期刊名称：International Journal of Energy and Environment
印刷版ISSN：2076-2895
电子版ISSN：2076-2909
出版年度：2011
卷号：2
期号：1
页码：191-198
出版社：International Energy and Environment Foundation (IEEF)
摘要：As the availability of solar radiation for a place depends upon the climatic conditions of the locality, a correlation for a place may not be suitable for other places of different climatic conditions. Therefore, an attempt has been made to develop a new model to evaluate hourly solar radiation on horizontal surface for Indian locations having different climatic conditions, using least square regression analysis based on the ASHRAE model. For this purpose measured diffuse and global solar radiation data from January 2001 to December 2005 of Ahmedabad, Calcutta, Bombay, Pune and Chennai cities of India have been used. Comparison between the estimated and the measured values shows that the constants derived for Indian locations provide good estimates of hourly solar radiation. The present estimated hourly solar radiation have also been compared with the estimates of the Liu and Jordan [7] and Singh et al [10] models which correlate hourly values and daily global radiation. In order to indicate the performance of the models, the statistical test methods of the mean bias error (MBE), root mean square error (RMSE) and t-test are used.
