新型露点间接蒸发空调机组的研发与适应性研究

Performance Test and Adaptability Analysis of a New Dew Point Indirect Evaporative Air Conditioning

设计研发了1种新型蒸发冷却空调机组,对其性能参数变化规律和气候适应性进行了研究。基于蒸发冷却理论,研发了1种将直接蒸发与间接蒸发相结合、多级蒸发冷却的新型蒸发冷却空调机组,通过搭建实验测试平台,对新型蒸发冷却空调机组进风干湿球温度、出风温度进行了测试和分析,得到了出风干湿球温度随室外气候干湿球温度变化而变化的基本规律;然后,根据机组性能参数变化规律以及北京、西安、广州和福州4个城市的气象数据,对其适应性进行了分析。结果表明,在全年制冷期内,典型地区应用新型蒸发冷却空调机组出风温度低于26℃的时间均在94%以上,这表明新型蒸发冷却空调机组作为承担显热负荷的技术手段,可适用于我国绝大部分城市;特别对于湿度要求不高的场合,可全年采用该类空调机组实现制冷,节能潜力显著。

The performance of a new dew point indirect evaporative air conditioning unit was tested,and its application in different climate conditions was analyzed.By established a test platform,the dry bulb and wet bulb temperature of inlet air as well as temperature of outlet air in the new dew point indirect evaporative air conditioning unit were tested and analyzed,and the basic laws of outlet temperature with outdoor climate dry and wet bulb temperature changes air were obtained.Then,according to the change of working performance parameters and meteorological data of four cities,namely,Beijing,Xi’an,Guangzhou and Fuzhou,the adaptability was analyzed.The results show that during the cooling period of the whole year,application rate of the novel dew point indirect evaporative air conditioning unit in the typical areas with the air temperature lower than 26℃is above 94%,suggesting that the novel dew point indirect evaporative air conditioning unit,as a technical means bearing sensible heat load,can be used in most of the cities in China.For occasions having low demands for humidity,that type of air conditioning units can especially be adopted throughout the year to realize refrigeration while embracing significant energy saving potential.