摘要
从热力学第一定律与热力学第二定律相结合的角度,分析了顶板辐射空调系统的热力学性能。通过与目前常用的室内环境控制系统在能量和能质利用率两方面的对比分析得出结论:在常用的室内环境参数条件下,顶板辐射空调末端系统比风机盘管空调末端系统节能56.2%,比地板辐射供暖末端系统节能52.2%,比散热器供暖末端系统节能67.5%。同时,顶板辐射空调末端系统的火用利用率更高,运行中既节约能"量"更节约能"质"。该系统具有极佳的热舒适性,能耗和运行费用极低,可兼顾夏季制冷和冬季供暖双工况,具有极高的性价比,是未来空调技术的主流方向。
The thermodynamic of roof radiation air-conditioning system is analyzed at the perspective of the combination between the first law of thermodynamics and the second law of thermodynamics. Comparing with present common indoor environment control system in terms of the utilization rate of quantity and quality of energy, the conclusion shows that its terminal system saves 56.2% of energy than the fan-coil air-conditioning terminal system, 52.2% than the radiant floor heating terminal system, and 67.5% than the radiator heating terminal system in the common indoor environment parameter conditions. At the same time, roof radiation air-conditioning terminal system has higher utilization rate of energy, and the fact of saving the ＂quality＂ of energy is more important than that of＂quaatity＂ in the operation process. The system is of thermal comfort excellently, meanwhile, its energy consumption and operation cost are extremely low. Not only can it lower the in- door environment temperature in summer but also heighten in winter. Therefore, it has high function-cost ratio. It＇ll be the mainstream direc- tion of air-conditioning technology in the future.
出处
《建筑节能》
CAS
2012年第11期19-22,共4页
BUILDING ENERGY EFFICIENCY
关键词
顶板辐射
末端系统
节能
性价比
火用分析
roof radiation
terminal system
energy saving
function-cost ratio
energy analysis
