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Performance study of dual-source heat pump integrated with radiation capillary terminal system

Author

Listed:
  • Luo, Zhenyu
  • Zhu, Na
  • Yu, Zhongyi
  • Zhang, Qin
  • Yan, Lei
  • Hu, Pingfang

Abstract

The combination of ground source heat pump (GSHP) and air source heat pump (ASHP) improve the energy efficiency compared with single GSHP or ASHP system due to the complementary nature of seasons and the diversity of heat sources used. And the radiation capillary terminal (RCT) operates more stable and efficiency compared with fan coil due to the low temperature heat release and fast response speed. To fully use the advantage of renewable energy and RCT, a GSHP-ASHP system integrated with a RCT was proposed in this study. A mathematical model of the system based on TRNSYS was developed and verified by experiment in Wuhan (114°12′ E, 30°12′ N), China. Classification and regression tree (CART) algorithm was adopted as operation strategy of the GHSP-ASHP-RCT system. Compared with three air conditioning systems (electric refrigeration and gas boiler system, GSHP system and ASHP system), the primary energy utilization rate (PER) of the GHSP-ASHP-RCT system was increased by 4.5 %, 1.8 % and 10.0 %, respectively. The total life cycle cost (LCC) of the GHSP-ASHP-RCT system was reduced by 8.3 %, 20.6 % and 25.5 % than the three systems, respectively. It proved that the GHSP-ASHP-RCT system performed better on energy-saving and economy than the three systems.

Suggested Citation

  • Luo, Zhenyu & Zhu, Na & Yu, Zhongyi & Zhang, Qin & Yan, Lei & Hu, Pingfang, 2024. "Performance study of dual-source heat pump integrated with radiation capillary terminal system," Energy, Elsevier, vol. 304(C).
    • Handle: RePEc:eee:energy:v:304:y:2024:i:c:s0360544224019510
    DOI: 10.1016/j.energy.2024.132177
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