Survey and analysis on the energy consumption of air conditioning for urban residential buildings in Fuzhou in Summer

In order to understand the status and characteristics of air conditioning energy consumption in urban residential buildings in hot summer and warm winter zones, with the survey method to split the data of household electricity meters, the air conditioning energy consumptions of two residential buildings with split air conditioner are surveyed in an urban residential district in Fuzhou in the summer of 2012. The survey results show that the average air conditioner energy consumption for one household is 605 kWh and the average air conditioner energy consumption index for floor areas is 6.3 kWh/m². The average air conditioning energy consumption for one air conditioner is 239 kWh and the average equivalent full load operation time coefficient of the air conditioner is about 8%. The energy consumption level of split air conditioner in urban residential buildings is still quite lower in this climate region. The air conditioning energy consumptions among different households are quite different. It indicates that there are great differences among air conditioning demand of households. Most of air conditioners operate intermittently in short period. The scheme of decentralized air conditioning can give full play to huge potential of air conditioning energy-saving, so the average air conditioning energy consumption of this scheme is far lawer than that of the central air conditioning scheme.