Air conditioning system energy efficiency retrofitting of a large-scale shopping mall in Guangzhou

Analyses the energy consumption characteristic of air conditioning system of the shopping mall building. Aiming at operating problems of the air conditioning system, proposes an air conditioning energy efficiency retrofitting scheme which applies multiple energy saving technologies. According to the field measured data, the retrofit scheme creates a good energy saving effect and economic benefit with monthly mean energy saving ratio up to 28.4% and 1 500 MWh power consumption saved per year.