Experimental investigation of photovoltaic panel surface temperatures and electricity production in summer

Öz

Due to the efficiency drops in solar panels at temperatures above 25°C, various panel surface temperature reduction studies are ongoing. In this field, panel passive cooling methods can be seen as the latest technology in that they do not require additional electricity. It is extremely important to know the surface temperatures of photovoltaic panels regionally and seasonally to choose the appropriate melting/freezing points for phase change materials. Within the scope of this study, instantaneous panel surface temperatures in August were evaluated to present the panel temperature value of the summer months in Bingöl. Along with panel surface temperature values, instantaneous voltage, current, power, and efficiency results were also evaluated. According to the temperature measurement results made with thermocouples, the average and local maximum temperature on the front surface of the panel was 55℃, and 65℃ respectively. On the other hand, according to the thermal camera measurement, it was understood that there was no homogeneous temperature distribution throughout the panel and the temperature value increased to 85℃ in some local areas. It has been understood that this temperature value is far from the panel operating conditions, therefore it is essential to cool the panels with appropriate phase change materials.

Anahtar Kelimeler

• photovoltaic panel
• electricity
• temperature
• PCM

Kaynakça

1. Tyagi VV, Rahim NA, Rahim NA, Jeyraj A, Selvaraj L. Progress in solar PV technology: Research and achievement. Renewable and sustainable energy reviews, 2013; 20: 443-461.
2. Sharma S, Jain KK, Sharma A. Solar cells: in research and applications a review. Materials Sciences and Applications, 2015; 6(12):1145.
3. Sun X, Dubey R, Chattopadhyay S, Khan MR, Chavali RV, Silverman, TJ, et al. A novel approach to thermal design of solar modules: Selective-spectral and radiative cooling. In 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2016; 3584-3586). IEEE.
4. Sudhakar P, Kumaresan G, Velraj R. Experimental analysis of solar photovoltaic unit integrated with free cool thermal energy storage system. Solar Energy, 2017; 158: 837-844.
5. Makki A, Omer S, Sabir H. Advancements in hybrid photovoltaic systems for enhanced solar cell performance. Renewable and sustainable energy reviews, 2015; 41: 658-684.
6. Sheik MA, Aravindan MK, Cuce E, Dasore A, Rajak U, Shaik S, et al. A comprehensive review on recent advancements in cooling of solar photovoltaic systems using phase change materials. International Journal of Low-Carbon Technologies, 2022; 17: 768-783.
7. Khanna S, Sundaram S, Reddy KS, Mallick TK. Performance analysis of perovskite and dye-sensitized solar cells under varying operating conditions and comparison with monocrystalline silicon cell. Applied Thermal Engineering, 2017; 127: 559-565.
8. Kabul A, Duran F. Isparta ilinde fotovoltaik/termal (PV/T) hibrit sistemin performansı. Tr. Doğa ve Fen Derg., 2014; 12 (2):68 -75.

