Large-Diameter Cooling Water Pipe and Penstocks: Selecting and Applying Linings

From JPCL, August 2019

By Raymond S. Tombaugh, KTA-Tator, Inc.

The installation of linings in large-diameter cooling pipes and penstocks is a major investment for hydroelectric and other power plants. The application should be performed in an expedient manner to minimize outage time and should last for many years—20 or more—without the need for maintenance painting. This is important because many hydroelectric plants are located in remote areas. To achieve these goals, planning must be done long before the start of the lining process. In this article, the author provides a compilation of the necessary tasks to plan for in order to implement a successful application. ...