Experimental Assessment and Modeling of a Floating Photovoltaic Module with Heat Bridges



Floating PV Module, Passive Cooling, Thermal electrical performance


Photovoltaic (PV) modules convert part of solar radiation into electrical energy. Another fraction of the incident energy causes an increase of the PV module operating temperature, leading to an electrical performance reduction. In the present paper is proposed the passive cooling of a floating PV (FPV) module using 5 fixed heat bridges to reduce the operating temperature and increase the energy conversion efficiency. The modeling developed for a FPV module operating temperature with heat bridges predicts the cooling capacity of the plant. The proposed model is nonlinear algebraic and equations require iterative numerical solution. Experimental tests allowed to compare thermal and electrical behavior of a FPV module and a rooftop (conventional) PV module, both in Fortaleza, Brazil. The FPV module temperature was 3.2°C lower than the conventional module temperature, on average. The model developed for FPV module with heat bridges may predict its operating temperature with error around 5%. According to the measurements, the FPV module productivity was 26.1% higher than conventional PV module productivity, on average. Thus, the modeling developed is in condition to predict the thermal behavior and prove the effectiveness of passive cooling.


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Author Biographies

Bruna de Oliveira Busson, Federal University of Santa Catarina

Bruna de Oliveira Busson is graduated in Mechanical Engineering at UnB, Brasília, DF, Brazil (2016). MSc. in Mechanical Engineering at UFC, Fortaleza, CE, Brazil (2019). She is currently pursuing the Ph.D. degree in Mechanical Engineering at UFSC, Florianópolis, SC, Brazil.

Leticia de Oliveira Santos, Universidade Federal do Ceará

Leticia de Oliveira Santos Master’s student in Mechanical Engineering at UFC, Fortaleza, CE, Brazil. She completed her Physics degree at UFC (2017). She is currently part of the UFC’s Laboratory of Alternative Energies (Laboratório de Energias Alternativas - LEA), working with computer modelling of photovoltaic panels.

Paulo Cesar Marques de Carvalho, Universidade Federal do Ceará

Paulo Cesar Marques de Carvalho is graduated in Eletrical Engineering at UFC, Fortaleza, CE, Brazil (1989); MSc. in Eletrical Engineering at UFPB, Campina Grande, PB, Brazil (1992); Ph.D. in Eletrical Engineering at University of Paderborn, Paderborn, Germany (1997). Currently, he is full professor at Electrical Engineering Department at UFC and receives a CNPq research productivity grant.

Clodoaldo de Oliveira Carvalho Filho, Universidade Federal do Ceará

Clodoaldo de Oliveira Carvalho Filho is graduated in Mechanical Engineering at UFC, Fortaleza, Ceará, Brazil (1995); MSc. in Mechanical Engineering at UFSC, Florianópolis, Santa Catarina, Brazil (1998); Ph.D. in Petroleum Sciences and Engineering at UNICAMP, Campinas, SP, Brazil (2004). At present, he is professor at Mechanical Engineering Department at UFC.


L. C. Lima, L. A. Ferreira, and F. H. B. L. Morais, “Performance analysis of a grid connected photovoltaic system in northeastern Brazil,” Energy for Sustainable Development, vol. 37, pp. 79–85, 2017.

International Energy Agency, Key World Energy Statistics 2019. Paris, France: IEA, 2019.

Oil Change International, “Numerous heads of state, ministers, and other prominent figures have spoke out on the need to phase out fossil fuel subsidies. a small sampling is found below. . . .” priceofoil.org.priceofoil.org/fossil-fuel-subsidies/international/key-quotes/ (accessed Jul. 28, 2020).

D. Araujo, N. Batista, P. Carvalho, J. Reges, D. Costa, R. Dias, D. Freitas, S. Lima, K. Ramos, S. Ribeiro, and F. Soares, “Renewable hybrid systems: Characterization and tendencies,” IEEE Latin America Transactions, vol. 18, no. 01, pp. 102–112, 2020.

H. Villarroel-Gutiérrez, “The argentine electrical sector and its trends toward renewable energies,” IEEE Latin America Transactions, vol. 17, no. 10, pp. 1625–1636, 2019.

R. Cazzaniga, M. Cicu, M. Rosa-Clot, P. Rosa-Clot, G. Tina, and C. Ventura, “Floating photovoltaic plants: Performance analysis and design solutions,” Renewable and Sustainable Energy Reviews, vol. 81, pp. 1730–1741, 2018.

J. Siecker, K. Kusakana, and B. Numbi, “A review of solar photovoltaic systems cooling technologies,” Renewable and Sustainable Energy Reviews, vol. 79, pp. 192–203, 2017.

