基于数值模拟的空调末端节能优化  

Energy-Saving Optimization of Air Conditioning Terminal Device Based on Numerical Simulation

作　　者：闫军威[1] 刘洋[1] 周璇[1] 康英姿[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2012年第4期144-149,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：粤港关键领域重点突破项目(x2jqB2100860)

摘　　要：建立了一间办公室的物理模型,利用AIRPAK3.0数值模拟软件,采用室内零方程湍流模型,对办公室在空调末端供冷条件下的室内气流组织进行了数值模拟,分析了空调末端送风温度和送风速度对于热舒适性的影响,对一天内各典型时刻的送风参数进行了优化,并将优化后的末端工况与实际末端工况进行了对比.结果表明:空调末端的节能潜力较大;相同外界条件下,与运行参数未进行优化时相比,按模拟结果对运行参数进行优化后,全天各时刻空调末端设备的理论制冷量平均减少17%.In this paper, first, a physical model of an office was built. Then, based on the indoor zero equation turbulence model, a numerical simulation of the air distribution in the modeled office with air conditioning terminal device was carried out with AIRPAK3.0. Moreover, the effects of air supply temperature and velocity on the ther- mal comfort were analyzed, and the air supply parameters at the typical moments in one day were optimized, with the results being finally compared with the actual operation data. It is found that the air conditioning terminal device is of great energy-saving potential, and that, after the optimization of operation parameters, the theoretical cooling capacity of the terminal device in one day averagely reduces by 17%.

关 键 词：计算流体动力学 中央空调 节能 热舒适性 气流组织 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程]