Effect of Charged Refrigerant Amount on Operating Characteristics and Development of Detecting Program for System Air-Conditioner

시스템에어컨의 냉매충전량에 따른 사이클 운전특성 및 냉매량 판독 프로그램 개발

  • Tae, Sang-Jin (Graduate School, School of Mechanical Engineering, Sungkyunkwan University) ;
  • Kim, Hun-Mo (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Mun, Je-Myeong (System Appliances Division, Samsung Electronics Co. Ltd.) ;
  • Kim, Jong-Yeop (System Appliances Division, Samsung Electronics Co. Ltd.) ;
  • Gwon, Hyeong-Jin (System Appliances Division, Samsung Electronics Co. Ltd.) ;
  • Jo, Geum-Nam (School of Mechanical Engineering, Sungkyunkwan University)
  • 태상진 (성균관대학교 대학원) ;
  • 김훈모 (성균관대학교 기계공학부) ;
  • 문제명 (삼성전자 시스템가전 사업부) ;
  • 김종엽 (삼성전자 시스템가전 사업부) ;
  • 권형진 (삼성전자 시스템가전 사업부) ;
  • 조금남 (성균관대학교 기계공학부)
  • Published : 2005.11.25

Abstract

This study developed a program for detecting charged refrigerant amount in system air-conditioner. System air-conditioner is an air-conditioning system with multiple indoor units. Due to the complexity of the system, it is more difficult to detect the refrigerant amount charged in system air-conditioner than in a general single air-conditioner. Experiments were performed for 6 HP outdoor units with 3 indoor units in a psychrometric calorimeter. The experimental amount of charged refrigerant were ranged from 60% to 140% with 10% increasement. Fuzzy algorithm were emploeed for detecting the charged refrigerant amount in a system air-conditioner. The experimental data were used for curve fitting for general ranges for indoor and outdoor temperature conditions. membership function were determined for whole ranges of experimentally measured data and rulebase were defined for each amount of refrigerant charge. Developed program successfully predicted the measured data within 10% resolution range.

Keywords