作　　者： ; ;

机构地区： 华南理工大学电力学院

出　　处： 《制冷》 2008年第4期46-51,共6页

摘　　要： 基于广州市典型气象年参数,计算了广州地区太阳能热水系统集热器的适用面积,结果比通常太阳能厂商所推荐的面积值要大得多。按平均太阳能热水器面积值计算有14.5%的天数不能保障加热至所需温度,需较多的补充加热量。采用空气源热泵补充加热,随太阳能热水器加热面积减小,需补充加热耗电量增加。采用太阳能和空气源热泵热水系统的节电率相对直接电加热或水源辅助热泵补充加热的系统优势增大。 Based on the typical year climate data of Guangzhou, the appropriate solar collector area used in Guangzhou was calculated, it is much greater than that recommended by manufacturers usually and the water temperature heated by the solar collector water heater with average area can＇t meet the required temperature in 14.5 % of time. Therefore, more thermal energy must be supplemented. The power consumption increases with the solar collector area reduced when air- source heat pump serves as assisted thermal source. Compared with electricity heating or direct - expansion heat pump assisted solar water heat- ing system, air- source heat pump assisted solar water heating system shows greater electricity saving rate.

关 键 词： 热泵 太阳能 热水器

领　　域： [建筑科学] [建筑科学]