Optimization Of Low-carbon City Blocks Based On Microclimate Effect

The situation of climate warming has been widely concerned by the world.Climate warming has brought many serious problems to nature.Among them,carbon dioxide gas is the most important factor leading to climate warming.Urbanized areas are the main source of carbon dioxide emissions,and how to develop and construct low-carbon urban block spaces is particularly important.The way to achieve a low-carbon society and build a low-carbon city is not only limited to the treatment of the source of carbon dioxide emissions,but also to effectively channel and absorb the existing carbon dioxide in the near-surface layer of the atmosphere.Is the local spatial distribution of carbon dioxide concentration even? The main factors affecting the urban thermal environment and urban meteorological effects.This article will conduct an optimization study on the shape of urban blocks to achieve the purpose of effectively evacuating the carbon dioxide gas accumulated in the near-surface layer and reducing the carbon dioxide concentration.This article makes an in-depth study on the spatial distribution of carbon dioxide concentration in the near-surface layer from the perspective of urban microclimate.In the paper,firstly,the research on the distribution of carbon sources and carbon sinks in urban blocks was carried out,the absorption and emission process of carbon sources and carbon sinks in the blocks was clarified,and the intensity of carbon sources and carbon sinks were quantified law.Build a monitoring instrument and equipment platform to monitor the carbon dioxide concentration of typical blocks.Through the statistics of the monitoring data,understand the time and space distribution rules of carbon dioxide concentration in the blocks.At the same time,monitor the relevant meteorological elements and study the correlation between carbon dioxide and each meteorological element.The question is to determine whether changes in meteorological elements have an effect on changes in carbon dioxide concentration.It provides a basis for simulating and studying the influence of the spatial layout of urban blocks and the spatial distribution of carbon dioxide concentration,and controlling the single factor variables.Combined with the above two research rules,the low-carbon-oriented street space shape optimization strategy was studied.Based on the study of the spatial distribution of carbon dioxide concentration in the block under the simulation of carbon emission and carbon absorption scenarios,in the case of a single variable and other related elements being the same or similar,a research model is constructed to optimize the spatial shape of the block and effectively channel and absorb carbon dioxide gas to achieve.The purpose of optimizing the thermal environment of the block.Based on the numerical simulation,an optimization strategy for the urban block spaceform with the goal of improving the thermal environment of the block is proposed,and the change of the carbon dioxide concentration and temperature in the urban block space is used as the basis for judging the effect of improving the thermal environment of the block.In this paper,the optimal design of Taiyuan Street in Shenyang City is studied.From the perspective of architecture,the overall optimization of the spatial form of Taiyuan Street is carried out through the adjustment of various architectural indicators.The construction of Taiyuan Street is conducive to the carbon dioxide drainage and absorption.To improve the thermal environment and thermal comfort of Taiyuan District.Construction is based on the premise of saving economy,and the optimization design strategy of urban block space that maximizes ecological benefits.Create a comfortable and pleasant commercial block space environment to achieve the purpose of improving the thermal environment and thermal comfort of the Taiyuan Street block space in Shenyang City.