An experimental investigation of performance of a 3-D solar conical collector at different flow rates

Document Type : Full Lenght Research Article

Authors

1 Shahid Chamran University of Ahvaz, Faculty of Engineering, Department of Mechanical Engineering

2 Azad Street . No#35 Behbahan, Iran

Abstract

The shape of a solar collector is an important factor in solar-to-thermal energy conversion. Conical shape is one of the stationary and symmetric shapes that can be employed as a solar water heater. Flow rate of working fluid on the solar collector has an important effect on the efficiency of the collector. The present study is an experimentally investigated of the performance of the solar conical collector with 1m2 of absorber area at different volumetric flow rates. Water was used as the working fluid with the volumetric flow rate between 0.35-2.8 lit/min and the experiment was held in the ASHRAE standard conditions. The results demonstrated that the efficiency of the conical collector is increased by increasing the flow rate of the working fluid; in addition, the difference between inlet and outlet temperatures is decreased. The maximum recorded outlet-temperature of the collector during the experimental tests was 77.1 0 C and the maximum value of thermal efficiency was about 60%.

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References

[1].  M. Esen, H. Esen, “Experimental investigation of a two-phase closed thermo syphon solar water heater”, Solar Energy, 79 (2005) 459-468.
[2]. T. Yousefi, E. Shojaeizadeh, F. Veysi, S. Zinadini, “An experimental investigation on the effect of Al2O3-H2O nanofluid on the efficiency of flat plate solar collector”, Renewable Energy, 39 (2012) 293-298.
[3]. Z. Chen, S. Furbo, B. Perers, J. Fan, J., Andersen, “Efficiencies of flat plate solar collectors at different flow rates”, Energy Procedia, 30 (2012) 65-72.
[4]. S. Kalogirou, “Prediction of flat plate collector performance parameters using artificial neural networks”, Solar Energy, 80 (2006) 248-259.
[5].  S. Kalogirou, “Solar thermal collectors and applications”, Progress in energy and combustion science, 30 (2004) 231-295.
[6]. Y. Tian, C. Y. Zhao, “A review of solar collectors and thermal energy storage in solar thermal applications”, Applied Energy, 104 (2013) 538-553.
[7]. W.F. Bogaerts, C.M. Lampert, “Materials for photo thermal solar-energy conversion”, Journal of Materials Science, 18 (1983) 2847-2875.
[8].  Y. Tripanagnostopouios, M. Souliotis, T. Nousia, “Solar   collectors    with   colored”, Solar Energy, 68 (2000) 343-5.
[9].  Z. Orel, M. Gunde, M. Hutchinc, “Spectrally selective solar   absorbers   in different Non-black colours”, Solar Energy Materials and Solar Cells, 85 (2005) 41-50.
[10].  D. J. Close, “Solar air heaters for low and moderate temperature applications”, Solar Energy, 7 (1963) 117-24.
[11]. B. Parker, M. Lindley, D. Colliver, W. Murphy, “Thermal performance of three solar air heaters”, Solar Energy, 51 (1993) 467-79.
[12]. R. Bertocchi, J. Karni, A. Kribus, ‘‘Experimental evaluation of a non-isothermal high temperature solar particle receiver’’, Energy, 29 (2004) 687-700.
[13].  M.S. Bohn, K.Y. Wang, “Experiments and analysis on the molten Salt direct absorption receiver concept”, Journal of solar energy engineering, 110 (1988) 45-51.
[14]. T. Fend, R. Pitz-paal, O. Reutter, J. Bauer, B. Hoffschmid, “Two novel high-porosity materials as volumetric receivers for concentrated solar radiation”, Solar Energy Materials and Solar Cells, 84 (2004) 291-304.
 [15]. S.A. Zamzamian, M. KeyanpourRad,  M. KianiNeyestani, M.T. Jamal-Abad, “An experimental study on the effect of Cu-synthesized/EG nanofluid on the efficiency of flat-plate solar collectors”, Renewable Energy, 71 (2014) 658-664.
[16]. M.T. Jamal-Abad, A. Zamzamian, E. Imani, M. Mansouri, “Experimental study of the performance of a flat-plate collector using Cu–water nanofluids”, Journal of Thermophysics and Heat Transfer, 27 (2013) 756-760.
