Modelling of Optimal Tilt Angle for Solar Collectors Across Eight Indian Cities

Jims John Wessley, R Starbell Narciss, S. Singaraj Sandhya


Solar-thermal applications require an illustrative knowledge of the solar radiation available in a particular location or region to enable efficient design and effectual utilization of solar energy. Due to the availability of meteorological stations only at few prominent places, the solar data estimated for other places depends largely on the latitude-based models proposed by various researchers, played a vital role in estimating the solar radiation data. In addition to this, the knowledge on proper orientation of the solar collector is a necessary parameter in the effective utilization of solar radiation to receive optimum radiation. In the present work, the optimum tilt angle for eight different cities across India is computed. The solar radiation received at various angles of tilt ranging from 1-90° is simulated and a yearly optimum tilt angle is determined for all the cities. From these results, a mathematical correlation to estimate the optimum tilt angle for any Indian city based on its latitude is proposed. The outcomes of this study will play a vital role in estimation and effective utilization of the freely available solar energy towards sustainable development of our nation.

Total Views: 374


Latitude-based models; Optimum tilt angle; Yearly tilt angle; Solar collectors; Solar energy

Full Text:



Hassane Darhmaoui and Driss Lahjouji, “Latitude based model for tilt angle optimization for solar collectors in the Mediterranean region”, Energy Procedia, vol.42, pp. 426-435, 2013. (Article)

S.Bandyopadhyay, S. Chakrabarti and D. Mukherjee, “Mathematical model Development for optimum orientation of a flat plate collector”, Journal of emerging Technology and advanced Engineering, vol. 3, pp. 613-621, 2013. (Article)

Amita Chandrakar and Yogesh Tiwari, “Optimization of solar power by varying tilt angle/slope”, International Journal of Emerging Technology and Advanced Engineering, vol. 3, No. 3, pp. 145-150, 2013. (Article)

Farzad Jafarjazemi, S. Ali Saadabadi and Hadi Pasdarshahri, “The Optimum tilt angle for flat plate solar collectors in Iran”, Journal of Renewable energy research, vol. 2, No. 4, pp. 665-673, 2012. (Article)

Akachukwu ben Eke, “Prediction of Optimum angle of inclination for flat plate solar collector in Zaria, Nigeria”, Agricultural Engineering International : CIGR Journal, vol. 13, No. 4, pp. 1-7, 2011. (Article)

Tian Pau Chang, “Study on the optimal Tilt angle of solar collector according to different radiation types”, Journal of applied science and Engineering, vol. 6, pp. 151-161, 2008. (Article)

N. Z. Al-Rawahi, Y.H. Zurigat. and N.A. Al-Azri, “Prediction of hourly solar radiation on horizontal and inclined surfaces for Muscat/Oman” Journal of Engineering research, vol. 8, No. 2, pp. 19-31, 2011. (Article)

S. Sandhya, R. Narciss Starbell, G. Jims John Wessley, “Modeling and Analysis of Latitude-Based Solar Radiation Models Suitable for Indian Cities”, Journal of Basic and Applied Engineering Research, vol. 1, No. 9, pp. 120-123, 2014. (Article)

A. John Duffie and A. William Beckman, Solar Engineering of Thermal Processes. New Jersy : John Wiley and sons Inc., 2013 (Book)


  • There are currently no refbacks.

Online ISSN: 1309-0127;;

IJRER is cited in SCOPUS, EBSCO, WEB of SCIENCE (Thomson Reuters)