کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7163656 1462873 2015 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Predicting daily photosynthetically active radiation from global solar radiation in the Contiguous United States
ترجمه فارسی عنوان
پیش بینی روزانه تابش فعال فتوسنتزی از تابش خورشیدی جهانی در ایالات متحده مجاور
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
An investigation on the daily photosynthetically active radiation (PAR) with the global solar radiation (Rs) is conducted at 7 surface radiation budget monitoring stations across the Mainland United States by exploiting a 3 years (2009-2011) data achieve. The clearness index, the diffuse fraction and the skylight brightness along with the dew point temperature and the cosine of solar zenith angle are used to generate empirical relationships for predicting PAR from Rs. Records of 2009 and 2010 are employed for model establishment, while records of 2011 are used for validation. The accuracy of the models' predictions is evaluated by four statistics parameters, including the coefficient of determination, the root mean square error, the mean percentage error and the relative standard deviation. Results show that the polynomial model taking the clearness index as main parameter plus the cosine of solar zenith angle has the best performance out of ten proposed models. And the clearness index is capable to be the indicator for PAR prediction, as a substitute of the combination of the diffuse fraction and the skylight brightness.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 89, 1 January 2015, Pages 71-82
نویسندگان
, , , ,