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6th International Ege Energy Symposium & Exhibition Oral Presentations Finally, to show the efficiency of tracking on winter times Fig. 5 and 6 are plotted on same graph and a zoom (as given in Fig. 8) is plotted. 60 50 40 30 20 10 0 0 100 200 300 400 500 600 Time (Minute) 700 800 900 1000 Fig. 8 A zoomed plot taken from Fig. 5 and Fig. 6 It is obvious from Fig. 8 that, for the cases in which cloud effects are occurred, tracking has small contribution on power generations. However, for clear weather conditions the contribution increases, considerably. Considering the energy consumption of tracking systems it can be argued by the results of this study that, an innovative tracking algorithm that takes such effects into account should be more convenient. 5 CONCLUSION In this study, initial results of an ongoing scientific project are presented. On the coverage of this project, a tracking system is designed and introduced. Mono-crystalline Pv modules are selected and employed to analyze the efficiency of tracking under winter conditions at Afyonkarahisar region. The Pv modules are situated into both fixed and movable systems. Minutely power generations of the systems are obtained and compared. It is concluded that tracking the sun has considerably improves power generation efficiency of Pv modules. However, it is argued that an innovative tracking algorithm should be more useful and must be developed to maximize the energy efficiency and minimize the energy consumed while tracking. Furthermore, the effect of tracking on different Photovoltaic panels must also be examined. Such studies should be regarded as future studies. ACKNOWLEDGEMENTS This study is supported by Turkish Consul of Higher Education (TUBITAK) by the project number 111E134. REFERENCES [1] Hocaoğlu, FO., Gerek, ÖN., Kurban, M.,A novel hybrid (wind–photovoltaic) system sizing procedure Solar Energy, Volume 83, Issue 11, November 2009, Pages 2019-2028. [2] Hocaoğlu, FO., Novel analytical hourly solar radiation models for photovoltaic based system sizing algorithms Energy Conversion and Management, Volume 51, Issue 12, December 2010, Pages 2921-2929. [3] Sefa, I., Demirtas, M., Colak, I., Application of one-axis sun tracking system, Energy Conversion and Management, 2009. 28-30 June 2012, Izmir Turkey 524 Power (W)PDF Image | IEESE EGE Energy Exhibition
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