Journal of the Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회논문집)

Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회)
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Analytical Study on the Optimal Operating Control of A Hybrid Geothermal Plant

지열복합 열원가기 최적운전채어에 관한 해석적 연구

  • Jeon, Jong-Ug (INNOGEO Technologies, System Development Division) ;
  • Park, Jong-Sam (INNOGEO Technologies, System Development Division) ;
  • Myung, Woo-Ho (INNOGEO Technologies, System Development Division) ;
  • Kim, Young-Ki (Fire & Engineering Services Research Dept, Korea Institute qf Construdion Technology) ;
  • Kim, Yong-Chan (Department of Mechanical Engineering, Korea University)
  • 전종욱 (이노지오테크놀로지 시스템개발부) ;
  • 박종삼 (이노지오테크놀로지 시스템개발부) ;
  • 명우호 (이노지오테크놀로지 시스템개발부) ;
  • 김용기 (한국건설기술연구원 화재 및 설비연구부) ;
  • 김용찬 (고려대학교 기계공학과)
  • Received : 2010.10.28
  • Accepted : 2010.11.08
  • Published : 2010.12.01
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Abstract

The objective of this study is to find the optimal control algorithm of a hybrid Plant, which is combined by renewable energy plant of the GSHP(Geothermal Source Heat Pump) and the normal plant (Chiller, boiler). The work presented in this study was carried out in the EnergyPlus(Version 2.0). The EnergyPlus was modified in order to simulate the hybrid plant. The plant system was controlled by the load-range-based operation in which schemes select a user specified set of equipment for each user specified range of a particular simulation condition. In the use of the load-range-based operation, four kind of control cases were defined and simulated in order to obtain the optimal control algorithm of the hybrid plant. The result showed that the Case 2 was the optimal control algorithm which used the GSHP as a base operating plant and the normal plant as an assistant operating plant. Even though the normal plant was operated in full load and the renewable energy plant of the GSHP was operated in partial load, the annual energy consumption of the normal plant was larger than that of the GSHP plant.

Keywords

References

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