| The percentage that energy consumption of the buildings accounts for all the energy consumption is higher and higher. Energy consumption of the commercial buildings is the most part of energy consumption of buildings, and energy consumption in central air conditioning is the important part of energy consumption in commercial buildings, it is important problem that the air-conditioning system is low energy efficiency. But the importance of the study on the energy consumption of the air-conditioning of commercial buildings is not yet regarded. In a word it is necessary very much to research the level of energy consumption of the air-conditioning system in commercial buildings and energy efficiency technology in central air conditioning of commercial buildings.Based on the status that is got through investigating and testing energy consumption in commercial buildings of Chongqing, analyzes and assesses the status of the energy consumption of the air-conditioning system in commercial buildings Points that the level of the building and air-conditioning system energy consumption of commercial buildings in Chongqing and that there are many questions on the building energy use and managements of the commercial in Chongqing.This paper analyzes the results of testing about the electricity consumption of most equipment, the temperature and flux of the output and input chilled water of chillers, the stability of the chillers, the air quality of the air conditioning rooms of some emporium and the outer climate condition. Discusses the questions of managements on the central air conditioning of the emporium and how the temperature of output and the temperature difference of input and output chilled water affect the COP of the chillers.This paper analyzes the use status of the energy efficiency technology in Chongqing , discusses the applicability and economics of energy efficiency technology and points out the energy efficiency technology which adapt to Chongqing. Based on testing central air conditioning system of some groggery, analyzing energy efficiency of converters fixed in water pump. Clarifies the great potential of energy efficiency of converters, and puts forward the existing problems of the converter application. analyzes importantly that how the air conditioning water system that was fixed with converter technology affects the chiller. |
