基于模糊综合评价的户式空调系统优选方案评估方法

An Evaluation Methods for Preferred Residential Air Conditioning System Based on Fuzzy Comprehensive Assessment

针对户式空调系统性能常用评价方法存在评价指标不全面、评价过程复杂及评价结果主观性强等不足,提出1种户式空调系统性能模糊综合评价方法。考虑空调行业绿色低碳的发展要求,在原有评价指标的基础上增加室外环境及技术特性相关指标,采用层次分析法建立户式空调系统性能评价指标体系,采用专家调查法和信息熵法分别对指标权重进行赋值和修正,采用分布函数法和等级比重法分别对定量和定性指标进行隶属度计算,最后进行模糊综合评价。以多联机和热湿分控2种典型户式空调系统为例,分别采用层次分析法和本文方法进行评价,验证本文方法的科学合理性。结果表明:2种评价方法对多联机和热湿分控方案的综合评定等级均为Ⅱ级,对于层次分析法,综合评价值分别为53.72,53.43,2种方案的评价结果几乎一致,2种方案没有明显优劣,难以为空调选型提供参考;对于本文方法,2种方案的评价结果差值明显,可为空调选型提供参考,这是因为本文方法的评价指标更全面,且在模糊评价法和信息熵法的作用下完成复杂问题的量化,可弥补评价过程复杂和评价结果主观性强的不足。

In view of the shortcomings of common evaluation methods for evaluating residential air conditioning systems,such as incomplete evaluation indicators,complex evaluation processes,and subjective evaluation results,a fuzzy comprehensive evaluation method for residential air conditioning system performance was proposed.Considering the green and low-carbon development requirements of the air conditioning industry,additional indicators related to the outdoor environment and technical characteristics were included in the original evaluation indicators.The analytic hierarchy process(AHP)was used to establish performance evaluation index system for residential air conditioning systems.The expert survey method and information entropy method were used to assign and revise the weights of the indicators,respectively.The distribution function method and grade proportion method were used to calculate the membership for quantitative and qualitative indicators,respectively.Finally,the fuzzy comprehensive evaluation was carried out.Taking two typical residential air conditioning systems,namely multi-split and temperature-humidity independent control systems,as examples,evaluations were conducted using both by AHP and the method proposed in this paper to verify the scientific rationality of the proposed method.The results show that the comprehensive evaluation grade of the two evaluation methods for multi-split systems and temperature-humidity independent control systems are both gradeⅡ.For the AHP,the comprehensive evaluation values are 53.72 and 53.43,respectively,showing almost identical evaluation results for the two solutions,indicating no obvious superiority or inferiority,and making it is difficult to provide references for the air conditioner selection.In contrast,the evaluation results using the method proposed in this paper show a significant difference,providing useful references for the air conditioner selection.This is because the evaluation indexes used in this paper are more comprehensive,and the quantification of complex problems are completed under the function of fuzzy evaluation method and information entropy method,which can make up for the shortcomings of complex evaluation process and strong subjective evaluation results.