@inproceedings{8b7eea5561614806a166fed7f7a62f76,
title = "Upper and lower threshold limit of chilled and condenser water temperature set-points during ANN based optimized control",
abstract = "In this study, an artificial neural network (ANN) based realtime predictive control and optimization algorithm for a chillerbased cooling system was developed and applied to an actual building to analyze its cooling energy saving effects through insitu application and actual measurements. For this purpose, we set the cooling tower's condenser water outlet temperature and the chiller's chilled water outlet temperature as the system control variables. During the analysis, unexpected abnormal data were observed due to insufficient training data and a limited consideration of the outdoor air wet-bulb temperature when determining the condenser water temperature set-point. Therefore, it is necessary to build training data under a wide range of conditions and to set the condenser water temperature set-point lower limit to be outdoor air wet-bulb temperature +3.6°C in the outdoor wet-bulb temperature region above 23°C, so that further energy savings can be achieved. ",
keywords = "ANN (artificial neural network), Chilled water temperature, Chiller, Condenser water temperature, Cooling tower, HVAC system, In-situ measurement",
author = "Yeon, {Sang Hun} and Kang, {Won Hee} and Lee, {Je Hyeon} and Song, {Kwan Woo} and Chae, {Young Tae} and Lee, {Kwang Ho}",
note = "Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) (No. 2019R1A2C2087157). Publisher Copyright: Copyright {\textcopyright} 2021 by ASME.; ASME 2021 15th International Conference on Energy Sustainability, ES 2021 ; Conference date: 16-06-2021 Through 18-06-2021",
year = "2021",
doi = "10.1115/ES2021-63997",
language = "English",
series = "Proceedings of the ASME 2021 15th International Conference on Energy Sustainability, ES 2021",
publisher = "American Society of Mechanical Engineers (ASME)",
booktitle = "Proceedings of the ASME 2021 15th International Conference on Energy Sustainability, ES 2021",
}
