Total views : 327

Temperature based Radiation Models for the Estimation of Global Solar Radiation at Horizontal Surface in India

Affiliations

  • Department of Electrical Technology, Karunya University, Coimbatore - 641114, Tamil Nadu, India
  • Renewable Energy Technologies, Karunya University, Coimbatore - 641114, Tamil Nadu, India

Abstract


Background/Objectives: The objective of this study is to compare five different temperature based empirical models and to select the most accurate model to estimate the monthly average Global Solar Radiation (GSR) in India. Methods/Analysis: Five empirical equations namely Hargreaves and Samani, Bristow and Campbell, Pandey and Katiyar First, second and third order models have been employed to estimate monthly average GSR on horizontal surface using minimum and maximum temperature. Using these equations GSR is estimated at New Delhi (Latitude 28.61° N, Longitude 77.20° E) and Chennai (Latitude 13.08° N, Longitude 80.27° E), India and the meteorological data for this work have been obtained from India Meteorological Department (IMD), Pune from 2002-2012. Findings: Solar radiation data are not easily available in all locations due to higher cost and difficulty in measurement. It can be estimated by empirical equations using meteorological parameters like sunshine hour, temperature and relative humidity, out of which temperature is the most commonly available meteorological data. Empirical coefficients appeared in correlation equations based on temperature have been found using the latest computing MATLAB software. Estimated GSR values were compared with measured values based on statistical measures such as Root Mean Square Error (RMSE) and correlation coefficient (R). Comparing five equations, it is found that third order correlation provides good results with R = 0.9882 and RMSE = 0.840. From the results, it is concluded that the temperature based models has good potential for estimating GSR for any locations where measurement of sunshine duration data are not possible. Improvements: Further, in future, these empirical equations and temperature based ANN models would be applied for different places having good solar potential such as Hyderabad, Bhubaneswar and other states of India would be reported.

Keywords

Empirical Equations, Monthly Average Global Solar Radiation, Temperature.

Full Text:

 |  (PDF views: 405)

References


  • Angstrom A. Solar and terrestrial radiation. Quarterly Journal of the Royal Meteorological Society. 1924; 50(4):121–6.
  • Prescott JA. Evaporation from a water surface in relation to solar radiation. Transactions of Royal Society, South Australia.1940; 64:114–8.
  • El-Sebaii AA, Al-Ghamdi AA, Al-Hazmi FS, Faidah A. Estimation of global solar radiation on horizontal surface in Jeddah, Saudi Arabia. Energy Policy. 2009; 37:3645–9.
  • Marwal VK, Punia RC, Sengar N, Mahawar S, Dashora PA.Comparative study of correlation functions for estimation of monthly mean daily global solar radiation for Jaipur, Rajasthan (India). Indian Journal of Science and Technology.2012 May; 5(5):2729–32.
  • Teke A, Basak Yildirim H. Estimating the monthly global solar radiation for Eastern Mediterranean region. Energy Conversionand Management. 2014; 87:628–35.
  • Besharat F, Dehghan AA, Faghih AR. Empirical models for estimating global solar radiation: A review and case study.Renewable and Sustainable Energy Reviews. 2013; 21:798– 821.
  • Bulut H. Simple model for the generation of daily global solar radiation data in Turkey. Applied Energy. 2007; 84:477–91.
  • Rizwan M, Jamil M, Kothari DP. Solar energy estimation using REST2 model. International Journal of Energy and Environment. 2010; 1:367–74.
  • Hargreaves GH, Samani ZA. Estimating potential evapotranspiration. J Irrig Drain Eng. 1982; 108(IR3):223–30.
  • Bristow KL, Campbell GS. On the relationship between incoming solar radiation and daily maximum and minimum temperature. Agric Forest Meteorol. 1984; 31:159–66.
  • Pandey CK, Katiyar AK. Temperature base correlation for the estimation of global solar radiation on horizontal surface. IJEE. 2010; 1:737–44.
  • Almorox J. Estimating global solar radiation from common meteorological data in Aranjuez, Spain. Turk J Phys. 2011; 35:53–64.
  • Katiyar AK, Pandey CK. A review of solar radiation Modelspar1. Journal of Renewable Energy. 2013; 168048:11 pages

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.