Evaluation of GSA Maintenance Practices of Large Centrifugal Chillers and Reviewof GSA Refrigerant Management Practices

摘要

The study contains two major subjects involving maintenance of large centrifugalchillers in the General Services Administration (GSA) facilities. The first part is to use nondestructive testing (NDT) techniques for chiller testing and maintenance. NDT techniques investigated are visual inspection, leak testing, vibration analysis, infrared thermal testing, eddy current testing, oil analysis, and acoustic emission testing. With the exception of acoustic emission testing, all other techniques are recommended for GSA chiller maintenance. The second part of the study is about refrigerant management.