平板型立式水箱太阳热水器两种得热量测试方法对比研究  

Comparative Study on the Two Testing Methods to Obtain the Heat Gain for Flat-plate Solar Water Heaters with Vertical Storage Tanks

作　　者：刘雪平[1] 高文峰[1] 许玲[1] 林文贤[1] 丁祥[1] 代伟[1] 刘滔[1] 

机构地区：[1]云南师范大学太阳能研究所教育部可再生能源材料先进技术与制备重点实验室,云南昆明650092

出　　处：《云南师范大学学报（自然科学版）》2011年第4期36-40,共5页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(50879074;11072211);高等学校博士学科点专项科研基金(20105303110001);西部高原地区太阳能有效利用及可持续开发研究教育部创新团队

摘　　要：采用混水法和排水法对平板型立式水箱太阳热水器进行了有用得热量对比测试研究。结果表明排水法测得的有用得热量略高于混水法。此外,通过实验还发现混水法中滞留在平板集热器内的有用热量份额不大,因此,在对平板型太阳热水器进行得热量测试时可以忽略平板集热器内工质的影响。In this paper, the testing methods to obtain the useful heat gain for flat-plate solar water heaters with vertical storage tanks by the mixing-water method and by the draining-water meters are comparatively studied. The results show that the useful heat gain obtained by the draining-water method is slightly higher that that obtained by the mixing-water method. In addi- tion, the experiments also show that in the mixing-water method the percentage of useful heat gain stored in the flat-plate solar collectors is small and hence when we conduct the testing on the useful heat gain for flat-plate solar water heaters the effect of the working medium in the flat-plate solar collectors can be assumed negligible.

关 键 词：排水法 混水法 得热量 平板型太阳热水器 

分 类 号：TK519[动力工程及工程热物理—热能工程]