Category Archives: Papers & Articles
Article: Best Practices for Wind Project Partial Repowering
May 2, 2019 – Sargent & Lundy’s energy consultants contributed an article exploring best practices for wind project partial repowering to the May issue of POWER magazine. Authors Eric DeCristofaro, Eric Soderlund, and Matthew Thibodeau share critical considerations, common challenges, and … Continue reading
White Paper: Storm Surge and Wave Impact of Low-Probability Hurricanes
Abstract Hurricanes pose major threats to coastal communities and sensitive infrastructure, including nuclear power plants, located in the vicinity of hurricane-prone coastal regions. This study focuses on evaluating the storm surge and wave impact of low-probability hurricanes on the lower … Continue reading
White Paper: Forensic Analysis of Gas Turbine-Generator Shaft Failures Due to Possible Subsynchronous Resonance
Abstract During the beginning of the commercial operation of a natural gas power plant* in 2016, several units at a multi-unit station experienced problems. Event records showed excessive power oscillations in the subsynchronous range, at frequencies which corresponded to the … Continue reading
White Paper: Limitations of Steady-State Unbalanced Load Flow Software for Analysis of Induction Motor Behavior During Voltage Unbalance Conditions
Abstract With increasing levels of penetration of distributed energy resources (DER), there has been more focus in recent years on the assessment of the adequacy of distribution circuits. Three-phase distribution circuits have typically operated with high levels of unbalance. For … Continue reading
White Paper: Nuclear Plant Auxiliary System Modeling & Analysis for OPC
Abstract The analysis of open phase conditions (OPC) at nuclear power plants represents an analytically complex industry challenge. As part of Sargent & Lundy’s ongoing efforts to advance research to improve detection and mitigation analysis for all OPCs, the firm … Continue reading
White Paper: Fast Bus Transfers For Open Phase Analysis at Nuclear Power Plants
Abstract Open phase events, when undetected in a timely manner, can be detrimental to motors; and therefore, could result in loss of safety functions that are necessary for ensuring safe plant shutdown. Sargent & Lundy specializes in identifying, designing, and … Continue reading
Article: Stoneway Capital Corp Secures PFI “Latin American Bond Deal of the Year” Distinction
Stoneway’s Las Palmas project site in Argentina January 10, 2018 – Project Finance International (PFI) announced its PFI Awards in the recently published 2018 PFI Yearbook, an annual publication that looks at events from the previous year. In its Americas Awards … Continue reading
White Paper: Wind Project Repowering
Abstract As the global fleet of wind power projects continues to grow and age, and with significant improvements to turbine technology in the past decade, repowering is increasingly prevalent. The current trend favors partial repowering, in which the existing wind … Continue reading
Article: Sargent & Lundy Combustion Turbine Expertise Featured in Power Engineering Magazine
October 19, 2017 – Sargent & Lundy’s Edwin Giermak, Raj Gaikwad, and Steven Warren authored an article in the September 2017 issue of Power Engineering magazine. The article, “Advanced Technology Combustion Turbines In Combined-Cycle Applications,” provides an overview of some … Continue reading
Simulating Pressure Transient Events in the Fuel Gas Supply to a Multi-Block Combined Cycle Plant
Abstract As power plant combustion turbines (CTs) are pushed towards higher thermal efficiencies, increased attention is being given to operating requirements for their fuel gas supply such as the maximum allowable rate-of-change in pressure. It is important to perform detailed … Continue reading
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