Compressor II（压缩机）
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8月24日下午8：30-12：30，主题为"Compressor II（压缩机）"在北京国际会议中心305—C会议室召开。
演讲内容摘要：
The energy performances of a 440-kW air-conditioning factory-assembled water chiller with two totally oil-free,variable speed compressors are presented. The new water chiller has been designed for an institutional HVAC system with mostly process air-conditioning charges. Several thermodynamic and electrical parameters allowed calculating the Non-Standard Part Load Values for summer operation in a cold climate. The results prove that variable-speed compressors with magnetic bearings and digital electronic controls for air-cooled water chillers achieve high energy efficiencies. Compared to the replaced 25-years old water chiller,the part-load efficiency has been improved by 49%,while ensuring similar indoor thermal conditions for process equipment and occupants,and generating less noise.
演讲PPT（之一）
第22届国际制冷大会于2007年8月21日在北京国际会议中心隆重召开，会议为来自世界各地的科学家和工程师提供一个互相交流和分享各自成功经验的机会，以使制冷技术在今后几十年保持持续快速的发展。
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