摘要
以北京54511气象观测站的太阳辐射数据为基础,分别用该气象站2003年实测太阳辐射数据、Elman神经网络预测得到的2003年太阳辐射数据和标准气象年太阳辐射数据,以斜面上累计太阳辐射总量最大为目标,分别计算太阳能平面接收器的最优安装角度,得到了3种情况下月最优安装角度、全年最优安装角度、夏半年以及冬半年最优安装角度.以按实测数据求解所得结果为基准,进行比较.结果表明,按神经网络预测数据计算的最优安装角比按标准气象年数据计算的结果更为理想.
Solar collectors should be tilted at the correct angle for the best performance. Based on solar irradiation data collected at No. 54511 Meteorological Observatory in Beijing, 3 data sets of irradiance, i. e. , the real, Elman neural network forecasted, and of the typical meteorological year, are used for the optimization of tilt angles in 2003 respectively, the accumulative total solar irradiance being the objective. The solution of each problem gives the monthly, yearly, and half year optimum tilt angles. Comparing to the results of the real data, it is obvious that the optimum tilt angles resulted from the forecasted data are more applicable, because they are more accurate than the angles resulted from the data of the typical meteorological year.
出处
《东华大学学报(自然科学版)》
CAS
CSCD
北大核心
2009年第6期721-725,共5页
Journal of Donghua University(Natural Science)