1. 兰州理工大学 能源与动力工程学院， 兰州 730050；2. 甘肃省生物质能与太阳能互补供能系统重点实验室， 兰州 730050
发布日期:2019-12-11通讯作者:张东(1985-)，男，甘肃省兰州市人，副教授，主要研究方向为太阳能热利用. 电话(Tel.)：0931-2973750；E-mail: zhdlgn@126.com.基金资助:国家自然科学基金项目(51166008，51806093)，甘肃省自然科学基金项目(18JR3RA141)，甘肃省建设科技攻关项目(JK2014-48，JK2017-9)，兰州理工大学红柳优秀青年教师计划Baffles Optimization of a Flat Plat Solar Air Collector with Double Channels
ZHANG Dong 1,2，ZHANG Jianjun 2，ZHANG Yuezhi 2，LI Jinping 1,2，WANG Linjun 21. School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China； 2. Key Laboratory of Complementary Energy System of Biomass and Solar Energy, Lanzhou 730050, China
Published:2019-12-11摘要/Abstract
摘要： 构建了平板型双流道太阳能空气集热器，提出了安装开孔型扰流板的结构优化方案，将该方案与安装平面无孔式扰流板及无扰流板集热器进行了对比分析.结果表明，安装平面无孔式扰流板后，集热器背部区域会形成局部空气流动死区，而安装开孔型扰流板可以破坏和抑制流动死区的形成，从而提高集热器的集热效率和热性能.相比未安装扰流板的原始模型，安装扰流板后集热效率由53.4%增加到67.9%.
关键词: 太阳能空气集热器； 开孔型扰流板； 优化； 集热效率
Abstract: A flat plate solar air collector with double channels is established. The optimization schemes with perforated baffles are proposed. The thermal performance of optimized collector is anlyzed and compared with the commom plane baffle and non-baffle types. The results show that flow dead zones in back of baffles appear generally. The solar air collector with perforated baffles has a higher collector efficiency and thermal perfromance because of the forceful destabilization of flow dead zone. Compared with the model without baffles, the collecor efficiency increases from 53.4% to 67.9%.
Key words: solar air collector; perforated baffles; optimization; collector efficiency
PDF全文下载地址:
点我下载PDF
