International Journal of Energy Engineering          
International Journal of Energy Engineering(IJEE)
ISSN:2225-6563(Print)
ISSN:2225-6571(Online)
Frequency: Yearly
Editor-in-Chief: Prof. Sri Bandyopadhyay(Australia)
Performance Study of a Double Pass, Hybrid -Type Solar Air Heater with Slats
Full Paper(PDF, 581KB)
Abstract:
A solar hybrid energy system having photovoltaic and thermal (PV/T) devices, which produces both thermal and electrical energies simultaneously is considered for analysis. A double pass hybrid solar air (PV/T) heater with slats is designed and fabricated to study its thermal and electrical performance. Air as a heat removing fluid is made to flow through upper and lower channels of the collector. The collector is designed in such way that the absorber plate is partially covered by solar cells. The raise in temperature of the solar cell is expected to decrease its electrical performance. Thin metallic strips called slats are attached longitudinally at the bottom side of the absorber plate to improve the system performance by increasing the cooling rate of the absorber plate. Thermal and electrical performances of the whole system at varying cooling conditions are also presented.
Keywords:Double Pass; Energy; Photovoltaic; Solar Air Heater; Slats
Author: Mokalla. Srinivas1, Simon. Jayaraj1
1.Department of Mechanical Engineering, National Institute of Technology Calicut-673601, India
References:
  1. E.C Kern Jr, M.C Russell, Combined photovoltaic and thermal hybrid collector systems, In: Proc., 13th IEEE photovoltaic specialists, Washington, USA, p p.1153–1157, 1978.
  2. S.C. Solanki, S. Dubey, A. Tiwari, Indoor simulation and testing of photovoltaic thermal (PV/T) air collectors, Appl Energy. Vol. 86, pp. 2421–2428, 2009.
  3. A.S. Joshi, A. Tiwari, G.N. Tiwari, I. Dincer, B.V. Reddy, Performance evaluation of a hybrid photovoltaic thermal (PV/T) (glass-to-glass) system, International Journal of Thermal Sciences. Vol. 48, pp. 154–164, 2009.
  4. S. Dubey, G.S. Sandhu, G.N. Tiwari, Analytical expression for electrical efficiency of PV/T hybrid air collector, Appl Energy. Vol. 86 pp. 697–705, 2009.
  5. J.K. Tonui, Y. Tripanagnostopoulos, Improved PV/T solar collectors with heat extraction by forced or natural air circulation, Renewable Energy. Vol.32, pp. 623–637, 2007.
  6. Y. Tripanagnostopoulos, T.H. Nousia, M. Souliotis, P. Yinnoulis, Hybrid photovoltaic /Thermal solar systems, Solar Energy. Vol. 72 , pp. 217–234, 2002.
  7. S. Dubey, S.C. Solanki, A.Tiwari, Energy and exergy analysis of PV/T air collectors connected in series, Energy and Buildings. Vol. 41 pp. 863–870, 2009.
  8. A.S Joshi, A. Tiwari, Energy and exergy efficiencies of a hybrid Photovoltaic–thermal (PV/T) air collector, Renewable Energy. Vol. 32 pp. 2223–2241, 2007.
  9. A. Tiwari, P. Barnwal, G.S. Sandhu, M.S. Sodha, Energy metrics analysis of hybrid – photovoltaic (PV) modules, Appl Energy. Vol.86 pp .2615–2625 , 2009.
  10. S. Nayak, G.N. Tiwari, Theoretical performance assessment of an integrated photovoltaic and earth air heat exchanger greenhouse using energy and exergy analysis methods, Energy and Buildings. Vol. 41 pp. 888–896, 2009.
  11. S. Nayak, G.N. Tiwari, Energy metrics of photovoltaic/thermal and earth air heat exchanger integrated greenhouse for different climatic conditions of India, Appl Energy.
  12. A. Tiwari, S. Dubey, G.N. Sandhu, M.S. Sodha, S.I. Anwar, Exergy analysis of integrated photovoltaic thermal solar water heater under constant flow rate and constant collection temperature modes, Appl Energy. Vol. 86 pp 2592–2597, 2009.
  13. L.T. Kostic, Tomislav, T.M. Pavlovic, T. Zoran, Z.T. Pavlovic, Influence of reflectance from flat aluminum concentrators on energy efficiency of PV/Thermal collector, Appl Energy. Vol. 87
  14. M.Y. Othman, Baharudin, B.Y.K Sopian, M.N. Abu Bakar, Performance analysis of a double-pass photovoltaic/thermal (PV/T) solar collector with CPC and fins, Renewable Energy. Vol 30 pp. 2005–2017, 2005.
  15. M.Y. Othman, B.Y.K. Sopian, M.N. Abu Bakar, Performance studies on a finned double-pass photovoltaic-thermal (PV/T) solar collector, Desalination. Vol . 209 pp. 43–49, 2007.
  16. P.G. Charalambous, G.G. Maidment, S.A. Kalogirou, K. Yiakoumetti, Photovoltaic thermal (PV/T) collectors: A review, Appl Therm Eng. Vol. 27 pp. 275–286, 2007.
  17. J.K. Tonui, Y. Tripanagnostopoulos, Air-cooled PV/T solar collectors with low cost performance improvements, Solar Energy. Vol. 81 pp.498–511, 2007.
  18. K.K. Matrawy, Theoretical analysis for an air heater with a box type absorber, Solar Energy. Vol 63 pp.191–198, 1998.
  19. C.D. Ho, H.M. Yeh, T.W. Cheng, T.C. Chen, R.C. Wang, The influence of recycle on performance of double pass flat solar air heaters with internal fins attached, Appl Energy. Vol 86 pp. 1470–1478, 2009.
  20. B.J. Huang, T.H. Lin, W.C. Hung, F.S. Sun, Performance evaluation of solar photovoltaic/thermal systems, Solar Energy. Vol 70 pp. 443–448, 2001.
  21. J.P. Holman, Experimental Methods for Engineers, seventh ed., New Delhi, India, 2010.