Indoor air quality and analysis of energy consumption in markets

Indoor air quality is closely related to the health of the occupants inside markets. The traditional air conditioning systems in the markets is faced with severe challenge since SARS breaks out. Indoor air quality in five large scale markets in Ji'nan China have been measured In markets the contaminants include such things as carbon dioxide,carbon monoxide,other gases and vapors radioactive materials microorganisms viruses allergens and suspended particulate matter. Energy consumption both primary return air conditioning systems and all outdoor air conditioning systems have been analyzed. The results indicate that energy consumption of all outdoor air conditioning systems is 4.71 times as much as that of primary return air conditioning systems We, based on a study of five markets building in China find that improving indoor air quality and energy conservation is contrary Indoor air quality is good but energy consumption is great if fresh air is totally used in air conditioning systems Energy consumption is small but indoor air quality is poor if cyclic air is used in air conditioning systems Air conditioning systems in the markets should be adopted the primary return air conditioning system with C wave band ultraviolet ray lamp at present, which can not only improve indoor air quality but also reduce energy consumption of air conditioning systems. Design method and characteristics of the new air conditioning system is introduced.