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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 -  

Jung, Jae-Hoon (Advanced Building Science and Technology Research Center, Yonsei University)
Shin, Young-Gy (Department of Mechanical Engineering, Sejong University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.18, no.11, 2006 , pp. 896-905 More about this Journal
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.
Keywords
Slab thermal storage; Optimal control; Maximum principle; Criterion function;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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