华南地区住宅建筑毛细管辐射空调系统运行策略研究

Research on the Operation Strategy of Capillary Radiation Air Conditioning System in Residential Buildings in South China

摘要: 为探究毛细管辐射空调系统在华南地区住宅建筑中的运行效果及能效情况，文章开展样板间空调系统供冷特性实测研究，建立压缩机能耗模型并采用EnergyPlus对建筑进行动态冷负荷分析，最后计算出系统在不同运行模式下的耗电量。结果表明：间歇运行模式下，供水流量1.31 m³/h及供水温度16℃时，开机2小时后室内温度达到室内设计温度，供水温度每升高2℃所需时间增加约1小时，关机1小时后室内温度升高1℃，降低供水流量对于室内温度的影响极为显著；连续运行模式下，受室外温度及太阳辐射的影响，7:00~18:00期间室内温度在25.5℃~27℃之间波动，当室外温度不超过30℃且无太阳直射时，供水流量0.98 m³/h及供水温度20℃即可满足室内舒适性要求。5~10月份空调采用间歇运行模式较采用连续运行模式节能32.06%。

Abstract: In order to explore the operation effect and energy efficiency of capillary radiation air conditioning systems in residential buildings in South China, a field study on the cooling characteristics of the model room air-conditioning system was carried out, a compressor energy consumption model was established, and EnergyPlus was used to conduct a dynamic cooling load analysis of the building and the power consumption of the system under different operating modes was calculated. The results show that in intermittent operation mode when the water supply flow rate is 1.31 m³/h and the water supply temperature is 16˚C, the indoor temperature reaches the indoor design temperature 2 hours after the power is turned on. The time required for each 2˚C increase in the water supply temperature increases by about 1 hour, and one hour after shutdown, the indoor temperature rises by 1˚C. Reducing the water supply flow has a significant impact on the indoor temperature. In continuous operation mode, affected by outdoor temperature and solar radiation, the indoor temperature ranges from 25.5˚C to 27˚C from 7:00 to 18:00. When the outdoor temperature does not exceed 30˚C, and there is no direct sunlight, a water supply flow rate of 0.98 m³/h and a water supply temperature of 20˚C can meet the indoor comfort requirements. From May to October, the intermittent operation mode of air conditioners saves 32.06% more energy than the continuous operation mode.