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5.4.2. Aras et al. Model Monthly-average diffuse solar radiation was calculated as a function of clearness index for CAR of Turkey was given as: H = Hₒ 0.2427 − 0.0933 S S + 0.1846 Sₒ Sₒ − 0.2184 S Sₒ 5.4.3. New Developed Equation D The model was developed for Izmir, Turkey. The equation is: H = Hₒ 0.391 − 0.59 S S + 0.318 Sₒ Sₒ (5.4.2) (5.4.3) 27
CHAPTER 6 RESULTS 6.1. Results for Global Solar Radiation In the analysis, the data measured at the IZTECH Campus between 2005 and 2007 were used. The equations mentioned in Chapter 1 were calculated in order to estimate the total monthly-average daily global radiation. Starting from Eq. (1.5), δ values were calculated and varied between -23.44° and 23.44°. In order to estimate Sₒ, Eqs. (1.6) and (1.2) were used respectively. In Table 3, Sₒ can be seen for 3-yr period. Table 3. Monthly-average of the maximum possible daily hours of bright sunshine for 2005-2007 Months Hour January 9,65 February 10,55 March 11,72 April 13,14 May 14,17 June 14,63 July 14,39 August 13,45 September 12,21 October 10,94 November 9,79 December 9,36 Table 4 showed the monthly average daily bright sunshine hours for Izmir, Turkey that was derived from measured data in the Solar-Meteorological Station of Solar Energy Institute in Ege University. 28
Page 1 and 2: MEASUREMENT AND COMPARISON OF SOLAR
Page 3 and 4: ACKNOWLEDGEMENTS First of all, the
Page 5 and 6: ÖZET İZMİR/TÜRKİYE İÇİN GÜ
Page 7 and 8: 4.8. Ulgen and Hepbasli’s Model
Page 9 and 10: Table LIST OF TABLES Table 1. Turke
Page 11 and 12: DMI EIEI IYTE MBE RMSE e t-stat MPE
Page 13 and 14: development. Globally, an estimated
Page 15 and 16: eceived directly (direct radiation)
Page 17 and 18: According to these data, Turkey's a
Page 19 and 20: 2.1. Global Solar Radiation CHAPTER
Page 21 and 22: Electrical Works Research Directora
Page 23 and 24: Togrul et al. (2002) developed some
Page 25 and 26: so widely throughout China that the
Page 27 and 28: Figure 2. Approximate construction
Page 29 and 30: Meteorological data including tempe
Page 31 and 32: CHAPTER 4 ANALYSIS OF GLOBAL RADIAT
Page 33 and 34: The equation was in the Group 2. H
Page 35 and 36: CHAPTER 5 ANALYSIS OF DIFFUSE RADIA
Page 37: 5.3. 퐇 퐝 as a Function of 퐇
Page 41 and 42: Table 5. Hₒ values for Izmir Mont
Page 43 and 44: 1000 900 800 700 600 500 400 300 20
Page 45 and 46: According to Table 9 the maximum va
Page 47 and 48: 36 Table 10. Hourly average global
Page 49 and 50: Evaluation of Group 1: There is onl
Page 51 and 52: 2000 1800 1600 1400 1200 1000 800 6
Page 53 and 54: The following main results were obt
Page 55 and 56: CHAPTER 7 CONCLUSION In this thesis
Page 57 and 58: Haydar A.; Balli O.; Hepbasli A. (2
Page 59 and 60: Yildiz, M. and Oz, S. (1994), Evalu
Page 61 and 62: 700 600 500 400 300 200 100 0 900 8
Page 63 and 64: 800 700 600 500 400 300 200 100 0 6

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