P. Benalcázar, J. Lara, and M. Samper, “Distributed Photovoltaic Generation in Ecuador: Economic Analysis and Incentives Mechanisms,”IEEE Latin America Transactions, vol. 18, no. 03, pp. 564–572, 2020.

S. Preet, “Water and phase change material based photovoltaic thermal management systems: A review,” Renewable and Sustainable Energy Reviews, vol. 82, pp. 791–807, 2018.

F. Huide, Z. Xuxin, M. Lei, Z. Tao, W. Qixing, and S. Hongyuan, “A comparative study on three types of solar utilization technologies for buildings: Photovoltaic, solar thermal and hybrid photovoltaic/thermal systems,” Energy Conversion and Management, vol. 140, pp. 1–13, 2017.

N. Dimri, A. Tiwari, and G. Tiwari, “Thermal modelling of semitransparent photovoltaic thermal (PVT) with thermoelectric cooler (TEC) collector,” Energy Conversion and Management, vol. 146, pp. 68–77, 2017.

E. Skoplaki and J. A. Palyvos, “Operating temperature of photovoltaic modules: A survey of pertinent correlations,” Renewable Energy, vol. 34, no. 1, pp. 23–29, 2009.

J. T. Pinho and M. A. Galdino, Manual de engenharia para sistemas fotovoltaicos, (2014). Rio de Janeiro, RJ, Brasil, vol. 1, pp. 47–499.

J. A. Duffie and W. A. Beckman, Solar Engineering of Thermal Processes, 4th Ed., vol. 10. Hoboken, NJ: John Wiley & Sons, Inc, doi, 2013.

V. J. Fesharaki, M. Dehghani, J. J. Fesharaki, and H. Tavasoli, “The effect of temperature on photovoltaic cell efficiency,” in Proceedings of the 1st International Conference on Emerging Trends in Energy Conservation–ETEC, (Tehran, Iran), pp. 20–21, 2011.

S. Odeh and M. Behnia, “Improving photovoltaic module efficiency using water cooling,” Heat Transfer Engineering Journal, vol. 30, no. 6, pp. 499–505, 2009.

K. A. Moharram, M. Abd-Elhady, H. Kandil, and H. El-Sherif, “Enhancing the performance of photovoltaic panels by water cooling,” Ain Shams Engineering Journal, vol. 4, no. 4, pp. 869–877, 2013.

I. Guarracino, A. Mellor, N. J. Ekins-Daukes, and C. N. Markides, “Dynamic coupled thermal-and-electrical modelling of sheet-and-tube hybrid photovoltaic/thermal (PVT) collectors,” Applied Thermal Engineering, vol. 101, pp. 778–795, 2016.

N. M. Martins da Rocha, L. Lapolli Brighenti, J. César Passos, and D. Cruz Martins, “Photovoltaic Cell Cooling as a Facilitator for MPPT,” IEEE Latin America Transactions, vol. 17, no. 10, pp. 1569–1577, 2019.

D. Sato and N. Yamada, “Review of photovoltaic module cooling methods and performance evaluation of the radiative cooling method,”Renewable and Sustainable Energy Reviews, vol. 104, pp. 151–166, 2019.

A. M. Ahmed and S. Hassan Danook, “Efficiency improvement for solar cells panels by cooling,” in 2018 2nd International Conference for Engineering, Technology and Sciences of Al-Kitab (ICETS), pp. 39–42, 2018.

M. K. Ye¸silyurt, M. Nasiri, and A. N. Ozakin, “Techniques for enhancing and maintaining electrical efficiency of photovoltaic systems,” International Journal of New Technology and Research, vol. 4, no. 4, 2018.

P. K. Enaganti, S. Nambi, H. K. Behera, P. K. Dwivedi, S. Kundu, M. Imamuddin, A. K. Srivastava, and S. Goel, “Performance analysis of submerged polycrystalline photovoltaic cell in varying water conditions,”IEEE Journal of Photovoltaics, vol. 10, no. 2, pp. 531–538, 2020.

E. M. Sacramento, Modelo elétrico-térmico para representar o comportamento de módulos fotovoltaicos flutuantes em água a partir das condições climáticas do semiárido brasileiro. Ph.D. dissertation, Eng. Dept., Univ. Fed. CE, Fortaleza, CE, Brazil., 2015.

H. Liu, A. Kumar, and T. Reindl, “The dawn of floating solar — technology, benefits, and challenges,” in Wang C., Lim S., Tay Z. (eds) WCFS2019. Lecture Notes in Civil Engineering, vol. 41, pp. 373–383, Singapore: Springer Singapore, 2020.

