Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Study on the Fuzzy Control of CO2 Heat Pump System

이산화탄소 열펌프 시스템의 퍼지 제어에 관한 연구

  • Lee, Jae-Seung (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Han, Yung-Hee (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Kim, Min-Soo (School of Mechanical and Aerospace Engineering, Seoul National University)
  • 이재승 (서울대학교 기계항공공학부) ;
  • 한융희 (서울대학교 기계항공공학부) ;
  • 김민수 (서울대학교 기계항공공학부)
  • Published : 2008.11.21
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Abstract

In the air-conditioning and refrigeration industry, the efforts to protect the environment have been made. One of them is to use carbon dioxide as an alternative refrigerant, however, several researches have shown that the transcritical heat pump system using $CO_2$ has relatively lower efficiency resulting in a degraded steady-state system performance. Capacity control with fuzzy controller was carried out for $CO_2$ heat pump system. Evaporator secondary fluid outlet temperature was suggested for the control variable of compressor speed modulation.

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