Solar Radiation Studies for Dubai and Sharjah, UAE

Global Solar Radiation (H) for Dubai and Sharjah, Latitude 25.25oN, Longitude 55oE and 25.29oN, Longitude 55oE respectively have been studied using sunshine hour data (n) of the areas using various methods. These calculated global solar radiation values are then compared to the measured values presented by NASA. Furthermore, the extraterrestrial (H0), diffuse (Hd) and beam radiation (Hb) are also calculated. The diffuse radiation is calculated using methods proposed by Page and Liu and Jordan (L-J). Diffuse Radiation from the Page method is higher than the L-J method. Moreover, the clearness index (KT) signifies a clear sky almost all year round. Rainy days are hardly a few in a year and limited in the months December to March. The temperature remains between 25oC in winter to 44oC in summer and is desirable for thermal applications of solar energy. From the estimated results, it appears that solar radiation can be utilized very efficiently throughout the year for photovoltaic and thermal applications.




References:
[1] Website: http://www.juancole.com/2011/01/map-of-united-arabemirates
.html, viewed: 20-09-2012
[2] Aksakal A, Rehman S. Global solar radiation in Northeastern Saudi
Arabia. Renew Energy 1999; 17: 461-72.
[3] Tiwari, G.N and Suleja, Sangeeta. Solar Thermal Engineering System,
Narosa Publishing house, New Dehli, India, 1997.
[4] Iqbal M. An introduction to solar radiation. Toronto: Academic press,
1983.
[5] Rietveld M R. Anew method for estimating the regression coefficients in
the formula relating solar radiation to sunshine. Agricultural
Meteorology 1978; 19:243-352.
[6] Gueymard C, Jindra P, Estrada-Cajigal V. Acritical look at recent
interpretations of the Angstrom approach and its future in global solar
radiation prediction. Solar Energy 1995; 54(5):357-63.
[7] Gopinathan KK. A general formula for computing the coefficients of the
correction connecting global solar-radiation to sunshine duration. Solar
Energy 1988; 41(6):499-502.
[8] L.T. Wong, W.K. Chow. Solar Radiation Model. Applied Energy 2001;
69:191-224
[9] M.D. Islam, I. Kubo, M. Ohadi, A.A. Alili. Measurement of solar energy
radiation in Abu Dhabi, UAE. Applied Energy 2009; 86: 511-515
[10] Angstrom A. Solar and terrestrial radiation. Quarterly Journal of Royal
Meteorological Society 1924; 50:121-6.
[11] Black J.N, Bonython C.W and Prescett J.A. Solar radiation and duration
of Sunshine, Q.J.R Metero. Soc. 1954; 80: 231-235
[12] Glover,J and McCulloch,F. The empirical relationship between solar
radiation and hours of sunshine. Q.J.R. Met .Soc. 1958; 84: 359. 56-60
[13] Gopinathan, K.K. A new model for estimating total solar radiation. Solar
and Wind technology. 1988; 5: 1. 107 - 109
[14] Liu, Y.H and Jordan, R.C. The inter relationship and characteristic
distribution of direct, diffuse and total solar radiation from metrological
data. Solar Energy. 1960; 4: 1-19
[15] Reddy, S. J. An empirical method for the estimation of net radiation
intensity Solar Energy. 1971; 13: 291-292
[16] Sabbagh, J. A., Sayigh, A.A.M. and El. Salam, E.M.A. Estimation of the
total solar radiation from meteorological data. Solar Energy. 1977; 19:
307-311
[17] Hoyt, D. V. A model for the calculation of solar global insolation. Solar
Energy. 1978; 21: 27-35
[18] Abdullah, Y.A.G. and Farugh, G.M. Contribution to the study of solar
radiation in Abu Dhabi. Energy Conv. and Management. 1988; 28: 1.
63-67
[19] Chandal S.S, Agarwal R.K., Pandey A.N., New correlation to estimate
Global Solar Radiation on Horizontal Surface using sunshine Hours and
Temperature data for Indian Cities. Jour. of Solar Energy Engineering.
2005; 127: 417-420
[20] Ahmed, Akhlaque M. and Ahmad, Firoz. Wind Energy potential and its
characteristics distribution for power generation at Hyderabad Sindh,
Pakistan. Kar. Univ. Jour. Sci. 2004; 32 (1 &2): 21-26
[21] Udo, S. O. Contribution to the relationship between Solar Radiation and
sunshine duration in the tropics: A study case of experimental data at
Illorin, Nigeria. Turkish J. Physics. 2002; 26: 229
[22] Togral, I. T. and Hasan, Togrul. Global solar radiation over Turkey.
Comparison of predicted and measured data. Renewable Energy. 2002;
25: 55
[23] Assi A, Jama M, Al-Shamisi M. International Scholarly Research
Network. Renewable Energy. Prediction of Global Solar Radiation in
Abu Dhabi. 2012.
[24] Ahmed, M.A. Ahmad, F. Akhtar M.W. Estimation of Global and Diffuse
Solar Radiation for Hyderabad, Sindh, Pakistan. J. Basic and Appl. Sci.
2009; 5: 73-77
[25] http://eosweb.larc.nasa.gov/sse/, viewed: 8/10/2012.
[26] Duffie, J.A and Beckman, W.A. Solar Engineering of Thermal
Processes. John-Wiley and Sons, New York. 1991.
[27] Frere et al. Graphs given in A.A Flocas paper estimation and prediction
of Global Solar Radiation over Greece. Solar Energy. 1980; 24: 63-70.
[28] Website: http://www.dia.ae/DubaiMet/Met/ Climate.aspx, viewed: 20-
09-2012
[29] Gary R. Feulner. Rainfall and climate records from Sharjah Airport:
Historical data for the study of recent climatic periodicity in the U.A.E.
Tribulus 16.1 Spring/Summer. 2006
[30] Page, J.K. The estimation of monthly mean values of daily short wave
radiation on vertical and inclined surface from sunshine records of
latitude 40 degree N to 40 degree S. Proc. of UN-conf on new sources of
Energy. 1964; 1 (4) paper s/98.378
[31] Klien, S.A. Calculation of monthly average isolation on tilted surface.
Solar Energy. 1977; 9: 325