Recognized for Best Practices in O&M, Safety, Workforce Development, Outage Management Foam inserts prevent air flow through offline gas turbines When gas turbines (GT) are shut down for extended periods in Georgia, the high humidity and natural draft through the HRSGs creates problematic condensation on tube fins. Rusting occurs, especially when water is still present […]
2018 BEST OF THE BEST PRACTICES: Effingham County Power Read More »
The 501F fleet was recognized by peers with five Best Practices awards in the 2018 judging. The annual program, sponsored by CCJ, has as its primary objective recognition of the valuable contributions made by owner/operator personnel to improve the safety and performance of generating facilities powered by gas turbines. In this section, 501F plants share
501F users share best practices with colleagues Read More »
Operate drain valves on different HPSH harps simultaneously, not in sequence, prior to and during hot, pressurized startups. Most operators know it’s important to drain the high-pressure superheater during startup before steam flow is initiated to prevent accumulated water at the bottom of the harps from migrating up some tubes—quenching them and the upper
HRSG January O&M tip: Drain valves Read More »
The Air-Cooled Condenser Users Group (ACCUG), established by NV Energy in 2009, has recently publish technical guidance document ACC.02, Guidelines for Finned Tube Cleaning in Air-Cooled Condensers. This document includes fundamental principles, operational factors that can limit efficiency, types of tube fouling, debris removal methods and examples, cleaning frequency, as well as safety and environmental concerns. Following is a overview.
ACC Users Group publishes tube cleaning guidelines Read More »
Last year, NAES Corp, well known to CCJ ONsite readers as a leading third-party plant O&M services provider, acquired Gridforce Energy Management LLC, extending NAES’ services into the transmission and distribution arena. Gridforce’s genesis was at Duke Energy North America (DENA) back in the late 1990s when the industry was driving towards unbridled competition. For almost 20
NAES fills reliability gap at the plant/grid interface Read More »
Richard Walton of SSE (formerly Scottish & Southern Energy plc), spoke to participants in European Technology Development Ltd’s International Conference on Power Plant Operation and Flexibility, London, July 2018, on thermal transients and their impacts throughout the company’s fleet, suggesting more targeted inspections, monthly monitoring and reporting, trending and investigating, and the need for improved industry guidance. Details
Rob Wang of Engineering Analysis Services Ltd (UK), presented on outage planning and life extension of cycling plants at European Technology Development Ltd’s International Conference on Power Plant Operation and Flexibility, London, July 2018. He highlighted both piping system health management and analytical techniques for component life assessment. Piping system details are, perhaps, too often overlooked. Wang reminded participants of
The Air-Cooled Condenser Users Group’s 10th annual meeting (October 2018, Colorado Springs) hosted over 100 participants—more than half users, with first-timers in the majority. The overriding takeaway this year was new information, supported by informative looks into the fundamentals. Such balance expands the benefits of meetings, concludes CCJ Consulting Editor Steve Stultz, who attended the conference for CCJ
Impact of chemistry on ACC performance once again a focal point of user group meeting Read More »
Part 2 of CCJ ONsite’s coverage (access part 1 here) of the Air-Cooled Condenser Users Group’s 10th annual meeting (October 2018, Colorado Springs) by Consulting Editor Steve Stultz focuses on air in-leakage, which increases vacuum and contributes to a loss in thermal performance. Ingress of oxygen and carbon dioxide also can cause problems in the steam/water cycle and
Air in-leakage: ACC performance thief Read More »
Capitalizing on work presented by Xcel Energy at meetings of the HRSG Forum with Bob Anderson, ETD’s Dr Ahmed Shibli and William Moore produced an extensive report for the consultancy’s Group Sponsored Project on drones and robots for powerplant inspection. The highlights of this work were discussed at European Technology Development Ltd’s International Conference on Power Plant Operation and Flexibility, London,
