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Modeling and Analysis of Global and Diffuse Solar Irradiation Components Using the Satellite Estimation Method of HELIOSAT
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作者 Selmin Ener Rusen 《Computer Modeling in Engineering & Sciences》 SCIE EI 2018年第6期327-343,共17页
It is very important to determine the daily horizontal global,diffuse and beam irradiations correctly in planning energy systems,in cost analysis,in the atmosphere,and in the productivity evaluations.Besides,the knowl... It is very important to determine the daily horizontal global,diffuse and beam irradiations correctly in planning energy systems,in cost analysis,in the atmosphere,and in the productivity evaluations.Besides,the knowledge of accurate solar irradiation is the most important component of the essential climate variables according to the Global Climate Observing System(GCOS)in August 2010.It is known that the changes of these irradiation parameters directly affect our atmosphere and cloud formation processes.Turkey is one of the countries,which has high solar energy potential by reason of its climatic and regional factors.Especially,Konya and Karaman regions(in Central Anatolia Region)are seen as the most efficient area in where the solar energy systems will be processed.Because of this reason that region has been designated as an Energy Specialized Industrial Zone(ESIZ)in Turkey.Solar energy inputs must carefully be determined in this region where the systems will be installed with respect to the climate and energy efficiency.In this work aims to understand the components of daily solar irradiation on a horizontal surface in selected region are analyzed by using the HELIOSAT method by setting satellite images.Results have been determined by comparing with ground measured data and method were analyzed by using statistical errors.According to the seven-year data,the accuracy of the daily global and diffuse solar irradiations estimation was found acceptable levels.Nevertheless,the estimated results reveal that this method can easily be adapted to any point in the world resembles with the Central Anatolia Region climate type.Especially,the obtained results are significant for the simulation studies such as solar PV power plants performance,payback time,and cost of energy analysis.Also,these results can be used to increase the performance of the solar energy system and to determine long-term a road map for climate change studies. 展开更多
关键词 Estimation model SATELLITE heliosat GLOBAL and DIFFUSE SOLAR IRRADIATION
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基于FY-4A卫星观测估算全天空条件下地表太阳辐照度
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作者 刘笑 杨丽薇 +2 位作者 花家嘉 高晓清 贾东于 《兰州大学学报(自然科学版)》 北大核心 2025年第2期184-189,共6页
为提高全天空条件下地表太阳辐照度(SSI)的估算精度,基于FY-4A/AGRI卫星在甘肃和河北省7个SSI站点的可见光通道数据、观测数据以及McClear晴空模型数据,重新构建Heliosat-2模型中晴空指数和云反照率之间的关系,评估改进后模型的适用性.... 为提高全天空条件下地表太阳辐照度(SSI)的估算精度,基于FY-4A/AGRI卫星在甘肃和河北省7个SSI站点的可见光通道数据、观测数据以及McClear晴空模型数据,重新构建Heliosat-2模型中晴空指数和云反照率之间的关系,评估改进后模型的适用性.结果表明,改进的Heliosat-2模型提高了SSI的估算精度,估算的平均偏差绝对值由14.6 W/m^(2)降至3.59 W/m^(2),均方根误差由42 W/m^(2)降至37.54 W/m^(2),决定系数(R^(2))由0.64升至0.69.在不同观测地点、不同季节,估算的效果有所差异.3个验证站的数据中,改进的Heliosat-2模型在围场站的表现最好;估算的秋季SSI的平均偏差绝对值、均方根误差较小,R^(2)=0.7,拟合效果最好;在冬季的平均偏差绝对值最大,R^(2)=0.53,拟合效果较差. 展开更多
关键词 地表太阳辐照度 全天空条件 FY-4A/AGRI卫星 heliosat-2模型 云反照率
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