Experimental Study on the Thermal Performances of a Heat Pipe Solar Collector


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Abstract


In this work, we present an experimental study of the thermal performance of a Heat Pipe Solar Collector (HPSC). The HPSC has 12 copper heat pipes filled with water and having a capillary structure made of helicoidal and trapezoidal capillary grooves, and Compound Parabolic Concentrator (CPC) type reflectors are used. The tests were performed under the meteorological conditions of Tunis during spring and summer 2009, and several operating parameters such as the solar irradiation, the mass flow rate, and the temperature of water flowing through the HPSC are considered. For fixed operating conditions, the experimental results show that the instantaneous efficiency of the HPSC increases during the day and reaches 80 % in late afternoon. However, it decreases when water mass flow rate and temperature increase. The experimental thermal performance curves (instantaneous efficiency vs. reduced temperature) allow for the determination of the optical efficiency as well as the solar collector heat losses coefficient.
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Keywords


Heat Pipes; Vacuum Solar Collector; Efficiency; Solar Cooling

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References


Le solaire thermique dans le monde, www.enr.fr/docs/2010144459_ST01DeveloppementMondemai2010.pdf, Mars 2009, 8 p.

Bienert, W., Heat pipes for solar energy collectors, 1st Int. Heat Pipe Conference, Stuttgart, Germany, 1973.

Bienert, W.B., Wolf, D.A., Heat pipes in flat plate solar collectors, ASME paper, 76-WA/SOL-12, 1976, 11p.

Ramsey, J.W., Gupta, B.P., Knowles, G.R., Experimental evaluation of a cylindrical parabolic solar collector, J. Heat Transfer, Vol. 99, 1977, pp.163-168.

Mahdjuri, F., Evacuated heat pipe solar collector, J. Energy Conversion, Vol. 19, N° 2, 1979, pp. 85-90.

Soin, R.S., Sangameswar, R.K., Rao, D.P., Rao, K.S., Performance of plate solar collector with fluid undergoing phase change, Solar Energy, Vol. 23, N° 1, 1979, pp. 69-73.

Ortabasi, U., Fehlner, F.P., Cusp mirror-heat pipe evacuated tubular solar thermal collector, J. Solar Energy, Vol. 24, N° 5, 1980, pp. 477-489.

Ortabasi, U., Buehl, W.M., An internal cusp reflector for an evacuated tubular heat pipe solar thermal collector, Solar Energy, Vol. 25, N° 1, 1980, pp. 67-78.

Bairamov, R., Toiliev, K., Heat pipe in solar collectors, In Advances in Heat Pipe Technology, D.A. Reay (Ed.), Pergamon Press, Oxford, 1981.

Bottum, E.W., Refrigerant charged phase change solar water and space heating systems, ASHREA Transactions, 87 (Part 2), 1981, pp. 397-404.

Schreyer, J.M., Residential application of refrigerant charged solar collectors, Solar Energy, Vol. 26, N°4, 1981, pp. 307-312.

Ribot, J., McConnell, R.D., Testing and analysis of a heat pipe solar collector, J. Solar Energy Engineering, Vol. 105, 1983, pp. 440-445.

Akyurt, M., Development of heat pipes for solar water heaters, Solar Energy, Vol. 32, N° 5, 1984, pp. 625-631.

Fanney, A.H., Terlizzi, C.P., Testing refrigerant charged solar domestic hot water systems, Solar Energy, Vol. 35, N° 4, 1985, pp. 353-366.

Akyurt, M., the heat pipe solar water heater, J. Eng. Appl. Sci., Vol. 3, 1986, pp. 23-28.

Azad, E., Moztarzadeh, F., Zargham, N., An experimental study of a co-axial heat pipe solar collector, Heat Recovery Systems, Vol. 6, N° 3, 1986, pp. 255-258.

Hull, J.R., Analysis of heat transfer factors for a heat-pipe absorber array connected to a common manifold, J. Solar Energy Engineering, Vol. 108, N° 1, 1986, pp. 23-28.

Khalifa, A.M.A., Akyurt, M., Taha, M.M.A., Cookers for solar homes, Applied Energy, Vol. 24, N°2, 1986, pp. 77-89.

Ramsey, J.W., Experimental evaluation of a cylindrical parabolic solar collector, ASME paper 76-WA/HT-13, 1986, 8p.

Soin, R.S., Raghuraman, S., Murali, V., Two-phase water heater model and long term performance, Solar Energy, Vol. 38, N° 2, 1987, pp. 105-112.

Terpstra, M., Van Veen, J., Heat Pipes: construction and application. A study of patents and patent applications, Elsevier, Applied Sciences, New York, 1987.

Keddy, E., Sena, J.T., Merrigan, M., Development of an integrated heat pipes thermal storage system of a solar receiver, AIAA paper 88.2683, Thermophysics, Plasmadynamics and Lasers Conference, San Antonio, TX, June 27-29, 1988. 6 p.

Radhwan, A.M., Zaki, G.M., Jami, A., Refrigerant changed integrated solar water heater, International Journal of Energy Research, Vol. 14, 1990, pp. 317-321.

