【摘要】 太阳能热水系统设计的关键是系统中各参数的选择计算,其主要参数的选择范围较大,而设计人员仅凭个人经验选择,故造成设计结果相差较大。通过对连云港市太阳能热水系统设计所需的基础资料的收集和分析,探讨了太阳能集热器总面积计算中水的初始温度、年均集热效率、年平均日太阳辐照量、热损失率、太阳能保证率等各参数的合理取值及对太阳能系统设计的影响,计算得出连云港市太阳能保证率宜取60%~70%。更多还原

【Abstract】 The key to design solar water heating system lies in the selection of the system’s various parameters.Since key parameters have a large range to select from,any selection solely based on the individual experience of design staff might result in huge discrepancy between the design and practical utility.We explore and study in this paper the appropriate figures of various parameters,such as the water’s original temperature,annual average heat accumulation efficiency,average daily solar irradiation per year,heat deficit rate solar fraction and their effects on designing solar system,based on the necessary statistics and materials that are collected for the purpose of designing solar water heating system in Lianyungang City.Calculation reveals that the solar fraction in Lianyungang City should be 60% to 70%.更多还原