A Study On Optimized Design Of Indoor Thermal Environment For Residential Architecture Before And After Heating Period

As an important living place,residential architecture plays an important role in people's life.The research shows that poor indoor thermal comfort exists in Chinese residential buildings before and after heating period,and that residents generally express it is cold in houses and the relative humidity is high,which may easily cause discomfort.In addition,many other factors have adverse impacts on thermal comfort of human body.To ensure comfortable indoor temperature and humidity before and after heating period,residents mostly adopt artificial heating equipment which brings temperature rise but leads to relatively low indoor humidity.Thus,the humidifying device is required to regulate indoor comfort degree,which gives rise to energy waste.Therefore,deficiencies and misunderstandings still exist in the design of indoor thermal environment for residential architecture.Based on the above,this paper firstly introduces the research background,content,objective and significance,and sets forth domestic and overseas research achievements on indoor thermal environment and human thermal comfort field in order to ease architecture energy pressure and improve indoor thermal environment quality of residential architecture.Chapter II summarizes the overall climatic features of Tangshan,and analyzes meteorological parameters before and after heating period,development status and current situation of existing residential buildings in Tangshan City.On this basis,the questionnaire was developed to survey the residents in Tangshan in terms of basic personal information,dwelling environment and subjective feeling of indoor thermal environment,and the temperature interval of thermal comfort of the residents in Tangshan before and after heating period was obtained.Chapter III conducts the thermal environment test for a residence community in Tangshan,carries out field measurement of four thermal environments of indoor thermal environment before and after heating period,sums up thermal environment characteristics and defects of residential architecture in Tangshan during this period,proposes the suggestions to improve the envelope structure of buildings and provides a foundation for optimized design of architecture.Based on the survey and field measurement results,Chapter IV utilizes the software to implementsimulation analysis of envelope structure of buildings,including external envelope structure and window-wall ratio.Meanwhile,the influence of performance changes of the envelope structure on indoor thermal comfort is investigated.Finally,the influencing factors of envelope structure on thermal comfort of buildings are summarized,and the optimization scheme for the envelope structure suitable for Tangshan is proposed.Chapter V draws the conclusions,puts forward the prospect of the research,sums up the research results and proposes the deficiencies and problems to be solved in the further study.Based on the survey of urban residence in Tangshan,the test data and the problems discovered in the survey process,this paper starts from the actual situation of poor improvement of indoor thermal environment for current urban residence before and after heating period,analyzes questionnaire results and measurement data and combines local climatic features and residents' human thermal comfort demand to propose a basic objective of regarding indoor thermal comfort degree as the optimized design of envelope structure through software simulation.Besides,this paper strives to establish a set of complete energy-saving design mode for urban residence and provides a guiding strategy for improving the thermal environment of residential architecture in cold regions.