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Consider automated fault detection systems to improve facility reliability

10.01.2012  |  Szladow, A. J.,  REDUCT & Lobbe Technologies Inc., Richmond, British Columbia, Canada

Keywords: [alarms] [alarm system] [safety] [reliability] [process control] [fault detection]

Automated fault detection and diagnosis systems (AFDDSs) are well established in many consumer and industrial sectors.1 The conventional limit-value based (high/low alarms) fault detection and diagnosis systems have the advantage of simplicity and reliability. Yet, they also have a major weakness. These systems can only react to the deterioration of system conditions, and they do not provide sufficient time and information to detect and diagnose anomalous conditions proactively. Table 1 summarizes the relative advantages of AFDDS vs. standard FDDS control. This article addresses how to implement an AFDDS in a refinery, and discusses the advantages and key issues with AFDDS.

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