太陽能采暖建筑圍護(hù)結(jié)構(gòu)蓄熱調(diào)溫機理及優(yōu)化設(shè)計
[Abstract]:With the continuous growth of the world population and the improvement of people's living standard, the consumption of building energy is increasing day by day, and the application of renewable energy in building heating has been paid more and more attention. Using solar energy resources to solve the winter heating problem of residential buildings is an important measure to promote the sustainable development of buildings. However, because of the instability of solar radiation, the use of solar energy in building heating is severely restricted. Therefore, it is important for the popularization of solar heating buildings to optimize the heat storage performance of building enclosure structure and improve the stability of indoor thermal environment. According to the characteristics of indoor thermal environment of passive solar heating building, combined with typical building physical model and coupled mathematical model of two-wave thermal disturbance, this paper passes field test, theoretical analysis, experimental verification and numerical simulation. In this paper, the thermal parameters of the thermal storage structure which affect the stability of indoor thermal environment of solar heating building are analyzed and studied in detail. The conclusions are as follows: (1) through the field test, It is found that the area of Zhongwei and Lhasa is rich in solar energy resources and has the advantage of developing passive solar buildings. However, the indoor temperature of rural buildings is low and fluctuating in winter, so it is necessary to strengthen the design of heat collection and storage. At the same time, according to the analysis of the test results, the operating temperature is proposed as the evaluation index of the indoor thermal environment of solar heating building. (2) the double wave coupled thermal disturbance mathematical model is proposed to calculate the inner surface temperature of the enclosure structure. The internal and external boundary conditions, the heat transfer characteristics, the heat transfer process and the superposition of the double wave heat disturbance on the inner wall are systematically analyzed and calculated in detail. At the same time, the reliability and accuracy of the mathematical model are verified by the experimental results. Through the above analysis, the mechanism of heat storage and temperature regulation of the outer enclosure of solar heating building is clarified. It provides a theoretical basis for the optimization of thermal storage performance. (3) through the analysis of the influence of the structure of the outer enclosure structure and the thermal physical parameters of the material on the indoor thermal environment of solar heating building under the coupling of the two sides of heat disturbance in the room and the outside, the influence of the external structure on the thermal environment of the solar heating building is analyzed. According to the principle of maximum peak time difference of temperature wave and maximum difference of peak and valley time between air temperature and wall temperature, as well as the maximum difference between them, this paper puts forward the principle of optimizing the heat storage performance of the outer enclosure structure of solar heating building. The optimal thermal parameters are obtained. (4) the heat storage and temperature regulation mechanism of the inner envelope structure is analyzed systematically, and the thermal storage performance of the inner enclosure structure is optimized by numerical simulation. The optimum thermal parameters of the inner enclosure are obtained. (5) the multi-area building physical model of "dividing the north and south rooms" is established, and the heat storage performance parameters of the inner and outer enclosure are analyzed as a whole. Furthermore, the proposed thermal parameters of the envelope structure are verified to be scientific. Through the systematic analysis and research on the heat storage performance of the solar heating building envelope, this paper hopes to explore the mechanism of the heat storage and temperature regulation of the envelope structure, and to provide a reference for improving the indoor thermal environment stability of the passive solar heating building. We will promote the improvement and sustainable development of human settlements in areas rich in solar energy.
【學(xué)位授予單位】:西安理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TU111.4
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