IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v10y2017i7p963-d104164.html
   My bibliography  Save this article

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

Author

Listed:
  • 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
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/10/7/963/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/10/7/963/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. 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.
    2. 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.
    3. 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.
    4. 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.
    5. 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.
    6. 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.
    7. 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.
    8. 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.
    9. 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.
    10. 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.
    11. 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.
    12. 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.
    13. 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.
    14. 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.
    15. 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.
    16. 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.
    17. 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.
    18. 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.
    19. 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.
    20. 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.
    21. 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.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Xun Yang & Teng Xiong & Jing Liang Dong & Wen Xin Li & Yong Wang, 2017. "Investigation of the Dynamic Melting Process in a Thermal Energy Storage Unit Using a Helical Coil Heat Exchanger," Energies, MDPI, vol. 10(8), pages 1-18, August.
    2. 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.
    3. Sajid Mehmood & Serguey A. Maximov & Hannah Chalmers & Daniel Friedrich, 2020. "Energetic, Economic and Environmental (3E) Assessment and Design of Solar-Powered HVAC Systems in Pakistan," Energies, MDPI, vol. 13(17), pages 1-25, August.
    4. Pintaldi, Sergio & Perfumo, Cristian & Sethuvenkatraman, Subbu & White, Stephen & Rosengarten, Gary, 2015. "A review of thermal energy storage technologies and control approaches for solar cooling," Renewable and Sustainable Energy Reviews, Elsevier, vol. 41(C), pages 975-995.
    5. Zhang, Xingxing & Shen, Jingchun & Lu, Yan & He, Wei & Xu, Peng & Zhao, Xudong & Qiu, Zhongzhu & Zhu, Zishang & Zhou, Jinzhi & Dong, Xiaoqiang, 2015. "Active Solar Thermal Facades (ASTFs): From concept, application to research questions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 50(C), pages 32-63.
    6. Untrau, Alix & Sochard, Sabine & Marias, Frédéric & Reneaume, Jean-Michel & Le Roux, Galo A.C. & Serra, Sylvain, 2023. "A fast and accurate 1-dimensional model for dynamic simulation and optimization of a stratified thermal energy storage," Applied Energy, Elsevier, vol. 333(C).
    7. Anh Tuan Le & Liang Wang & Yang Wang & Ngoc Tuan Vu & Daoliang Li, 2020. "Experimental Validation of a Low-Energy-Consumption Heating Model for Recirculating Aquaponic Systems," Energies, MDPI, vol. 13(8), pages 1-20, April.
    8. Shan, Kui & Fan, Cheng & Wang, Jiayuan, 2019. "Model predictive control for thermal energy storage assisted large central cooling systems," Energy, Elsevier, vol. 179(C), pages 916-927.
    9. Calise, Francesco & de Notaristefani di Vastogirardi, Giulio & Dentice d'Accadia, Massimo & Vicidomini, Maria, 2018. "Simulation of polygeneration systems," Energy, Elsevier, vol. 163(C), pages 290-337.
    10. Carlos J. Porras-Prieto & Susana Benedicto-Schönemann & Fernando R. Mazarrón & Rosa M. Benavente, 2016. "Profitability Variations of a Solar System with an Evacuated Tube Collector According to Schedules and Frequency of Hot Water Demand," Energies, MDPI, vol. 9(12), pages 1-15, December.
    11. Mawire, Ashmore & Taole, Simeon H., 2011. "A comparison of experimental thermal stratification parameters for an oil/pebble-bed thermal energy storage (TES) system during charging," Applied Energy, Elsevier, vol. 88(12), pages 4766-4778.
    12. Tayyab, Muhammad & Cheema, Taqi Ahmad & Malik, Muhammad Sohail & Muzaffar, Atif & Sajid, Muhammad Bilal & Park, Cheol Woo, 2020. "Investigation of thermal energy exchange potential of a gravitational water vortex," Renewable Energy, Elsevier, vol. 162(C), pages 1380-1398.
    13. Calise, Francesco & Dentice d'Accadia, Massimo & Libertini, Luigi & Quiriti, Edoardo & Vicidomini, Maria, 2017. "A novel tool for thermoeconomic analysis and optimization of trigeneration systems: A case study for a hospital building in Italy," Energy, Elsevier, vol. 126(C), pages 64-87.
    14. Laura Canale & Anna Rita Di Fazio & Mario Russo & Andrea Frattolillo & Marco Dell’Isola, 2021. "An Overview on Functional Integration of Hybrid Renewable Energy Systems in Multi-Energy Buildings," Energies, MDPI, vol. 14(4), pages 1-33, February.
    15. Shukla, Ruchi & Sumathy, K. & Erickson, Phillip & Gong, Jiawei, 2013. "Recent advances in the solar water heating systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 19(C), pages 173-190.
    16. Uche, J. & Muzás, A. & Acevedo, L.E. & Usón, S. & Martínez, A. & Bayod, A.A., 2020. "Experimental tests to validate the simulation model of a Domestic Trigeneration Scheme with hybrid RESs and Desalting Techniques," Renewable Energy, Elsevier, vol. 155(C), pages 407-419.
    17. V. Tirupati Rao & Y. Raja Sekhar, 2023. "Hybrid Photovoltaic/Thermal (PVT) Collector Systems With Different Absorber Configurations For Thermal Management – A Review," Energy & Environment, , vol. 34(3), pages 690-735, May.
    18. 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.
    19. Buonomano, Annamaria & Calise, Francesco & Palombo, Adolfo & Vicidomini, Maria, 2019. "Transient analysis, exergy and thermo-economic modelling of façade integrated photovoltaic/thermal solar collectors," Renewable Energy, Elsevier, vol. 137(C), pages 109-126.
    20. Zhang, Xinjing & Chen, Haisheng & Xu, Yujie & Li, Wen & He, Fengjuan & Guo, Huan & Huang, Ye, 2017. "Distributed generation with energy storage systems: A case study," Applied Energy, Elsevier, vol. 204(C), pages 1251-1263.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:10:y:2017:i:7:p:963-:d:104164. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.