Identification and repair of P91 material soft spots PEI were engaged to assist in the retrofit installation of a set of 4 off HP Superheater headers fabricated from Grade 91 material in a HRSG. The client had experienced a tube to header weld failure......
HP 304H Superheated Steam Piping 400 MW CCGT Our client’s operators identified a suspicious steam leak indication at the HP Steam line. The indication was very small and difficult to assess whether it was just rain water ingressing into the lagging and steaming off. Furthermore,......
HIGH ENERGY PIPING WELD INSPECTION PROGRAMMES. PEI is experienced in developing, executing and maintaining weld inspection programmes for High Energy Piping in Power Stations. RISK BASED INSPECTION PROGRAMMES PEI can develop customised Risk Based Inspection (RBI) programmes for power plants drawing on PEI’s pressure equipment......
WHAT IS RISK BASED INSPECTION & HOW TO GET THE MOST OUT OF YOUR INSPECTIONS Presentation by Anita Zunker, PEI A Risk Based Inspection (RBI) approach can assist in ensuring that the scope of inspection of a boiler is able to identify the true condition......
STRESS CORROSION CRACKING FINDINGS Presentation by Anita Zunker, PEI Due to steam demand at the time that a tube leak was identified, the decision was made to continue to operate the boiler. When opening up the boiler to repair the leaking tube, stress corrosion cracking......
HRSG AND WATER/STEAM CYCLE PRESERVATION AT TCC Presentations by Anita Zunker, PEI, with Contact Energy This presentation: 1. Outlines the process of development of a preservation strategy for the Taranaki Combined Cycle (TCC) Power Plant for Contact Energy 2. Identifies the key components to developing......
HOW TO MAKE TIMELY WELL-INFORMED DECISIONS IN OUTAGES BASED ON INSPECTION FINDINGS Presentations by Anita Zunker, PEI, with Contact Energy Why? • To minimise risk of overrun of the outage duration • To minimise risk of unplanned outages in future operation • To minimise unnecessary......
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......
HRSG AND HIGH ENERGY PIPING WELD REPAIRS AND INSPECTIONS IN COMBINED CYCLE POWER PLANTS. Auckland, New Zealand. Co-Presentation: Anita Zunker, PEI & Grant Teesdale, Contact Energy An early phase weld inspection program at Contact Energy revealed day one weld defects and in-service defects in high......
HIGH ENERGY PIPING SYSTEMS: INSPECTIONS & WELD REPAIRS Presentation by Anita Zunker, PEI, with Contact Energy PEI has worked with Contact Energy to manage their high energy piping systems at their Otahuhu B and Taranaki Combined Cycle Power plants. Contact had identified the need for......