International Scientific Journal

Thermal Science - Online First

online first only

Numerical model and efficiency analysis of finned staggered solar PV/T air collector

This paper introduces a novel design for a solar PV/T air collector that utilizes staggered fins. The collector features double-layer flow channels in the same direction, with the upper channel equipped with transparent wave plates, and the lower channel fitted with staggered fins. The paper includes a calculation scheme for wave plate heat balance. The numerical model of the collector is established and verified by experimental results. A numerical model is used to analyze the height combination of the upper and lower runner and the fin arrangement of the lower runner. The results indicate that, under the given environmental parameters, as the photovoltaic panel moves down, the overall air heat transfer capacity decreases. When the height combination of the upper/lower runner is 23mm/105mm, the maximum value is 53.741%. With the increase of fin spacing, the heat transfer capacity of the lower runner decreases. With the increase of thenumber of fin rows, the heat transfer capacity of the lower runner increases. When the equivalent diameter of the rectangular channel and the number of fin rows were 70mm and 3 rows, respectively, the maximum solar energy comprehensive utilization efficiency was 56.261%.
PAPER REVISED: 2023-06-21
PAPER ACCEPTED: 2023-07-26
  1. Kern, E.C., Russell, M.C., Combined photovoltaic and thermal hybrid collector systems, Proceedings, 13th IEEE Photovoltaic Specialists, Washington DC, USA, 1978, pp. 1153-1157
  2. Fterich, M., et al, Experimental parametric study of a mixed-mode forced convection solar dryer equipped with a PV/T air collector, Solar Energy, 171(2018), pp. 751-760. DOI:10.1016/j.solener.2018.06.051
  3. Rounis, E.D., et al, Multiple-inlet Building Integrated Photovoltaic/Thermal system modelling under varying wind and temperature conditions, Solar Energy, 139(2016), 1, pp. 157-170. DOI:10.1016/j.solener.2016.09.023
  4. Ahn, J.G., et al, A Study on Experimental Performance of Air-Type PV/T Collector with HRV, Energy Procedia, 78(2015), pp. 3007-3012. DOI:10.1016/j.egypro.2015.11.705
  5. Sainthiya, H., Beniwal, N.S., Different types of cooling systems used in photovoltaic module solar system: A review, Proceedings, 2017 International Conference on Wireless Communications, Signal Processing and Networking IEEE, Chennai, India, 2017, pp. 1500-1506.DOI:10.1109/WiSPNET.2017.8300012
  6. Kumar, R., Rosen, M.A., A critical review of photovoltaic-thermal solar collectors for air heating, Applied Energy, 88(2011), 11, pp. 3603-3614. DOI:10.1016/j.apenergy.2011.04.044
  7. Pandey, K.M., Chaurasiya, R., A review on analysis and development of solar flat plate collector, Renewable and Sustainable Energy Reviews, 67(2017), 67, pp. 641-650. DOI:10.1016/j.rser.2016.09.078
  8. Imenes, A.G., Mills, D.R., Spectral beam splitting technology for increased conversion efficiency in solar concentrating systems: a review, Solar Energy Materials & Solar Cells, 84(2004), 1-4, pp. 19-69. DOI:10.1016/j.solmat.2004.01.038
  9. Kamthania, D., et al, Energy and exergy analysis of a hybrid photovoltaic thermal double pass air collector, Applled Solar Energy, 47(2011), 3, pp. 199-206. DOI:10.3103/S0003701X11030066
  10. Slimani, M.E.A., et al, A detailed thermal-electrical model of three photovoltaic/thermal (PV/T) hybrid air collectors and photovoltaic (PV) module: Comparative study under Algiers climatic conditions, Energy Conversion & Management, 133(2017), pp. 458-476. DOI:10.1016/j.enconman.2016.10.066
  11. Ooshaksaraei, P., et al, Performance of four air-based photovoltaic thermal collectors configurations with bifacial solar cells, Renewable Energy, 102(2017), pt.B, pp. 279-293. DOI:10.1016/j.renene.2016.10.043
