Thermal Performance and Cost to Produce 90°C-Hot Water of Solar Thermal Collector and Hybrid Photovoltaic Thermal (PVT) Collector Systems
International Journal of Energy and Power Engineering
Volume 5, Issue 4, August 2016, Pages: 155-162
Received: Sep. 19, 2016;
Published: Sep. 19, 2016
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Shigeki Hirasawa, Department of Mechanical Engineering, Kobe University, Rokkodai, Nada, Kobe, Hyogo, Japan
Tsuyoshi Kawanami, Department of Mechanical Engineering, Kobe University, Rokkodai, Nada, Kobe, Hyogo, Japan
Katsuaki Shirai, Department of Mechanical Engineering, Kobe University, Rokkodai, Nada, Kobe, Hyogo, Japan
The effects of types of collector systems, operation-control methods, and locations in the world on thermal performance of solar thermal collector systems and cost to produce required amount of 90°C-hot water were studied through numerical simulations. Also performance of a hybrid photovoltaic thermal (PVT) collector system was examined. Calculation results showed that the costs for all solar thermal collector systems were much less than that without solar thermal collector system. Effect of the locations in the word on the cost was large. Total energy efficiency and exergy efficiency of PVT system were lower than those of the solar thermal collector system. The cost for PVT system was higher than that for the solar thermal collector system.
Thermal Performance and Cost to Produce 90°C-Hot Water of Solar Thermal Collector and Hybrid Photovoltaic Thermal (PVT) Collector Systems, International Journal of Energy and Power Engineering.
Vol. 5, No. 4,
2016, pp. 155-162.
M. Kovarik, P. F. Lesse, "Optimal Control of Flow in Low Temperature Solar Heat Collector," Solar Energy, vol. 18, 1976, pp. 431-435.
P. Dorato, "Optimal Temperature Control of Solar Energy Systems," Solar Energy, vol. 30 (2), 1983, pp. 147-153.
E. Hahne, "Parameter Effects on Design and Performance of Flat Plate Solar Collectors," Solar Energy, vol. 34 (6), 1985, pp. 497-503.
M. Krause, K. Vajen, F. Wiese, H. Ackermann, "Investigations on Optimizing Large Solar Thermal Systems," Solar Energy, vol. 73 (4), 2002, pp. 217-225.
E. Andersen, S. Furbo, "Theoretical Variations of the Thermal Performance of Different Solar Collectors and Solar Combi Systems as Function of the Varying Yearly Weather Conditions in Denmark," Solar Energy, vol. 83 (4), 2009, pp. 552-565.
A. Robles, V. Duong, A. J. Martin, J. L. Guadarrama, G. Diaz, "Aluminium Minichannel Solar Water Heater Performance under Year-Round Weather Conditions," Solar Energy, vol. 110 (12), 2014, pp. 356–364.
J. Wrobel, P. S. Walter, G. Schmitz, "Performance of a Solar Assisted Air Conditioning System at Different Locations," Solar Energy, vol. 92 (6), 2013, pp. 69-83.
S. Hirasawa, T. Kawanami, Y. Okawa, A. Shirai, "Effect of Operation-Control Methods on Collector Thermal Performance of Flat-Plate-Type Evacuated Solar Collector System to Get Hot Water near 100°C," Proc. of 22th International Symposium on Transport Phenomena, Paper-No. 11, 2011.
S. Hirasawa, S. Sato, T. Kawanami, "Study on Heat Transfer Characteristics of Loop Heat Pipe for Solar Collector," Transaction on Control and Mechanical Systems, vol. 2 (4), 2013, pp. 149-154.
S. Hirasawa, R. Tsubota, T. Kawanami, K. Shirai, "Reduction of Heat Loss from Solar Thermal Collector by Diminishing Natural Convection with High-Porosity Porous Medium," Solar Energy, vol. 97, 2013, pp. 305-313.
S. Hirasawa, T. Kawanami, K. Shirai, "Optimal System Design and Operation-Control Method for Evacuated Solar Thermal Collector System to Obtain Hot Water near 100°C," Proc. of International Conference on Engineering and Applied Sciences Optimization, No. 3074, 2014.
S. Dubey, A. A. O. Tay, "Testing of Two Different Types of Photovoltaic–Thermal (PVT) Modules with Heat Flow Pattern under Tropical Climatic Conditions," Energy for Sustainable Development, vol. 17, 2013, pp. 1-12.
G. Evola, L. Marletta, "Exergy and Thermoeconomic Optimization of a Water-Cooled Glazed Hybrid Photovoltaic/Thermal (PVT) Collector," Solar Energy, vol. 107, 2014, pp. 12-25.
Shyama, G. N. Tiwari, I. M. Al-Helal, "Analytical Expression of Temperature Dependent Electrical Efficiency of N-PVT Water Collectors Connected in Series," Solar Energy, vol. 114, 2015, pp. 61-76.
M. Lammle, T. Kroyer, S. Fortuin, M. Wiese, M. Hermann, "Development and Modelling of Highly-Efficient PVT Collectors with Low-Emissivity Coatings," Solar Energy, vol. 130, 2016, pp. 161-173.
Blue Tec Gmb H & Co., Technical information, Available at: http://www.bluetec-germany.de/fileadmin/user_upload/pdf/produktinfos/60609_echn_doku_eng.pdf.
J. P. Holman, Heat Transfer, 9th Ed., McGraw-Hill International Book Co., Boston, 2002.
R. P. Collins, E. G. Miravete, "Mathematical Model of a Hybrid Solar Panel," Proc. of ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014-37259, 2014.
Japan Meteorological Agency, Weather, Climate & Earthquake Information, Available at: http://www. jma.go.jp/jma/ indexe.htm.
U.S. Department of Energy, Energy Plus Energy Simulation Software, Available at: http://www.eere. energy.gov/buildings/ energyplus/cfm/weather_data.cfm.