20-25 May 2022
POWERGEN 2022

Sessions

All Sessions
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Conference
Feasibility of Achieving 62% Efficiencies for Combined Cycles Based on a 200-MW Gas Turbine
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query_builder 2:00pm - 2:30pm
place D222, Second Level
card_travel Presentation
mic English
Feasibility of Achieving 62% Efficiencies for Combined Cycles Based on a 200-MW Gas Turbine
The current thermal performance of advanced gas turbines (J class) leads to combined cycle efficiencies exceeding 62%. Such results were achieved by making the gas turbines bigger in excess of 350 MW (larger air flow) and by increasing the firing temperature. However, a very significant part of power generation market, particularly in support of solar or wind renewable power production, requires smaller gas turbines, producing in a 1x1 combined cycle configuration around 300-350 MW. The paper investigates options to implement improvements realized by current J class gas turbines to a smaller gas turbine producing around 200 MW. It describes the challenges for such endeavor. Taking each of the gas turbine components from the intake, compressor, combustor, turbine and exhaust, the paper examines the viability of technical solutions implemented in larger gas turbines (increased air flow, larger physical dimensions, more fuel flow etc.) to a lesser output gas turbine. It discusses also the impact of a smaller gas turbine on the bottoming cycle major equipment (HRSG, steam turbine and balance of plant. Finally the study attempts to predict the feasibility of combined cycle efficiencies exceeding 61% combined cycles based on a gas turbine with a 200 MW output
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Initiate
Reslient Power Systems Pitch
Reslient Power Systems Pitch
Dominion Energy Innovation Center's DEIC Accelerate program introduced 15 startups to dozens of business units across Dominion Energy in its first two years. In this session, Adam Sledd of DEIC and Michael Beiro of Linebird will discuss how the program creates value for both the utility and the startups.  They will cover how a startup can maximize its opportunity to quickly build customer relationships, and how the utility benefits from creating a formal framework to engage startup companies.
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Conference
Designing Resiliency in Aeroderivative Turbine Peaking Facilities
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query_builder 2:30pm - 3:00pm
place D222, Second Level
card_travel Presentation
mic English
Designing Resiliency in Aeroderivative Turbine Peaking Facilities
Intensification of decarbonization goals, by both power producers and consumers, has resulted in an abundance of renewable power generation. The intermittent nature of this renewable generation has exacerbated the need for fast, flexible, and reliable peaking power to offer grid firming capabilities. As fossil fuel base-loaded generating facilities continue to be phased out, the resiliency of peaking facilities is critical to public safety and economic stability – especially during times of extreme weather events. Aeroderivative turbines have been a prevailing peaking power technology due to valuable attributes such as faststart, rapid load-following, high availability/reliability, and merchant ancillary services (e.g. frequency regulation, responsive reserves, non-spinning reserve etc.). Additionally, the ability to run on hydrogen fuel blends (and eventually 100% hydrogen fuel) makes them a valuable technology in a future low carbon economy. In a cost-competitive market, both developers and existing owners must holistically consider design requirements for their aeroderivative turbine facility to ensure the economic viability of a project. Turbine packages must be prepared to operate in extreme ambient conditions. The design must consider anti-icing technology to ensure cold-weather operation. Similarly, the design must include performance augmentation options to maintain power output during high ambient temperature. To ensure resiliency, Balance of Plant (BOP) design must ensure a failure on a facility component does not result in lost power. These design considerations include sufficient water and back-up fuel storage, facility winterization, redundancy, and civil seismic/wind rating. Finally, a comprehensive operations strategy coupled with modern remote monitoring and diagnostic capabilities helps ensure continuous availability of the facility. A case-study of a 6x LM6000 facility operating in the ERCOT region during the winter storms of 2021 demonstrates that a peaking facility designed for resiliency can ensure sustained power generation during the most critical demand periods while also offers facility owners the requisite return on investment.
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Initiate
AWS Start Ups & Culture of Innovation
AWS Start Ups & Culture of Innovation
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Networking
Networking on Tap Reception
Networking on Tap Reception
Company Booth Number
UBC Millwrights 5117
WEG Electric Motors 5025
S T Cotter Turbine Services Inc. 4139
Industronic Inc     4333
Tuff Tube Transition 4765

