Abstract
Maintenance is highly essential as to support the machine availability, product quality and plant safety. The timely repair at minimum coast is the basic criteria for good maintenance. Appropriate maintenance can sustain continuous and reliable operation with reduction in down time, high productivity, number of secondary failures, low inventory level and accident of the plant. In spite of high initial investment, most of the industries adopt condition based maintenance (CBM) to avoid sudden disruption in production. CBM is an important tool which includes observing, monitoring, diagnosis and prognosis for running a plant seamlessly, as this maintenance planning and actions have become an integral part of engineering investigation. In this paper, condition monitoring of Induced Draft (ID) fan in an Aluminium smelter has been done while it was in operation. The vibration of ID fan was measured and analyzed to detect the defect of its impeller and corrected subsequently.
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