【作者】 王远锋；

【导师】 高立新；

【作者基本信息】 哈尔滨工业大学 ， 供热、供燃气、通风与空调工程， 2009， 硕士

【摘要】 随着经济和生产的高速发展以及人们生活水平的提高,人们所面临的能源和环境压力也越来越大。太阳能是最重要的可再生能源之一,具有清洁、丰富和分布广泛等优点。太阳墙系统是太阳能空气加热技术与建筑一体化的有效结合,充分利用了太阳能和室外新鲜空气来为室内提供热量和足够的新风,为太阳能热利用提供了一种新的途径。本课题主要从实验和理论分析两个方面对无盖板渗透型太阳能空气集热器(太阳墙)在实际建筑应用中的热性能进行研究。文中介绍了太阳墙系统热性能实验台的搭建过程以及实验过程中所需要的试验仪表。通过实验,对太阳墙系统各部分温度在闷晒和抽吸工况下进行了分析。研究发现集热板内表面温度要高于外表面温度,并且这个温差随着系统运行风量的加大而逐渐减小。通过实验数据,分析了一些动态参数对太阳墙系统热性能的影响。发现在室外空气温度和太阳辐射强度都变化不大的时段里,太阳墙系统在高档风量运行下集热效率更高,而在低档风量运行下集热效率较低。分析了安装太阳墙系统后,对建筑外墙体的影响以及太阳墙集热板表面温度分布问题。理论分析了太阳墙系统热损失问题,并得建立了太阳墙板能量平衡方程。根据理论模型,通过数值计算分析了太阳辐射强度、室外风速、表面抽吸速率、室外空气温度以及集热板的吸收率、发射率等对太阳墙系统热性能的影响。更多还原

【Abstract】 With the rapid development of the economy and production, and the improvement of people’s living standards, the energy and environmental pressure which people are facing is increasing. Solar energy is one of the most important renewable energy sources with clean, abundant and widely distributed and so on. Solar wall system is effective integration of solar air heating technology and building integration, which makes full use of solar energy and fresh outdoor air to provide heat and sufficient fresh air for the indoor. Solar wall system provides a new way of heat utilization of the solar.The paper investigate the thermal performance of unglazed transpired solar air collector (solar wall) applying in the actual building by experimental research and theoretical analysis. The paper presents the construction of the experimental platform of the thermal performance of solar wall system, and the structures needed in the experiment. Through the experiment, temperature of every part of solar wall system is analyzed both in drying and suction conditions. By studying, find that the inner surface temperature of the absorber is higher than the outer surface temperature, and the temperature difference gradually reduce with the increase of the operation air volume. Through the experimental data, analysis of the effect on the thermal performance of the solar wall system by a number of dynamic parameters is done. During the period when the outdoor air temperature and solar radiation intensity have changed little, the heat collecting efficiency of the solar wall system is higher in the high operation air volume and is lower in the low operation air volume. Analysis of the effect on the out wall after the solar wall system is installed as well as the surface temperature distribution of the solar collector plate.The problem of heat loss of the solar wall system is analyzed theoretically and the energy balance equation of the solar wall is set up. According to theoretical models, analysis of the effect on the thermal performance of the solar wall system by solar radiation intensity, outdoor wind speed, superficial suction velocity, outdoor air temperature and solar absorptance of the collector, thermal emissivity of the absorber is done.更多还原