蒸发冷却+干式风机盘管的空调系统探讨

A New Air-conditioning System Combined by Evaporative Cooling and Dry Fan-coil Unit

本文在温湿度独立控制的原理基础之上,根据西北地区的气候特点,提出了将干式风机盘管与蒸发冷却相结合的半集中式空调系统。该系统解决了目前蒸发冷却空调系统中存在的风管尺寸大、难以分室控制等问题。最后,结合工程实例对该系统的设计过程进行了分析,指出了使用蒸发冷却+干式风机盘管半集中式空调系统比直流式全新风系统节省能耗21.9%以上。

A new semi-central air conditioning system of evaporative cooling and dry fan-coil unit in the base of the theory of independent temperature and humidity control is presented in this paper. It resolves many problems of air evaporative cooling system that has been used widely in Northwest of China now, such as high-energy consumption, big air-ducts and difficult control in separate room. Combining with example, the paper analyzes the design process of the above semi-central system and point out that it can save about 21.9% energy consumption. Finally, a device is introduced that can supply cooled water that approaching dew-point temperature of air indoor.