Energy Saving Transformation Strategies of Existing Residential Buildings in Changsha Area Based on Energy Consumption Survey before and after Ten Years
There are some problems in the existing residential energy saving reconstruction in Changsha area,such as residents'weak intention and the effect of energy saving reconstruction is not obvious.This study investigated the envelope structure and household appliances of nearly 35 residential buildings around Hunan University in 2008,2009,2019,and 2020,respectively,as well as the terminal electricity consumption of more than 400 residential households.The K-means clustering method is used to cluster total electricity consumption,heating,cooling and domestic electricity consumption respectively.The study calculates parameters such as boundary value and average value as well.Then,the change rule of residential electricity consumption before and after ten years is analyzed.It is proposed that improving indoor thermal environment and reducing cooling energy consumption are important goals of existing residential energy saving reconstruction in this area.This paper makes macro scenario prediction of existing residential electricity consumption,demonstrates the necessity of energy saving reconstruction of existing residential building envelope,analyzes the reasons for weak intention of energy saving reconstruction,and puts forward appropriate relevant strategies based on the current reconstruction strategies.It has certain reference value for energy saving reconstruction of existing residential buildings in the same climate zone.
energy consumption surveyChangsha areaexisting residential buildingsK-means clustering analysisscenario prediction
维普
万方数据
