新型蓄热体结构参数对换热比表面积的影响

Effects of configuration parameter of new thermal storage on specific surface area of heat transfer

针对常用的陶瓷蓄热小球流动阻力大、蜂窝陶瓷蓄热体平行独立直通道间气流分布不均匀的缺点,提出一种前后、上下、左右通孔垂直相交贯通的新型蓄热体结构,并分析通孔结构、通孔尺寸对蓄热体换热比表面的影响规律。分析结果表明,通过调整新型蓄热体的通孔结构与尺寸能够达到常规蓄热体换热比表面积的要求。

In light of the shortcomings of the big flow resistance of the globule in the ceramic thermal storage and non-uniform airflow distribution in the independent parallel straight interchannel of the ceramic honeycomb heat storage a new thermal storage structure is designed. In the newly designed device the front and back, up and down, left and right channels are all vertically intersected. The effects of the channel structure and size on the specific surface area of the thermal storage are analyzed. Results show that the requirements of the conventional thermal storage for the heat exchange specific surface area can be met by readjusting the channel structure and size of the new type thermal storage.