The construction of relevant standards for building carbon emission assessment in China has just started,and the quantitative analysis method and evaluation system are still imperfect,which hinders the development of ...The construction of relevant standards for building carbon emission assessment in China has just started,and the quantitative analysis method and evaluation system are still imperfect,which hinders the development of low-carbon building design.Therefore,the use of intelligent energy management system is very necessary.The purpose of this paper is to explore the design optimization of low-carbon buildings based on intelligent energy management systems.Based on the proposed quantitative method of building carbon emission,this paper establishes the quota theoretical system of building carbon emission analysis,and develops the quota based carbon emission calculation software.Smart energy management system is a low-carbon energy-saving system based on the reference of large-scale building energy-saving system and combined with energy consumption.It provides a fast and effective calculation tool for the quantitative evaluation of carbon emission of construction projects,so as to realize the carbon emission control and optimization in the early stage of architectural design and construction.On this basis,the evaluation,analysis and calculation method of building structure based on carbon reduction target is proposed,combined with the carbon emission quota management standard proposed in this paper.Taking small high-rise residential buildings as an example,this paper compares and analyzes different building structural systems from the perspectives of structural performance,economy and carbon emission level.It provides a reference for the design and evaluation of low-carbon building structures.The smart energy management system collects user energy use parameters.It uses time period and time sequence to obtain a large amount of data for analysis and integration,which provides users with intuitive energy consumption data.Compared with the traditional architectural design method,the industrialized construction method can save 589.22 megajoules(MJ)per square meter.Based on 29270 megajoules(MJ)per ton of standard coal,the construction area of the case is about 8000 m2,and the energy saving of residential buildings is 161.04 tons of standard coal.This research is of great significance in reducing the carbon emission intensity of buildings.展开更多
Green development is an important concept based on China's needs and the international situation. Green development will greatly help China choose its path for economic growth. In the newly ratified Paris Agreemen...Green development is an important concept based on China's needs and the international situation. Green development will greatly help China choose its path for economic growth. In the newly ratified Paris Agreement, the carbon emission reduction target willingly and determinedly proposed by China is very challenging. It will increase China's cost per unit of carbon dioxide emissions, slow China's economy growth, and set the upper limit for China's carbon emissions in the future. Facing these challenges, China needs to properly conduct carbon allocations under restrictions and promote green and low carbon development of the Chinese economy primarily by reinforcing structural adjustments and optimizing energy structures, upgrading industrial structures, being actively involved in international cooperation on carbon emission reduction and using other positive strategies.展开更多
党的二十大报告提出,积极稳妥推进碳达峰碳中和。能源结构调整是实现碳中和目标的重要途径,从碳排放产生机制与经济增长的共生关系出发,将经济高质量发展纳入碳中和目标考虑范畴。基于长三角地区3省1市2017年投入产出表,构建区域宏、微...党的二十大报告提出,积极稳妥推进碳达峰碳中和。能源结构调整是实现碳中和目标的重要途径,从碳排放产生机制与经济增长的共生关系出发,将经济高质量发展纳入碳中和目标考虑范畴。基于长三角地区3省1市2017年投入产出表,构建区域宏、微观SAM表及能源结构调整模拟分析CGE(computable general equilibrium)模型,建立长三角地区宏观经济闭合系统,研究能源结构调整对长三角地区的经济影响及其差异性。研究发现:1)长三角各区域随着能源结构转型不断推进,其经济影响存在明显差异性,以江苏省为例,当清洁能源替代5%、10%、15%、20%时,江苏省能源结构调整的多数经济指标的经济影响以替代5%时的损失最多,替代10%时的损失小于替代5%、15%时的损失;2)长三角各区域经济发展对传统化石能源的依赖程度存在较大差异,安徽省、上海市经济发展受到能源结构调整的影响较低,江苏省次之,浙江省受到能源结构调整的影响最大;3)随着能源结构调整不断推进,长三角部分区域的经济影响存在阶段性浮动,以江苏省为例,当清洁能源替代10%时,多数经济指标,如农业、制造业、服务业部门的产出以及GDP、政府收入等的经济影响均小于清洁能源替代5%、15%时产生的影响。能源结构调整对长三角地区乃至全国各地实现碳中和目标至关重要,亟须关注。展开更多
为实现碳中和目标,应大力发展清洁能源,需要建设综合能源系统(integrated energy system,IES)并对其进行优化。首先提出了一种IES低碳经济运行策略。该策略关注碳交易市场,并引入阶梯式碳交易机制,以促使IES更有效地控制碳排放;其次提...为实现碳中和目标,应大力发展清洁能源,需要建设综合能源系统(integrated energy system,IES)并对其进行优化。首先提出了一种IES低碳经济运行策略。该策略关注碳交易市场,并引入阶梯式碳交易机制,以促使IES更有效地控制碳排放;其次提出了一种基于电解槽、甲烷反应器和氢燃料电池的电转气(power-to-gas,P2G)过程。这种新方法可有效提高氢能利用率,降低运行成本;最后,还提出了供需灵活侧双响应机制。在供应侧,通过热电比可调的热电联产来提高能源利用率。在需求侧,提出电、热、气负荷均具备时间维度上需求响应的同时,还具备可替代性。通过这一机制,能够进一步提升IES环保性和可行性。展开更多
基金supported by“Key Technology Research on Operational Performance Improvement of the Green Building”(2020YFS0060)Key Project of Science and Technology Department of Sichuan Province+2 种基金supported by“Creative VR Teaching and Learning Research Based on‘PBL+’and Multidimensional Collaboration”(JG2021-721)“Reform in the Mode and Practice of Architecture Education with the Characteristics of Geology”(JG2021-672)Education Quality and Teaching Reform Project of Higher Education in Sichuan Province in 2021–2023.
