Energy, Economic, and Environmental Benefits of Cooling Photovoltaic Module with L-Shaped Fins and Reflector in Zakho, Iraq

Salih, Abdulrahman Salih; Ali, Omar Mohammad

doi:10.33899/arej.2025.161131.1429

	Energy, Economic, and Environmental Benefits of Cooling Photovoltaic Module with L-Shaped Fins and Reflector in Zakho, Iraq
Al-Rafidain Engineering Journal (AREJ)
Articles in Press, Accepted Manuscript, Available Online from 21 October 2025 PDF (1.39 M)
Document Type: Research Paper
DOI: 10.33899/arej.2025.161131.1429
Authors
Abdulrahman Salih Salih^* ; Omar Mohammad Ali
Mechanical Engineering Department, College of Engineering, University of Zakho, Zakho, Iraq
Abstract
Solar energy is a renewable resource; however, high operating temperatures reduce photovoltaic (PV) performance. This study examines passive cooling and reflective enhancements on PV systems in Zakho, Iraq, during winter. Experiments were conducted on February 24 and 27 using two modified PV designs. While in Scenario I, L-shaped aluminum fins were attached to a PV module and compared with a reference panel. Scenario II combined fins with an aluminum reflector to increase the amount of incident solar radiation. Results showed notable performance gains. In Scenario I, power output rose by 14.2%, with peak efficiency improving from 10% (reference) to 12%. Scenario II achieved a 17.5% increase in power, with efficiency reaching 16.5% compared to 14% for the benchmark. Temperature decreases of 15.3°C (Scenario I) and 13°C (Scenario II) confirmed the effectiveness of passive cooling. An examination of life cycle costs (LCC) indicated reduced energy expenditures: $0.053/kWh for the reference scenario, down to $0.048/kWh with fins, and further lowered to $0.044/kWh with fins combined with a reflector. The payback periods have been decreased to 6.5, 5.9, and 5.5 years for reference, fins, and combined fins with reflector systems, respectively. The environmental analysis revealed yearly CO₂ emission reductions of 4.62, 5.25, and 5.93 tCO₂/year for reference, fins, and combined fins with reflector systems, respectively. Overall, integrating cooling fins and reflectors significantly improved PV performance, reduced energy costs, and enhanced environmental sustainability. This approach offers a practical and low-cost strategy to boost solar energy utilization in regions with similar climatic conditions.
Keywords
Solar energy; Passive cooling technique; Reflector; Economic analysis; Environment performance

References
[1] S. A. Zubeer and O. M. Ali, “Performance analysis and electrical production of photovoltaic modules using active cooling system and reflectors,” Ain shams Eng. J., vol. 12, no. 2, pp. 2009–2016, 2021. https://doi.org/10.1016/j.asej.2020.09.022 [2] H. Tabaei and M. Ameri, “Improving the effectiveness of a photovoltaic water pumping system by using booster reflector and cooling array surface by a film of water,” Iran. J. Sci. Technol. Trans. Mech. Eng., vol. 39, no. M1, pp. 51–60, 2015. https://doi.org/10.22099/ijstm.2015.2948 [3] S. A. Zubeer and O. M. Ali, “Experimental and numerical study of low concentration and water-cooling effect on PV module performance,” Case Stud. Therm. Eng., vol. 34, no. April, p. 102007, 2022, https://doi.org/10.1016/j.csite.2022.102007 [4] M. Ozgoren, M. H. Aksoy, C. Bakir, and S. Dogan, “Experimental performance investigation of photovoltaic/thermal (PV–T) system,” in EPJ Web of conferences, EDP Sciences, 2013, p. 1106. https://doi.org/10.1051/epjconf/20134501106 [5] Z. Zhou, A. Gentle, M. Mohsenzadeh, Y. Jiang, M. Keevers, and M. Green, “Long-term outdoor testing of vortex generators for passive PV module cooling,” Sol. Energy, vol. 275, p. 112610, 2024. https://doi.org/10.1016/j.solener.2024.112610 [6] M. Hamdan, E. Abdelhafez, A. Al Aboushi, A. Othman, S. Al-Saleh, and S. Ajib, “Enhancing PV modules perfor-mance using L-shaped aluminum fins,” Int. Rev. Mech. Eng., vol. 17, no. 2, p. 48, 