| 논문명 |
이코노마이저시스템의 제어 방법 및 설정 변화에 따른 운전 성능 평가 / Evaluation of Operation Performance Depending on the Control Methods and Set Point Variation of the Economizer System |
| 수록사항 |
한국건축친환경설비학회 논문집, Vol.16 No.1 (2022-02) |
| 주제어 |
이코노마이저시스템; 건구온도제어; 엔탈피제어; 제어 설정값; 냉방 에너지 ; Economizer system; Dry bulb control; Enthalpy control; Control Setpoint; Cooling energy |
| 요약2 |
The economizer system may reduce cooling energy consumption by control the introduction of outside air. When controlling this system, the rate of outside air introduction is determined according to the introduction criteria and setpoints of outside air, and the operating performance varies. Therefore, in this study, the operation time and energy consumption were compared when the economizer system was controlled in four method: Fixed Dry Bulb Control, Different Dry Bulb Control, Fixed Enthalpy Control, and Differential Enthalpy Control. As a result, the operating time of the system also increased as the maximum limit value increased, but the operating time and energy consumption were not proportional. When the Maximum Limit was fixed, the energy consumption was the lowest when the Dry Bulb Temperature was 22°C, and when the Maximum Limit Enthalpy was 58.0 kJ/kg, the energy consumption was the lowest.
The economizer system can save energy from at least 13.47% to 15.84% for each control method, and Differential Enthalpy Control has the largest energy saving among the control methods. Enthalpy control is more effective in reducing energy consumption thandry bulb temperature control. |