文摘The construction of relevant standards for building carbon emission assessment in China has just started,and the quantitative analysis method and evaluation system are still imperfect,which hinders the development of low-carbon building design.Therefore,the use of intelligent energy management system is very necessary.The purpose of this paper is to explore the design optimization of low-carbon buildings based on intelligent energy management systems.Based on the proposed quantitative method of building carbon emission,this paper establishes the quota theoretical system of building carbon emission analysis,and develops the quota based carbon emission calculation software.Smart energy management system is a low-carbon energy-saving system based on the reference of large-scale building energy-saving system and combined with energy consumption.It provides a fast and effective calculation tool for the quantitative evaluation of carbon emission of construction projects,so as to realize the carbon emission control and optimization in the early stage of architectural design and construction.On this basis,the evaluation,analysis and calculation method of building structure based on carbon reduction target is proposed,combined with the carbon emission quota management standard proposed in this paper.Taking small high-rise residential buildings as an example,this paper compares and analyzes different building structural systems from the perspectives of structural performance,economy and carbon emission level.It provides a reference for the design and evaluation of low-carbon building structures.The smart energy management system collects user energy use parameters.It uses time period and time sequence to obtain a large amount of data for analysis and integration,which provides users with intuitive energy consumption data.Compared with the traditional architectural design method,the industrialized construction method can save 589.22 megajoules(MJ)per square meter.Based on 29270 megajoules(MJ)per ton of standard coal,the construction area of the case is about 8000 m2,and the energy saving of residential buildings is 161.04 tons of standard coal.This research is of great significance in reducing the carbon emission intensity of buildings.
基金the result of current research"Political Economic Studies of the Reshaping of the International Division of Labour System and China’s Industrial Restructuring Strategy"(project number:14BJL048)an ordinary project supported by China’s National Social Sciences Fund+1 种基金"Studies of the Paris Agreement and Cooperation between China,Japan and South Korea on Carbon Emission Reduction"(project number:AS1620)a project of the Asia Research Centre of Nankai University
文摘Green development is an important concept based on China's needs and the international situation. Green development will greatly help China choose its path for economic growth. In the newly ratified Paris Agreement, the carbon emission reduction target willingly and determinedly proposed by China is very challenging. It will increase China's cost per unit of carbon dioxide emissions, slow China's economy growth, and set the upper limit for China's carbon emissions in the future. Facing these challenges, China needs to properly conduct carbon allocations under restrictions and promote green and low carbon development of the Chinese economy primarily by reinforcing structural adjustments and optimizing energy structures, upgrading industrial structures, being actively involved in international cooperation on carbon emission reduction and using other positive strategies.
文摘党的二十大报告提出,积极稳妥推进碳达峰碳中和。能源结构调整是实现碳中和目标的重要途径,从碳排放产生机制与经济增长的共生关系出发,将经济高质量发展纳入碳中和目标考虑范畴。基于长三角地区3省1市2017年投入产出表,构建区域宏、微观SAM表及能源结构调整模拟分析CGE(computable general equilibrium)模型,建立长三角地区宏观经济闭合系统,研究能源结构调整对长三角地区的经济影响及其差异性。研究发现:1)长三角各区域随着能源结构转型不断推进,其经济影响存在明显差异性,以江苏省为例,当清洁能源替代5%、10%、15%、20%时,江苏省能源结构调整的多数经济指标的经济影响以替代5%时的损失最多,替代10%时的损失小于替代5%、15%时的损失;2)长三角各区域经济发展对传统化石能源的依赖程度存在较大差异,安徽省、上海市经济发展受到能源结构调整的影响较低,江苏省次之,浙江省受到能源结构调整的影响最大;3)随着能源结构调整不断推进,长三角部分区域的经济影响存在阶段性浮动,以江苏省为例,当清洁能源替代10%时,多数经济指标,如农业、制造业、服务业部门的产出以及GDP、政府收入等的经济影响均小于清洁能源替代5%、15%时产生的影响。能源结构调整对长三角地区乃至全国各地实现碳中和目标至关重要,亟须关注。
文摘为实现碳中和目标,应大力发展清洁能源,需要建设综合能源系统(integrated energy system,IES)并对其进行优化。首先提出了一种IES低碳经济运行策略。该策略关注碳交易市场,并引入阶梯式碳交易机制,以促使IES更有效地控制碳排放;其次提出了一种基于电解槽、甲烷反应器和氢燃料电池的电转气(power-to-gas,P2G)过程。这种新方法可有效提高氢能利用率,降低运行成本;最后,还提出了供需灵活侧双响应机制。在供应侧,通过热电比可调的热电联产来提高能源利用率。在需求侧,提出电、热、气负荷均具备时间维度上需求响应的同时,还具备可替代性。通过这一机制,能够进一步提升IES环保性和可行性。
