Thermoelectric Performance of Micro-heat Tube Array Solar PV/T System Based on Parallel Flow Tube with Tiny Porous Channels
- 234 Downloads
This paper presents a solar photovoltaic–thermal cogeneration component based on parallel flow tube with tiny porous channels and micro-heat tube array (MHPA-PV/T). The core heat transfer component effectively combines micro-heat tube array and parallel flow tube with tiny porous channels and applies to solar photovoltaic/thermal system. The heat collection efficiency and power generation efficiency of the two systems under instantaneous and all-day operation conditions are studied and analyzed, respectively. The results show that the instantaneous heat collecting efficiency of the tiny channel flow tube with the MHPA-PV/T components’ maximum value is 36.8% and increases by 14.6% and the photovoltaic increases by 5.5%. The daily average photovoltaic conversion efficiency improves by 9.8% in the all-day efficiency test system, and the daily average photo-thermal conversion efficiency enhances up to 11.1%, compared to the component of airfoil tube in the testing system. The MHPA-PV/T components based on parallel flow tube with tiny porous channels provide a theoretical basis for the practical application and popularization of the solar cogeneration technology in the future.
KeywordsSolar energy Micro-heat tube array Photovoltaic/thermal Parallel flow tube with tiny porous channels
The project is supported by the National Natural Science Foundation of China—Optimization design method of BIPV/T and solar heat pump coupled energy supply system (Grant No. 51778010).
- 2.Kern, E.C.J., Rissell, M.C.: Combined photovoltaic and thermal hybrid collector systems. In: IEEE Photovoltaic Specialists Conference, pp. 1153–1157(1978)Google Scholar
- 3.Hendrie, S.D.: Evaluation of combined photovoltaic/thermal collectors. In: Presented at the International Solar Energy Society, International Congress and Silver Jubilee, Atlanta, CA, 28 May-1 June (1979)Google Scholar
- 4.Santbergen, R., Zolingen, R.J.Ch.: Modeling the thermal absorption factor of photovoltaic/thermal comb panels. Energy Convers. Manage. 47, 3572–3581 (2006)Google Scholar
- 5.Brinkworth, B.J.: Estimation of flow and heat transfer for the design of PV cooling ducts. Solar Energy 69(5), 413–420 (2000)Google Scholar
- 7.Zhao, Y., et al.: Flow-plate micro heat tube arrays and their heat transfer characteristics. J. Chem. Eng. 62(2), 336–343 (2011)Google Scholar