Systems and methods for improved reliability operations

摘要

A system for improved reliability operations of a system with a heat recovery steam generator (HRSG) are presented. The system includes a processor configured to execute a model library to model a safety system. The model library includes a plurality of subsystem models each configured to derive a reliability measure. The system also includes the HRSG and an HRSG advisory system. The HRSG advisory system may be executed by the processor and is configured to receive one or more condition monitoring algorithm results, receive one or more measurements; and determine a probability of failure for the HRSG based at least in part on the one or more condition monitoring algorithm results, the one or more measurements, the model library, or a combination thereof. Moreover, determining the probability of failure includes determining a most likely state of a plurality of states of the HRSG.

主权项

1. A system comprising:
a processor configured to execute a model library to model a safety system, wherein the model library comprises a plurality of subsystem models, and each of the plurality of subsystem models is configured to derive a reliability measure; a heat recovery steam generator (HRSG); and an HRSG advisory system executable by the processor and configured to:
receive one or more condition monitoring algorithm results comprising closed loop processor monitoring algorithm results derived using at least one of the following: auto correlation function (ACF), relative damping index (RDI), stiction index (SI), non-Gaussanity index (NGI), or non-linearity index (NLI);receive one or more measurements; anddetermine a probability of failure for the HRSG based at least in part on the one or more condition monitoring algorithm results, the one or more measurements, the model library, or a combination thereof, wherein determining the probability of failure comprises determining a most likely state of a plurality of states of the HRSG.