Abstract
Silicon-based photovoltaic (PV) panels are sensitive to operating temperatures, especially during exposure to high solar irradiation levels. The sensitivity of PV panels is reflected through the reductions in photovoltaic energy conversion efficiency (electrical efficiency) and in PV panel lifetime due to thermal fatigue. In this study, different and novel passive cooling strategies were proposed and numerically investigated for the case of 50-W market-available free-standing silicon PV panels. The focus of the research was to examine the effect of the proposed modifications on the temperatures of the specific PV panel layers as well as on the velocity contours. The used numerical model was upgraded based on a previously developed numerical model that was validated through an experimental manner. Three different passive cooling scenarios were numerically investigated, and the most promising one was the case where the PV panel was provided with slits through the front PV panel surface resulting in a reduction of about 4 °C for the PV panel operating temperature. The other examined cases proved to be less effective with the detected temperature reduction being less than 1.0 °C. The consideration of novel PV panel frame materials was found to be a viable possibility. It was also found that all the proposed modifications can generally lead to the performance improvement in the PV panels and reduce the materials spent on the production of commercial PV panels.
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Abbreviations
- E :
-
Specific total internal energy
- f i :
-
Specific body force
- h :
-
Enthalpy
- k’ :
-
Turbulence kinetic energy
- k :
-
Thermal conductivity
- k t :
-
Thermal conductivity due to turbulence
- k eff :
-
Effective thermal conductivity
- p :
-
Mean flow pressure
- Q:
-
Equivalent PV cell heat source
- R ij :
-
Reynolds stress tensor
- S h :
-
Volumetric heat source
- T :
-
Time
- T :
-
Temperature
- \(\bar{u}_{\rm i}\) :
-
Mean flow velocity in the ith Cartesian direction
- V :
-
Wind velocity
- x i :
-
Cartesian coordinate
- μ:
-
Molecular viscosity
- μt :
-
Turbulent viscosity
- ρ :
-
Mean flow density
References
Nižetić S, Djilali N, Papadopoulos A, Rodrigues JPCJ. Smart technologies for promotion of energy efficiency, utilization of sustainable resources and waste management. J Clean Prod. 2019;231:565–91.
Nižetić S. An atmospheric gravitational vortex as a flow object: improvement of the three-layer model. Geofizika. 2010;27(1):1–20.
Web source: www.ren21.net/wp-content/uploads/2018/06/17-8652_GSR2018_FullReport_web_final_.pdf. Accessed 24 May 2019.
Web source: www.pv-magazine.com/2019/04/02/global-cumulative-pv-capacity-tops-480-gw-irena-says/. Accessed 24 May 2019.
Web source: https://unfccc.int/process-and-meetings/the-paris-agreement/the-paris-agreement. Accessed 25 May 2019.
Web source: www.ise.fraunhofer.de/content/dam/ise/de/documents/publications/studies/Photovoltaics-Report.pdf. Accessed 25 May 2019.
Ali N, Rauf S, Kong W, Ali S, Wang X, Khesro A, Yang CP, Zhu B, Wu H. An overview of the decompositions in organo-metal halide perovskites and shielding with 2-dimensional perovskites. Renew Sustain Energy Rev. 2019;109:160–86.
Djurišić AB, Liu FZ, Tam HW, Wong MK, Ng A, Surya C, Chena W, He ZB. Perovskite solar cells—an overview of critical issues. Prog Quantum Electron. 2017;53:1–37.
Song Z, Chad L, McElvany A, Phillips B, Celik I, Krantz PW, Suneth C, Watthage GK, Liyanage DA, Heben MJ. A technoeconomic analysis of perovskite solar module manufacturing with low-cost materials and techniques. Energy Environ Sci. 2017;106:1297–305.
Royo P, Ferreira VJ, Lopez-Sabiron AM, Ferreira G. Hybrid diagnosis to characterize the energy and environmental enhancement of photovoltaic modules using smart materials. Energy. 2016;101:174–89.
Nižetić S, Giama E, Papadopoulos AM. Comprehensive analysis and general economic-environmental evaluation of cooling techniques for photovoltaic panels, Part II: active cooling techniques. Energy Convers Manag. 2018;155:301–23.
Nižetić S, Papadopoulos AM, Giama E. Comprehensive analysis and general economic-environmental evaluation of cooling techniques for photovoltaic panels, Part I: passive cooling techniques. Energy Convers Manag. 2017;149:334–54.
Kumar A, Chowdhury A. Reassessment of different antireflection coatings for crystalline silicon solar cell in view of their passive radiative cooling properties. Sol Energy. 2019;182:410–8.
Rodrigo PM, Valera A, Fernández EF, Almonacid FM. Performance and economic limits of passively cooled hybrid thermoelectric generator-concentrator photovoltaic modules. Appl Energy. 2019;238:1150–62.