2023.https://doi.org/10.15866/ireme.v17i2.22782 [7] A. A. Farhan and D. J. Hasan, “An experimental investigation to augment the efficiency of photovoltaic panels by using longitudinal fins,” Heat Transf., vol. 50, no. 2, pp. 1748–1757, 2021. https://doi.org/10.1002/htj.21951 [8] L. R. Bernardo, B. Perers, H. Håkansson, and B. Karlsson, “Performance evaluation of low concentrating photovoltaic/thermal systems: A case study from Sweden,” Sol. Energy, vol. 85, no. 7, pp. 1499–1510, 2011, doi: 10.1016/j.solener.2011.04.006. DOI:10.1016/j.solener.2011.04.006 [9] H. Tabor, “Stationary mirror systems for solar collectors,” Sol. Energy, vol. 2, no. 3–4, pp. 27–33, 1958. https://doi.org/10.1016/0038-092X(58)90051-3 [10] Krstic, M., Pantic, L., Djordjevic, S., Radonjic, I., Begovic, V., Radovanovic, B., & Mancic, M. (2024). Passive cooling of photovoltaic panel by aluminum heat sinks and numerical simulation. Ain Shams Engineering Journal, Vol.15 No.1, 102330. https://doi.org/10.1016/j.asej.2023.102330 [11] Z. Zhao, L. Zhu, Y. Wang, Q. Huang, and Y. Sun, “Experimental investigation of the performance of an air type photovoltaic thermal collector system with fixed cooling fins,” Energy Reports, vol. 9, pp. 93–100, 2023. https://doi.org/10.1016/j.egyr.2023.02.059 [12] S. PraveenKumar, E. B. Agyekum, V. I. Velkin, S. J. Yaqoob, and T. S. Adebayo, “Thermal management of solar photovoltaic module to enhance output performance: An experimental passive cooling approach using discontinuous aluminum heat sink,” Int. J. Renew. Energy Res, vol. 11, pp. 1700–1712, 2021. https://doi.org/10.20508/ijrer.v11i4.12468.g8323 [13] P. Malik and S. S. Chandel, “Performance enhancement of multi-crystalline silicon photovoltaic modules using mirror reflectors under Western Himalayan climatic conditions,” Renew. Energy, vol. 154, pp. 966–975, 2020. https://doi.org/10.1016/j.renene.2020.03.048 [14] A. M. Elbreki, A. F. Muftah, K. Sopian, H. Jarimi, A. Fazlizan, and A. Ibrahim, “Experimental and economic analysis of passive cooling PV module using fins and planar reflector,” Case Stud. Therm. Eng., vol. 23, p. 100801, 2021. https://doi.org/10.1016/j.csite.2020.100801 [15] A. E. Kabeel, M. Abdelgaied, and R. Sathyamurthy, “A comprehensive investigation of the optimization cooling technique for improving the performance of PV module with reflectors under Egyptian conditions,” Sol. Energy, vol. 186, pp. 257–263, 2019. https://doi.org/10.1016/j.solener.2019.05.019 [16] O. R. Alomar, O. M. Ali, B. M. Ali, V. S. Qader, and O. M. Ali, “Energy, exergy, economical and environmental analysis of photovoltaic solar panel for fixed, single and dual axis tracking systems: An experimental and theoretical study,” Case Stud. Therm. Eng., vol. 51, p. 103635, 2023.https://doi.org/10.1016/j.csite.2023.103635 [17] A. F. Almarshoud, “Technical and economic performance of 1MW grid-connected PV system in Saudi Arabia,” Int. J. Eng. Res. Appl, vol. 7, no. 04, p. 82017, 2017. DOI: 10.9790/9622-0704010917 [18] M. Grech, L. Mule’Stagno, and C. Yousif, “Increasing PV module output with flat reflectors–a scenario in Malta,” in Proceedings of the International Conference on Renewable Energies and Power Quality (ICREPQ’13), Bilbao, Spain, Mar. 2013. [Online]. Available: https://www.um.edu.mt/library/oar/handle/123456789/23394 [19] B. Cruey, J. King, and B. Tingleff, “Cooling of Photovoltaic Cells,” Change, vol. 36, 2006. [20] F. Bayrak, H. F. Oztop, and F. Selimefendigil, “Effects of different fin parameters on temperature and efficiency for cooling of photovoltaic panels under natural convection,” Sol. Energy, vol. 188, pp. 484–494, 2019. https://doi.org/10.1016/j.solener.2019.06.036 [21] U. Sajjad, M. Amer, H. M. Ali, A. Dahiya, and N. Abbas, “Cost effective cooling of photovoltaic modules to improve efficiency,” Case Stud. Therm. Eng., vol. 14, no. March, p. 100420, 2019, doi: 10.1016/j.csite.2019.100420. https://doi.org/10.1016/j.csite.2019.100420 [22] A. Risdiyanto, A. A. Kristi, B. Susanto, N. A. Rachman, A. Junaedi, and