Prediction and Assessment of Direct and Diffuse Radiation Fractions for Hourly, Daily and Monthly Average Global Radiation at Different Latitude Locations in Libya
Journal Title: Solar Energy and Sustainable Development - Year 2017, Vol 6, Issue 2
Abstract
As in today´s world, the dramatic increase in world’s population, the rapid depleting of conventional fuels (Fossil Fuels) as well as the environmental impact have left us no choice but to discover alternative energy sources. In fact, this would ensure a better and safer life on this earth and this will only be accomplished by using the best option of nonconventional and non-exhaustible sources of energy, which is the solar energy. The current study is aimed at evaluating the availability and potentiality of direct and diffuse solar radiations in three different locations in Libya within different latitudes. Three different locations with different values of measured daily solar radiation are opted for comparison purposes. This daily solar radiation data are used to create an hourly database of solar radiation. The mathematical framework for the prediction and assessment has been chosen to be the Microsoft Excel. The resultant monthly, daily and hourly diffuse fraction relative to their clearance indexes have been in very good agreement with existing research. Moreover, one of the main findings of this attempt is that this study has claimed and justified the usefulness of direct radiation in operating the concentrating solar power (CSP) plants, attributed to its overall magnitude of approximately 75% of the global radiation, particularly at the summer season.
Authors and Affiliations
Farag Ahwide
Keywords
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