Výsledky vyhledávání - "Steven A. Lefton"

A New Paradigm: Cycling Operations at Nuclear Power Plants in the United States

Autor: Nikhil Kumar, Douglas Hilleman, Steven A. Lefton

Publikováno v: Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Plant Systems, Structures and Components; Codes, Standards, Licensing and Regulatory Issues.

Nuclear power plants are no longer immune to cycling operation. While certain nuclear power plants in Europe have been performing load following operation, this type of operation has largely been avoided in the United States. Due to increasing contri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5fc3dc04bdde55f7c207ed7d661cf3c8
https://doi.org/10.1115/icone22-30241

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A New Paradigm: Cycling Operations at Nuclear Power Plants in the United States

Autor: Douglas Hilleman, Nikhil Kumar, Dwight Agan, Steven A. Lefton

Publikováno v: Volume 2: Reliability, Availability and Maintainability (RAM); Plant Systems, Structures, Components and Materials Issues; Simple and Combined Cycles; Advanced Energy Systems and Renewables (Wind, Solar and Geothermal); Energy Water Nexus; Thermal Hydraulics and CFD; Nuclear Plant Design, Licensing and Construction; Performance Testing and Performance Test Codes.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f525edab84ce5eee7f7316ee2a2f171d
https://doi.org/10.1115/power2013-98079

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Power plant cycling measure - Evaluating historical cycling to model future grid operations

Autor: Kent K. Coleman, Dwight Agan, Clayton Lee, Nikhil Kumar, S. Paterson, Steven A. Lefton

Publikováno v: 2013 IEEE Power & Energy Society General Meeting.

Increasing penetration of wind and solar power will impact the operations of conventional generation on the power grid. Increased cycling - on/off as well as load following, and ramping will result in increased capital, operations and maintenance cos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::beed0950769cc2b3692100aa6dbf4d97
https://doi.org/10.1109/pesmg.2013.6672754

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Power Plant Cycling Costs

Autor: Philip M. Besuner, Dwight Agan, Steven A. Lefton, Nikil Kumar, Douglas Hilleman

This report provides a detailed review of the most up to date data available on power plant cycling costs. The primary objective of this report is to increase awareness of power plant cycling cost, the use of these costs in renewable integration stud

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7703d2944dbbe54b19192e939df0eae4
https://doi.org/10.2172/1046269

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Impacts of wind and solar on emissions and wear and tear of fossil-fueled generators

Autor: P. Besuner, Gregory Brinkman, Nikhil Kumar, Debra Lew, Dwight Agan, Steven A. Lefton

Publikováno v: 2012 IEEE Power and Energy Society General Meeting.

High penetrations of wind and solar power will impact the operations of the conventional generators on the power system. Regional integration studies have shown that wind and solar may cause fossil-fueled generators to cycle on and off and load follo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::35532fd13199690b804f586d3aec32ef
https://doi.org/10.1109/pesgm.2012.6343967

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The Value of Demand Response (DR) to Mitigate Wind Integration Costs in a Smart Grid

Autor: Nikhil Kumar, Steven A. Lefton

Publikováno v: ASME 2011 Power Conference, Volume 2.

In the last five years the electric grid worldwide has seen increasing amounts of installed wind generation capacity. Over the last five years, North America (USA and Canada) has witnessed wind capacity grow at an annual rate of over 30%. At the same

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed736be7b951d6e050d420273a4807aa
https://doi.org/10.1115/power2011-55200

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Analysis of Cycling Impacts on Combined Cycle Heat Recovery Steam Generators and Evaluating Future Costs of Countermeasures to Reduce Impacts

Autor: G. Paul Grimsrud, Jeffrey L. Grover, Steven A. Lefton, Philip M. Besuner, Dwight Agan

Publikováno v: ASME 2008 Power Conference.

This paper will discuss cycling heat recovery steam generators (HRSG) at combined cycle plants and observed damaging tube temperature transients in the HRSG. APTECH’s cost of cycling methodology is discussed. HRSG transients are selected and the HR

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48770762e5832c1b639f9b747b5e81d8
https://doi.org/10.1115/power2008-60026

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Failure to Achieve Hot Section Component Service Intervals: Why and What to Do About it

Autor: Todd A. Kuntz, Thomas D. Burnett, Steven A. Lefton, Steve R. Paterson

Publikováno v: Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award.

Recent work done by Aptech Engineering Services, Inc. (APTECH) has demonstrated that many hot section gas turbine components are not achieving their intended service lives and/or maintenance intervals, falling short by a factor of as much as ten. As

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c4f724b0e0bdbe3f3fbc27f760cbf070
https://doi.org/10.1115/97-gt-138

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