Research On Digital Optimization Stratagy Of Composite Building Skin In Hot And Humid Region Based On Energy Saving Performance In Transition Months

Composite building skin is widely used in hot and humid areas due to its comprehensive ability to solve various problems such as lighting,shading and ventilation.As a medium connecting indoors and outdoors,the physical properties of the composite skin have a great impact on the energy consumption of the building.The uncomfortable indoor physical environment caused by the poor performance of the composite skin will increase human dependence on heating,air conditioning and lighting systems,resulting in a great waste of building energy.Previous studies have only considered single performance of the composite skin,such as shading or ventilation performance,there is no comprehensive evaluation method for the composite skin,and these energy-saving measures have not been converted into specific energy-saving indicators.Therefore,based on the energy-saving performance of the composite skin,this paper quantitatively studies the influence of the composite skin component form on the indoor thermal environment and comfort time through the measurement analysis and software simulation.Combined with the simulation analysis results,the energy efficiency evaluation and prediction method of the composite skin is proposed.The method provides new optimization ideas for the design of composite skin components in this region.Based on this goal,the content of this research is mainly divided into the following aspects: Firstly,the buildings with the composite building skin in the hot and humid area were investigated and sampled,and the basic forms of the composite skin of the building in the hot and humid area were summarized.(Chapter Two)Secondly,the representative composite building skins are selected for actual measurement analysis,and the performance simulation software is simulated and verified according to the measured results to verify the scientificity and reliability of the simulation tools.(Chapter Three)Thirdly,a comparative study of the performance of single-layered skin construction and composite skin construction is carried out.Simulation software is used to simulate the indoor comfort time and physical environment indicators during the transition season without conditioning or heading sytem.The simulation result found that the physical environment of the building with composite skin is more comfortable and the comfort time in the transition season is longer.(Chapter Four)Finally,the main factores influencing the comfort tiem of the movable composite skin are studied.Through the correlation analysis of large volumes of data,it is found that there is a linear regression relationship between the visor depth,the rotation angle and the comfort time.On this basis,the dimensions of building composite skin members with better energy-saving performance are summarized,which provides reference for building skin design in hot and humid areas.(chapter Five)The paper innovatively uses the parametric performance simulation platform to build an energysaving performance evaluation and design method for composite skin in hot and humid regions.The method enhances the operability of the energy-saving optimization design in the early stage of design,and provides an objective quantitative evaluation basis for the energy saving performance comparison of the composite skin design scheme in the hot and humid area,which has practical significance for achieving the sustainable development goal of economic energy conservation.