13 Apr AUSTRALASIAN HRSG USERS GROUP (AHUG) 2011
HRSG AND HIGH ENERGY PIPING WELD INSPECTIONS IN COMBINED CYCLE POWER PLANTS.
DEVELOPING A COMPREHENSIVE WELD INSPECTION PROGRAM TO MANAGE RISK.
Presentations by Anita Zunker, PEI, with Contact Energy
An early phase weld inspection program at Contact Energy revealed day on weld defects and in-service defects in the high energy piping systems construction from P91 and 304H materials. As a result of these inspections a number of weld repairs were undertaken and a more comprehensive weld inspection program was developed.
Key points for this presentation:
1. The importance of understanding the real condition of your plant
2. Managing risk. Due to the size of the piping system, any inspection programme can only be a sampling system.
The presentation outlined the process applied when developing a detailed inspection programme for high energy piping on Contact Energy’s CCGT power plants.