第 2 期 袁良卿等：某智能大厦空调系统冷源方案比较 111 Abstract: For high-rise buildings, it is important to make a comparison between different air-conditioning refrigeration schemes because the application of different air-conditioning refrigeration schemes would lead to different energy consumptions and investments. In the paper, two air-conditioning refrigeration schemes (water-cooled and air-cooled) for