Research On Energy-saving Design Strategies Of Fujian Nanjing Tulou Based On Energy Consumption Simulation

The "Thirteenth Five-Year Plan" pointed out that what is urgently needed to be solved is the daily life of residents in rural areas.Through investigation and research on traditional buildings,the local traditional houses can be better improved and the tertiary industry can be developed.Culture has important research significance.In this paper,Fujian Tulou is taken as the research object,which is based on local materials.When discarded,it is attributed to nature.It does not pollute the environment.Environmental protection is a significant label for Tulou.It has little impact on local environmental resources.However,the existing Tulou cannot meet the needs of modern people for health,Light and comfort requirements.This paper proposes an energy-saving design strategy aiming at the construction technology of the Nanjing Tulou building in Fujian,which can not only meet the requirements of rural residents on the living conditions,but also reduce the waste of resources,which is conducive to the energy-saving renovation and sustainable development of traditional houses.First,a detailed investigation and study was carried out on the Huaiyuan Building in Nanjing,collecting and collating data on the status quo,construction technology and indoor thermal environment of the Tulou residential buildings in Fujian.Through questionnaire surveys of local residents,the overall optimal design ideas were determined,and the thermal performance analysis of each component of the Huaiyuan Building was conducted.It is concluded that the heat transfer coefficient of the wall of the earth building meets the standard,but the external shading coefficient,window-to-ground ratio,external window heat transfer coefficient,external window heat transfer coefficient and shading coefficient,and roof heat transfer coefficient do not meet the standard requirements,so the building needs to be The thermal engineering trade-off judgment calculation of the envelope structure.Secondly,through analysis and calculation,the indoor lighting of Huaiyuan Building does not meet the green building standards and specifications.Therefore,the orthogonal test method was used to perform energy-saving renovations on the four aspects of roof structure,window glass,external sunshade,and window size.There are 9 transformation schemes using PKPM The simulation software performs energy consumption simulation on the Huaiyuan Building before and after the renovation.The simulation results are used to select the energy-saving design plan and the best energy-saving rate plan.After the transformation,the energy consumption drops significantly.Considering comprehensively the energy saving rate and economic efficiency of the enclosing structure transformation plan,the transformation plan with the highest priority is obtained,and the indoor temperature changes before and after the transformation are simulated to verify the feasibility of the energy conservation plan.Finally,based on the PKPM simulation software input corresponding parameters,the PMV and PPD values are obtained through calculation.By comparing the PMV and PPD values before and after the transformation,the indoor thermal environment of the earth building has been significantly improved after the transformation.The research conclusion can provide a reference for the energy-saving design of Fujian earth building.