This work aims at utilizing the paraffin wax (PCM) latent heat of fusion and calculates the effect of coupling aluminum fins with PCM, to regulate PV cells temperature for the sake of enhancing performance. Absorbing the heat energy from its surface was investigated experimentally and numerically. From the experimental results and the numerical simulation of the paraffin wax melting behavior inside a PV cell container in the back side with and without fins is seen by using of coupled PCM/Fins, which led to good distribution of temperature inside PCM as compared with using PCM only. The use of aluminum fins with PCM led to accelerate melting of PCM by 3.5 min at a depth of 2 cm and about 14 min at a depth of 3 cm compared with using PCM only. This led to more dropping in PV cell temperature compared with using PCM only. The percentage in PV cell temperature drop was about 18.3% by using PCM only and 27.8% by using coupled PCM/Fins compared with PV cell without additive materials (PCM). The improvement in the used PV cell performance with dropping in its temperature was about, 9.84% and 5.1% on maximum power and fill factor, respectively, with using PCM only, and about 14.19% and 7.37% on maximum power and fill factor, respectively with using coupled PCM/Fins, compared with using PV cell without PCM.
numerical analysis, PV cell, PCM/Fins, temperature regulation, improved performance
 Korti AIN. (2016). Numerical heat flux simulations on double pass solar collector with PCM spheres media. International J. of Air-Conditioning and Refrigeration 24: 2-15. https://doi.org/10.1142/S2010132516500103
 Jung UH, Ki, Kim JH, Peck JH, Kang CD, Choi YS. (2016). Numerical investigation on the melting of circular finned PCM system using CFD & full factorial design. J. of Mechanical Science and Technology 30(6): 2813-2826. https://doi.org/10.1007/s12206-016-0541-7.
 Huang MJ, Eames PC, Norton B. (2004). Thermal regulation of building-integrated photovoltaics using phase change materials. International J. of Heat and Mass Transfer 47: 2715-2733. https://doi.org/10.1016/j.ijheatmasstransfer.2003.11.015
 Hasan A, McCormack SJ, Huang MJ, Norton B. (2010). Evaluation of phase change materials for thermal regulation enhancement of building integrated photovoltaics. Solar Energy 84: 1601-1612. https://doi.org/10.1016/j.solener.2010.06.010
 Huang MJ. (2011). The effect of using two PCMs on the thermal regulation performance of BIPV systems. Solar Energy Materials & Solar Cells 95: 957-963. Doi:10.1016/j.solmat.2010.11.032
 Ciulla G, Brano VL, Cellura M, Franzitta V, Milone D. (2012). A finite difference model of a PV-PCM system. Energy Procedia 30: 198-206. https://doi.org/10.1016/j.egypro.2012.11.024
 Park J, Kim T, Leigh SB. (2014). Application of a phase change material to improve the electrical performance of vertical-building-added photovoltaics considering the annual weather conditions. Solar Energy 105: 561-574. https://doi.org/10.1016/j.solener.2014.04.020
 Browne MC, Norton B, McCormack SJ. (2016). Heat retention of a photovoltaic/thermal collector with PCM. Solar Energy 133: 533-548. https://doi.org/10.1016/j.solener.2016.04.024
 Jalil JM, Abdulmunem, Abdulmunem R, Abed AH. (2016). Numerical and experimental investigation of using inner longitudinal fins in a rectangular encapsulation on the PCM melting behaviors. Journal of Engineering and Sustainable Development 20(03): 139-154.
 Abdulmunem AR. (2017). Passive cooling by utilizing the combined PCM / aluminum foam matrix to improve solar panels performance: indoor investigation. The Iraqi Journal for Mechanical and Material Engineering 17(4) Dec.
 Kawtharani F, Kawtharani A, Hammoud M, Hallal A, Shaito A, Assi A, Assi I. (2017). Cooling PV modules using phase change material. IEEE, 29th International Conference on Microelectronics (ICM). https://doi.org/10.1109/ICM.2017.8268830
 Hassan A, Sarwar J, Alnoman H, Abdelbaqi S. (2017). Yearly energy performance of a photovoltaic-phase change material (PV-PCM) system in hot climate. Solar Energy 146: 417–429. https://doi.org/10.1016/j.solener.2017.01.070
 Cao, Faghri. (1989). A numerical analysis of Stefan problems for generalized multi-dimensional phase change structure using the enthalpy transformation model. J. Heat Mass Transfer 32(7): 1289-1298. https://doi.org/10.1016/0017-9310(89)90029-X
 Norton T, Delgado A, Hogan E, Grace P. (2009). Simulation of high pressure freezing processes by enthalpy method. J. Food Engineering 91: 260-268. https://doi.org/10.1016/j.jfoodeng.2008.08.031
 Cho S, Sunderland J. (1962). Heat-conduction problems with melting or freezing. J. Heat Transfer 421-425. https://doi.org/10.1115/1.3580205
 Cox CH, Raghuraman P. (1985). Design consideration for flat plat photovoltaic/thermal collectors. Solar Energy 35: 227-241. https://doi.org/10.1016/0038-092X(85)90102-1
 Hussien HA, Noman AH, Abdulmunem AR. (2015). Indoor Investigation for Improving the Hybrid Photovoltaic /Thermal System Performance Using Nanofluid (AL2O3-Water). Engineering & Technology Journal 33(Part (A).4): 889-901.
 Hussien HA, Noman AH, Abdulmunem AR. (2015). Improving of the photovoltaic/thermal system performance using water cooling technique. IOP Conference Series: Materials Science and Engineering, IOP Publishing. https://doi.org/10.1088/1757-899X/78/1/012020
 Guideline A. Guide engineering analysis of experimental data. Guideline 2-1986 (RA96).
 Duffie JA, Beckman WA. (2013). Solar engineering of thermal processes. 4th Edition by John Wiley & Sons. https://doi.org/10.1002/9781118671603
 Komolafe A, Waheed MA. (2018). Design and fabrication of a forced convection solar dryer integrated with heat storage materials. Revue des Composites et des Matériaux Avancés 42(1): 23-39. https://doi.org/10.3166/acsm.42.23-39.