THERMAL SCIENCE

International Scientific Journal

EVALUATION OF DISTRIBUTIONAL SOLAR RADIATION PARAMETERS OF ČAčAK USING LONG-TERM MEASURED GLOBAL SOLAR RADIATION DATA

ABSTRACT
Serbia is becoming more dependent on imported primary energy to meet its increasing energy demand. The ratio of indigenous primary energy production to primary energy consumption is decreasing. Therefore, it is of great importance for Serbia to make use of its indigenous energy resources more effectively, including its solar energy potential. Knowledge of global solar radiation is essential in the prediction, study, and design of the economic viability of systems which use solar energy. In this paper, the solar radiation data on Čačak (lat 43.87°N, long 20.33°E) are analyzed based on 4 years of global solar radiation data measured on a horizontal surface. The distributional solar radiation parameters are derived from the available data and analyzed. The available solar radiation data on a horizontal surface are converted to that of various tilt angles and the yearly and monthly optimum tilt angles are determined.
KEYWORDS
PAPER SUBMITTED: 2007-10-01
PAPER REVISED: 2007-10-10
PAPER ACCEPTED: 2007-10-30
DOI REFERENCE: https://doi.org/10.2298/TSCI0704125D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2007, VOLUME 11, ISSUE 4, PAGES [125 - 134]
REFERENCES
  1. Akpabio, L. E., Etuk, S. E., Relationship between Global Solar Radiation and Sunshine Duration for Onne, Nigeria, Turk Journal of Physics, 27 (2003), 2, pp. 161-167
  2. Gunerhan, H., Hepbasli, A., Determination of the Optimum Tilt Angle of Solar Collector for Building Application, Building and Environment, 42 (2007), 2, pp. 779-783
  3. ***, RETScreen International, Clean Energy Decision Support Centre, Solar Water Heating Project Analysis, http://www.retscreen.net/
  4. Ali, M., Global, Direct and Diffuse Solar-Radiation in Syria, Applied Energy, 79 (2004), 2, pp. 191-200
  5. Duffie, J. A., Beckman, W. A., Solar Engineering of Thermal Processes, 2nd ed., John Wiley and Sons, New York, USA, 1991
  6. Tang, R., Wu, T., Optimal Tilt-Angles for Solar Collectors Used in China, Applied Energy, 79 (2004), 3, pp. 239-248

© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence