Unit:
Τομέας Φυσικής ΕφαρμογώνLibrary of the School of Science
Supervisors info:
Έλενα Φλόκα Αναπλ. Καθηγήτρια ΕΚΠΑ (Επιβλέπουσα), Κωνσταντίνος Ιακωβίδης Αναπλ. Καθηγητής ΕΚΠΑ, Στέλιος Καζαντζής Κύριος Ερευνητής ΙΕΒΠΑ/ΕΑΑ
Original Title:
Μέτρηση της ηλιακής ακτινοβολίας κεκλιμένης επιφάνειας με σκοπό την ποσοτικοποίηση της κατανομής του πεδίου ακτινοβολίας για ενεργειακές εφαρμογές
Translated title:
Measurement of solar radiation on the inclined surface in order to quantify the distribution of the radiation field for energy applications
Summary:
In this paper, we will work with the aim to be able to quantify the
distribution of the field of solar radiation on incline surfaces, with a view
to using the results in energy applications. The area we will study is that of
Greece, and in particular we will study three cities; Thessaloniki, Athens and
Chania which represent respectively the Northern, Central and Southern part of
the country. Using 10-year- period measurements of solar radiation and 3
different slopes surfaces we give results for the optimum angle to have the
solar collector. The slopes of the surfaces vary as follows; horizontal surface
angle of 0°, inclined surface with tilt angle equal to the latitude of the
study area and finally inclined surface with variable angle of inclination
depending on the zenith of the sun.
Then, we have incorporated the factor known as cloud that cuts massive amounts
of solar radiation to reach the earth thus remains unexploited huge amount of
solar energy. So using 10-year-period cloud cover data we derive a mathematical
model that allows predictions of solar radiation on horizontal and inclined
surfaces on a monthly basis for a specific place and taking into account the
cloud cover.
Keywords:
Solar radiation , Inclined surface, Radiation field distribution, Cloud fraction, Forecast solar radiation
