【摘要】 提出了一种新型地板辐射供冷暖系统,通过综合利用墙体和地板的导热,仅将金属管路布置在踢脚线内,并采取强化传热措施,即可满足室内供能需求。建立了该系统的理论模型,并用有限元方法对其传热性能进行了数值模拟。研究结果表明:该系统供能效果良好,冬季采用40℃C供暖介质便能满足保温的节能后居住建筑的供冷暖需求,夏季用10℃制冷介质即可满足该房间的制冷需求;地板辐射面提供热量约占60%;系统供能能力受埋管管径、介质温度及强化传热的材料等因素的影响,其中介质温度的影响最为明显。更多还原

【Abstract】 This paper describes a new design of radiation floor supplying cooling and heating system that can supply the building heating and ceoling energy through the heat conduction of both wall and floor by the metal tube buried in the junction of floor and wall,with high heat transfer coefticient material around.The theoretical model of the system heat transfer was established and the heat transfer process was simulated by the finite element analysis method.The analysis results show that the cooling and heating system has good performance in energy supply and the high-grade heat or cold source is not necessary in this system.It can meet the cooling and heating energy need of energy saving heat preservation buildings with 40℃heating medium in winter and with 10℃cooling medium in summer.The heat transferred through the floor occupied 60%of the total in summer.The performance of the system mainly depends on the diameter of the buried tube,medium’s temperature and materials to enhance heat conduction.更多还原