摘要
辐射供冷是一种舒适、节能的新型空调形式。为了比较相同面积顶板、地板和墙壁三种不同辐射供冷方式与置换通风相结合系统的室内热环境情况,建立供冷系统室内数值模型并运用DTRM辐射模型进行不同供冷情况的数值模拟。对室内垂直温差、吹风感、PMV-PPD指标及能量利用效率进行分析比较,发现在统一设置参数下顶板辐射供冷系统热舒适指标最为理想,地板辐射供冷系统最差;但是地板辐射供冷系统能量效率最高。计算为合理优化各不同系统提供了一定的理论依据。
Radiant cooling is a new form of air-conditioning featured by being comfortable and energy-saving.In order to compare the indoor thermal environmental status under the combination of displacement ventilation and radiant cooling variables which include ceiling,floor and wall,this thesis aims to establish an indoor numerical model for cooling system,and to conduct different cooling numerical simulations with the help of DTRM radiant model.The comparison of indoor vertical temperature difference,blowing sense,PMV-PPD index and energy use efficiency shows that under the same parameters,ceiling radiant cooling system holds the best thermal comfort index,while radiant floor cooling system,which holds the poorest thermal comfort index,is the most efficient in terms of energy use.The calculation in the thesis provides certain theoretical proof to the reasonable optimization of different systems.
出处
《建筑热能通风空调》
2010年第3期53-56,共4页
Building Energy & Environment
关键词
辐射供冷
置换通风
热环境
热舒适
radiant cooling
displacement ventilation
thermal environment
thermal comfort
