A Strategic Reliability Centered Maintenance for Electrical Equipment in a Chemical Plant
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Abstract
This paper proposes a maintenance strategy for electrical equipment in a chemical plant from the reliability perspective. Two types of the plant downtime cost are modeled. One is the planned downtime cost consisting of opportunity cost and scheduled maintenance cost. The other is the unplanned downtime cost consisting of opportunity cost, plant recovery operation cost, and damage of material loss. A risk of the condition without maintenance is assessed by using the downtime cost model and a modeled reliability curve of the electrical equipment and decision making for optimal frequency of maintenance is given through the comparison of the evaluated risk and the scheduled maintenance cost. A demonstration using a simplified chemical plant model is shown for the verification of the proposed method
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