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Article type: Research Article
Authors: Sun, Yong | Liu, Congcong | Sang, Ming | Niu, Jinhua | Xu, Huixuan | Xu, Feng*
Affiliations: Department of Energy Engineering, Hebei University of Architecture, Zhangjiakou, Hebei, China
Correspondence: [*] Corresponding author: Feng Xu, Department of Energy Engineering, Hebei University of Architecture, Zhangjiakou, Hebei 075000, China. E-mail: wxfxf1978@126.com.
Abstract: By analyzing the electric heated solid thermal storage and supply unit, a performance index system consisting of three level-I indexes(including thermal storage capacity, thermal release capacity and unit efficiency) and eight level-II indexes (including thermal storage temperature uniformity, thermal storage completion degree, etc.) is established, to evaluate the performance of the unit. Taking the electric heated solid thermal storage and supply unit of one shopping mall in Zhangjiakou city as an evaluation object, the combination weighting is used to combine the variable coefficient method, entropy weight method and analytic hierarchy process, and obtain a reasonable weighted value. Then, fuzzy comprehensive evaluation method is used to acquire the performance evaluation grade of this boiler unit, and optimization proposals are raised according to the evaluation results.
Keywords: Electric heated solid thermal storage and supply unit, performance evaluation system, comprehensive evaluation method, optimization
DOI: 10.3233/JCM-215076
Journal: Journal of Computational Methods in Sciences and Engineering, vol. 21, no. 5, pp. 1531-1547, 2021
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