厦门地区固定式集热器最佳倾角分析-《集美大学学报（自然科学版）》

文章信息/Info

Title:: Analysis on the Best Optimum Tilt Angle for Fixed Installed Solar Collector in Xiamen Area

Author(s):: DING Defeng; HUANG Wenhong; CHEN Wu; (Provincial Key Laboratory of Naval Architecture & Ocean Engineering,School of Marine Engineering,Jimei University,Xiamen 361021,China)

Keywords:: solar collector; tilt angle; auxiliary energy; heat gain; Xiamen area

摘要:: 为了确定厦门地区集热器的最佳倾角，以年集热量最大、年辅助热量最小为目标，利用Visual Basic语言，计算得到最佳倾角分别为18.2°和39.1°，对这2种倾角与采用厦门纬度24.8°为倾角时全年各月太阳能集热量进行比较，同时在实验平台上研究了倾角对得热量的影响。结果表明：固定式集热器正南朝向时，得热量应与全年各月热水负荷相匹配，倾角采用39.1°时，秋冬季得热量最多，年辅助耗电量最小。该结果可为厦门地区太阳能系统的设计与安装提供理论依据。

Abstract:: In order to determine an optimum tilt angle for solar collector used in Xiamen area,calculations,which were based on the objectives of maximum annual heat gain and minimum annual auxiliary heating,were carried by employing Visual Basic language and accordingly obtained the optimum tilt angle respectively about 18.2° and 39.1°.The collected heat in every month under the above tilt angles was compared with that of 24.8° which is in correspondence with the latitude at Xiamen area.Also,the influence of tilt angle on heat gained was investigated on the experiment platform.The results show that,for fixed solar collector facing due south,the collected heat should match with those required by hot water at different months.In the autumn and winter seasons,when the tilt angle is set as 39.1°,the maximum heat is obtained in comparison of minimum consumption of auxiliary electricity.It suggests that the results from this paper can be a theoretical basis for solar system design and installation in Xiamen area.