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Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Turbine-Generator Topics for Plant Engineers: Residual Magnetism  

Science Conference Proceedings (OSTI)

The undesirable magnetization of components of rotating equipment used in the generation of electric power is a problem that has been recognized for many years; but wide understanding of the origins, detection techniques, remediation, and avoidance principles of residual magnetization has been lacking. As part of the series Turbine-Generator Topics for Plant Engineers, EPRI commissioned this report with the purpose of providing engineers active in the operation and maintenance of power ...

2013-08-23T23:59:59.000Z

2

Profitability Comparison Between Gas Turbines and Gas Engine in Biomass-Based Power Plants Using Binary Particle Swarm Optimization  

Science Conference Proceedings (OSTI)

This paper employs a binary discrete version of the classical Particle Swarm Optimization to compare the maximum net present value achieved by a gas turbines biomass plant and a gas engine biomass plant. The proposed algorithm determines the optimal ...

P. Reche López; M. Gómez González; N. Ruiz Reyes; F. Jurado

2007-06-01T23:59:59.000Z

3

Gas turbine engines  

SciTech Connect

A core engine or gas generator is described for use in a range of gas turbine engines. A multi-stage compressor and a single stage supersonic turbine are mounted on a single shaft. The compressor includes a number of stages of variable angle and the gas generator has an annular combustion chamber.

MacDonald, A.G.

1976-05-18T23:59:59.000Z

4

Single rotor turbine engine  

SciTech Connect

There has been invented a turbine engine with a single rotor which cools the engine, functions as a radial compressor, pushes air through the engine to the ignition point, and acts as an axial turbine for powering the compressor. The invention engine is designed to use a simple scheme of conventional passage shapes to provide both a radial and axial flow pattern through the single rotor, thereby allowing the radial intake air flow to cool the turbine blades and turbine exhaust gases in an axial flow to be used for energy transfer. In an alternative embodiment, an electric generator is incorporated in the engine to specifically adapt the invention for power generation. Magnets are embedded in the exhaust face of the single rotor proximate to a ring of stationary magnetic cores with windings to provide for the generation of electricity. In this alternative embodiment, the turbine is a radial inflow turbine rather than an axial turbine as used in the first embodiment. Radial inflow passages of conventional design are interleaved with radial compressor passages to allow the intake air to cool the turbine blades.

Platts, David A. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

5

Satoshi Hada Department of Gas Turbine Engineering,  

E-Print Network (OSTI)

Satoshi Hada Department of Gas Turbine Engineering, Mitsubishi Heavy Industries, Ltd., Takasago must be prevented by developing envi- ronmentally friendly power plants. Industrial gas turbines play a major role in power generation with modern high temperature gas turbines being applied in the gas

Thole, Karen A.

6

Turbine power plant system  

SciTech Connect

A turbine power plant system consisting of three sub-systems; a gas turbine sub-system, an exhaust turbine sub-system, and a steam turbine sub-system. The three turbine sub-systems use one external fuel source which is used to drive the turbine of the gas turbine sub-system. Hot exhaust fluid from the gas turbine sub-system is used to drive the turbines of the exhaust turbine sub-system and heat energy from the combustion chamber of the gas turbine sub-system is used to drive the turbine of the steam turbine sub-system. Each sub-system has a generator. In the gas turbine sub-system, air flows through several compressors and a combustion chamber and drives the gas turbine. In the exhaust turbine sub-system, hot exhaust fluid from the gas turbine sub-system flows into the second passageway arrangement of first and fourth heat exchangers and thus transfering the heat energy to the first passageway arrangement of the first and fourth heat exchangers which are connected to the inlets of first and second turbines, thus driving them. Each turbine has its own closed loop fluid cycle which consists of the turbine and three heat exchangers and which uses a fluid which boils at low temperatures. A cooler is connected to a corresponding compressor which forms another closed loop system and is used to cool the exhaust fluid from each of the two above mentioned turbines. In the steam turbine sub-system, hot fluid is used to drive the steam turbine and then it flows through a fluid duct, to a first compressor, the first fluid passageway arrangement of first and second heat exchangers, the second passageway of the first heat exchanger, the combustion chamber of the gas turbine where it receives heat energy, and then finally to the inlet of the steam turbine, all in one closed loop fluid cycle. A cooler is connected to the second passageway of the second heat exchanger in a closed loop fluid cycle, which is used to cool the turbine exhaust.

