本文選題：光伏玻璃　切入點：壓延成型　出處：《河南工業(yè)大學(xué)》2015年碩士論文

【摘要】：近年來太陽能光伏產(chǎn)業(yè)發(fā)展迅猛,而作為太陽能電池組件中一個重要新型配套產(chǎn)品—光伏玻璃,也隨著光伏行業(yè)的發(fā)展而壯大。由于對玻璃成型的研究起步較晚,成型過程中玻璃傳熱情況比較復(fù)雜,對其進行解析求解很困難。所以,借助有限元方法來模擬玻璃壓延成型的過程,研究玻璃壓延成型時玻璃溫度的變化規(guī)律以及玻璃的微觀組織變化,為玻璃壓延成型工藝的深入研究提供依據(jù),并且對提高玻璃的生產(chǎn)效率和產(chǎn)品質(zhì)量有重要的現(xiàn)實意義。本文對玻璃壓延成型過程進行了數(shù)值模擬和實驗研究。本文首先介紹了玻璃材料的物理性質(zhì),以及應(yīng)用到玻璃壓延成型數(shù)值模擬中的基本理論和方法;分析了玻璃成型過程中的傳熱學(xué)問題;考慮了光伏玻璃壓延成型過程中溫度對各物理參數(shù)的影響,對玻璃成型中的一些邊界條件做了必要的假設(shè),在此基礎(chǔ)上建立了玻璃壓延成型段的簡化模型;以DEFORM-3D軟件為基礎(chǔ),將玻璃成型段的有關(guān)數(shù)據(jù)設(shè)置到相應(yīng)的邊界條件中,模擬得出玻璃壓延成型過程中玻璃的溫度場、速度場的分布情況以及熱通量變化對玻璃成型的影響,得出壓延成型過程中玻璃的溫度變化規(guī)律。其次,以晶粒的成核理論和玻璃析晶的范圍為基礎(chǔ),使用晶粒模塊對成型過程中玻璃的微觀組織變化過程進行模擬,分析了冷卻速度對玻璃結(jié)晶的影響。利用此方法可以很好地實現(xiàn)玻璃微觀組織演變的可視化,對玻璃內(nèi)部具體結(jié)構(gòu)的進一步研究有重要的指導(dǎo)意義。最后,用檢測工具對成型過程中的玻璃帶表面溫度進行檢測,對模擬結(jié)果進行實驗驗證,從而驗證模擬傳熱分析的正確合理性。
[Abstract]:In recent years, the solar photovoltaic industry has developed rapidly, and as an important new type of supporting product of solar cell modules, photovoltaic glass has also grown with the development of photovoltaic industry. The heat transfer of glass during forming is very complicated, so it is very difficult to solve it analytically. Therefore, the process of calendering and forming of glass is simulated by means of finite element method. The change of glass temperature and the microstructure of glass during calendering molding are studied, which provides the basis for the further study of the Calendering process of glass. It has important practical significance to improve the production efficiency and product quality of glass. In this paper, the calendering process of glass is numerically simulated and experimentally studied. Firstly, the physical properties of glass materials are introduced. The basic theories and methods applied to the numerical simulation of glass calender forming are also presented. The heat transfer problems in the process of glass forming are analyzed, and the effect of temperature on the physical parameters of photovoltaic glass during calendering molding is considered. Based on the necessary assumptions of some boundary conditions in glass forming, the simplified model of glass calendering section is established, and the relevant data of glass forming section are set up in the corresponding boundary conditions based on DEFORM-3D software. The temperature field, the distribution of velocity field and the influence of heat flux change on the glass forming process are obtained by simulation, and the temperature change law of the glass during the calendering process is obtained. Based on the nucleation theory of grain and the range of glass crystallization, the process of microstructure change of glass during forming process was simulated by using grain module. The effect of cooling rate on glass crystallization is analyzed. The visualization of glass microstructure evolution can be realized by using this method, and it is of great significance to further study the specific structure of glass. The surface temperature of the glass strip in the molding process was measured by means of testing tools, and the simulation results were verified by experiments to verify the correctness and reasonableness of the simulated heat transfer analysis.
【學(xué)位授予單位】：河南工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TQ171.633

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