Risk-based inspection (RBI) can be used to evaluate the risk level of plant equipment, in this case the heat exchangers. This evaluation is performed by assigning inspection priorities, which results in reducing the facility's risk level, as well as optimizing budget resources. This article describes a method of implementing an RBI program. This semiquantitative methodology uses a hazard and operability (HAZOP) study, a checklist and identification of fault mechanisms to estimate fault is an optimal maintenance program based on inspection, which brings benefits that include.
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