Papastavros, D.

1985-03-05T23:59:59.000Z

7

Engines, turbines and compressors directory  

SciTech Connect

This book is a directory of engines, turbines and compressors. It adds and deletes compressor engines in use by the gas industry.

1989-01-01T23:59:59.000Z

8

Plant Support Engineering: Feedwater Pump Turbine Mechanical Hydraulic Controls End-of-Life Report  

Science Conference Proceedings (OSTI)

Mechanical hydraulic controls (MHCs) in nuclear plant feedwater pump turbines (FPTs) are a high contributor to plant capacity derates. The purpose of this study was to evaluate MHCs' degradation over time and life-limiting properties in order to provide guidance about their expected life span and the point at which major refurbishment or replacement should be considered. Insights from this study should provide readers with life-cycle guidance that helps in the management of their facilities' long-term op...

2010-12-13T23:59:59.000Z

9

Steam Turbine Performance Engineer's Guide  

Science Conference Proceedings (OSTI)

The Steam Turbine Performance Engineer's Guide is meant to present the steam turbine performance engineer with the expected and important functions and responsibilities necessary to succeed in this position that are not necessarily taught in college. The instructions and recommendations in this guide, when properly executed, will improve the effectiveness of steam turbine performance engineers, positively affecting both the performance and reliability of the steam turbines under their care.

2010-12-23T23:59:59.000Z

10

Steam turbine plant  

SciTech Connect

A system for regulating the rate of closing of the turbine intake valve of a steam turbine plant is disclosed. A steam turbine is supplied from a steam generator through a turbine intake valve. A branch line conducts the steam to a bypass valve which is normally closed. In the event of conditions making it necessary to close the turbine intake valve rapidly, a regulator is provided to control the rate of closing of the turbine intake valve and the opening of the bypass valve so that the pressure conditions in the steam generator do not exceed the limits established by the manufacturer. Pressure measuring instruments are placed in the system to sense the pressure immediately upstream from the turbine intake valve and the bypass valve as well as the initial steam supply pressure. These pressure signals are transmitted to a computer which produces a control signal in accordance with predetermined conditions.

Skala, K.

1981-06-09T23:59:59.000Z

11

Turbine power plant with back pressure turbine  

SciTech Connect

A combined gas/steam turbine power plant is disclosed including a gas turbine having a combustion chamber and a steam turbine driven by steam generated with heat from the combustion gases of the gas turbine. The steam is utilized in a technological process downstream of the steam turbine. Relatively small fluctuations in back pressure are compensated by varying a delivery of fuel to the combustion chamber. Relatively large fluctuations in back pressure are compensated by supplying live steam directly to the technological process downstream of the steam turbine. Various devices are provided for conditioning the steam prior to being supplied to the technological process.

Kalt, J.; Kehlhofer, R.

1981-06-23T23:59:59.000Z

12

Gas turbine plant emissions  

SciTech Connect

Many cogeneration facilities use gas turbines combined with heat recovery boilers, and the number is increasing. At the start of 1986, over 75% of filings for new cogeneration plants included plans to burn natural gas. Depending on the geographic region, gas turbines are still one of the most popular prime movers. Emissions of pollutants from these turbines pose potential risks to the environment, particularly in geographical areas that already have high concentrations of cogeneration facilities. Although environmental regulations have concentrated on nitrogen oxides (NO/sub x/) in the past, it is now necessary to evaluate emission controls for other pollutants as well.

Davidson, L.N.; Gullett, D.E.