Join your colleagues for a drink on the exhibit floor! Thanks to our sponsors there will be bars available throughout the exhibit hall located at each sponsor's booth.
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Networking
Powerful Young Professionals Happy Hour
Powerful Young Professionals Happy Hour
The fostering and nurturing of young talent is a central pillar of Initiate, whether an undergraduate or postgraduate student or a young professional at the beginning of their career.
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Networking
Power Play
Power Play
Join us for the POWERGEN & DISTRIBUTECH Joint Networking Party, Power Play. Network with your industry peers at our sports-themed event.
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Conference
Lifetime Assessment of HRSG Pressure Parts and Repair/Replacement Challenges
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query_builder 8:30am - 9:00am
place D222, Second Level
card_travel Presentation
mic English
Lifetime Assessment of HRSG Pressure Parts and Repair/Replacement Challenges
HRSGs have generally high reliability with regard to pressure parts including tubes, piping and headers but inspection, testing and repairs are more difficult and time consuming than in other boilers. In many cases by the time leaks are evident, damage to the tubes, tube panels (HARPS) and tube modules can be widespread. Repairs can require complete replacement of HARPS and/or entire tube modules. These require advance planning and procurement to be done successfully in an operational HRSG. Extensive repairs and replacements can also be required due to defects in fabrication, construction and commissioning or from accidents such as gas turbine fires and explosions. It is a challenge to develop a consistent reliable life prediction and management program that accounts for unit dispatch, upgrades, layup and fuel changes. Since only a few leaks or tube failures have a critical impact on station performance, major repairs and replacements must be planned and implemented as soon as a large fraction of reliable life is expended. This presentation outlines methods for effective life prediction based on plant history and performance simulation. These results are then translated into Effective Starts/Equivalent Operating Hours format for practical use by owners. Once lifetime limits are reached actions must be taken to design, procure and install or repair these major components. Options for replacement tube module design and fabrication will be discussed including key aspects of quality assurance, scheduling and installation.
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Conference
The Importance of Overexcitation Protection for Generators and Generator Step-up Transformers
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query_builder 9:00am - 9:30am
place D222, Second Level
card_travel Presentation
mic English
The Importance of Overexcitation Protection for Generators and Generator Step-up Transformers
“Overexcitation of a generator or any transformers connected to the generator will occur whenever the ratio of the voltage to frequency (V/Hz) applied to the terminals of the equipment in excess of the machines rating. Overexcitation causes saturation of the magnetic core of the generator or connected transformers, and stray flux may be induced in non-laminated components that are not designed to carry flux. Excessive flux may also cause excessive eddy currents in the generator laminations that result in excessive voltages between laminations. This may cause severe overheating in the generator or transformer and eventual breakdown in insulation. The field current in the generator could also be excessive.” This paper will provide insight into the causes of overexcitation from both operations, and outside influences. We will also present information on industry standards on how to derive proper settings for overexcitation protective relaying, according to IEEE and NERC recommendations, and provide proper testing techniques to validate settings.
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Conference
A Look at Different Valve Applications with the Operations of CCPP Transitioning from Base Load to Cycling Operations
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query_builder 9:30am - 10:00am
place D222, Second Level
card_travel Presentation
mic English
A Look at Different Valve Applications with the Operations of CCPP Transitioning from Base Load to Cycling Operations
We will go over the different valve applications that are involved with the operations of CCPP transitioning from Base load to cycling operations. Areas we will cover are HP, IP, LP bypass systems and how they can affect the efficiency of your steam systems. How to protect your Reheat coils from damage when fast starting the boiler system. We will discuss how desuperheaters and attemperators are reacting in the steam system when a plant must cycle continuously. We will go over the damaging effects of using the wrong equipment when it comes to steam cooling. We will discuss what upgrades will help with these issues and help to raise the efficiency of your plants steam system.
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