Development of Maintenance Strategy to Improve Performance of Induce Draft Wet Cooling Tower

Throughout the years, the importance of the maintenance management system and their functions has grown rapidly. Cooling towers are used in many process applications in the various industries. Reliability of these towers is crucial. In many cases, redundant towers are installed to ensure a process will not have to be stopped due to a cooling tower failure. The most prevalent cause of cooling tower downtime is failure of bearings, improper water distribution by the nozzles, fan unbalance, failure of the gearbox or associated mechanical components, such as the driveshaft or disc couplings etc. Further, the elimination of these components reduces the losses in the drive system and offers the possibility for improved overall system efficiency. To succeed in the ever-growing competitive global marketplace, it is vital for modem industries to reduce costs related to asset maintenance, repair and replacement, which directly affects the cost of manufactured products. Unplanned downtime results in high maintenance costs. Consequently, improving maintenance efficiency provides substantial benefits to equipments. Cooling tower maintenance considering future uncertainties could improve the efficiencies of the heat transfer processes and as a result, improve the performance of the cooling tower. As a step towards incorporating uncertainties in the cooling tower consideration, this paper presents a cooling tower maintenance methodology including cooling tower trouble shooting with their causes and remedies, preventive maintenance schedule for cooling tower, optimization of cooling tower overhauling activity in maintenance and monitoring technologies. The methodology has been presented, allows the easy maintenance and monitoring of cooling tower with the use of new technology in drive assembly. In this present work we have prepare a preventive maintenance schedule on the basis of their failure and causes. This increases the utilization of the cooling tower and reduces the uneven breakdown maintenance.