A review on temperature and humidity control methods focusing on air-conditioning equipment and control algorithms applied in small-to-medium-sized buildings
A review on temperature and humidity control methods focusing on air-conditioning equipment and control algorithms applied in small-to-medium-sized buildings
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DOI：
10.1016/j.enbuild.2017.12.038
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发表时间：
2018-03
影响因子：
6.7
通讯作者：
Xiangguo Xu;Z. Zhong;S. Deng;Xiaobo Zhang
中科院分区：
文献类型：
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作者：
Xiangguo Xu;Z. Zhong;S. Deng;Xiaobo Zhang
湿度是影响热舒适度和室内空气质量的重要因素。大型建筑物的空调（A/C）系统可以采用不同的设备来独立控制温度和湿度。然而，中小型建筑中常见的空调系统由于空间限制，没有专门的处理湿度的装置，这可能导致这些建筑内的湿度无法调节。本文总结了使用空调系统控制这些建筑物中的温度和湿度的两种方法。一是修改空调系统结构或增设适合中小型建筑的除湿设备，以解耦温湿度控制回路。二是开发先进的控制算法，实现变速直膨式空调机组的温度和湿度同步控制。介绍了这两种方法的原理、优点和障碍。由于之前两种方法的发展路径是完全分开的，因此讨论了两种方法结合所带来的节能和更好的控制性能的潜在好处。希望本文能够推动相关研究和应用。
Humidity is an important factor that influences both thermal comfort and indoor air quality. Air-conditioning (A/C) systems in large-scale buildings can employ different equipment to control temperature and humidity independently. However, A/C systems commonly seen in small- and medium-sized buildings have no specific device to deal with moisture due to space limitations, which may leave humidity in these buildings without regulation. This paper summarizes two methods applied to control temperature and humidity in these buildings using A/C systems. One is to modify the structure of A/C systems or to introduce an additional dehumidifying equipment that is adaptive in small- and medium-sized buildings to decouple temperature and humidity control loops. The other is to develop advanced control algorithms to realize simultaneous temperature and humidity control in a variable speed direct expansion air-conditioning unit. Principles, merits, and obstacles of these two methods are presented. Since the paths for development of the two methods were totally separated before, potential benefits of energy saving and better control performance brought by combining the two methods are discussed. It is expected that this paper could promote relevant studies and applications.