Collares-Pereira, M., Mendes, F., Brost, O., Gross, M., Roesler, S., Optimized heat pipe for application in integrated CPCs, ISES World Congress, 19-23 August, Denver, USA, 1991, pp. 1855-1859.

Adkins, D.R., High-flux testing of heat pipes for point-focus solar collector systems, Sandia National Laboratories, Albuquerque, New Mexico, 1993.

Bong, T.Y., Ng., K.C., Bao, H., Thermal performance of flat-plate heat pipe collector array, Solar Energy, Vol. 50, N° 6, 1993, pp. 491-498.

El-Nasr, M.A., El Haggar, S.M., Performance of a wickless heat pipe solar collector, Energy sources, Vol. 15, N°3, 1993, pp. 513-522.

Hammad, M., Experimental study of the performance of a solar collector cooled by heat pipes, Energy Conversion Management, Vol. 36, N° 3, 1995, pp. 197-203.

Pluta, Z., Pomierny, W., The theoretical and experimental investigation of the phase-change solar thermosyphon, Renewable Energy, Vol. 6, N° 3, 1995, pp. 317-321.

Balzar, A., Stumpf, P., Eckhoff, S., Ackermann, H., Grupp, M., A solar cooker using vacuum-tube collectors with integrated heat pipes, Solar Energy, Vol. 58, N° 1-3, 1996, pp. 63-68.

Wang, C.Y., Hu, Y.Y., Wang, C.H., The experimental study of separate heat-pipe collector, American Solar Energy Society Annual Conference, April 25-30, Washington, 1997, pp. 45-49.

Ghaddar, N., Nasr, Y., Experimental study of a refrigerant charged solar collector, International Journal of Energy Research, Vol. 22, N°8, 1998, pp. 625-638.

Ismail, K.A.R., Abogderah, M.M., Performance of a heat pipe solar collector, J. Sol. Energy Eng., Vol. 120, 1998, pp. 51-59.

Chun, W., Kang, Y.H., Kwak, H.Y., Lee, Y.S., An experimental study of the utilization of heat pipes for solar water heaters, Applied Thermal Energy, Vol. 19, N° 8, 1999, pp. 807-817.

Esen, M., Yuksel, T., Performance of thermosyphon flat plate solar collector with heat pipes, Firat University Journal of Science and Engineering, Vol. 12, 2000, pp. 201-207.

He, Z.N., Theoretical and experimental analysis of the thermal performance of a heat-pipe evacuated solar tube, Heat Transfer Science and Technology, 2000, pp. 849-854.

Lima, W.M., Palangana, A.J., Flat plate solar collector with heat pipes and selective surfaces, Latin American Applied Research, Vol. 30, N° 3, 2000, pp. 249-251.

Ng, K.C., Yap, C., Khor, T.H., Outdoor testing of evacuated-tube heat-pipe solar collectors, Proceedings of the Institution of Mechanical Engineering, Vol. 214, Issue E1, 2000, pp. 23-30.

Payakaruk, T., Terdtoon, P., Ritthidech, S., Correlations to predict heat transfer characteristics of an inclined closed two-phase thermosyphon at normal operating conditions, Applied Thermal Engineering, Vol. 20, N° 9, 2000, pp. 781-790.

Riffat, S.B., Doherty, P.S., Abdel Aziz, E.I., Performance testing of different types of liquid flat plate collectors, Int. J. Energy Research, Vol. 24, N° 13, 2000, pp. 1203-1215.

Stumpf, P., Balzar, A., Eisemann, W., et al., Comparative measuments and theoretical modelling of single - and double-stage heat pipe coupled solar cooking systems for high temperatures, Solar Energy, Vol. 71, N°1, 2001, pp. 1-10.

Susheela, N., Sharp, M.K., Heat pipe augmented passive solar system for heating of buildings, J. Energy Engineering, Vol. 127, N° 1, 2001, pp. 18-36.

Bazzo, E., Nogoseke, M., Heinen, L., Thermal behavior of capillary pumping systems applied to solar collectors, 12th International Heat Pipe Conference, Vol. 2, Moscow, 2002.

Mathioulakis, E., Belessiotis, V., A new heat-pipe solar domestic hot water system, Solar Energy, Vol. 72, N°1, 2002, pp. 13-20.

Bazzo, E., Nogoseke, M., Capillary pumping systems for solar heating application, Applied Thermal Engineering, Vol. 23, N° 9, 2003, pp. 1153-1165.

Kang Y.H., Kang M.C., Chun, W.G., A study on thermal characteristics of the solar collector made with a closed loop thermosyphon, International Communications in Heat and Mass Transfer, Vol. 30, N° 7, 2003, pp. 955-964.

Abreu, S.L., Colle, S., An experimental study of two-phase closed thermosyphons for compact solar domestic hot water systems, J. Solar Energy, Vol. 76, N° 1-3, 2004, pp. 141-145.

