Energy Conservation of Air Conditioning Systems in Large Public Buildings

Analyzing the actuality of the large-scale public buildings' energy consumption, we know that most of them run not only in low efficiency, but also in high energy consumption. According to the characteristics of the building, we should proceed with the heating characteristics of the exterior -protected construction, the set value of the temperature of the air-conditioning, the lectotype of the Central air-conditioning system, the regulation and the modification of the transmission and distribution system, the use of the new energy and the daily management or the method of adjustment and control, and so on , so we can make the air-conditioning system run efficiently. Analyzing and comparing the large-scale public buildings' energy consumption with each other, some pointed improvement measures are proposed further. According to the study and analysis, even though large-scale public buildings consume a great of energy, there exists a huge potential for energy conservation. Keyword: the large-scale public building; air-conditioning system; energy conservation; the analysis of the energy; optimizing run 1. THE STATUS QUO OF THE ENERGY CONSUMPTION IN THE LARGE-SCALE PUBLIC BUILDING The energy consumption of the large-scale public building takes a large proportion of the energy consumption of the construction, so it should be the most important part in the energy conservation. According to the stat of Beijing recently, we know that every per construction area of all kinds of the large-scale public buildings have consumed 100-350kwh electric energy in a year, which is about as 10-15 times as that of the residences in downtown areas. There are about 20 million square meters large-scale public buildings in total, which is only 5 percents of the whole civil architectures in Beijing , but the total electric consumption is as much as 3.3 billion kWh ,and it is nearly as much as that being used for life by the citizens in halt of the city. However, the energy consumption of the air conditioners in the large-scale public buildings is 30%-60% of the total energy consumption. So the study of the large-scale public buildings' air-conditioning has an important meaning to us.