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Economic optimization of low-flow solar domestic hot water plants

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  • Cardinale, N.
  • Piccininni, F.
  • Stefanizzi, P.

Abstract

A solar plant for hot-water production was investigated by the dynamic simulation code (TRNSYS). A typical daily home consumption for a 4 persons family was considered. The hot-water demand temperature (53 °C) is controlled by a conventional fuel auxiliary heater and a tempering valve. A heat-exchanger is considered between collector and storage tank. The fluids circulate by pumps activated by photovoltaic panels. This simplifies plant control systems and allows for stand-alone utilization of the plant. Annual energy performance, in terms of solar fraction, was calculated for three Italian localities. The economic viability of such a plant was evaluated with the life cycle savings (LCS) method, considering three conventional fuels (Gas-Oil, LPG and Electricity). Italian Government incentives show an economic viability only in comparison with electrical energy.

Suggested Citation

  • Cardinale, N. & Piccininni, F. & Stefanizzi, P., 2003. "Economic optimization of low-flow solar domestic hot water plants," Renewable Energy, Elsevier, vol. 28(12), pages 1899-1914.
    • Handle: RePEc:eee:renene:v:28:y:2003:i:12:p:1899-1914
    DOI: 10.1016/S0960-1481(03)00070-3
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    References listed on IDEAS

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    1. Kalogirou, Soteris A & Papamarcou, Christos, 2000. "Modelling of a thermosyphon solar water heating system and simple model validation," Renewable Energy, Elsevier, vol. 21(3), pages 471-493.
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    2. Wang, Yanqiu & Ji, Jie & Sun, Wei & Yuan, Weiqi & Cai, Jingyong & Guo, Chao & He, Wei, 2016. "Experiment and simulation study on the optimization of the PV direct-coupled solar water heating system," Energy, Elsevier, vol. 100(C), pages 154-166.
    3. Khoshvaght-Aliabadi, M. & Tatari, M. & Salami, M., 2018. "Analysis on Al2O3/water nanofluid flow in a channel by inserting corrugated/perforated fins for solar heating heat exchangers," Renewable Energy, Elsevier, vol. 115(C), pages 1099-1108.
    4. Rodríguez-Hidalgo, M.C. & Rodríguez-Aumente, P.A. & Lecuona, A. & Legrand, M. & Ventas, R., 2012. "Domestic hot water consumption vs. solar thermal energy storage: The optimum size of the storage tank," Applied Energy, Elsevier, vol. 97(C), pages 897-906.
    5. Ho, C.D. & Chen, T.C., 2006. "The recycle effect on the collector efficiency improvement of double-pass sheet-and-tube solar water heaters with external recycle," Renewable Energy, Elsevier, vol. 31(7), pages 953-970.
    6. Ashouri, Araz & Fux, Samuel S. & Benz, Michael J. & Guzzella, Lino, 2013. "Optimal design and operation of building services using mixed-integer linear programming techniques," Energy, Elsevier, vol. 59(C), pages 365-376.
    7. Carboni, Christian & Montanari, Roberto, 2008. "Solar thermal systems: Advantages in domestic integration," Renewable Energy, Elsevier, vol. 33(6), pages 1364-1373.
    8. Chang-Hyun Park & Yu-Jin Ko & Jong-Hyun Kim & Hiki Hong, 2020. "Greenhouse Gas Reduction Effect of Solar Energy Systems Applicable to High-rise Apartment Housing Structures in South Korea," Energies, MDPI, vol. 13(10), pages 1-13, May.
    9. Ho, C.D. & Yeh, C.W. & Hsieh, S.M., 2005. "Improvement in device performance of multi-pass flat-plate solar air heaters with external recycle," Renewable Energy, Elsevier, vol. 30(10), pages 1601-1621.
    10. Özkan, Derya B. & Onan, Cenk, 2011. "Optimization of insulation thickness for different glazing areas in buildings for various climatic regions in Turkey," Applied Energy, Elsevier, vol. 88(4), pages 1331-1342, April.
    11. Kim, Jimin & Hong, Taehoon & Jeong, Jaemin & Lee, Myeonghwi & Koo, Choongwan & Lee, Minhyun & Ji, Changyoon & Jeong, Jaewook, 2016. "An integrated multi-objective optimization model for determining the optimal solution in the solar thermal energy system," Energy, Elsevier, vol. 102(C), pages 416-426.
    12. Ji, Jie & Wang, Yanqiu & Yuan, Weiqi & Sun, Wei & He, Wei & Guo, Chao, 2014. "Experimental comparison of two PV direct-coupled solar water heating systems with the traditional system," Applied Energy, Elsevier, vol. 136(C), pages 110-118.
    13. Fu, Huide & Li, Guiqiang & Li, Fubing, 2019. "Performance comparison of photovoltaic/thermal solar water heating systems with direct-coupled photovoltaic pump, traditional pump and natural circulation," Renewable Energy, Elsevier, vol. 136(C), pages 463-472.

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