Study on the potential for energy and carbon reduction in the renovation of residential buildings for heating in old districts
In order to reduce carbon emission levels in the construction industry and reduce energy waste,Chifeng City has been renewing old neighborhoods in terms of envelope structure and heating pipes.This paper collates relevant research on energy saving and carbon reduction in old districts at home and abroad,summarises the carbon emission factors of various materials used in the renovation process,calculates the carbon emissions generated during the renewal and renovation of residential buildings in typical old districts in Chifeng and the carbon reduction after the completion of the renovation to analyse the carbon reduction effect brought about by the renovation,and compares the energy saving effect before and after the renovation to analyse the the results of energy saving and carbon reduction.In the case of the Epidemic Prevention Station building,for example,the cumulative annual heat load was reduced from 8.41 MW before the retrofit to 3.35 MW after the retrofit,an energy saving rate of 60.17%.1336.60t of carbon dioxide emissions can be reduced over the 30-year lifecycle of the neighborhood after the retrofit.