Research On The Cavity Space Design Of Lingnan Traditional Dwellings Based On Thermal Comfort

In the context of the global warming era caused by over-exploitation of resources,countries have introduced sustainable energy-saving policies.The relatively unique hot and humid climate in Lingnan makes people use air-conditioning and other active climate-adjusting methods in their lives on a large scale to pursue a comfortable living environment,which is undoubtedly not conducive to energy saving.At the same time,it is easy to cause it in a constant environment controlled by air-conditioning and other machinery for a long time.Headaches,coughs,sore limbs and other "air-conditioning disease" symptoms improve the environment but are not conducive to the comfort of the human body.Therefore,it is imperative to reduce active mechanical adjustment and strengthen passive energy saving.In traditional Lingnan buildings,special spatial forms such as patios,cold lanes,courtyards,and corridors are often used to achieve the purpose of improving the thermal comfort of the indoor living environment.The cavity concept has been introduced into the field of architecture in recent years,and it is common in large-space public buildings or high-rise buildings.However,the environmental regulation principle of the cavity is not limited to the above-mentioned buildings.Therefore,this article introduces the concept of cavity space into traditional buildings.The influence of cavity space in Lingnan traditional buildings on thermal comfort,exploring the green wisdom in Lingnan traditional buildings.This article first sorts out the literature and defines the cavity space.At the same time,it summarizes the thermal environment adjustment principle of the cavity space,and analyzes the cavity space from the perspectives of space form,space location,function type,and space combination method.Detailed classification and sorting,summarize the common layout techniques of cavity space.At the same time,the influencing factors of thermal comfort and thermal comfort evaluation index are researched and analyzed,and the evaluation index PET suitable for this article is selected.Secondly,select typical cases of traditional residences in Lingnan to carry out the actual measurement analysis of the thermal comfort of the cavity space and the computer software simulation verification analysis.According to the actual measurement of the air temperature,relative humidity,black bulb temperature and air velocity of the selected case,Rayman Pro3.1software is used to calculate the measured data to obtain the thermal comfort evaluation index value.Use Grasshopper and its plug-ins Ladybug,Honeybee and Butterfly to simulate the thermal environment and wind environment of the case,and compare the measured data with the simulated values to verify that the cavity space has an optimized effect on thermal comfort.Subsequently,it analyzes the common cavity space morphology in traditional dwellings in Ling,and simplifies the typed diagrams,extracts typical basic prototypes,combs the common combination layout patterns of cavity space,and analyzes the shape and position factor pairs through computer simulation experiments.The influence of the single cavity space thermal comfort and the number and combination factor on the composite cavity space thermal comfort.Finally,combined with specific cases,from the perspective of design practice,the application of the green wisdom of cavity space in Lingnan traditional buildings in modern architecture is analyzed,in order to provide a certain reference for future cavity space design and research.