Structure And Thermal Performance Analysis Of Open Frame Glass Curtain Wall

In an increasingly advocating "green building" theory and the sustainable development of building energy conservation today,Ming frame glass curtain wall has uniqueness in the visual and aesthetic,but also indicates some deficiencies in application performance,large energy consumption of which is the main problem.The study on the structure and thermal performance of open-frame glass curtain wall must consider its thermal performance.Papers in the study of Ming frame glass curtain wall structure based on the logic,the Ming frame glass curtain wall thermal performance calculation method were analyzed,and the content mainly includes three aspects: first,the analysis of structural logic and material performance influence on frame glass curtain wall thermal performance,clear bright frame glass curtain wall thermal properties of the main influence parameters;Next to the sun radiation model,optical calculation model,the natural ventilation airflow model as an example,this paper Ming frame glass curtain wall calculation method of the solar radiation intensity,optical parameters calculation method and thermal performance calculation method.As,the last frame glass curtain wall thermal performance calculation model,shutter shade Ming frame glass curtain wall model is set up,using Ming frame glass curtain wall thermal performance calculation method,with the open of the full-scale model experiment method,the Ming frame glass curtain wall in hot summer and cold winter region suitability.According to the results of this study,as a traditional glass curtain wall system,the open-frame glass curtain wall can not avoid the common problem of the glass curtain wall system,that is,thermal engineering "cold and hot bridge" phenomenon.Natural ventilation airflow calculation model of the thermal model is ideal,but when calculating the thermal performance,in addition to the need to consider different toward the convective heat transfer coefficient of glass curtain wall,glass curtain wall of different time optical parameters(absorptivity,reflectivity and transmissivity),glass curtain wall of the solar radiation intensity,different time also must be glass curtain wall area,border thermal performance such as consideration in it.Ming frame in the design of glass curtain wall construction,the summer must consider toward design,shading,ventilation,rain water facilities for Ming frame glass curtain wall heat insulation performance,winter winter heat storage,gas cycle must be considered for Ming frame glass curtain wall insulation effect,and toward the selection is the foundation and shading is the key,the water spray ventilation is added..