摘要
提出了一种新型的与建筑一体化太阳能双效集热器系统,该系统有两种工作模式:在冬季的被动采暖工作模式和在其他无需供暖时期的集热水工作模式.针对该新型系统的两种工作模式分别建立了与建筑耦合传热计算模型并进行了模拟计算.模拟结果表明:在冬季被动采暖工作模式下,在外环境平均温度只有2.8℃的给定模拟条件下,系统可以使房间温度最高提高至27.4℃,系统被动采暖性能优异;在自然循环集热水工作模式下,在给定模拟条件下,系统集热效率为54.8%,太阳得热总量为4.32MJ/m2.
A novel system of dual-functional building integrated solar collector is proposed.The system can run in two independent modes:passive space heating in cold days and solar water heating in hot days.Dynamic numerical models have been established to investigate the performance of the system in the two operating modes.Results show that when the system works in the space heating mode,the indoor air temperature reaches the maximum value of 27.4 ℃,with the maximum value of ambient temperature being only 2.8 ℃;when working in the water heating mode under given simulation conditions,the thermal efficiency of the collector is 54.8%,with the solar heat gains being 4.32 MJ/m2.
基金
国家自然科学基金(50876098)
"十一五"国家科技支撑项目(2006BAA04B04)
中国高技术研究发展(863)计划(2006AA05Z412)资助
关键词
与建筑一体化太阳能双效集热器系统
太阳能被动采暖
集热水
热效率
dual-functional solar collector integrated with buildings
passive space heating
water heating
thermal efficiency