特朗伯墙式空腔建筑体系的传热模型和数值模拟

(1.扬州大学 水利与能源动力工程学院,江苏 扬州 225127; 2.扬州大学 建筑科学与工程学院,江苏 扬州 225127)

特朗伯墙; 空腔建筑; 地板采暖; 太阳能; 传热

Heat transfer model and mathematics simulation of Trombe Wall to cavity construction system
LIU Yi1,CHEN Xing2,WANG Xinyu1

(1.School of Hydraulic,Energy and Power Engineering,Yangzhou University,Jiangsu Yangzhou 225127,China; 2.Collegel of Civil Science and Engineering,Yangzhou University,Jiangsu Yangzhou 225127,China)

Trombe Wall; cavity construction; floorheating; solar energy; heat transfer

DOI: 10.15986j.1006-7930.2018.06.019

备注

将特朗伯墙应用于空腔建筑体系,利用太阳能蓄热墙体对玻璃与墙体之间的空气夹层进行加热,热气流上升通过空心楼板,对上层房间进行采暖.建立了此类建筑的传热模型,并对此类建筑进行了数值模拟分析,分析结果表明:空气夹层内热气流分布情况对房间的加热效果和室内的温度分布起到至关重要的影响,较之连通型特朗伯墙式空腔建筑体系,分隔型特朗伯墙式空腔建筑体系气流组织更合理,对建筑体系加热更均衡,因而对楼层较高的建筑具有更好的适用性.

Trombe wall is applied in cavity construction system to heat the air in the gap between the glass and the solar thermal storage wall. The updraft in the gap is led to pass through hollow floor and to supply heat to upper room. Heat transfer model is built and numerical simulation of this kind of buildings is done. The results show that the distribution of thermal airflow in air gaps plays a decisive role in heating effect and indoor temperature distribution. In comparison with the cavity construction system with connected trombe walls, the cavity construction system with disconnnected trombe walls has an appropriate airflow distribution and a uniform heating effect, which has better serviceability for high-rise buildings.