摘　　要：通过实验数据验证数学模型后,模拟研究了分层空调系统应用于不同类型建筑空间时风口布置对环境热舒适性和系统节能潜力的影响。结果表明:当分层空调系统应用于小型建筑空间时,需要注意回风口的诱导作用对室内气流组织的影响,避免形成"冷量短路"现象而引起热舒适问题;当分层空调系统应用于水平跨度较大的高大建筑空间时,应尽可能将送风口围绕人体活动区域均匀布置,以提高建筑下部空间气流组织的均匀性和环境热舒适性;将回风口布置在人体活动区域温度较低的位置,能够有效减小分层空调系统的制冷机组负荷;同时,增强室内空气沿外围护结构的贴附热羽流流动,也有利于提高系统的节能潜力。With a validated simulation model, investigates the influence of diffuser layout on the thermal comfort and energy saving potential of stratified air distribution （STRAD） systems applied to different types of building spaces. The results indicate that for small buildings, the induction effect of the return air inlets on the indoor air distribution should be noticed to avoid the thermal comfort problems caused by ＂short circuit＂ phenomenon of the cold air. But for large space buildings with wide horizontal span, air supply diffusers should be arranged surrounding the occupied zone as uniform as possible, so as to improve the uniformity of the indoor air distribution and the thermal comfort in the lower zone. The return air inlets should be designed to the low air temperature area of lower occupied zone, in order to reduce the cooling load and improve the energy saving capacity of the STRAD systems. Furthermore, the enhancement of the thermal plume flow along with exterior walls is beneficial for further energy conservation of the STRAD systems.

关 键 词：分层空调 建筑空间 风口布置 热舒适 冷负荷 节能 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]