Real Time Near Optimal Control Application Strategy of Central Cooling System

중앙냉방시스템의 실시간 준최적제어 적용에 따른 실험적 연구

  • Ahn, Byung-Cheon (Department of Building Equipment System Engineering, Kyungwon University) ;
  • Song, Jae-Yeob (Department of Building Equipment System Engineering, Kyungwon University) ;
  • Joo, Yong-Duk (Department of Building Services, Nara Controls Inc.) ;
  • Kim, Jin (Department of Building Services, Nara Controls Inc.)
  • 안병천 (경원대학교 건축설비공학과) ;
  • 송재엽 (경원대학교 건축설비공학과 대학원) ;
  • 주영덕 ((주)나라컨트롤) ;
  • 김진 ((주)나라컨트롤)
  • Published : 2008.07.10

Abstract

The near-optimal control algorithm for central cooling system has been developed for minimizing energy consumption while maintaining the comfort of indoor thermal environment in terms of the environmental variables such as time varying indoor cooling load and outdoor temperatures. The optimal set-points of control parameters with near-optimal control are supply air and chilled water temperatures. The near optimal control algorithm has been implemented by using LabVIEW program in order to analyze energy performance for central cooling control system.

Keywords

References

  1. Braun, J. E., S. A. Klein, W. A. Beckman, and J. W. Mitchell, 1989, Methodologies for Optimal Control of Chilled Water Systems without Storage, ASHRAE Transactions, Vol. 95, No. 1, pp. 652-662
  2. Zaheer-Uddin, M. and Zheng, G. R., 2001, Multistage optimal operating stategies for HVAC systems, ASHRAE Transaction, Vol. 107, No. 2, pp. 346-352
  3. Ahn, B. C. and J. W. Mitchell, 2001, Optimal control Development for Chilled Water Plant Using a Quadratic Representation, Energy and Buildings, Vol. 33, pp. 371-378 https://doi.org/10.1016/S0378-7788(00)00119-5
  4. Ahn, B. C. and J. W. Mitchell, 1999, Optimal Set-point Control for Central Cooling Plants, Society of Air Conditioning and Refrigerating Engineers of Korea, Summer Association Conference, pp. 1031-1036
  5. M. A. Cascia, 2000, Implementation of a nearoptimal global set point control method in a DDC controller, ASHRAE Transaction, Vol. 106, pp. 249-263