Upgrading a Set of Large Cooling Water Pumps with the Aim to Increase Capacity at Least 13 Percent and Minimize Impeller Cavitation - (PPT)

摘要

Up-rate of Nuclear Power Station. Increase of electrical output power required increase of cooling water capacity (> 13%). Existing cooling water pumps (CWPs) are suffering from cavitation attack. CWP retrofit design objective: - Cooling water capacity increase of 13%+; - Minimize impeller cavitation CWP E-motor replacement (PCWP↑)-System start-up transient analysis.