Optimal Control of Air-Side Economizer

Jin-Hyun Lee and Young-Hum Cho ()
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Jin-Hyun Lee: Architecture Research Institute, Yeungnam University, Gyeongsan 38541, Republic of Korea
Young-Hum Cho: School of Architecture, Yeungnam University, Gyeongsan 38541, Republic of Korea

Energies, 2024, vol. 17, issue 21, 1-12

Abstract: The economizer system is a method of improving energy efficiency through the operating method, which introduces outdoor air through dampers when the outdoor air temperature or enthalpy is lower than the that of the indoor air. The set values used for economizer control include the mixed air temperature and high and low limits. The set values are presented as fixed values in the relevant standards and are controlled to be fixed during actual operation, which may lead to issues such as indoor discomfort, poor indoor air quality, and energy wastage. Therefore, it is necessary to optimize economizer control by determining appropriate set values considering the indoor and outdoor environments. To this end, this paper reviewed the economizer system, control method, control set values, and prediction models in buildings. As a result, it was concluded that optimal economizer control is possible by utilizing a prediction model.

Keywords: economizer control; air-side economizer; optimal control; prediction model (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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