Chilled water temperature set-point reset based on outdoor air temperature and its cooling energy performance in an office building

被引：0
作者：
Young Jun Lee
Sung Hyup Hong
Jong Man Lee
Yeo Beom Yoon
Jong Min Choi
Kwang Ho Lee
机构：
[1] Korea University,Department of Architecture, College of Engineering
[2] Oak Ridge National Laboratory,Electrification and Energy Infrastructure Division
[3] Hanbat National University,Department of Mechanical Engineering
来源：
Journal of Mechanical Science and Technology | 2022年 / 36卷
关键词：
AHU (air handling unit); Chilled water temperature set-point; Cooling energy; Outdoor air temperature compensation control; VAV (variable air volume);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, the cooling energy performance of two strategies for controlling ChWT (chilled water temperature) are compared: the conventional control strategy of constantly fixing ChWT and the OAT (outdoor air temperature) compensation control strategy that adjusts ChWT according to the changes in OAT. OAT compensation control strategy was modeled and realized based on Appendix G of ASHRAE Standard 90.1. It was confirmed that applying OAT compensation control strategy can significantly reduce chiller energy consumption, which accounts for the largest portion of total cooling energy consumption. It was found that the difference in total cooling energy consumption between applying the conventional control of constantly fixing ChWT to 6 °C and applying the OAT compensation control was approximately 8 % and 3 % during spring (March to May) and summer (June to August), respectively. Additionally, during the fall (September–November) period, about 7 % of total cooling energy consumption could be saved.
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页码：1557 / 1568
页数：11
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