ENERGY AND EXERGY ANALYSIS OF A SOLAR PHOTOVOLTAIC PERFORMANCE IN BAGHDAD

Author(s): 

Fadhil Abdulrazzaq Kareem1*, Doaa Zaid Khalaf2, Noor Samir Lafta3, Yasser Abdul Lateef2

Affiliation(s): 

1,3Institute of Technology Baghdad, Middle Technical University, Baghdad, Iraq

2Engineering Technical Collage Baghdad, Middle Technical University, Baghdad, Iraq

*Corresponding Author Email: fadhiljua91@yahoo.com

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Photovoltaic modules usually generate electricity from a specific range of light frequencies and cannot cover the whole solar range of infrared, ultraviolet and diffused light. Hence, much of the striking sunlight energy is wasted by the solar modules. Thus, energy and exergy analysis were conducted to determine the performance of a solar photovoltaic module in Baghdad, Iraq. An engineering equation solver (EES) software has been using to develop the mathematical model. The environmental parameter of solar radiation, ambient temperature, and wind speed were obtained using Meteonorm software. The operating parameters of a PV module includes normal operation cell temperature, open-circuit voltage, and short-circuit current were obtain from manufacturer data sheet. The results showed that, the exergy efficiency ranged from 10.8% to 15.8 %, while the energy efficiency varies between 15.71% to 15.74 % and the exergy destruction varied from 182.8 to 352.3 W/m2 throughout the year. It has been found that, the first law efficiency was greater than second law efficiency. The differences between the two efficiencies from January to December are (25.6%, 31.1%, 25.1%, 25.6%, 17.8%, 9.6%, 9.6%, 1.2%, 0.5%, 0.45%, 2.5%, and 14.6%) respectively. While the exergy destruction through the same 12- months are (195.4, 233.5, 304.3, 352.3, 333.8, 292.9, 309.3, 274.6, 249.8, 215.9, 187.4, and 182.8) W/m2.