Night Purge Control Strategies With Outdoor Air Temperature Conditions for Central Cooling System

중앙냉방시스템의 외기온도조건을 고려한 나이트 퍼지 제어방안에 관한 연구

  • Hwang, Jin-Won (Dept. of Building Equipment & System Engineering, Graduate School of Gachon University) ;
  • Ahn, Byung-Cheon (Dept. of Mechanical Engineering, Gachon University)
  • 황진원 (가천대학교 건축설비공학과 대학원) ;
  • 안병천 (가천대학교 기계공학과)
  • Received : 2015.08.18
  • Accepted : 2015.10.08
  • Published : 2015.10.31


In this study, the effects of control strategies of night-purge control system on control characteristics and energy consumption for central cooling system in building are researched by simulation. The start time and set-point temperature for night-purge control with outdoor temperature changes and building cold storage performance are obtained. The system analysis modelling is done by using TRNSYS program package, and the control performances with suggested night-purge control method are compared with the existing control ones. As a result, the suggested night-purge control method shows maximum 16.8% and 28.6% energy saving in comparison with existing control method and conventional one without night-purge control, respectively.


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