Using the fuzzy multi-criteria model to select the optimal cool storage system for air conditioning

• Published in: Energy and buildings Vol. 40; no. 11; pp. 2059 - 2066
• Main Authors: Wang, Jiang-Jiang, Zhang, Chun-Fa, Jing, You-Yin, Zheng, Guo-Zhong
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier B.V 2008; Elsevier
• Subjects: Applied sciences; Building technical equipments; Buildings; Buildings. Public works; Combination weighting method; Computation methods. Tables. Charts; Cool storage system; Entropy weighting method; Environmental engineering; Exact sciences and technology; Fuzzy multi-criteria model; Structural analysis. Stresses; Ventilation. Air conditioning; Fuzzy multi-criteria model; Entropy weighting method; Combination weighting method; Cool storage system; Air conditioning; Fuzzy logic; Numerical analysis; Weighting; Multicriteria analysis; System description; Theoretical study; Cold storage unit; Cool storage system;Fuzzy multi-criteria model;Entropy weighting method;Combination weighting method; Modeling
• ISSN: 0378-7788
• DOI: 10.1016/j.enbuild.2008.05.011

Four existing cool storage systems for air conditioning, chilled water storage, ice storage, phase change material cool storage and high temperature water cool storage, are evaluated and compared in multi-criteria. Due to the availability and uncertainty of qualitative criteria, this paper presents a fuzzy multi-criteria model to select the optimal cool storage system. In the evaluation process, the optimal weighting method combines the subjectivity of decision-maker and the objectivity of numerical data to obtain the comprehensive weights of criteria and avoids the subjective one-sidedness of weights. The fuzzy multi-criteria model applied to select the best cool storage system in detail demonstrates the evaluation process and its applicability in selecting an optimal system. The evaluation results indicate that ratio of cooling density and ratio of cooling capacity are the most important factors in cool storage systems, and ice cool storage system is the optimal option.