老挝万象与中国昆明太阳能热水系统性能对比分析

Comparative Analysis of the Solar Water Heating System Performance in Vientiane,Laos and Kunming,China

利用POLYSUN提供的全球多年平均气象数据,对老挝万象与云南昆明的气候资源进行比较分析.在此基础上,以一套常规太阳能热水系统配置为例,利用POLYSUN对该系统在两地的全年运行特性进行比较分析,发现该太阳能热水系统在万象的太阳能保证率高达97.1%,比昆明高出约25%,不采用辅助热源就能基本保证所需热水供应;此外,万象的太阳能储热水箱内热水温度也比昆明高得多,在供热量确定的前提下,万象设计安装太阳能热水系统可减少集热器安装面积,节省成本,减轻系统结垢和老化.

Based on the global multi-years average weather data provided POLYSUN.Comparative analysis of the climate resources in Vientiane,Laos PDR and Kunming,China Taking a set of conventional solar water heating system configuration in Kunming as an example,POLYSUN is used to compare and analyze the operating characteristics of the system in the two places throughout the year,It was found that the solar fraction of Vientiane is 97.2%,which is about 25%higher than that of Kunming,without using auxiliary heat sources,the hot water system supply can be basically guaranteed.In addition,the energy provided by solar energy in Vientiane and the hot water temperature in the water tank is also much higher than Kunming area.When the solar water heating system is designed and installed in this area,under the premise that the heat supply is determined,the installation area of the collector can be reduced and the cost can be saved.