平板集热器冬季高流速运行数值模拟研究  

Numerical Simulation of High Mass Flow Rate Operation of Flat Plate Solar Collector in Winter

作　　者：方浩 李葱 杜涛 马进伟 FANG Hao;LI Cong;DU Tao;MA Jinwei(College of Civil Engineering,Anhui Jianzhu University,Hefei 230601,China;Anhui Architectural Design and Research Institute Co.,Ltd.,Hefei 230051,China;College of Civil Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]安徽建筑大学土木工程学院,安徽合肥230601 [2]安徽省建筑设计研究总院股份有限公司,安徽合肥230051 [3]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《云南师范大学学报（自然科学版）》2024年第1期9-12,共4页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：安徽省教育厅高校科学研究基金资助项目(YJS20210503)。

摘　　要：针对平板集热器(FPSC)冬季热水收集温度不足等问题提出高流速运行方案,以期提高系统的集热性能以及全年利用率.通过CFD技术数值模拟FPSC系统在不同流速工况下(0.02~0.15 kg/s)各组件温度的变化情况,计算系统的集热效率,结合温度云图对比高流速运行的优势.结果显示,高流速运行能够减少集热损失,具有更佳的集热性能.An operation scheme with a high mass flow rate was proposed to address the problem of insufficient hot water temperature in the winter of the flat plate solar collector(FPSC)to improve the heating performance as well as the annual utilization rate of the system.Using CFD technology to simulate the temperature changes of each component of the FPSC system under different flow conditions(0.02~0.15 kg/s),calculate the thermal efficiency of the system,and compare the advantages of high mass flow rate operation through the temperature nephogram.The result shows that the high mass flow rate operation can reduce the heat loss than that of the low mass flow rate and achieve better thermal performance.

关 键 词：平板集热器 循环流速 数值模拟 效率 性能 

分 类 号：TK519[动力工程及工程热物理—热能工程]