May-June 2019 NPJ

42 NuclearPlantJournal.com Nuclear Plant Journal, May-June 2019 Increasing MTBR... ( Continued from page 41) In this case, the performance test curve showcased highly favorable results in regards to the pump’s original operating curve. The test provided validation of the implemented upgrades, modifications, and performance improvements for successful installation and operation. Benefits The service organization’s in- depth engineering knowledge and diverse experience with a multitude of pumps and pumping systems allowed them to provide the plant with a unique and strategic solution. This solution eliminated the need to purchase a new pump and the repair process saved and restored the impellers. The noted upgrades and modifications, validated through performance testing, allowed the service organization to reduce the repair time while increasing pump efficiency. The upgraded bearings and shaft columns ensured the pump’s Mean Time Between Repair (MTBR) would be optimized significantly. Ultimately, the service organization was instrumental in creating a cost-effective and innovative solution for the plant, allowing them to An in-depth hydraulic analysis of the impeller was required to ensure all performance characteristics were designed properly. The performance test curve showcased highly favorable results in regards to the pump’s original operating curve. avoid running two pumps to failure which could result in an unplanned outage. Contact: Faisal Salman, HydroAire, telephone: (312) 399-9913, email: fsalman@hydroinc.com .