Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on the Optimal Control Strategy of Air-Conditioning System with Slab Thermal Storage - Results Influenced by the Choice of a Criterion Function -

슬래브축열의 최적제어방책에 관한 연구 -평가함수의 선택이 결과에 미치는 영향-

  • Jung, Jae-Hoon (Advanced Building Science and Technology Research Center, Yonsei University) ;
  • Shin, Young-Gy (Department of Mechanical Engineering, Sejong University)
  • 정재훈 (연세대학교 건축과학기술연구소) ;
  • 신영기 (세종대학교 기계공학과)
  • Published : 2006.11.10
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Abstract

An optimal control of an air-conditioning system with slab thermal storage is investigated by making use of the Maximum Principle. An optimal heat input to a plenum chamber and an air-conditioned room is determined by minimizing a criterion function which is given as integral sum of two terms. The first term is the square of the deviation in the room air temperature from the set-point value, and the second is the absolute value of the heat input. The result indicates that it tries to keep a room air temperature in set-point value by heating as much as possible at the time of a setup of a room air temperature or just before that, in order to avoid a heat loss arising at the time of the non-air conditioning. The result is compared with that of the case when the square of the heat input is used as a criterion.

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References

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