摘要
目的为将低温地板供暖系统用于夏季供冷,提高设备的利用率.方法利用流体动力学PHOENICS软件建立湍流模型,分析不同负荷条件下,置换通风、地板供冷及其复合式系统的室内温度场和气流组织的分布情况.结果复合式空调系统的舒适性较好,其结露的危险也远小于单独地板辐射供冷,室内热源的散热量和位置对气流组织分布的影响较大.结论该复合式系统可适用的冷负荷范围广、舒适性较好,而且可改善地板的供冷能力、有效地预防结露.
This study aims at developing a radiant floor cooling system using the existing radiant floor heating system. Using CFD （computational fluid dynamics） software, this paper analyzes the airflow distribution under displacement ventilation, the radiant floor cooling and the hybrid system. The temperature field, velocity field and the vertical gradient are analyzed under different loads. The simulation results show that the thermal comfort of hybrid system is the best, and the risk of condensation is lower than the radiant floor cooling operating individually. The internal heat sources influence airflow distribution enormously. We can draw the conclusion that the hybrid system can be used with wide range of cooling load. It can improve the cooling capacity of radiant floor cooling and avoid condensation on the cooling floor surface.
出处
《沈阳建筑大学学报（自然科学版）》
EI
CAS
2008年第6期1066-1069,共4页
Journal of Shenyang Jianzhu University：Natural Science
基金
北京市“供热、供燃气、通风及空调工程”重点实验室项目(KF200609)
关键词
地板供冷
置换通风
热舒适
结露
radiant floor cooling
displacement system
thermal comfort
dew
作者简介
任艳莉（1970-），女，博士研究生，主要从事建筑节能及室内热舒适研究
