Study On The Evaluation And Optimum Design Of Indoor Thermal Environment Of Rural Residence In Southwest Of Hubei Province Based On The Thermal Comfort Level

Under the background of the rapid development of social economy and the integration of urban and rural areas,the rapid development of China’s rural economy has driven a great number of rural residence construction.With the improvement of the living standard of rural residents,the living environment of rural houses in many areas has been difficult to meet the living needs of residents.Thus,there is an urgent need to conduct targeted research on the indoor thermal comfort to effectively improve the living quality of rural residents.This paper takes the rural houses in the southwest of Hubei Province as the research object,with the thermal comfort of local residents as the starting point,analyzes the existing problems in the thermal environment of the local residence and the thermal comfort level of local residents based on extensive field investigations,field measurement and questionnaire survey.This paper,starting from the reality of rural residence in southwestern Hubei,aiming at creating comfortable indoor thermal environment,this paper makes quantitative analysis through computer simulation,and summarizes the feasible indoor thermal environment optimization design strategy.The main research work of this paper is shown as follows:First of all,through the field survey of rural residence,the current characteristics,use situation and living habits of local residents of local residential buildings were understood.And three typical local residential buildings were selected for the field measurement of indoor thermal environment.Secondly,a field survey was conducted on the thermal comfort level of rural residents in southwestern Hubei.Based on the 387 valid questionnaires obtained,the qualitative and quantitative research on the thermal comfort characteristics and thermal environment needs of local residents in summer and winter was established.MTS model has been established to determine the neutral temperature,the acceptable temperature range and preference temperature.And the means for residents to adapt to the thermal environment is also analyzed.The thermally neutral temperature of local residents in summer is 26.0℃(t_o),and the acceptable temperature range is 22.3℃～29.7℃(t_o).The measured thermally neutral temperature in winter is 13.2℃(t_o),and the acceptable temperature range is 8.0～18.4℃(t_o).Thirdly,based on the current situation of rural residential thermal environment and the characteristics of residents’thermal comfort level,it is determined that the key to optimize the indoor thermal environment of local is to keep warm in winter,and to give proper consideration to heat prevention in summer.Combined with the characteristics of the local residence,this paper puts forward the optimization design method and strategy of the thermal environment.Taking the traditional residence with no courtyard as an example,and using the indoor uncomfortable hours as the evaluation index,the effects of different factors on the indoor thermal comfort level were discussed with the help of Energy Plus simulation software.Finally,based on the orthogonal test method,different factors that affect the indoor thermal environment are arranged in the test,the multi-factor and multi-level research is carried out to obtain the optimal combination plan with the premise of improving the indoor thermal comfort level,and the contribution degree of each influencing factor is sequenced,which can provide guidance for the rural residence construction in the Southwest of Hubei province.