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Numerical and Experimental Study on a Solar Water Heating System in Lhasa

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  • Xun Yang

    (National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science & Technology, Chongqing University, Chongqing 400045, China
    Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing 400045, China)

  • Yong Wang

    (National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science & Technology, Chongqing University, Chongqing 400045, China
    Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing 400045, China)

  • Teng Xiong

    (National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science & Technology, Chongqing University, Chongqing 400045, China
    Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing 400045, China)

Abstract

Lhasa is a “solar city” with high altitude, located in a cold zone in China. Due to the lack of mineral energy sources and the fragility of its ecological environment, solar heating technology is the first choice to satisfy the demand of indoor thermal comfort for building heating. In this study, an accurate solar heating system in Lhasa was investigated under the simultaneous charging and discharging operation mode. Based on the solar heating system, a numerical calculation method of the tank temperature distribution under the simultaneous charging and discharging operation mode was proposed and validated by experiments. This numerical method offers a correlation between the output water temperatures of the tank and the input water temperatures of the tank, which can be used to optimize the thermal performance of the solar heating system in future studies. To evaluate the system performance under the simultaneous charging and discharging operation mode, the transient coefficient of performance (COP) of the heating system was calculated based on the experimental measurements. The calculated results showed that the system COP reached an average number of 3.0, which was nearly equal to that of gas-boiler heating system and much higher than that of electrical heating systems. A north-facing room and a south-facing room were both selected to test whether the room temperatures met the heating requirements. The test results showed that the north-facing room had an average temperature over 17 °C while the south-facing room was over 20 °C, which illustrated that a good heating effect was achieved. Although a relatively high system COP was shown with a good heating effect for the solar heating system under the simultaneous charging and discharging operation mode, further recommendations were proposed for the mass flow rates of the solar collecting cycles and control stagey of the fan coil unit (FCU).

Suggested Citation

  • Xun Yang & Yong Wang & Teng Xiong, 2017. "Numerical and Experimental Study on a Solar Water Heating System in Lhasa," Energies, MDPI, vol. 10(7), pages 1-13, July.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:7:p:963-:d:104164
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    References listed on IDEAS

