太阳能地板辐射采暖系统工况特性研究

发布时间：2018-10-25 14:40

【摘要】：面对日益紧张的能源消耗与能源供应间的矛盾、能源消耗与环境污染间的矛盾,开发利用可再生能源成为解决以上矛盾最有效的方法。将太阳能热利用技术与地板辐射采暖技术有机结合满足采暖需求,对于实现建筑节能减排目标、改善能源结构、节约常规化石能源、保护自然环境、减缓气候变化等,具有极其重大的意义。 通过分析国内外此领域研究状况,可知目前太阳能地板辐射采暖尚存在以下问题：(1)针对银川地区的气象条件,太阳能地板辐射采暖系统的可行性和运行状况缺乏研究；(2)在太阳能地板辐射采暖系统中工况运行参数方面的研究未见报道：(3)太阳能地板辐射采暖系统的独立储热工况特性、独立放热工况特性和储放热复合运行时的工况特性未见报道；(4)针对银川地区的气象条件,太阳能采暖系统不同辅助能源工况运行系统的经济性和节能性分析,缺乏一个确切的分析过程和计算结果。 本文介绍针对宁夏银川地区搭建太阳能地板辐射采暖系统,通过实验研究了太阳能地板辐射采暖系统得出了以下结论： (1)在宁夏银川地区太阳能地板辐射采暖系统配一定的辅助能源能够满足冬季采暖需求,并且系统运行良好； (2)通过实验得出本采暖系统流量为25L/min这一工况参数下工作,整个采暖系统的运行效果较好：经过实验结果对比分析,水箱供水温度在50℃左右,采暖系统可满足采暖要求； (3)太阳能采暖系统采用蓄热循环系统和放热循环系统复合运行时,室内温度达到了20℃,满足了室内采暖要求； (4)根据采暖期不同月份太阳辐照度不同,对系统提供的能量不同。在12月份太阳能保证率为43.1%,1月份太阳能保证率为47.9%,2月份太阳能保证率为49.1%,3月份太阳能保证率为51.9%； (5)太阳能采暖系统不同辅助能源工况运行的节能效益和环保效益明显,运行期间减少了二氧化碳排放量,减缓了全球变暖的进程； (6)太阳能和辅助电加热这一运行工况,根据系统运行工况的分析本系统可大约运行8.4年可将成本收回。
[Abstract]:In the face of the contradiction between energy consumption and energy supply, between energy consumption and environmental pollution, the development and utilization of renewable energy has become the most effective way to solve the above contradiction. The combination of solar energy utilization technology and floor radiation heating technology to meet the heating demand can achieve the goal of energy saving and emission reduction, improve the energy structure, save the conventional fossil energy, protect the natural environment, and mitigate the climate change, etc. Of great significance. By analyzing the research situation in this field at home and abroad, we know that there are still some problems in solar floor radiation heating: (1) the feasibility and operation of solar floor radiant heating system are not studied according to the meteorological conditions in Yinchuan area; (2) the research on the operating parameters of solar floor radiant heating system has not been reported: (3) the characteristics of solar floor radiant heating system under independent heat storage conditions, The characteristics of independent heat release and heat storage combined operation are not reported. (4) according to the meteorological conditions in Yinchuan area, the economic and energy saving of solar heating system under different auxiliary energy conditions are analyzed. Lack of a precise analysis process and calculation results. This paper introduces the solar floor radiant heating system in Yinchuan area of Ningxia. The conclusions are as follows: (1) the solar floor radiant heating system in Yinchuan area of Ningxia can meet the needs of winter heating with a certain amount of auxiliary energy. And the system runs well; (2) through the experiment, the flow rate of the heating system is 25L/min, the operation effect of the whole heating system is good: through the comparison and analysis of the experimental results, the water supply temperature of the water tank is about 50 鈩，

本文编号：2293993