Economic analysis of circulating water system based on grey system theory

3rd International Conference on Energy Engineering and Environmental Protection

能源学;生态环境科学

Yang, Bin^1^2 ; Chen, Chi^2 ; Zhou, Jie^1 ; Zhao, Zhouli^1^2

School of Mechanical Engineering and Automation, Northeastern University, Shenyang

110819, China^1

China Baowu Steel Group Corporation Limited, Shanghai

201900, China^2

关键词: Circulating water system;    Cooling water systems;    Economic evaluations;    Economic performance;    Grey system theory;    Multilevels;    Weight functions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/227/4/042037/pdf
DOI  :  10.1088/1755-1315/227/4/042037

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, the multi-level grey system theory method is used to evaluate the economics of the circulating water system. Firstly, the influencing factors of each part are divided into different levels, and the weights of each factor are determined by using the analytic hierarchy process. Secondly, the influencing factors are divided into five commentary categories based on the Grey system theory. The whitening weight function of the grey class is established, and then the whitening value is calculated. Finally, the weight of the circulating water system belongs to each grey class, and the economic performance of the cooling water system is reasonably and objectively evaluated. Through the calculation and description of a specific example of the cooling water system, the economics of the whole cooling water system and various links are obtained. The economic evaluation results obtained by the analysis are in line with objective laws and provide a new way for the economic evaluation of the cooling water system.