Research On Energy Consumption Simulation Of Residential Buildings Based On Solar-reflective Cool Skin Technology

As global energy shortages and climate change challenges become increasingly severe,all walks of life are paying more and more attention to energy conservation and emission reduction.Residential buildings are the main source of energy consumption and carbon emissions,and energy-saving effort in this area has become one of the important energysaving measures in our country.The building envelope is the main factor affecting the energy consumption of residential buildings,the application of heat-reflective insulation coatings on the exterior walls and roofs can greatly reduce building energy consumption.Therefore,this thesis focuses on the impact of residential building envelope and its thermal performance on the energy consumption of residential buildings.This thesis uses Sketch Up software to build a residential building geometric model,and selects Open Studio software to set simulation parameters for the geometric model;through software and orthogonal simulation test methods,the influence of thermal performance parameters of residential buildings in five major climate regions on energy consumption is analyzed,including solar reflectance,thermal emissivity,heat transfer coefficient,and specific heat capacity,and the range method was used to compare the weight of the impact of each factor;Simultaneously,the influence of different cool skin technology application schemes on residential buildings is simulated so as to find the best application scheme for cool skin technology in five major climate regions.The main conclusions are as follows:(1)The solar reflectance is the main factor that has the greatest influence on the energy consumption of the building by the thermal performance of the residential building envelope.When cool wall technology is applied,solar reflectance is the most influential factor in the five climate regions;when cool roof technology is applied,heat transfer coefficient is the most influential factor in severe cold and cold regions.Solar reflectance is most influential factor in hot summer and cold winter region,hot summer and warm winter region and mild region;(2)Appropriate cool skin technologies can be applied to the five major climate regions in China to promote building energy conservation.Except that cool wall on one side of the south wall does not have energy-saving effects in severe cold region,all cool skin technology application schemes help reduce the energy consumption of residential buildings in the five major climate regions.In severe cold region,the best application scheme for cool skin technology is cool wall on two sides of the east and west walls and cool wall on three sides of the east,west and north walls;in cold region,the best application scheme for cool skin technology is cool wall on three sides of east,south,west walls and cool wall on three sides of east,west,north walls;in hot summer and cold winter region,the best application scheme for cool skin technology is cool wall on four sides and cool wall on three sides of east,south,west walls;in hot summer and warm winter region,the best application scheme for cool skin technology is cool wall on three walls of east,south,west walls and cool wall on four walls;in mild region,the best application scheme for cool skin technology is cool wall on three walls of east,south,west walls and cool wall on four walls;The results of this thesis are conducive to exploring the influence of the thermal performance of the building envelope on the energy-saving effect of cool skin technology,and provides a theoretical basis of the application of cool skin technology and other heat reflection technologies of the same principle in the field of residential buildings.