  12. Cooper, et al, Development of a dynamic model for a hybrid photovoltaic thermal collector-Solar air heater with fins, Renewable Energy, 101(2017), Feb., pp. 816-834
  13. Elsafi, A., Gandhidasan, P., Performance of a photovoltaic or thermal double-pass solar air heater with differentfin configurations, Clean Energy Technol, 3(2015), pp. 28-33. DOI:10.7763/JOCET.2015.V3.163
  14. Mojumder, J.C., et al, An experimental investigation on performance analysis of air type photovoltaic thermal collector system integrated with cooling fins design, Energy & Buildings, 130(2016), oct., pp. 272-285. DOI:10.1016/j.enbuild.2016.08.040
  15. Choi, H.U., Choi, K.H., Performance Evaluation of PV/T Air Collector Having a Single-Pass Double-Flow Air Channel and Non-Uniform Cross-Section T ransverse Rib, Energies, 13(2020). DOI:10.3390/en13092203
  16. Yu, J.S., et al, Effect of Triangular Baffle Arrangement on Heat Transfer Enhancement of Air-Type PVT Collector, Sustainability, 12(2020). DOI:10.3390/su12187469
  17. Jha, P., et al, An experimental study of a photovoltaic thermal air collector (PVTAC): A comparison of a flat and the wavy collector, Applied thermal engineering: Design, processes, equipment, economics, 163(2019)
  18. Al-Waeli, A.H.A., et al, Modeling and experimental validation of a PVT system using nanofluid coolant and nano-PCM, Solar Energy, 117(2019), JAN., pp. 178-191. DOI:10.1016/j.solener.2018.11.016
  19. Shan, F., et al, Comparative simulation analyses on dynamic performances of photovoltaic-thermal solar collectors with different configurations, Energy Conversion & Management, 87(2014), pp. 778-786. DOI:10.1016/j.enconman.2014.07.077
  20. Khelifa, A., et al, Analysis of a Hybrid Solar Collector Photovoltaic Thermal (PVT), Elsevier Ltd, 74(2015), pp. 835-843. DOI:10.1016/j.egypro.2015.07.819
  21. Ranganathan, S.K., et al, Numerical model and experimental validation of the heat transfer in air cooled solar photovoltaic panel, Thermal Science, 20(2016), 4, pp. 1071-1081. DOI:10.2298/TSCI170702161E
  22. Othman, M.Y., et al, Performance analysis of PV/T Combi with water and air heating system: An experimental study, Renewable Energy, 86(2016), 1, pp. 716-722.DOI:10.1016/j.renene.2015.08.061
  23. Wenhua, L., et al, Numerical simulation of flow and heat transfer in rectangular channel with different aspect ratios, Proceedings, 5th ASME International Conference on Micro/Nanoscale Heat and Mass Transfer, Biopolis, Singapore, 2016, pp. 1-4. DOI:10.1115/MNHMT2016-6602
  24. Chao, G., et al, Numerical simulation and experimental validation of tri-functionalphotovoltaic/thermal solar collector, Energy, 87(2015), pp. 1-11. DOI:10.1016/
  25. Incropera, F. P., Fundamentals of heat and mass transfer, Wiley, 2006. DOI:US5328671 A
  26. Sohel, M.I., et al, A dynamic model for air-based photovoltaic thermal systems working under real operating conditions, Appl Energy, 132(2014), pp. 216-225. DOI:10.1016/j.apenergy.2014.07.010
  27. Aste, N., et al, Performance monitoring and modeling of an uncovered photovoltaic-thermal (PVT) water collector, Solar Energy, 135(2016), pp. 551-568. DOI:10.1016/j.solener.2016.06.029
  28. Tiwari, A., et al, Performance evaluation of photovoltaic thermal solar air collector for composite climate of India, Solar Energy Materials & Solar Cells, 90(2006), 2, pp. 175-189. DOI:10.1016/j.solmat.2005.03.002
  29. Li, Z., Gao, Y., Numerical study of turbulent flow and heat transfer in cross-corrugated triangular ducts with delta-shaped baffles, International Journal of Heat and Mass Transfer, 108(2017), pp. 658-670. DOI:10.1016/j.ijheatmasstransfer.2016.12.054
  30. Yuan, W., et al, Comparison study of the performance of two kinds of photovoltaic/thermal(PV/T) systems and a PV module at high ambient temperature, Energy, 148(2018), APR.1, pp. 1153-1161. DOI:10.1016/