The optimal operation of cooling tower systems with variable-frequency control

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Cao, Yong^1 ; Huang, Liqing^2 ; Cui, Zhiguo^1 ; Liu, Jing^2

Institute of Building Environment and Energy, China Academy of Building Research, Beijing

100013, China^1

School of Civil and Resources Engineering, University of Science and Technology Beijing, 100083, China^2

关键词: Chiller system;    Energy performance;    Operating condition;    Optimal energy;    Optimal operation;    Optimum system performance;    Pump power;    Variable frequency control;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012085/pdf
DOI  :  10.1088/1755-1315/113/1/012085

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This study investigates the energy performance of chiller and cooling tower systems integrated with variable-frequency control for cooling tower fans and condenser water pumps. With regard to an example chiller system serving an office building, Chiller and cooling towers models were developed to assess how different variable-frequency control methods of cooling towers fans and condenser water pumps influence the trade-off between the chiller power, pump power and fan power under various operating conditions. The matching relationship between the cooling tower fans frequency and condenser water pumps frequency at optimal energy consumption of the system is introduced to achieve optimum system performance.