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    1. Elisa Moretti & Emanuele Bonamente & Cinzia Buratti & Franco Cotana, 2013. "Development of Innovative Heating and Cooling Systems Using Renewable Energy Sources for Non-Residential Buildings," Energies, MDPI, vol. 6(10), pages 1-16, October.
    2. Myeong Jin Ko, 2015. "Analysis and Optimization Design of a Solar Water Heating System Based on Life Cycle Cost Using a Genetic Algorithm," Energies, MDPI, vol. 8(10), pages 1-24, October.
    3. Luis R. Bernardo, 2013. "Retrofitting Conventional Electric Domestic Hot Water Heaters to Solar Water Heating Systems in Single-Family Houses—Model Validation and Optimization," Energies, MDPI, vol. 6(2), pages 1-20, February.
    4. Wei-Min Lin & Keh-Chin Chang & Yi-Mei Liu & Kung-Ming Chung, 2012. "Field Surveys of Non-Residential Solar Water Heating Systems in Taiwan," Energies, MDPI, vol. 5(2), pages 1-12, February.
    5. Mohan, Gowtham & Kumar, Uday & Pokhrel, Manoj Kumar & Martin, Andrew, 2016. "A novel solar thermal polygeneration system for sustainable production of cooling, clean water and domestic hot water in United Arab Emirates: Dynamic simulation and economic evaluation," Applied Energy, Elsevier, vol. 167(C), pages 173-188.
    6. Baeten, Brecht & Confrey, Thomas & Pecceu, Sébastien & Rogiers, Frederik & Helsen, Lieve, 2016. "A validated model for mixing and buoyancy in stratified hot water storage tanks for use in building energy simulations," Applied Energy, Elsevier, vol. 172(C), pages 217-229.
    7. Luis R. Bernardo & Henrik Davidsson & Björn Karlsson, 2012. "Retrofitting Domestic Hot Water Heaters for Solar Water Heating Systems in Single-Family Houses in a Cold Climate: A Theoretical Analysis," Energies, MDPI, vol. 5(10), pages 1-22, October.
    8. Zhang, Yin & Wang, Xin & Zhuo, Siwen & Zhang, Yinping, 2016. "Pre-feasibility of building cooling heating and power system with thermal energy storage considering energy supply–demand mismatch," Applied Energy, Elsevier, vol. 167(C), pages 125-134.
    9. Crespo Del Granado, Pedro & Pang, Zhan & Wallace, Stein W., 2016. "Synergy of smart grids and hybrid distributed generation on the value of energy storage," Applied Energy, Elsevier, vol. 170(C), pages 476-488.
    10. Mary B. Wilson & Rogelio Luck & Pedro J. Mago, 2015. "A First-Order Study of Reduced Energy Consumption via Increased Thermal Capacitance with Thermal Storage Management in a Micro-Building," Energies, MDPI, vol. 8(10), pages 1-17, October.
    11. Luis Ricardo Bernardo & Henrik Davidsson & Erik Andersson, 2016. "Retrofitted Solar Domestic Hot Water Systems for Swedish Single-Family Houses—Evaluation of a Prototype and Life-Cycle Cost Analysis," Energies, MDPI, vol. 9(11), pages 1-15, November.
    12. Myeong Jin Ko, 2015. "Multi-Objective Optimization Design for Indirect Forced-Circulation Solar Water Heating System Using NSGA-II," Energies, MDPI, vol. 8(11), pages 1-25, November.
    13. Alexandre Hugo & Radu Zmeureanu, 2012. "Residential Solar-Based Seasonal Thermal Storage Systems in Cold Climates: Building Envelope and Thermal Storage," Energies, MDPI, vol. 5(10), pages 1-14, October.
    14. Francesco Calise & Davide Capuano & Laura Vanoli, 2015. "Dynamic Simulation and Exergo-Economic Optimization of a Hybrid Solar–Geothermal Cogeneration Plant," Energies, MDPI, vol. 8(4), pages 1-41, April.
    15. Ievers, Simon & Lin, Wenxian, 2009. "Numerical simulation of three-dimensional flow dynamics in a hot water storage tank," Applied Energy, Elsevier, vol. 86(12), pages 2604-2614, December.
    16. Francesco Calise & Rafal Damian Figaj & Laura Vanoli, 2017. "Experimental and Numerical Analyses of a Flat Plate Photovoltaic/Thermal Solar Collector," Energies, MDPI, vol. 10(4), pages 1-21, April.
    17. Han, Y.M. & Wang, R.Z. & Dai, Y.J., 2009. "Thermal stratification within the water tank," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(5), pages 1014-1026, June.
    18. Spur, Roman & Fiala, Dusan & Nevrala, Dusan & Probert, Doug, 2006. "Performances of modern domestic hot-water stores," Applied Energy, Elsevier, vol. 83(8), pages 893-910, August.
    19. Tian, Y. & Zhao, C.Y., 2013. "A review of solar collectors and thermal energy storage in solar thermal applications," Applied Energy, Elsevier, vol. 104(C), pages 538-553.
    20. Myeong Jin Ko, 2015. "A Novel Design Method for Optimizing an Indirect Forced Circulation Solar Water Heating System Based on Life Cycle Cost Using a Genetic Algorithm," Energies, MDPI, vol. 8(10), pages 1-26, October.
    21. Francesco Calise & Massimo Dentice D'Accadia & Antonio Piacentino & Maria Vicidomini, 2015. "Thermoeconomic Optimization of a Renewable Polygeneration System Serving a Small Isolated Community," Energies, MDPI, vol. 8(2), pages 1-30, January.
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