9. Klugmann-Radziemska E, Wcisło-Kucharek P. Photovoltaic module temperature stabilization with the use of phase change materials. Solar Energy, 2017; 150: 538-545.
10. Luo Z, Huang Z, Xie, N, Gao X, Xu, T, Fang Y. Numerical and experimental study on temperature control of solar panels with form-stable paraffin/expanded graphite composite PCM. Energy Convers. Manage., 2017; 149: 416–423.
11. Indartono YS, Suwono A, Pratama FY. Improving photovoltaic performance by using yellow petroleum jelly as phase change material. Int. J. Low-Carbon Technol., 2016; 11 (3): 333–337.
12. Bahaidarah H, Subhan A, Gandhidasan P, Rehman S. Performance evaluation of a PV (photovoltaic) module by back surface water cooling for hot climatic conditions. Energy, 2013; 59: 445-453.
13. Kane A, Verma V, Singh B. Optimization of thermoelectric cooling technology for an active cooling of photovoltaic panel. Renewable and Sustainable Energy Reviews, 2017; 75: 1295-1305.
14. Shastry DM, Arunachala UC. Thermal management of photovoltaic module with metal matrix embedded PCM. Journal of Energy Storage, 2020; 28: 101312.
15. Yılancı A. Performance analysis of a photovoltaic panel cooled by thermoelectric effect. Journal of the Faculty of Engineering and Architecture of Gazi University, 2020; 35(2), 619-634.
16. Pathak SK, Sharma PO, Goel V, Bhattacharyya S, Aybar HŞ, Meyer JP. A detailed review on the performance of photovoltaic/thermal system using various cooling methods. Sustainable Energy Technologies and Assessments, 2022; 51: 101844.
17. Kerem A, Atik M, Bayram A. Fotovoltaik (PV) panel sisteminde yüzey soğutma işleminin elektrik üretimine etkisinin deneysel incelenmesi. International Journal of Engineering Research and Development, 2020; 12(2), 565 -578.
18. Rezvanpour M, Borooghani D, Torabi F, Pazoki M. Using CaCl2· 6H2O as a phase change material for thermo-regulation and enhancing photovoltaic panels’ conversion efficiency: Experimental study and TR-NSYS validation. Renewable Energy, 2020; 146: 1907-1921.
19. Dwivedi P, Sudhakar K, Soni A, Solomin E, Kirpichnikova I. Advanced cooling techniques of PV modules: A state of art. Case studies in thermal engineering, 2020; 21: 100674.
20. Sohani A, Cornaro C, Shahverdian MH, Pierro M, Moser D, Nižetić S & Doranehgard M H. Building integrated photovoltaic/thermal technologies in Middle Eastern and North African countries: Current trends and future perspectives. Renewable and Sustainable Energy Reviews, 2023; 182, 113370.
21. Ahmadlou LA, Najafi G, Loni R, Kasaeian A, Mamat R, Ghazali MF, et al. Experimental investigation of PV/T and thermoelectric systems using CNT/water nanofluids. Applied Thermal Engineering, 2023; 227: 120350.
22. Gürbüz H, Demirtürk S, Akçay H, Topalcı Ü. Experimental investigation on electrical power and thermal energy storage performance of a solar hybrid PV/T-PCM energy conversion system. Journal of Building Engineering, 2023;69:106271.
23. Su Y, Zhang Y, Shu L. Experimental study of using phase change material cooling in a solar tracking concentrated photovoltaic-thermal system. Solar Energy, 2018; 159: 777-785.
24. Gillott M, Jiang L, Riffat S. An investigation of thermoelectric cooling devices for small‐scale space conditioning applications in buildings. International Journal of Energy Research, 2010; 34(9): 776-786.
25. Kandry H, Ennawaoui C, El Ballouti A, Malki Z, El Jouad M, Balhamri A, et al. Optimized photovoltaic panels power using cooling system based thermoelectric materials. Materials Today: Proceedings, 2022; 66: 479-483.
26. Çulun P, Varolgüneş FK, Gonca Ö, Kılınç C. Thermal Comfort Comparison of Different Dwelling Typologies. İDEALKENT, 2022;13(38): 2677-2701.
27. GEPA [Internet] [cited 2023 March 3] Available from: https://gepa.enerji.gov.tr/MyCalculator/pages/12.aspx
28. Yıldırım E, Aktacir MA. Investigation of azimuth and tilt angle effects on building integrated photovoltaic systems. Journal of the Faculty of Engineering and Architecture of Gazi University, 2019;34(2): 609-619.
29. Işık SK, Çulun P. Experimental Investigation Of Photovoltaic Panel Performance In Bingol Province For Different Parameters. Türk Doğa ve Fen Dergisi, 2023; 12(2): 68-75.
30. Soliman AM. A numerical investigation of PVT system performance with various cooling configurations. Energies, 2023;16(7): 3052.
31. Standard IEC 60904-3, International Electrotechnical Commission, “Standard IEC 60904-3: photovoltaic devices,” Part 3: measurement principal for terrestrial photovoltaic (PV) solar devices with reference spectral irradiance data, 1987.
32. Looser R, Vivar M, Everett V. Spectral characterisation and long-term performance analysis of various commercial Heat Transfer Fluids (HTF) as Direct-Absorption Filters for CPV-T beam-splitting applications. Applied energy, 2014; 113: 1496-1511.
33. Hamada AT, Sharaf OZ, Orhan MF A novel photovoltaic/thermal (PV/T) solar collector based on a multi-functional nano-encapsulated phase-change material (nano-ePCM) dispersion. Energy Conversion and Management, 2023; 280:116797.
34. Durez, A., Sohail, M. U., Ali, M., & Khan, U. A. (2024). Thermal analysis and efficiency enhancement of solar modified PV panels through organic PCM under climate conditions of Pakistan. Mehran University Research Journal of Engineering and Technology, 43(1), 97-110.
35. Der, O., Alqahtani, A. A., Marengo, M., & Bertola, V. (2021). Characterization of polypropylene pulsating heat stripes: Effects of orientation, heat transfer fluid, and loop geometry. Applied Thermal Engineering, 184, 116304.
36. Kameswara Rao, D., Sudhakar Reddy, K., & Subba Rao, V. V. (2024). Influence on solar PV performance integrated with heat sinks and nano-enhanced phase change material. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 09544089241253149.
37. Çulun P, Kılıçkap IS, Recent Developments in Coolıng of Photovoltaıc Solar Panels, Gece Akademi, Çankaya/ANKARA, 2023; 113-136