Research on fault Simulation and Diagnosis Software of Screw Chiller

作     者：Zheng Jie Shun Jie Zhou Yuli Liu Wei (Faculty of Urban Construction and Environment Engineering Chongqing University Chongqing China) (The Key Laboratory of Three Gorges Reservoir Area of Chinese Education Ministry China) 

会议名称：《第一届国际测量仪器与测试自动化学术会议》

会议日期：2006年

学科分类：080705[工学-制冷及低温工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：Supported by Key Teacher Foundation of Chongqing University 

关 键 词：Screw chiller fault detection characteristic parameter fault rules. 

摘      要：正The faults of central air-conditioning system are usually judged by human experience, which will cause certain lagging even mistake. Once the faults happen in the systems the economic loss is inevitable. So it’s meaningful to do some research on fault detection and diagnosis of HVAC systems for equipment maintenance. This paper analyses the working characteristics of the Refrigerating Unit and the faults of the Screw Chiller rationally, and simulates eight common faults of the Screw Chiller on the experimental platform. According to the data, five parameters are chosen as characteristic parameters for fault detection. The variation of these parameters forms the rules of fault detection. Finally, we developed the application software which could properly detect certain faults based on the results.