THERMAL SCIENCE
International Scientific Journal
EXERGY ANALYSIS OF A VACUUM TUBE SOLAR COLLECTOR SYSTEM HAVING INDIRECT WORKING PRINCIPLE
ABSTRACT
In this study, the energy and exergy analysis of a hot water preparation system, which is a boiler assisted vacuum tube solar collector, has been conducted. The obtained data were compared with reported results in the literature related to direct operating principle system. Average energy and exergy efficiencies of the experimental system were founded 12% and 0.3%, respectively. The average energy and exergy efficiencies of the vacuum tube solar collectors were founded 13.6% and 1.3%. Energy and exergy efficiencies of the vacuum tube solar collectors, which have indirect operating principle, are lower than direct system working with solar collectors. Maximum exergy loss has occurred in the vacuum tube solar collectors and followed it boiler and pump, respectively.
KEYWORDS
PAPER SUBMITTED: 2015-09-05
PAPER REVISED: 2015-12-25
PAPER ACCEPTED: 2015-12-31
PUBLISHED ONLINE: 2016-01-30
THERMAL SCIENCE YEAR
2017, VOLUME
21, ISSUE
Issue 6, PAGES [2813 - 2825]
- . D. Johari, A. Yadav, R. Verma, Study Of Solar Water Heaters Based On Exergy Analysıs, Proceedings of the National Conference on Trends and Advances in Mechanical Engineering, Oct 19-20, 2012
- . ASHRAE, Handbook of HVAC Applications, 30 (1995). Atlanta
- . He, Z.N., Ge, H.C., Jiang, F.L., Li, W., A Comparison of Optical Performance Between Evacuated Collector Tubes With Flat and Semi-Cylindric Absorbers, Solar Energy, 60 (1997), pp 109-117.
- . Kim, J.T., Ahn, H.T., Han, H., Kim, H.T., Chun, W., The Performance Simulation of All Glass Vacuum Tubes With Coaxial Fluid Conduit, International Communications in Heat and Mass Transfer, 34 (2007), 5, pp. 587-597
- . Shah, L.J., Furbo, S., Vertical Evacuated Tubular-Collectors Utilizing Solar Radiation from All Directions, Applied Energy, 78 (2004), pp. 371-395
- . Morrison, G.L., Budihardjo, I., Behnia, M., Measurement and Simulation of Flow Rate in a Water-in-Glass Evacuated Tube Solar Water Heater, Solar Energy, 78 (2005), pp. 257-267
- . Kim, Y., Seo, T., Thermal Performances Comparisons of The Glass Evacuated Tube Solar Collectors With Shapes of Absorber Tube, Renewable Energy, 32 (2007), 5, pp. 772-795
- . Han, H., Kim, J.T., Ahn, H.T., A Three-Dimensional Performance Analysis of All-Glass Vacuum Tubes With Coaxial Fluid Conduit, International Communications in Heat and Mass Transfer, 35 (2008), pp. 589-596
- . Ma, L., Lu Z., Zhang J., Liang, R., Thermal Performance Analysis of The Glass Evacuated Tube Solar Collector With U-Tube, Building and Environment, 45 (2010), pp. 1959-1967
- . Liang, R., Ma, L., Zhang, J., Zhao, D., Theoretical and Experimental Investigation of The Filled-Type Evacuated Tube Solar Collector With U Tube, Solar Energy, 85 (2011), pp. 1735-1744
- . Hepbaşlı, A., The Necessity And Application Of Exergy Analysis In Systems With Solar Energy, Proceedings, Chamber of Mechanical Engineers, Symposium and Exhibition of Solar Energy Systems, Mersin, Turkey, 2003, Vol 1, p. 80-87.
- . Xiaowu, W., Ben H., Exergy Analysis of Domestic-Scale Solar Water Heaters, ReneWable and Sustainable Energy Reviews, 9 (2005), pp. 638-645
- . Saidur, R., Boroumandjazi, G., Mekhlif, S., Jameel, M., Exergy Analysis of Solar Energy Applications, Renewable and Sustainable Energy Reviews, 16 (2012), pp. 350-356
- . Xiaowu W. Ben H., Exergy Analysis of Domestic-Scale Solar Water Heaters, Renewable and Sustainable Energy Reviews, 9 (2005), pp. 638-645
- . Huseyin Gunerhan, Arif Hepbasli, Exergetic Modeling and Performance Evaluation of Solar Water Heating Systems for Building Applications, Energy and Buildings, 39 (2007), 5, pp. 509-516
- . Viorel Badescu, Optimal control of flow in solar collectors for maximum exergy extraction, International Journal of Heat and Mass Transfer, 50 (2007), pp. 4311-4322
- . S. Farahat, F. Sarhaddi, H. Ajam, Exergetic optimization of flat plate solar collectors, Renewable Energy, 34 (2009), pp. 1169-1174
- . Farzad Jafarkazemi, Emad Ahmadifard, Energetic and exergetic evaluation of flat plate solar collectors, Renewable Energy, 56 (2013), pp. 55-63
- . I. Luminosua, L. Farab, Determination of the optimal operation mode of a flat solar collector by exergetic analysis and numerical simulation, Energy, 30 (2005), pp. 731-747
- . Gang Pei, Guiqiang Li, Xi Zhou, Jie Ji, Yuehong Su, Comparative Experimental Analysis of the Thermal Performance of Evacuated Tube Solar Water Heater Systems With and Without a Mini Compound Parabolic Concentrating (CPC) Reflector(C < 1) , Energies, 5 (2012), pp. 911-924
- . Yıldızhan, H., Boyler Destekli Vakum Tüplü Güneş Kollektör Sisteminin Farklı Parametrelere Göre Ekserji Analizi, Ph. D. Thesis, Gazi Üniversitesi, Ankara, Turkey, 2013.
- . Çengel, Y.A., Boles, M.A., Thermodynamics: An Engineering Approach, McGraW-Hill, New York, USA, 1994, pp. 67-68
- . Szargut, J., Exergy Method: Technical and Ecological Applications, Boston: WIT Press, Southampton, UK, 2005, pp. 50-52
- . Hepbasli, A., A Key Review on Exergetic Analysis and Assessment of Renewable Energy Resources for a Sustainable Future, Renewable and Sustainable Energy Reviews, 12 (2008), 3, pp. 593-661
- . Petela, R., Exergy of Undiluted Thermal Radiation, Solar Energy, 74 (2003), pp. 469-488
- . Arif Hepbaşlı, İbrahim Dinçer, Marc A. Rosen, Exergy Analysis Of Heat Pump Systems For Residential Applications, Journal of Turkish Plumbing Engineers Chamber, 44 (2006), pp. 18-24
- . İbrahim Dinçer, Marc A. Rosen, Exergy, Energy, Environment and Sustainable Development, Elsevier, New York, USA, 2013, pp. 104-105
- . Deniz Yildirim, Leyla Ozgener, Thermodynamics and exergoeconomic analysis of geothermal power plants, Renewable and Sustainable Energy Reviews, 16 (2012), pp. 6438-6454
- . Öztürk, H.H., Experimental Determination of Energy and Exergy Efficiency of the Solar Parabolic-Cooker, Solar Energy, 77 (2004), pp. 67-71
- N. Singh, S.C. Kaushik, R.D. Misra, Exergetic analysis of a solar thermal power system, Renewable Energy, 19 (2000), pp. 135-143.