Criticality Analysis of Power-plant Equipments Using the Analytic Hierarchy Process

Maintenance is one of the important activities in any industry. In a large industry, in order to prioritize the maintenance action, we need to identify the critical equipments. The present paper has explored to identify the critical equipments of a coal based power plant and rank them accordingly. Multiple criteria like: environmental impact (EI), customer inconvenience (CI) and maintenance cost (MC) has been used for decision making. Out of the three above mentioned criterion, environmental data was very difficult to get, hence expert judgment has been used to quantify it. Finally, AHP method has been used to rank the equipments on the basis of selected multiple criterions.