Measurement and analysis of carbon emissions from prefabricated buildings under the transition of new and old kinetic energy

Abstract

The "fourteenth fiveyear plan"period is the key period for China to cross the high income threshold and tackle the key problems of reform, and it is also the key period for China to continue to transform the old and new kinetic energy. In this period, the pace of new urbanization in China is gradually accelerating, and it is becoming a powerful engine of China's economic growth and social development. The new urbanization strategy will leverage a new round of development of the construction industry and become a new growth point of the construction industry. The traditional construction industry is at the cost of consuming a lot of natural resources and causing heavy environmental burden. As a technological innovation with innovative significance in changing the mode of production, prefabricated building is an important way of energy conservation and emission reduction, and its development prospect is very broad. However, due to the relatively deep practice of prefabricated building based on the market environment has just started, the targeted research on energy conservation and emission reduction is not sufficient or even blank. Taking a project in Shenyang City of Liaoning Province as an example, this paper establishes the calculation formula of carbon emission of concrete prefabricated and cast-in-place residential buildings by using the emission factor method, calculates and compares the differences of carbon emission of the two kinds of buildings in the production stage, transportation stage and construction stage, and puts forward the corresponding carbon reduction measures of prefabricated buildings in each stage, so as to provide a powerful reference for the healthy and rapid development of other low-carbon buildings in China theoretical basis and practical guidance of the project.