Esen, M., Thermal performance of a solar cooker integrated vacuum-tube collector with heat pipes containing different refrigerants, Solar Energy, Vol. 76, N° 6, 2004, pp. 751-757.

Nada, S.A., El-Ghetany, H.H., Hussain, H.M.S., Performance of two-phase closed thermosyphon soalr collector with shell and tube heat exchanger, J. Applied Thermal Engineering, Vol. 24, N° 13, 2004, pp. 1959-1968.

Riffat, S.B., Zhao, X., Boukhanouf, R. et al., Theoretical and experimental investigation of a novel hybrid heat pipe solar collector, International Journal of Green Energy, Vol. 1, N° 4, 2004, pp. 515-542.

Abu-Zour, A.M., Riffat, S.B., Wilson, R., Comparison between heat pipe and direct heat exchange solar louvre collectors, International Journal of Green Energy, Vol. 2, N° 4, 2005, pp. 353-364.

Esen, M., Esen, H., Experimental investigation of a two-phase closed thermosyphon solar water heater, Solar Energy, Vol. 79, N° 5, 2005, pp. 459-468.

Sivaraman, B., Krishna Mohan, N., Experimental analysis of heat pipe solar collector with different L/di ratio of heat pipe, Journal of Scientific & Industrial Research, Vol. 64, 2005, pp. 678-701.

Yu, Z.T., Hu, Y.C., Hong, R.H., Cen, K.F., Investigation and analysis on a cellular heat pipe flat solar heater, Heat and Mass Transfer, Vol. 42, N° 2, 2005, pp. 122-128.

Facão, J. Oliveira, A.C., Analysis of a plate heat pipe solar collector, Int. J. of low Carbon Technologies, Vol. 1, N° 4, 2006, pp. 287-297.

Hussein, H.M.S., El-Ghetany, H.H., Nada, S.A., Performance of wickless heat pipe flat plate solar collectors having different pipes cross sections geometries and filling ratios, Energy Conversion Management, Vol. 47, N° 11-12, 2006, pp. 1539-1549.

Fan, J.H., Dragsted., J., Furbo., S., Validation of simulation models for differently designed heat-pipe evacuated tubular collectors, Proceedings of ISES Solar World Congress 2007: Solar Energy and Human Settlement, Vols. 1-5, 2007, pp. 663-668.

He, Z.N., Wei, L., Ling, W., Comparison of seven solar air-conditioning systems installed in different countries, Proceedings of ISES Solar World Congress 2007: Solar Energy and Human Settlement, Vols. 1-5, 2007, pp. 842-847.

Hussein, H.M.S., Theoretical and experimental investigation of wickless heat pipes flat solar collector with cross flow heat exchanger, Energy Conversion and Management, Vol. 48, N° 4, 2007, pp. 1266-1272.

Jiang, X.N., Ge, H.C., Gao, H.S., Zhou, X.B., Horizontal heat pipe vacuum tube collector application in balcony solar water heater, Proceedings of ISES Solar World Congress 2007: Solar Energy and Human Settlement, Vols. 1-5, 2007, pp. 571-574.

Rittidech, S., Wannapakne, S., Experimental study of the performance of a solar collector by closed-end oscillating heat pipe (CEOHP), Applied Thermal Engineering, Vol. 27, N° 11-12, 2007, pp. 1978-1985.

Acar, B., Oz, E.S., Gedik, E., Experimental investigation of collector efficiencies on separated and connected heat pipes, Journal of the faculty of engineering and architecture of Gazi university, Vol. 23, N° 2, 2008, pp. 425-429.

Azad, E., Theoretical and experimental investigation of heat pipe solar collector, Experimental Thermal and Fluid Science, Vol. 32, N° 8, 2008, pp. 1666-1672.

Enaburekhan, J., Yakasai, U.T., Performance evaluation of a refrigerant-charged integrated solar water heater in northern Nigeria, Desalination, Vol. 243, N° 1-3, 2009, pp. 208-217.

Rittidech, S., Donmaug, A., Kumsombut, K., Experimental study of the performance of a circular tube solar collector with closed-loop oscillating heat pipe with check valve (CLOHP/CV), Renewable Energy, Vol. 34, N° 10, 2009, pp. 2234-2238.

Yang, Y.P., Xian, H.Z., Liu, D.Y., Chen, C.B., Du, X.Z., Investigation on the feasibility of oscillating-flow heat pipe applied in the solar collector, International Journal of Green Energy, Vol. 6, N° 5, 2009, pp. 426-436.

Chen, K., Oh, S.J., Kim, N., Lee, Y.J., Chun, W.G., Fabrication and testing of a non-glass vacuum-tube collector for solar energy utilization, Energy, Vol. 35, N° 6, 2010, pp. 2674-2680.

Ayompe, L.M., Duffy, A., Mc Keever, M., Conlon, M., McCormack, S.J., Comparative field performance study of flat plate and heat pipe evacuated tube collectors (ETCs) for domestic water heating systems in a temperature climate, Energy, Vol. 36, N° 5, 2011, pp. 3370-3378.


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