Energy Consumption and Energy Saving Potential Analysis for Residential Buildings in Changsha,China

摘要

The annual investigations on annual energy consumption and the related factors of energy usage have been taken from Nov.2005 to Oct.2006.The annual energy cosnumption characteristics are anlyzed in this paper.Partial correlations analysis is used to find out the influence factors of residential energy consumption.It is found that the mounthly electricity and gas consumption bear the typical characteristics of seasonal variation.The city gas consumption is largest in winter and smallest in summer,while the electriciy consumption in summer and winter is larger than that in spring and autumn.The average value of total annual energy consumption is 20.39GJ/household.Energy use of space cooling is larger than that of space heating.The partial correlations analysis shows that there exists significant correlation between annual income,the space heating modes and residential energy consumption respectively.Energy consumption much depends on the life-style in each residence,and the possibility of energy-saving can be seen by improving energy saving awareness of residents.