期刊
JOURNAL OF BUILDING PERFORMANCE SIMULATION
卷 11, 期 1, 页码 36-47出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/19401493.2016.1269133
关键词
Bayesian network; condenser water set point; regression-based optimization; Modelica
资金
- U.S. Department of Defense under ESTCP
- Office of Building Technologies of the U.S. Department of Energy [DE-AC02-05CH11231]
- Brazilian Scientific Mobility Program
To implement the condenser water set point optimization, one can employ a regression model. However, existing regression-based methods have difficulties to handle non-linear chiller plant behaviour. To address this problem, we develop a Bayesian network model and compare it to both a linear and a polynomial regression model via a case study. The results show that the Bayesian network model can predict the optimal condenser water set points with a lower root mean square deviation for both a mild month and a summer month than the linear and the polynomial models. The energy-saving ratios by the Bayesian network model are 25.92% and 1.39% for the mild month and the summer month, respectively. As a comparison, the energy-saving ratios by the linear and the polynomial models are less than 19.00% for the mild month and even lead to more energy consumption in the summer month (up to 3.73%).
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