Abstract
The carbon emission at the embodied phase is a complex combination, extending the life cycle of the building, defining the process of the embodied phase scientifically and finding out the direct and indirect carbon emission sources in the embodied phase. Building materials have the characteristics of “low carbon surface, hidden high carbon.” Emission factor calculation method is used to establish carbon emission model for building materials. Considering the effect of design optimization on the carbon emissions of the whole life cycle of the building, a low carbon level system is set up to optimize the target of low carbon design. In the construction phase, the carbon emission sources, emission boundary, and calculation model are determined according to the subdivisional engineering division method. Through a series of process decomposition, the total amount of carbon emissions at the embodied phase can be obtained, and the carbon emission quota list at the embodied phase can be compiled to provide technical support for the carbon trading mechanism of the building.
Highlights
Population growth, environmental pollution, and energy shortage are the three major problems to be faced and in the future
Rough the analysis, a low carbon analysis system can be set up to optimize the various factors according to different regions and types of buildings. rough the selection of different factors in all levels, the carbon emission in the design can be kept in a controllable range, so that the system design is more technical, reasonable, and scientific
Rough optimization, the carbon emission in the design can be kept in a controllable range, which makes the system design more technical, reasonable, and scientific and achieves the optimal energy saving and emission reduction effect
Summary
Population growth, environmental pollution, and energy shortage are the three major problems to be faced and in the future. In the US, the construction industry is the third largest source of greenhouse gas (GHG) emissions [2]. In the European Union, buildings are the largest consumer of energy accounting for up to 40% of the total energy consumption and approximately 36% of the greenhouse gas emissions [3, 4]. Due to the rapid growth of social and economic development in China, the carbon emissions of building are greater than other countries, which have attracted the attention of the government. According to the research results of the Building Energy Saving Research Center of Tsinghua University (BESRCTU), in 2012, the total energy consumption of building amounted to 6.90 hundred million tons of standard coal, accounting for 19.1% of the total energy consumption in China [5]. The international carbon emission trading system, except the Tokyo Metropolitan Trading System in Japan, does not include building emission reduction into the scope of mandatory trading control. is is mainly because of the transaction subject, emission boundary, emission reduction cost, and other factors, especially the difficulties and differences in building carbon emission data accounting, baseline determination, and so on, which are the primary problems to be solved in building carbon trading
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