E. W. Mukti, “Implementation of Photovoltaic Water Spray Cooling System and Its Feasibility Analysis,” in 2020 International Conference on Sustainable Energy Engineering and Application (ICSEEA), IEEE, 2020, pp. 88–93. DOI: 10.1109/ICSEEA50711.2020.9306133 [23] I. S. Radonjić, T. M. Pavlović, D. L. Mirjanić, M. K. Radović, D. D. Milosavljević, and L. S. Pantić, “Investigation of the impact of atmospheric pollutants on solar module energy efficiency,” Therm. Sci., vol. 21, no. 5, pp. 2021–2030, 2017, doi: 10.2298/tsci160408176r. [24] J. P. Holman, “Experimental methods for engineers eighth edition,” 2021. [25] A. K. Abu, I. Muslih, and M. A. Barghash, “Life Cycle Costing of PV Generation System,” J. Appl. Res. Ind. Eng., vol. 4, no. 3, pp. 185–191, 2020, doi: 10.22105/jarie.2017.54724. [26] K. Branker, M. J. M. Pathak, and J. M. Pearce, “A review of solar photovoltaic levelized cost of electricity,” Renew. Sustain. energy Rev., vol. 15, no. 9, pp. 4470–4482, 2011.https://doi.org/10.1016/j.rser.2011.07.104 [27] O. R. Alomar, N. M. Basher, O. M. Ali, A. Salih, N. M. Abdulrazzaq, and S. M. Samad, “Energetic, Economic Environmental Analysis for Photovoltaic Grid-Connected Systems under Different Climate Conditions in Iraq,” Clean. Energy Syst., p 100180, 2025. https://doi.org/10.1016/j.cles.2025.100180 [28] A. S. Alghamdi, “Performance enhancement of roof-mounted photovoltaic system: artificial neural network optimization of ground coverage ratio,” Energies, vol. 14, no. 6, p. 1537, 2021.https://doi.org/10.3390/en14061537 [29] O. M. Ali and O. R. Alomar, “Technical and economic feasibility analysis of a PV grid-connected system installed on a university campus in Iraq,” Environ. Sci. Pollut. Res., vol. 30, no. 6, pp. 15145–15157, 2023. DOI:10.1007/s11356-022-23199-y [30] A. A. Imam, Y. A. Al-Turki, and R. Sreerama Kumar, “Techno-economic feasibility assessment of grid-connected PV systems for residential buildings in Saudi Arabia-A case study,” Sustain., vol. 12, no. 1, 2020, doi: 10.3390/su12010262. https://doi.org/10.3390/su12010262 [31] A. Audenaert, L. De Boeck, S. De Cleyn, S. Lizin, and J. F. Adam, “An economic evaluation of photovoltaic grid connected systems (PVGCS) in Flanders for companies: A generic model,” Renew. Energy, vol. 35, no. 12, pp. 2674–2682, 2010, doi: 10.1016/j.renene.2010.04.013. https://doi.org/10.1016/j.renene.2010.04.013 [32] A. A. Imam and Y. A. Al-Turki, “Techno-economic feasibility assessment of grid-connected PV systems for residential buildings in Saudi Arabia—A case study,” Sustainability, vol. 12, no. 1, p. 262, 2019. https://doi.org/10.3390/su12010262 [33] N. A. M. Amir, N. Y. Dahlan, W. N. A. W. Abdullah, Z. M. D. Zain, and H. Mohamad, “Energy saving analysis of a 16kWp grid connected photovoltaic (PV) system at Green Energy Research Centre (GERC), UiTM Shah Alam,” in 2014 IEEE 8th International Power Engineering and Optimization Conference (PEOCO2014), IEEE, 2014, pp. 390–395. DOI: 10.1109/PEOCO.2014.6814460 [34] V. M. Fthenakis and H. C. Kim, “Photovoltaics: Life-cycle analyses,” Sol. Energy, vol. 85, no. 8, pp. 1609–1628, 2011.https://doi.org/10.1016/j.solener.2009.10.002 [35] A. M. A. Soliman, H. Hassan, and S. Ookawara, “An experimental study of the performance of the solar cell with heat sink cooling system,” Energy Procedia, vol. 162, pp. 127–135, 2019, doi: 10.1016/j.egypro.2019.04.014.https://doi.org/10.1016/j.egypro.2019.04.014 [36] I. A. Hasan, “Enhancement the performance of PV panel by using fins as heat sink,” Eng. Technol. J., vol. 36, no. 7A, pp. 798–805, 2018. DOI: http://dx.doi.org/10.30684/etj.36.7A.13 [37] U. Akyol, D. Akal, and A. Durak, “Estimation of power output and thermodynamic analysis of standard and finned photovoltaic panels,” Energy Sources, Part A Recover. Util. Environ. Eff., vol. 45, no. 3, pp. 8438–8457, 2023. https://doi.org/10.1080/15567036.2021.1928337
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