薄膜太阳电池生产过程中玻璃基板传热特性及变形原因研究

发布时间：2018-03-19 14:00

  本文选题：对流　切入点：辐射　出处：《太阳能学报》2015年09期 　论文类型：期刊论文

【摘要】：针对应用某型扩散炉生产薄膜太阳电池玻璃基板易变形的问题,应用经过验证的数值方法对扩散炉中玻璃基板的辐射及对流传热特性进行研究,获得玻璃基板的温升特性和受热机制。发现远离炉壁的玻璃基板两侧都以受均匀对流加热作用为主;而最靠近炉壁的玻璃基板一侧受辐射作用加热的同时另一侧受对流作用冷却,在基板内部厚度方向产生了较大温度梯度。以玻璃基板的热流分布规律为条件进行板件"热-结构"耦合的有限元应力应变模拟,发现最靠近炉壁玻璃基板翘曲变形严重且与实际生产现象相符。最后提出改进措施并进行效果验证。
[Abstract]:Aiming at the problem that the glass substrate of thin film solar cells is easily deformed by a diffusion furnace, the radiation and convection heat transfer characteristics of the glass substrate in the diffusion furnace are studied by using the verified numerical method. The temperature rise characteristics and heating mechanism of glass substrate are obtained. It is found that both sides of glass substrate far from furnace wall are mainly subjected to uniform convection heating. While one side of the glass substrate closest to the furnace wall is heated by radiation while the other side is cooled by convection, A large temperature gradient is produced in the direction of the inner thickness of the substrate. Based on the heat flux distribution of the glass substrate, the finite element stress-strain simulation of the thermal-structure coupling of the plate is carried out. It is found that the warpage of the glass substrate closest to the furnace wall is serious and in accordance with the actual production phenomenon. Finally, the improvement measures are put forward and the results are verified.
【作者单位】： 山东大学能源与动力工程学院;山东省计量科学院;
【分类号】：TM914.42
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本文编号：1634569