辐射吊顶与置换通风复合系统夏季运行策略的探讨  

Discussion on Operation Strategy of a Combined Radiant Ceiling and Displacement Ventilation System in Summer

作　　者：刘畅[1] 张旭[1] 唐凯[1] 

机构地区：[1]同济大学,上海200091

出　　处：《流体机械》2011年第5期74-77,共4页Fluid Machinery

基　　金："十一五"国家科技支撑项目:长江流域住宅建筑热湿控制技术研究与示范(2006BAJ01A05)

摘　　要：辐射吊顶与置换通风复合系统夏季运行时,辐射吊顶表面的结露与系统大惯性导致的温度响应速度慢是两个最重要的不利因素。本文针对这两点不利因素,寻找最佳的运行策略,并在上海某别墅进行现场测试研究,通过对实测数据的分析,探讨运行策略的可行性。结果表明,该策略可以有效地避免辐射板表面结露,而降温速度与室内送风参数密切相关;实际运行时应根据实际情况判断运行策略中各阶段的转换条件。该策略可以为辐射吊顶与置换通风复合系统的推广应用提供运行指导。For the operation of combined radiant ceiling and displacement ventilation system in summer, the condensation on the surface of radiant ceiling and the slow response of temperature caused by the system＇ s big inertia are two key negative factors. Aiming at the two negative factors, the best operation strategy was searched after in this paper, and the field experiments was done in a villa project in shanghai. By analysis on the measured data, the feasibility of operation strategy was discussed. The results show that the strategy can avoid condensation on the surface of radiant ceiling effectively, and the temperature decreasing rate is closely related the parameters of the supply air. In addition, the switching node of stages should be judged according to practical situation. In conclusion, the strategy may be guidance of applying the combined radiant ceiling and displacement ventilation system.

关 键 词：辐射吊顶 置换通风 运行策略 结露 大惯性 

分 类 号：TB657.2[一般工业技术—制冷工程] TU831.3[建筑科学—供热、供燃气、通风及空调工程]