Building Curtain Wall Thermal Performance Analysis And Research In Guiyang

Guiyang area where the temperate regions of eastern region for the thermal climate district building,next to the hot summer and cold winter,with global warming,thermal climate the original partitioning objective has been not completely applicable to the area,some research papers and books have been the Guiyang area into the hot summer and cold winter,at the same time,the public buildings in Guiyang according to the area of hot summer and cold winter area requirements;for temperate regions,due to the long-term concept formed by the people,think climate condition in this area is better in energy conservation importance is not enough,resulting in delayed the construction of energy-saving work in this area,which leads to a large number of new buildings in the area such as the glass curtain wall,roof and other transparent envelope even,glass curtain wall building is also prevalent,energy consumption and a lot of transparent curtain wall building will be produced in the region Energy burden that can not be ignored.In the commonly used building curtain wall,glass curtain wall as the most widely used curtain wall has been favored by many architectural designers,and the glass curtain wall has great defects in thermal performance.Therefore,this paper takes Guizhou University with glass curtain walls of public buildings as the research object,analysis of the climate adaptability of thermal performance of various factors,to promote the work of relevant research in Guiyang area has more positive effect.In this paper,starting from the glass material,the thermal characteristics of the glass curtain wall thermal performance parameters are analyzed,and the energy saving materials and energy saving strategies with different materials are obtained.Then the thermal environment analysis center of Guizhou University library test results,obtained test results and existing problems of thermal environment analysis of the case,such as the use of Low-E glass,without shading in summer greenhouse effect;at the same time the Low-E glass to ensure the winter indoor thermal comfort has more positive effect,but this summer and the performance of different contradictions;there was no difference in the shade is appropriate design etc..Then to the library building as the object,using the software of DeST-C public version,simulation and analysis of influence factors on energy consumption and natural temperature;finally summarized and proposed can reduce the energy consumption of glass curtain wall construction in Guiyang area design strategy and the weight of each influence factor.Study on the surface area of Guiyang Low-E glass curtain wall,building energy consumption has been significantly reduced;but the high transparent Low-E glass Low-E glass compared to other types of poor performance,at the same time,shading settings will greatly influence the energy consumption performance,shading coefficient of external shading of public buildings in Guiyang that is not high,in contrast,better the South and west to the east room room shading effect,shading is not set correctly even increase the cumulative load,selection of thermal parameters of glass,shade selection,window wall ratio selection problem can not be generalized,therefore,must design method according to the climate conditions in the region to consider various factors to determine the building curtain wall the.Finally,put forward the heat transfer coefficient in Guiyang more adaptive glass,principle of choosing the shading coefficient,different feedback etc.different window wall ratio in different directions,provide a reference for research in the area of building energy-saving curtain wall.