Experimental Study on Energy Saving Performance of Outdoor Temperature Reset Control Strategy for Central Cooling System

중앙 냉방시스템에 대한 외기보상제어의 절약 성능에 관한 실험적 연구

  • Kim, Dong-Cheol (Department of Building Equipment System Engineering, graduate school, Kyungwon university) ;
  • Song, Jae-Yeob (Department of Building Equipment System Engineering, graduate school, Kyungwon university) ;
  • Ahn, Byung-Cheon (Department of Building Equipment System Engineering, Kyungwon university)
  • 김동철 (경원대학교 건축설비공학과 대학원) ;
  • 송재엽 (경원대학교 건축설비공학과 대학원) ;
  • 안병천 (경원대학교 건축설비공학과)
  • Received : 2011.10.12
  • Accepted : 2011.11.18
  • Published : 2011.12.01


In this study, energy saving performance of outdoor temperature reset control strategy for central cooling system is researched by experiments. Outdoor temperature reset control is the control method to change indoor air set temperature according to outdoor air temperature change. The range of indoor air set temperature is represented by the comfort temperature range of indoor air temperature offered from ASHRAE and indoor air set temperature is programmed between $22^{\circ}C$ and $27^{\circ}C$ by outdoor air temperature $20^{\circ}C{\sim}32^{\circ}C$ in summer. As a result of applying outdoor temperature reset control to central cooling system, the suggested control method shows better performances of energy savings than the conventional method which indoor temperature maintains constantly.


  1. Ahn, B. C., 2000, Optimal control algorithm of HVAC system for a DOC controller, academic lecture of automatic control, pp.35-39.
  2. Kim, S. D. and Lee, j., 2005, Recommended Practice for a Reasonable Design Demand Factor and Analysis of Power Consumption Characteristics by Loads in Office Building, Journal of the Korean Institute and Electrical Installation Engineers, Vol. 19, No.3, pp. 111 -118. https://doi.org/10.5207/JIEIE.2005.19.3.111
  3. Hong, S. S. and Song, J. Y. and Ahn B. C., 2010, Energy Saving Control Strategy For Central Heating System Using Outdoor Air Temperature Compensation, Proceedings of the SAREK 2010 Winter Annual Conference, pp. 505-510.
  4. Ahn, B. C. and Song, J. Y. and Joo, Y. D. and Kim, J., 2008, Real Time Near Optimal Control Application Strategy of Central Cooling System, SAREK pp.470-477.
  5. Ahn, B. C. and Mitchell, J. W., 2001, Optimal control development for chilled water plants using a quadratic representation, Energy and Buildings 33 Number 4, pp.371 - 378. https://doi.org/10.1016/S0378-7788(00)00119-5
  6. Gwak, D. Y., 2003, Lab VIEW Express : Control and measurement of computer based, Ohm publishing company, The Korea
  7. Cho, C. Y., 1992, Theory and Application of automatic control : technical education-9521- technology, LG-honeywell, The Korea, pp.115 -119.