An Analysis On Energy Consumption Of Large Spaces Air Condition System In Different Air Distribution

Tall space building have many airflow organization way, but comfort and energy consumption have differences. The most common of which are on the entire room air supply air conditioning form and side air supply air conditioning form stratification, But in practical engineering airflow organization way choice because of many factors. The making of the optimal plan, we need to know the energy consumption of the various solutions. This paper mainly studies the banquet hall, office hall, vestibular three functions of tall building in the space of different enclosure structure, different levels, different airflow organization way, different air supply height of the air conditioning system and layered energy consumption in different relative air supply air conditioning in height and to the entire room air conditioning of the relative energy saving rate.In this paper, first, air conditioning load calculation method of layered maintenance structure in the solving methods of surface temperature modified. Then use theory calculation method of giving to the next room air conditioning and side to send the next layer of air conditioning in various working conditions is calculated and analyzed, and the load that the two ways of the air conditioning load and the theory of hierarchical air conditioning load energy saving rate. This paper, by using Flunt typical room to the above the summer and winter mode of the simulation. Analyzed the entire room air conditioning and the application of hierarchical air conditioning. In order to verify the accuracy of the theoretical calculation and simulation, this paper is located at chongqing ZhuYuanLou hall of outpatient hall and office building, the hall of the summer and winter conditions of measured analysis. In a tall building in space, considering the cooling energy consumption and Japanese ark, it is concluded that conveying energy consumption to meet the design requirements of the system when the energy consumption. No outside the window banquet hall room air conditioning unit area of the consumption of power for 67-80 W/m~2, layered air conditioning unit area power consumption for 60-80 W/m~2, stratification of air conditioning for energy saving 13- 21%; When outside the window when the air conditioning room with larger area of unit area power consumption increased to 104-206 W/m~2, layered air conditioning unit area power consumption for 91-168 W/m~2, stratification of energy saving rate increase to air conditioning13-34%. No outside the window office hall room air conditioning unit area all power consumption for 24-36.1 W/m~2, layered air conditioning unit area power consumption for 18-28 W/m~2, stratification of air conditioning for energy saving 21-42%, when outside the window when the air conditioning room with larger area of unit area power consumption for 6-162 W/m~2, layered air conditioning unit area power consumption increased to 47-115 W/m~2, stratification of energy saving rate increase to air conditioning, 24-39%. No outside the window vestibular entire room air conditioning unit area power consumption for 14-26 W/m~2, layered air conditioning unit area power consumption for September 9-17 W/m~2, stratification of air conditioning for energy saving 28- 54%, when outside the window when the air conditioning room with larger area of unit area power consumption for 51-151 W/m~2, layered air conditioning unit area power consumption increased to 38-105 W/m~2, stratification of energy saving rate reduce air conditioning to 22-39%. The result of this paper tall space to the optimization design of the air conditioning system, the energy consumption forecast, air distribution and comfort prediction have some significance.