IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v54y2013icp20-25.html
   My bibliography  Save this article

Study on the LWT control schemes of a heat pump for hot water supply

Author

Listed:
  • Choi, Jong Min

Abstract

Heat pump systems have been widely used in buildings and industries due to their high performance. In this study, a leaving water temperature control scheme has been proposed for a water-to-water heat pump for hot water supply. The study was focused on the following four schemes: (1) using an auxiliary electric heater, (2) varying compressor speed, (3) adjusting water flow rate, and (4) adding heat to the secondary fluid flow of the heat source. With schemes (2) and (3), the system showed higher performance than other schemes. However, scheme (2) could not attain the appropriate LWT at low EWT heat source conditions. For all EWT conditions, using schemes (3) and (4) enabled the system to reach an appropriate LWT. Scheme (4) can be adopted as the best technology to control LWT, because it is not easy to vary flow rate of the secondary fluid as in scheme (3).

Suggested Citation

  • Choi, Jong Min, 2013. "Study on the LWT control schemes of a heat pump for hot water supply," Renewable Energy, Elsevier, vol. 54(C), pages 20-25.
    • Handle: RePEc:eee:renene:v:54:y:2013:i:c:p:20-25
    DOI: 10.1016/j.renene.2012.09.031
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148112006027
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2012.09.031?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Chua, K.J. & Chou, S.K. & Yang, W.M., 2010. "Advances in heat pump systems: A review," Applied Energy, Elsevier, vol. 87(12), pages 3611-3624, December.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Kebai Li & Tianyi Ma & Guo Wei, 2018. "Robust Economic Control Decision Method of Uncertain System on Urban Domestic Water Supply," IJERPH, MDPI, vol. 15(4), pages 1-15, March.
    2. Shin, Ji-Hyun & Cho, Young-Hum, 2024. "A variable water flow rate control method of hybrid geothermal heat pump systems," Renewable Energy, Elsevier, vol. 226(C).

    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. Sun, Fangtian & Fu, Lin & Sun, Jian & Zhang, Shigang, 2014. "A new waste heat district heating system with combined heat and power (CHP) based on ejector heat exchangers and absorption heat pumps," Energy, Elsevier, vol. 69(C), pages 516-524.
    2. Fredrik Skaug Fadnes & Reyhaneh Banihabib & Mohsen Assadi, 2023. "Using Artificial Neural Networks to Gather Intelligence on a Fully Operational Heat Pump System in an Existing Building Cluster," Energies, MDPI, vol. 16(9), pages 1-33, May.
    3. Jie, Ji & Jingyong, Cai & Wenzhu, Huang & Yan, Feng, 2015. "Experimental study on the performance of solar-assisted multi-functional heat pump based on enthalpy difference lab with solar simulator," Renewable Energy, Elsevier, vol. 75(C), pages 381-388.
    4. Sun, Fangtian & Fu, Lin & Sun, Jian & Zhang, Shigang, 2014. "A new ejector heat exchanger based on an ejector heat pump and a water-to-water heat exchanger," Applied Energy, Elsevier, vol. 121(C), pages 245-251.
    5. Nguyen, Hiep V. & Law, Ying Lam E. & Alavy, Masih & Walsh, Philip R. & Leong, Wey H. & Dworkin, Seth B., 2014. "An analysis of the factors affecting hybrid ground-source heat pump installation potential in North America," Applied Energy, Elsevier, vol. 125(C), pages 28-38.
    6. Kayaci, Nurullah, 2020. "Energy and exergy analysis and thermo-economic optimization of the ground source heat pump integrated with radiant wall panel and fan-coil unit with floor heating or radiator," Renewable Energy, Elsevier, vol. 160(C), pages 333-349.
    7. Giovanni Murano & Francesca Caffari & Nicolandrea Calabrese, 2024. "Energy Potential of Existing Reversible Air-to-Air Heat Pumps for Residential Heating," Sustainability, MDPI, vol. 16(14), pages 1-23, July.
    8. Aste, Niccolò & Adhikari, R.S. & Manfren, Massimiliano, 2013. "Cost optimal analysis of heat pump technology adoption in residential reference buildings," Renewable Energy, Elsevier, vol. 60(C), pages 615-624.
    9. Treichel, Calene & Cruickshank, Cynthia A., 2021. "Energy analysis of heat pump water heaters coupled with air-based solar thermal collectors in Canada and the United States," Energy, Elsevier, vol. 221(C).
    10. Balghouthi, M. & Chahbani, M.H. & Guizani, A., 2012. "Investigation of a solar cooling installation in Tunisia," Applied Energy, Elsevier, vol. 98(C), pages 138-148.
    11. Mohamed, Elamin & Riffat, Saffa & Omer, Siddig & Zeinelabdein, Rami, 2019. "A comprehensive investigation of using mutual air and water heating in multi-functional DX-SAMHP for moderate cold climate," Renewable Energy, Elsevier, vol. 130(C), pages 582-600.
    12. Li, Sihui & Gong, Guangcai & Peng, Jinqing, 2019. "Dynamic coupling method between air-source heat pumps and buildings in China’s hot-summer/cold-winter zone," Applied Energy, Elsevier, vol. 254(C).
    13. Li, Shuangjun & Deng, Shuai & Zhao, Li & Zhao, Ruikai & Yuan, Xiangzhou, 2021. "Thermodynamic carbon pump 2.0: Elucidating energy efficiency through the thermodynamic cycle," Energy, Elsevier, vol. 215(PB).
    14. Fabrizio, Enrico & Seguro, Federico & Filippi, Marco, 2014. "Integrated HVAC and DHW production systems for Zero Energy Buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 40(C), pages 515-541.
    15. Cai, Jingyong & Zhang, Feng & Ji, Jie, 2020. "Comparative analysis of solar-air dual source heat pump system with different heat source configurations," Renewable Energy, Elsevier, vol. 150(C), pages 191-203.
    16. Sichilalu, Sam & Mathaba, Tebello & Xia, Xiaohua, 2017. "Optimal control of a wind–PV-hybrid powered heat pump water heater," Applied Energy, Elsevier, vol. 185(P2), pages 1173-1184.
    17. Lillo-Bravo, I. & Bobadilla, M.A. & Moreno-Tejera, S. & Silva-Pérez, M., 2020. "A novel storage system for cooling stand-alone photovoltaic installations," Renewable Energy, Elsevier, vol. 155(C), pages 23-37.
    18. Lee, Zachary E. & Zhang, K. Max, 2021. "Scalable identification and control of residential heat pumps: A minimal hardware approach," Applied Energy, Elsevier, vol. 286(C).
    19. Michopoulos, A. & Papakostas, K.T. & Kyriakis, N., 2011. "Potential of autonomous ground-coupled heat pump system installations in Greece," Applied Energy, Elsevier, vol. 88(6), pages 2122-2129, June.
    20. Natanael Bolson & Maxim Yutkin & Tadeusz Patzek, 2023. "Primary Power Analysis of a Global Electrification Scenario," Sustainability, MDPI, vol. 15(19), pages 1-20, October.

    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:eee:renene:v:54:y:2013:i:c:p:20-25. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    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.