Research On The Design Strategy Of Solar Thermal Environment And Energy-saving Design For The Daylighting Atrium Of Commercial Buildings In Suzhou Area

As the transformation space of the building,the atrium mainly undertakes the functions of display,tour and rest,and it is also an important space that affects the internal physical environment of the building.With the continuous development of commercial buildings,atriums have also been widely used.Commercial atriums with daylight ceilings not only introduce natural light,but also bring a lot of heat exchange.In the past,most of the physical environment of the atrium space stayed in a single factor,and there was a lack of comprehensive physical factors research.The thesis takes the lighting atrium of commercial buildings in Suzhou area as the research object,summarizes the characteristics of its light and heat environment through literature research and field investigation methods,establishes an original model suitable for the atrium of this area,conducts software simulation and comparative analysis,and draws corresponding energy-saving design strategies.This article firstly reads the literature to understand the development of the atrium,analyzes and summarizes the research status of the atrium’s photothermal environment,and at the same time combs the evaluation indicators of the photothermal environment.Secondly,compare and verify the actual measurement results and simulation results of the investigated objects,discuss the reliability of the simulation software,and establish an original standard model based on this to conduct photothermal environment and energy consumption simulation analysis for different plane shapes,spatial scales and glass materials.It can be seen from the simulation that different plane forms have different effects on the energy consumption of the building.The circular plane consumes less energy.In terms of spatial scale,the height-to-width ratio of the atrium should be controlled at 1.The inside of the atrium consumes less energy.In terms of material selection,a material with a smaller heat transfer coefficient should be selected.In terms of passive components,the heat gain of the atrium mainly comes from solar radiation,and the main heat loss of the atrium comes from the enclosure structure.At the same time,the internal illuminance value of the atrium can basically meet the standard value.From the comprehensive light and heat environment,the commercial building lighting atrium in Suzhou mainly considers the energy consumption caused by the thermal environment of the atrium,and then considers the characteristics of its light environment.This paper investigates and simulates the light and heat environment of the commercial building lighting atrium in Suzhou area,grasps its basic characteristics,and summarizes the three design aspects of the commercial building lighting atrium,and proposes corresponding energy saving for different influencing factors.The design strategy provides certain data support for architects in the energy-saving design of commercial building atriums in Suzhou and other similar areas.Finally,the limitations of this article’s research and future research directions are proposed.