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为了探索适用于夏热冬冷地区的冬季供热方式,提高热舒适度和能源利用率,本文设计了1套太阳能和空气源热泵联合运行的供暖供热水系统,采用polysun软件作为分析工具,重点从采用平板集热器和热管式真空管集热器后集热器出口温度、水箱温度及房间热舒适性等方面进行比较分析研究,研究结果表明:无论是用平板集热器还是热管式真空管集热器,模拟建筑冬季室内温度都在18.5~19.5℃之间,满足相关规范对冬季居住建筑室内温度的要求,真空管集热器在辐照度大的季节比平板式集热器有更高的热效率,而在冬季辐射照度较低时,集热器出口温度二者相差不明显。因而,在仅用于冬季供暖和夏季供生活热水的系统中,采用前述2种集热器,其供热效果基本相同,但若要在夏季同时用于太阳能供冷空调,则热管式真空管集热器从热效果来说明显优于平板集热器。
In order to explore winter heating mode suitable for hot summer and cold winter area and improve thermal comfort and energy efficiency, a set of solar heating and air source heat pump combined heating and water heating system was designed in this paper. Polysun software was used as analysis tool, The paper mainly analyzes and compares the collector outlet temperature, water tank temperature and room thermal comfort after using flat-panel collectors and heat-pipe vacuum tube collectors. The results show that no matter whether flat collectors or heat-pipe vacuum tubes The indoor temperature of the collector and the simulated building in winter are both between 18.5 and 19.5 ℃, which meets the requirements of the relevant norms for the indoor temperature of residential buildings in winter. The vacuum tube collector has a higher irradiance than the flat-type heat collector in the season with large irradiance Of the thermal efficiency, while in the winter low irradiance, the collector outlet temperature difference between the two is not obvious. Thus, in the system only for winter heating and domestic hot water in summer, the use of the above two kinds of collectors, the heating effect is basically the same, but to be used in summer and solar air-conditioning, the heat pipe vacuum tube Collector from the thermal effect is obviously better than the flat-panel collector.