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Potential to enhance performance of seawater-source heat pump by series operation

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  • Baik, Young-Jin
  • Kim, Minsung
  • Chang, Ki-Chang
  • Lee, Young-Soo
  • Ra, Ho-Sang

Abstract

In this study, the performance enhancement potential by series operation in seawater-source heat pump system, assumed installed in Gangneung city near the East Sea in Korea, was investigated. An annual heating load for a typical Korean-style apartment house, which has an effective area of about 85 m2, was modeled by using TRNSYS program. An ambient condition was assumed to be in accordance with the Korean standard meteorological data, while the seawater temperature was calculated from the regression equation based on the measurement. A heat pump performance at full-load was calculated from the regression equation, which involves refrigerant's evaporating and condensing temperatures, based on a commercial screw compressor performance map. A part-load performance was also considered. Simulation results show that an annual heating performance of a seawater-source heat pump system can be improved by 8% or more by series operation under the simulation conditions considered in the present study.

Suggested Citation

  • Baik, Young-Jin & Kim, Minsung & Chang, Ki-Chang & Lee, Young-Soo & Ra, Ho-Sang, 2014. "Potential to enhance performance of seawater-source heat pump by series operation," Renewable Energy, Elsevier, vol. 65(C), pages 236-244.
    • Handle: RePEc:eee:renene:v:65:y:2014:i:c:p:236-244
    DOI: 10.1016/j.renene.2013.09.021
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    Cited by:

    1. Wu, Zhenjing & You, Shijun & Zhang, Huan & Zheng, Wandong, 2020. "Model development and performance investigation of staggered tube-bundle heat exchanger for seawater source heat pump," Applied Energy, Elsevier, vol. 262(C).
    2. Eskafi, Majid & Ásmundsson, Ragnar & Jónsson, Steingrímur, 2019. "Feasibility of seawater heat extraction from sub-Arctic coastal water; a case study of Onundarfjordur, northwest Iceland," Renewable Energy, Elsevier, vol. 134(C), pages 95-102.
    3. Song, Yang & Peskova, Monika & Rolando, Davide & Zucker, Gerhard & Madani, Hatef, 2023. "Estimating electric power consumption of in-situ residential heat pump systems: A data-driven approach," Applied Energy, Elsevier, vol. 352(C).
    4. Anjan Rao Puttige & Staffan Andersson & Ronny Östin & Thomas Olofsson, 2021. "Application of Regression and ANN Models for Heat Pumps with Field Measurements," Energies, MDPI, vol. 14(6), pages 1-26, March.
    5. Zhongchao Zhao & Yanrui Zhang & Haojun Mi & Yimeng Zhou & Yong Zhang, 2018. "Experimental Research of a Water-Source Heat Pump Water Heater System," Energies, MDPI, vol. 11(5), pages 1-13, May.
    6. Wang, Dan-Yi & Wang, Xueqing & Ding, Ru-Xi, 2022. "Welfare maximization with the least subsidy: Pricing model for surface water loop heat pump PPP projects considering occupancy rate growth and coefficient of performance," Renewable Energy, Elsevier, vol. 194(C), pages 1131-1141.

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