Study On Reconstruction Strategy Of Natural Ventilation Based On Spatial Configuration

Residential buildings during the period of Republic of China reflect the technical and cultural characteristics of the times and contain certain historical values.Due to the different historical background,construction technology and functional requirements of the buildings,the residential buildings during the period of Republic of China are quite different from the modern residential buildings in the level of spatial configuration.Under the influence of spatial configuration characteristics,indoor airflow distribution is more complex under natural ventilation conditions.Taking the historical building No.110 Beiting Lane in Nanjing as an example,based on the spatial configuration characteristics of residential buildings during the period of Republic of China,this paper summarizes the relationship between indoor natural ventilation and spatial configuration characteristics,and puts forward optimization strategies for natural ventilation according to the current conditions of the research object.Firstly,through field research,literature reading,information collection and other methods,the research discussed the pre-conditions of indoor and outdoor environment of the research object.It was found that the ventilation of the main functional space of the research object was sufficient,the average wind speed was high,but the proportion of comfortable wind speed area was insufficient,and the indoor air flow distribution was uneven.Determine the optimization objective of natural ventilation: based on adjusting controllable variables,increase the proportion of comfortable wind speed area in each room of the building to make the air distribution in the room more uniform.This paper summarizes the spatial configuration characteristics of residential buildings during the period of Republic of China from the aspects of plane shape,spatial relationship,opening rate,and opening form,and summarizes 11 quantifiable spatial configuration characteristic indicators.For the target room,the natural ventilation optimization simulation was carried out.Through individual effect analysis,comprehensive effect analysis,principal component analysis and other methods,the influence law of each controllable variable on the natural ventilation of the target room was studied.Based on the principal component analysis of spatial configuration,the correlation degree between spatial configuration characteristic indexes and indoor natural ventilation condition was analyzed.The comprehensive effect analysis of indoor natural ventilation under different working conditions of target rooms was carried out based on the relatively large correlation of spatial configuration characteristic indexes,and the comprehensive strategy of indoor natural ventilation optimization under the main wind environment conditions in Nanjing transition season was proposed.The full text is divided into five chapters.The first chapter is about asking questions.By introducing the research background,combing past studies,finding out the existing problems,and establishing research objectives and technical routes.The second chapter mainly discusses the pre-conditions of indoor and outdoor environment of No.110 Beiting Lane in the Republic of China,and makes clear the objective of optimization.The third chapter mainly summarizes the spatial configuration characteristic of residential buildings in the Republic of China,and establishes quantifiable spatial configuration characteristic indexes.In the fourth chapter,natural ventilation optimization simulation is carried out for the target room,and the influence law of controllable variables on natural ventilation is analyzed.In the fifth chapter,the research of this paper is summarized in stages,and the deficiencies are reflected and the thinking for future research is proposed.There are more than 46129 words,45 diagrams and 43 illustrations.