论文部分内容阅读
根据合肥地区的实测气象数据,采用数值模拟和实验分析相结合的方法,对槽式太阳能聚光集热系统在春、夏、秋、冬4个典型工况下的3种不同跟踪模式(二维跟踪、东西向跟踪和南北向跟踪)的性能进行研究和分析。结果显示:采用东西向跟踪时,系统的集热性能主要受一年四季太阳位置的变化以及太阳辐照强度的影响,夏季时系统集热效率最大,达到0.351,冬季最小,降至0.196;而采用南北向跟踪和二维跟踪时,系统的集热性能主要受太阳辐照强度的影响,其中,南北跟踪时系统效率为0.300~0.312,二维跟踪时系统效率为0.347~0.363。
According to the measured meteorological data in Hefei area, the numerical simulation and experimental analysis were used to analyze the effects of three different tracking modes of solar collector system on spring, summer, autumn and winter Dimensional tracking, east-west tracking and north-south tracking) performance research and analysis. The results show that with the east-west tracking, the heat-collecting performance of the system is mainly affected by the change of the solar position and the solar radiation intensity in all seasons. The summer heat collection efficiency is the highest, reaching 0.351 in winter and the lowest in winter, decreasing to 0.196. North-South tracking and two-dimensional tracking, the heat collecting performance of the system is mainly affected by solar radiation intensity, of which the system efficiency is 0.300 ~ 0.312 for north-south tracking and 0.347 ~ 0.363 for two-dimensional tracking.