Grubišić-Čabo F, Nižetić S, Marinić Kragić I, Čoko D. Further progress in the research of fin-based passive cooling technique for the free-standing silicon photovoltaic panels. Int J Energy Res. 2019. https://doi.org/10.1002/er.4489.
Grubišić-Čabo F, Nižetić S, Čoko D, Marinić Kragić I, Papadopoulos A. Experimental investigation of the passive cooled free-standing photovoltaic panel with fixed aluminum fins on the backside surface. J Clean Prod. 2018;176:119–29.
Valera A, Fernández EF, Rodrigo PM, Almonacid F. Feasibility of flat-plate heat-sinks using microscale solar cells up to 10,000 suns concentrations. Sol Energy. 2019;181:361–71.
Shittu S, Li G, Zhao X, Akhlaghi YG, Ma X, Yu M. Comparative study of a concentrated photovoltaic-thermoelectric system with and without flat plate heat pipe. Energy Convers Manag. 2019;193:1–14.
Emam M, Ookawara S, Ahmed M. Thermal management of electronic devices and concentrator photovoltaic systems using phase change material heat sinks: experimental investigations. Renew Energy. 2019;141:322–39.
Sato D, Yamada N. Review of photovoltaic module cooling methods and performance evaluation of the radiative cooling method. Renew Sustain Energy Rev. 2019;104:151–66.
Zhang T, Yang H. Flow and heat transfer characteristics of natural convection in vertical air channels of double-skin solar façades. Appl Energy. 2019;242:107–20.
Gilmore N, Timchenko V, Menictas C. Microchannel cooling of concentrator photovoltaics: a review. Renew Sustain Energy Rev. 2018;90:1041–59.
Athienitis AK, Barone G, Buonomano A, Palombo A. Assessing active and passive effects of façade building integrated photovoltaics/thermal systems: dynamic modelling and simulation. Appl Energy. 2018;209:355–82.
Abd-Elhadya MS, Seragb Z, Kandilc HA. An innovative solution to the overheating problem of PV panels. Energy Convers Manag. 2018;157:452–9.
Sharma S, Micheli L, Chang W, Tahir AA, Reddy KS, Mallick TK. Nano-enhanced Phase Change Material for thermal management of BICPV. Appl Energy. 2017;208:719–33.
Nižetić S, Grubišić-Čabo F, Marinić-Kragić I, Papadopoulos AM. Experimental and numerical investigation of a backside convective cooling mechanism on photovoltaic panels. Energy. 2016;111:211–25.
Marinić-Kragić I, Nižetić S, Grubišić-Čabo F, Papadopoulos AM. Analysis of flow separation effect in the case of the free-standing photovoltaic panel exposed to various operating conditions. J Clean Prod. 2018;174:53–64.
Hemmer C, Saad AA, Popa CV, Polidori G. Early development of unsteadyconvective laminar flow in an inclined channel using CFD: application to PV panels. Sol Energy. 2017;146:221–9.
Zhu L, Raman A, Wang KX, Anoma MA, Fan S. Radiative cooling of solar cells. Optica. 2014;1(1):32.
Wilson MJ, Paul MC. Effect of mounting geometry on convection occurring under a photovoltaic panel and the corresponding efficiency using CFD. Sol Energy. 2011;85(10):2540–50.
Zhang R, Mirzaei PA, Carmeliet J. Prediction of the surface temperature of building-integrated photovoltaics: development of a high accuracy correlation using computational fluid dynamics. Sol Energy. 2017;147:151–63.
Popovici CG, Hudişteanu SV, Mateescu TD, Cherecheş N-C. Efficiency improvement of photovoltaic panels by using air cooled heat sinks. Energy Proced. 2016;85:425–32.
Menter F. Zonal two equation k-w turbulence models for aerodynamic flows, In: 23rd fluid dynamics, plasmadynamics, and lasers conference. American Institute of Aeronautics and Astronautics. Reston; 1993. p. 2906.
Raval HD, Maiti S, Mittal A. Computational fluid dynamics analysis and experimental validation of improvement in overall energy efficiency of a solar photovoltaic panel by thermal energy recovery. J Renew Sustain Energy. 2014;6:033138.
Jubayer CM, Siddiqui K, Hangan H. CFD analysis of convective heat transfer from ground mounted solar panels. Sol Energy. 2016;133:556–66.
Acknowledgements
This work was funded by the Croatian science foundation (Research project: Smart and hybrid cooling techniques for siliceous photovoltaic panels-IP-01-2018-2814).
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Nižetić, S., Marinić-Kragić, I., Grubišić-Čabo, F. et al. Analysis of novel passive cooling strategies for free-standing silicon photovoltaic panels. J Therm Anal Calorim 141, 163–175 (2020). https://doi.org/10.1007/s10973-020-09410-7
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DOI: https://doi.org/10.1007/s10973-020-09410-7