The Study On Comprehensive Evaluation System Of Indoor Environment Of Passive House

In order to build a comfortable and healthy living environment,improve the quality of life of residents’ and the health protection agency Ming,put forward a kind of conform to the passive house property,residential indoor environment characteristic and the residents living preferences passive home indoor environment,a comprehensive evaluation system is a passive room is one of the problems that need to be solved in the process of development,it is different method of passive home indoor environment quality evaluation,it will be for people to choose passive room and optimize passive room indoor environment to provide the reference and guidance,the establishment of the evaluation system will vigorously promote the development of the passive house.In this paper,a passive house indoor environment evaluation index system and a multi-level grey clustering comprehensive evaluation model are constructed by combining literature review and field monitoring,and a passive house in Hefei city,Anhui Province is selected for example analysis and verification.The main research results are as follows:(1)According to the composition of indoor environmental impact factors and combined with the characteristics of passive houses,a three-level hierarchical indoor environmental index system of passive houses is constructed.The index system is divided into target layer,criterion layer and index layer.The target floor represents the overall condition of the interior environment of the passive house.The criterion layer is divided into four aspects: wet and hot environment,light environment,sound environment and air quality.The index layer preselects 16 indexes that can be quantized.The characterization methods of relevant evaluation indexes and their corresponding evaluation criteria are determined.(2)In order to put the test data of each index into the evaluation model according to a certain weight,this paper uses entropy weight method,analytic hierarchy process and combination weight method to weight each index.The weight of analytic hierarchy process(AHP)is obtained by questionnaire survey of relevant experts in this field;the weight of entropy weight method is obtained by indoor environment detection of a passive house in yunshuiwan community of Hefei City,Anhui Province.Finally,the combination weight method is used to combine AHP with entropy weight method to calculate the combination weight.According to the Spearman rank coefficient to calculate the compatibility of various methods,after comparing the size,it is determined that the combination weight method is most in line with the actual situation,so the combination weight method is selected to weight each index.(3)The testing data according to certain weight to the indicators into evaluation model,this paper USES the entropy weight method,analytic hierarchy process(ahp)and the combination weighting method respectively to various indicators of empowerment,through a variety of methods for calculating coefficients of spearman rank compatible degree,after contrast size,determine the combination weighting method of empowerment is most conforms to the actual situation,then choose combination weighting method to empower the indicators.(4)The advantages and disadvantages of various evaluation methods are compared,and the grey clustering method is selected as the final evaluation method.The grey clustering evaluation model is constructed,and the steps of model construction are shown: determine the grey clustering,extend one grey clustering in each direction,give the central point of each grey clustering,calculate the clustering coefficient through the triangular whitening weight function of the central point,and finally determine the grey clustering of the indoor environment of the passive house according to the principle of maximum membership degree.(5)An example verification and analysis of the evaluation model is carried out.The indoor environment of a passive house in Wenyi Jindi rich family in Hefei City,Anhui Province is tested and evaluated,and the evaluation result is that the indoor environment assessment grade is "qualified".In addition,through the analysis of the problems existing in the indoor environment of this passive room,some suggestions for optimizing the indoor environment of the passive room are put forward.