Research On Energy-Saving Transformation Technology Of Kindergarten Building Envelope In Xuzhou

In modern society,where the proportion of building energy consumption is increasing day by day,deepening the work of building energy-saving transformation has become an urgent new issue in the high-quality development of buildings in China.Compared to other public buildings,although kindergarten buildings are small in area and scale,they have high requirements for indoor comfort,resulting in an increase in energy consumption such as heating and cooling.Therefore,it is necessary to study the energy-saving transformation of kindergarten buildings,not only to create a green campus,but also to build a conservation-oriented society and achieve the goal of sustainable development.This article selects the existing kindergarten buildings in Xuzhou City as the research object.Through systematic research on the enclosure structure of kindergarten buildings,it is found that there are defects in relevant thermal performance,and the energy-saving level needs to be further improved.Based on the thermal performance parameters in the reference specifications,this thesis conducts research on energy-saving renovation of kindergarten building envelope structures,analyzes various renovation schemes from the perspective of renovation technology and economy,and finds the optimal energy-saving renovation combination scheme suitable for Xuzhou City.Firstly,a survey and thermal analysis were conducted on the current situation of the enclosure structures of kindergartens built in different periods in Xuzhou City,identifying the problems.After energy-saving diagnosis,it was determined to renovate kindergartens built before 2015.Secondly,in response to the design requirements for energy-saving renovation of kindergarten building envelope structures,suitable technologies for energy-saving renovation of kindergarten building envelope structures in Xuzhou City were proposed,and the applicability of each technology was summarized,making a theoretical foundation be established for the following research.Then,select typical kindergarten buildings,use the PKPM simulation software,and use the Control variates to study the power consumption and energy saving rate of each type in the single envelope reconstruction scheme.It is concluded that the optimal thickness of the external wall and roof reconstruction insulation layer is 65-95mm;The renovation of the outer window adopts a heat-resistant aluminum alloy double cavity sealed profile window frame,and the glass system adopts four combination schemes: 6 high transmittance Low-E+12A+6,6 high transmittance Low-E+12AR+6,6 high transmittance Low E+12A+6+12A+6,and 6 high transmittance Low E+12AR+6+12A+6;The best shading effect is achieved through the use of movable roller blinds in shading renovation.Finally,orthogonal experiments were conducted on each individual renovation plan,and the balance judgment method was used to simulate and analyze them.Economic analysis was conducted on the plans that meet the requirements of the reference specifications,and the optimal renovation combination plan was obtained.It is hoped that this can provide some valuable references for the energy-saving renovation work of the kindergarten building enclosure structure in Xuzhou City.This thesis has 65 figures,52 tables and 80 references.