一种新型的瓷-铝复合太阳能板

A novel porcelain-aluminum composite solar plate

研发了一种新型高效的瓷-铝复合太阳能板,由铝合金基体板、导流汇集管和纳米结构吸热涂层等组成。铝合金基体板为循环管与曲翅板集成化一体结构,采用6063耐蚀铝合金通过型材挤出机一次挤制成型;循环管和导流汇集管内壁涂覆厌水涂层,防止管道吸附水垢,增强耐蚀性能;将黑瓷粉、消光剂和树脂结合剂等原料粉末合成纳米黑瓷复合粉料,通过静电喷涂和高温固化工艺制成纳米结构吸热涂层,阳光吸收率高达0.96。实验结果表明,纳米结构吸热涂层热稳定性好,阳光长期照射下不会导致吸热涂层剥落;集成化结构的瓷-铝复合太阳能板导热性能优良,导热效率高达0.98;瓷-铝复合太阳能集热器的热效率约为43.6%,高于传统的太阳能集热器,制造成本比传统太阳能集热器平均低约14%。瓷-铝复合太阳能集热器在成本、寿命和效率方面更具优势,可用于建造大面积太阳能集热系统,能够满足当前太阳能产业发展的需要,具有良好的经济和社会效益,推广应用前景广阔。

Herein,a novel type of high efficiency porcelain-aluminum composite solar plate(PACP)was developed,which comprised aluminum alloy matrix plates,flow guide collecting tubes and nanostructure endothermic coatings.The aluminum alloy matrix plate was an integrated structure of circulating pipes and curved fin plates and manufactured through a one-step extrusion process using corrosion-resistant 6063 aluminum alloy.The inner walls of the circulating pipes and diversion collecting pipes were protected by spraying superhydrophobic coating layers.The nanoblack porcelain composite powder was synthesized using black porcelain powders,matting agents,and resin binders.The nanostructure endothermic coating was prepared via electrostatic spraying and a high-temperature curing process.The solar absorptance was up to 0.96.The experimental results showed that the nanostructure endothermic coatings exhibited good thermal stability and would not peel off under long-term adverse environmental conditions.The porcelain-aluminum composite solar plates with an integrated structure exhibited excellent thermal conductivity,and the thermal conductivity efficiency was as high as 0.98.The thermal efficiency of the proposed porcelain-aluminum composite solar collector was approximately 43.6%,which was higher than that of traditional solar collectors,and the manufacturing cost was approximately 14%lower than that of traditional solar collectors.The proposed porcelain-aluminum composite solar collectors have advantages in terms of cost,life,and efficiency and can be used to build large-area solar collector systems to meet current development requirements of the solar energy industry.It has good economic and social benefits and broad application prospects.