Green Transformation Of Thermal Environment Of Block Dwellings In Jizhong Area Based On Dynamic Simulation

Due to the high energy consumption of buildings,the research focus of this article is on the green transformation of residential buildings in central Hebei in cold regions(Zone B).Quantitative results of energy-saving measures are obtained through research and optimization of typical residential buildings.The specific research content is to analyze the thermal environment of typical residential buildings in the central Hebei region,provide accurate and objective descriptions of the performance of typical residential buildings,propose improvement measures,and ultimately solve the energy-saving effects of corresponding measures.The simulated block residential buildings are divided into three typical models: large depth one story residential buildings,large depth two story residential buildings,and small depth one story residential buildings.During the survey of residential buildings,the TES1362 thermometer hygrometer was used to measure and record the six-day data of the residential buildings.It can be seen that in the central Hebei region,the indoor temperature is sultry in summer,the outdoor temperature is appropriate in the morning and afternoon,and the daytime temperature is high;In winter,the indoor temperature is lower,while the outdoor temperature is higher at noon,and the rest of the time is colder.This article simulates the thermal environment based on the current conditions of residential buildings on the Airpak platform.By establishing a physical model of a room in a simulated residential building and conducting the simulation,it is concluded that due to the thermal performance of the existing enclosure structure,it is difficult to achieve the same indoor thermal environment as urban residential buildings.After the proposed green transformation plan,a series of technical measures were further simulated,such as calculating the impact of insulation layer thicknesses of 40 mm,50mm,60 mm,70mm,etc.on building energy efficiency.The impact of increasing the air interlayer of double-layer glass on building energy consumption.Further simulation is conducted on the relationship between the layout of photovoltaic panels and power generation.Based on different purposes,predict and provide feedback on the energy consumption,thermal environment,and other aspects of the renovated building,and compare the renovated building with the buildings required by the specifications.The conclusion drawn after simulation is that under the conditions of good energy-saving benefits and economic benefits,the optimal thickness of EPS insulation layer for typical single-story residential buildings is determined to be 40 mm,the optimal spacing between double-layer glass air layers is 6mm,and the optimal thickness of roof insulation layer is 100 mm.The optimal thickness of EPS insulation layer for typical large depth two-story residential buildings is 40 mm,the optimal spacing between double layer glass air layers is 6mm,and the optimal thickness of roof insulation layer is 80 mm.This thesis has reference significance for the selection of insulation layer thickness,double layer glass air interlayer spacing,and photovoltaic panel layout in the process of green transformation of residential buildings.