[17].  H. Mousazaeh, “A review of principal and sun-tracking methods for maximizing solar systems output”, Renewable and sustainable energy reviews, 13 (2009) 1800-1818.
[18].  B. Samanta, K. R. AI Balushi., “Estimation of incident radiation on a novel spherical solar collector”, Renewable Energy, 14 (1998) 241-247.
 [19].  I. Pelece, I. Ziemelis, U. Iljins, “Surface temperature distribution and energy gain from semi-spherical solar collector”, Proceeding of World Renewable Energy Congress, Linkoping, Sweden, (2011) 3913-3920.
[20].  N. Kumar, T. Chavda, H.N. Mistry, “A truncated pyramid non tracking type multipurpose solar cooker/hot water system”, Applied Energy, 87 (2010) 471-477.
[21].  I. Pelece, I. Ziemelis, ‘‘Water heating effectiveness of semi-spherical solar collector’’, Proceeding of the International Scientific Conference of Renewable Energy and Energy Efficiency, Jelgava, Latvia, 2012.
[22].  K. Goudarzi, S.K. Asadi Yousef-abad, E. Shojaeizadeh, A. Hajipour, “Experimental investigation of thermal performance in an advanced solar collector with spiral tube”, International Journal of Engineering-Transactions A: Basics, 27 (2013) 1149.
[23]. S.F. Ranjbar, M.H. Seyyedvalilu, “The effect of Geometrical parameters on heat transfer coefficient in helical double tube exchangers”, Journal of Heat and Mass Transfer Research (JHMTR), 1 (2014) 75-82.
[24].  A.M. Do Ango, M.  Medale, C. Abid, “Optimization of the design of a polymer flat plate solar collector”, Solar Energy, 87 (2013) 64-75.
 [25]. C. Cristofari, G. Notton, P. Poggi, A. Louche, “Modelling and performance of a copolymer solar water heating collector”, Solar Energy, 72 (2002) 99-112.
[26]. ASHRAE Standard 93-86, Methods of testing and determine the thermal performance of solar collectors, ASHRAE, Atlanta, 2003.
[27]. J.A. Duffie, W.A.  Beckman, “Solar Engineering of Thermal Processes”, fourth ed., Wiley, New York, 2013.
[28]. D. Rojas, J. Beermann, S.A. Klein, D.T.  Reindl, “Thermal performance testing of flat plate collectors”, Solar Energy, 82 (2008) 746-757.
[29].  F.M. White, ‘‘Fluid Mechanics’’, fifth ed., McGrow-Hill Book Company, Boston, 2003.
[30].  M. Kahani, S. Zeinali Heris, S. M. Mousavi, ‘‘Effects of curvature ratio and coil pitch spacing on heat transfer performance of Al2O3/water nanofluid laminar flow through helical coils’’, Journal of Dispersion Science and Technology, 34 (2013) 1704-1712.
[31]. M.A. Alim, Z. Abdin, R. Saidur, A. Hepbasli, M.A. Khairul, N.A. Rahim, “Analyses of entropy generation and pressure drop for a conventional flat plate solar collector using different types of metal oxide nanofluids”, Energy and Building,  66 (2013) 289-296.
[32].  R. B. Abernethy, R. P. Benedict, R. B. Dowdell, “ASME measurement uncertainty”, ASME paper,1983, 83-WA/FM-3.
[33].  J. Ma, W. Sun, J. Ji, Y. Zhang, A. Zhang, W. Fan, “Experimental and theoretical study of the efficiency of a dual-function solar collector”, Applied Thermal Engineering, 31 (2011) 1751-1756.
[34].  S.S. Meibodi, A. Kianifar, H. Niazmand, O. Mahian, S. Wongwises, “Experimental investigation on the thermal efficiency and performance characteristics of a flat plate solar collector using SiO 2/EG–water nanofluids”, International Communications in Heat and Mass Transfer, 65 (2015) 71-75.
[35].  H.K. Gupta, G.D. Agrawal, J. Mathur, “Investigation for effect of Al2O3-H2O nanofluid flow rate on the efficiency of direct absorption solar collector”, Solar Energy, 118 (2015) 390-396.
[36].  G.H. Ko, K. Heo, K. Lee, D.S. Kim, C. Kim, Y. Sohn, M. Choi, “An experimental study on the pressure drop of nanofluids containing carbon nanotubes in a horizontal tube”, International Journal of Heat and Mass Transfer, 50 (2007) 4749-4753.

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History

  • Receive Date: 13 May 2016
  • Revise Date: 05 October 2016
  • Accept Date: 23 October 2016

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