21–23 May 2018
Topland | Hotel & Convention Center Phitsanulok
Asia/Bangkok timezone

Estimation of daily global solar radiation at Lopburi province from meteorological parameters using artificial neural network

22 May 2018, 11:00
15m
Lopburi Room

Lopburi Room

Oral Environmental Physics, Atmospheric Physics, Geophysics and Renewable Energy A14: Environment

Speaker

Dr Pranomkorn Choosri (Division of Physics, Faculty of Science and Technology, Thepsatri Rajabhat University)

Description

Solar radiation is important to all living organisms and it is the energy source for solar technologies such as photovoltaic and solar thermal systems. Generally, the amount of incident solar radiation can be obtained from ground-based measurements. However, the number of solar radiation monitoring stations is very limited. In this work, the artificial neural network (ANN) was proposed to derive the amount of incident solar radiation at Lopburi province (14.83°N, 100.62°E). This ANN has one input layer, two hidden layers and one output layer. The input layer consists of air temperature, air relative humidity, visibility, cloud cover, wind speed and air pressure, and the output layer is daily global solar radiation. The ANN was trained using the input and output data collected at Lopburi meteorological station during the year: 2007-2014. Then it was validated against the data at the same station for the period of three years (2015-2017). The validation results show that solar radiation obtained from ANN and that from the measurement are in reasonable agreement, with root mean square error of 12.8% and mean bias error of -1.6%.

Author

Dr Pranomkorn Choosri (Division of Physics, Faculty of Science and Technology, Thepsatri Rajabhat University)

Co-authors

Dr Sumaman Buntoung (Department of Physics, Faculty of Science, Silpakorn University) Dr Noppamas Pratummasoot (Applied physics program, Faculty of Science and Technology, Valaya Alongkorn Rajabhat University under the Royal Patronage) Prof. Serm Janjai (Department of Physics, Faculty of Science, Silpakorn University)

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