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Energy efficiency and economic performance of a low-temperature heating system combining double-layer pipe-embedded wall and ground source heat pump

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  • Zhao, Yaxin
  • Li, Xianting

Abstract

Reducing heating energy consumption in buildings is a crucial step towards a low-carbon future. The energy efficiency of heat pump heating systems can be improved by reducing the water supply temperature of terminals. However, existing terminals are limited in using lower-temperature hot water and leaves potential for energy savings. Therefore, this study proposes a double-layer pipe-embedded wall heating system coupled to a ground source heat pump. The outer pipes use shallow geothermal energy to reduce envelope load, whereas the inner pipes use water produced by the heat pump to provide heating. Energy, economic, and carbon emission analysis models of the proposed system are developed. A residential heating case study is conducted in Harbin, Shenyang, Beijing, Zhengzhou, and Shanghai to investigate the performance of the proposed system. The results show that the proposed system achieves much lower-temperature heating than the reference floor heating system. The seasonal energy savings of the proposed system in the selected cities are 12%–18%, with a SCOP of 4.0–5.8. The dynamic payback period of the proposed system is 1.6–4.3 years and the CO2 emission intensity is reduced by 1.2–3.2 kg/m2. This study provides an insight into the application of double-layer pipe-embedded wall heating systems.

Suggested Citation

  • Zhao, Yaxin & Li, Xianting, 2025. "Energy efficiency and economic performance of a low-temperature heating system combining double-layer pipe-embedded wall and ground source heat pump," Renewable Energy, Elsevier, vol. 239(C).
    • Handle: RePEc:eee:renene:v:239:y:2025:i:c:s0960148124021554
    DOI: 10.1016/j.renene.2024.122087
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    References listed on IDEAS

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    1. Gao, Jiajia & Li, Anbang & Xu, Xinhua & Gang, Wenjie & Yan, Tian, 2018. "Ground heat exchangers: Applications, technology integration and potentials for zero energy buildings," Renewable Energy, Elsevier, vol. 128(PA), pages 337-349.
    2. Ibrahim, Mohamad & Wurtz, Etienne & Biwole, Pascal Henry & Achard, Patrick, 2014. "Transferring the south solar energy to the north facade through embedded water pipes," Energy, Elsevier, vol. 78(C), pages 834-845.
    3. Song, Mengjie & Deng, Shiming & Dang, Chaobin & Mao, Ning & Wang, Zhihua, 2018. "Review on improvement for air source heat pump units during frosting and defrosting," Applied Energy, Elsevier, vol. 211(C), pages 1150-1170.
    4. Wu, Wei & Li, Xianting & You, Tian & Wang, Baolong & Shi, Wenxing, 2015. "Combining ground source absorption heat pump with ground source electrical heat pump for thermal balance, higher efficiency and better economy in cold regions," Renewable Energy, Elsevier, vol. 84(C), pages 74-88.
    5. Zhao, Yaxin & Wang, Huan & Li, Xianting, 2025. "Field test on the thermal performance of double-layer pipe-embedded wall heating system with shallow geothermal energy and air source heat pump," Applied Energy, Elsevier, vol. 377(PD).
    6. Man, Yi & Yang, Hongxing & Wang, Jinggang, 2010. "Study on hybrid ground-coupled heat pump system for air-conditioning in hot-weather areas like Hong Kong," Applied Energy, Elsevier, vol. 87(9), pages 2826-2833, September.
    7. Sun, Hongli & Duan, Mengfan & Yang, Zixu & Ding, Pei & Wu, Yifan & Lin, Borong, 2023. "Evaluation of the intermittent performance of heating terminals based on exergy analysis: Discriminate the impacts of heat and electricity input," Applied Energy, Elsevier, vol. 346(C).
    8. Lyu, Weihua & Li, Xianting & Yan, Shuai & Jiang, Sihang, 2020. "Utilizing shallow geothermal energy to develop an energy efficient HVAC system," Renewable Energy, Elsevier, vol. 147(P1), pages 672-682.
    9. You, Tian & Wu, Wei & Shi, Wenxing & Wang, Baolong & Li, Xianting, 2016. "An overview of the problems and solutions of soil thermal imbalance of ground-coupled heat pumps in cold regions," Applied Energy, Elsevier, vol. 177(C), pages 515-536.
    10. Duan, Mengfan & Sun, Hongli & Wu, Shuangdui & Wu, Yifan & Lin, Borong, 2023. "A simplified model for the evaluation and comparison of the dynamic performance of different heating terminal types," Energy, Elsevier, vol. 263(PD).
    11. Mi Zhou & Hongxun Liu & Liqun Peng & Yue Qin & Dan Chen & Lin Zhang & Denise L. Mauzerall, 2022. "Environmental benefits and household costs of clean heating options in northern China," Nature Sustainability, Nature, vol. 5(4), pages 329-338, April.
    12. Li, Xianting & Lyu, Weihua & Ran, Siyuan & Wang, Baolong & Wu, Wei & Yang, Zixu & Jiang, Sihang & Cui, Mengdi & Song, Pengyuan & You, Tian & Shi, Wenxing, 2020. "Combination principle of hybrid sources and three typical types of hybrid source heat pumps for year-round efficient operation," Energy, Elsevier, vol. 193(C).
    13. Gillich, Aaron & Godefroy, Julie & Ford, Andy & Hewitt, Mark & L'Hostis, Jonathan, 2022. "Performance analysis for the UK's first 5th generation heat network – The BEN case study at LSBU," Energy, Elsevier, vol. 243(C).
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