贴附射流作用下辐射冷顶板加置换通风空调系统评价分析  

Evaluation Analysis of Radiant Cooling Top Plate and Displacement Ventilation Combined Air-conditioning System under the Action of Wall Attached Jet

作　　者：钱佳炜 李念平[1] 苏林[1] 张絮涵[1] 孙烨瑶 

机构地区：[1]湖南大学土木工程学院,长沙410082

出　　处：《建筑科学》2015年第6期86-89,共4页Building Science

基　　金：国家自然科学基金项目"辐射冷顶板的非稳态热力学特征及人体热舒适响应机理分析与实验研究"(51178169)

摘　　要：通过对辐射冷顶板与置换通风复合空调系统以及辐射冷顶板与贴附射流复合空调系统的评价分析,提出将三者结合起来的新型空调系统。建立贴附射流作用下辐射冷顶板与置换通风复合空调系统房间的模型,利用Fluent软件对该房间进行模拟。通过模拟分析,得出房间的温度分布情况以及气流分布情况。模拟结果表明:贴附射流作用下辐射冷顶板加置换通风空调系统在保证房间良好舒适性的同时,可以有效减轻顶板结露问题,使辐射冷顶板在理想的工作温度下运行,提高了辐射冷顶板的供冷能力,保证了房间良好的热环境。Based on the analysis of the radiant cooling top plate and displacement ventilation combined airconditioning system,as well as the radiant cooling top plate and wall attached jet combined air-conditioning system,the paper proposes a new-type air-conditioning system with double fresh air systems, namely, displacement ventilation and wall attached jet,that incorporates a wall attached jet system into the radiant cooling top plate and displacement ventilation combined air-conditioning system. Regarding this new air-conditioning system,a room model with radiant cooling top plate and displacement ventilation combined air-conditioning system under the action of wall attached jet is built. Software Fluent is used to simulate the room. The simulation outputs the room temperature distribution and air flow distribution. The simulation results indicate that the new air-conditioning system can ensure satisfactory comfort in the room,and effectively reduce the top plate condensation,so that the radiant cooling top plate can operate under the ideal temperature. The cooling ability of the radiant cooling top plate is enhanced. And a good thermal environment in the room is guaranteed.

关 键 词：辐射冷顶板 置换通风 贴附射流 模拟 结露 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程] TU834.31