P. M. Connor, “Performance and prospects of a lightweight water-borne pv concentrator, including virtual storage via hydroelectric-dams,” in ISES Solar World Congress. Renewable Energy Shaping Our Future., (South Africa: Johannesburg), 2009.

A. Sahu, N. Yadav, and K. Sudhakar, “Floating photovoltaic power plant: A review, ”Renewable and Sustainable Energy Reviews, vol. 66, pp. 815–824, 2016.

M. Rosa-Clot and G. M. Tina, “Chapter 5 - The floating PV plant,” in Submerged and Floating Photovoltaic Systems, pp. 89 – 136, Academic Press, 2018.

D. Mittal, B. K. Saxena, and K. Rao, “Floating solar photovoltaic systems: An overview and their feasibility at Kota in Rajasthan,” in 2017 International Conference on Circuit, Power and Computing Technologies (ICCPCT), pp. 1–7, IEEE, 2017.

L. Liu, Q. Wang, H. Lin, H. Li, Q. Sun, et al., “Power generation efficiency and prospects of floating photovoltaic systems,” Energy Procedia, vol. 105, pp. 1136–1142, 2017.

H. M. Pouran, “From collapsed coal mines to floating solar farms, why China’s new power stations matter,” Energy Policy, vol. 123, pp. 414–420, 2018.

Y.-K. Choi, “A study on power generation analysis of floating pv system considering environmental impact,” International Journal of Software Engineering and its Applications, vol. 8, no. 1, pp. 75–84, 2014.

R. A. Borba and L. H. Novak, “Sistemas fotovoltaicos flutuantes: Aspectos positivos e desafios,” in Anais VII Congresso Brasileiro de Energia Solar, p. 7, 2018.

K. Trapani and M. Redón-Santafé, “A review of floating photovoltaic installations: 2007–2013,” Progress in Photovoltaics: Research and Applications, vol. 23, no. 4, pp. 524–532, 2015.

M. A. E. Galdino and M. M. d. A. Olivieri, “Some remarks about the deployment of floating PV systems in Brazil,” Journal of Electrical Engineering, vol. 1, pp. 10–19, 2017.

A. A. R. Alencar Filho, Avaliação da influência da temperatura na eficiência de módulo fotovoltaico sobre estrutura flutuante. M.S. thesis, Dept. Mec. Eng., Univ. Fed. CE, Fortaleza, CE, Brazil, 2018.

H. Mohring, D. Stellbogen, R. Schäffler, et al., “Outdoor performance of polycrystalline thin film pv modules in different european climates,” in Proceedings of the 19th European Photovoltaic Solar Energy Conference, pp. 2098–2101, 2004.

W. C. L. Kamuyu, J. R. Lim, C. S. Won, and H. K. Ahn, “Prediction model of photovoltaic module temperature for power performance of floating PVs,” Energies, vol. 11, no. 2, p. 447, 2018. doi:10.3390/en11020447.

A. C. Andrade, Análise e simulação da distribuição de temperaturas em módulos fotovoltaicos. Ph.D. dissertation, PPG Eng. Mec., Univ. Fed. RS., RS, Brazil, 2008.

S. C. S. Jucá, R. I. S. Pereira, and P. C. M. Carvalho, “Wifi data acquisition system applied to a photovoltaic powered water pumping plant,” Sensors & Transducers, vol. 185, no. 2, pp. 113–120, 2015.

Fundação Cearence de Meteorologia e Recursos Hídricos, “Gráfico de chuvas dos postos pluviométricos.” FUNCEME.br. http://www.funceme.br/index.php/areas/23-monitoramento/meteorol%C3%B3gico/548-gr%C3%A1fico-de-chuvas-dos-postos-pluviom%C3%A9tricos (accessed Jul. 20, 2020).

LibreOffice, “Libreoffice calc. 2018.” libreoffice.org.https://pt-br.libreoffice.org/descubra/calc/ (accessed Nov. 19, 2018).

C. H. B. Apribowo and A. Habibie, “Experimental method for improving efficiency on photovoltaic cell using passive cooling and floating method,” in 2019 6th International Conference on Electric Vehicular Technology (ICEVT), pp. 272–275, 2019.



How to Cite

Busson, B. de O., Santos, L. . de O., Carvalho, P. C. M. de, & Carvalho Filho, C. de O. (2021). Experimental Assessment and Modeling of a Floating Photovoltaic Module with Heat Bridges. IEEE Latin America Transactions, 19(12), 2079–2086. Retrieved from https://latamt.ieeer9.org/index.php/transactions/article/view/5104