1987-03-01T23:59:59.000Z

13

Improving steam turbine-gas turbine plants  

SciTech Connect

Leningrad Polytechnic Institute investigated the main characteristics of combined plants according to their structure, determined by very important parameters. The following parameters were selected: utilization factor (ratio of heat added to the steam-water working medium from the heat of the exhaust gases to the entire amount of heat added to the steam-water working medium) and fuel consumption factor (ratio of heat from fuel added to the steam-water working medium to the entire consumption of heat in the combined plant). It is concluded that steam turbine-gas turbine plants working at comparatively low gas temperatures (about 800/sup 0/C) must be constructed as plants of maximum capacity, i.e., with large steam flows. Gas turbine-steam turbine plants with high-temperature gas turbines operating at a high utilization factor (approaching binary plants) ensure a qualitative rise in efficiency and have high flexibility characteristics. They are the most promising power plants. A long-term plan for development of combined plants on the basis of standard steam turbine and gas turbine equipment, the production of which is planned in the USSR and in Comecon countries, is required. This plan must be closely connected with solution of the problem of using coals for gas turbine plants.

Kirillov, I.I.; Arsen' ev, L.V.; Khodak, E.A.; Romakhova, G.A.

1979-01-01T23:59:59.000Z

14

High temperature turbine engine structure  

DOE Patents (OSTI)

A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

Carruthers, William D. (Mesa, AZ); Boyd, Gary L. (Tempe, AZ)

1992-01-01T23:59:59.000Z

15

High temperature turbine engine structure  

DOE Patents (OSTI)

A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

Carruthers, William D. (Mesa, AZ); Boyd, Gary L. (Tempe, AZ)

1993-01-01T23:59:59.000Z

16

High temperature turbine engine structure  

DOE Patents (OSTI)

A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

Carruthers, William D. (Mesa, AZ); Boyd, Gary L. (Tempe, AZ)

1994-01-01T23:59:59.000Z

17

Automotive turbine engine  

SciTech Connect

Gas flow through a turbine is divided, with part of the flow directed to the compressor for the combusion chamber and part directed to the primary power turbine. Division of the gas flow is accomplished by a mixing wheel of novel design. Before passing to the primary power turbine the gas flow passes through a secondary power turbine that drives the compressor for the combustion chamber. Both the secondary power turbine and the compressor rotate independently of the main turbine rotor shaft. The power input to the secondary power turbine is varied in accordance with the pressure differential between the gas pressure at the outlet of the compressor for the combustion chamber and the outlet from the mixing wheel. If the speed of the main turbine shaft slows down more power is put into the secondary power turbine and the combustion chamber compressor is speeded up so as to produce a higher gas pressure than would otherwise be the case.

Wirth, R.E.; Wirth, M.N.

1978-12-26T23:59:59.000Z

18

Steam assisted gas turbine engine  

SciTech Connect

A gas turbine engine is disclosed which has an integral steam power system consisting of heat absorbing boilers which convert an unpressurized liquid into an expanded and heated steam by utilizing heat normally lost through component cooling systems and the exhaust system. Upon completion of the steam power cycle, the steam is condensed back to a liquid state through a condensing system located within the compressor and other functional components of the gas turbine engine. A system of high pressure air and friction seals restrict steam or liquid condensate within designed flow bounds. The gas turbine engine disclosed is designed to give improved fuel efficiency and economy for aircraft and land use applications.

Coronel, P.D.

1982-06-08T23:59:59.000Z

19

Toward Integrated Life-limit Materials Engineering of Turbine Engine ...  

Science Conference Proceedings (OSTI)

... the design and life management of future turbine engine rotor alloys and components. ... loading variables found in the operation of advanced turbine engines.

20

Gas Turbine Engines  

Science Conference Proceedings (OSTI)

...times higher than atmospheric pressure.Ref 25The gas turbine was developed generally for main propulsion and power

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

AIAA 20033698 Aircraft Gas Turbine Engine  

E-Print Network (OSTI)

AIAA 2003­3698 Aircraft Gas Turbine Engine Simulations W. C. Reynolds , J. J. Alonso, and M. Fatica, Reston, VA 20191­4344 #12;AIAA 2003­3698 Aircraft Gas Turbine Engine Simulations W. C. Reynolds , J. J of the flowpath through complete aircraft gas turbines including the compressor, combustor, turbine, and secondary

Stanford University

22

Environmental Coatings For Gas Turbine Engine Applications  

Science Conference Proceedings (OSTI)

Presentation Title, Environmental Coatings For Gas Turbine Engine Applications. Author(s), Ming Fu, Roger Wustman, Jeffrey Williams, Douglas Konitzer.

23

High temperature turbine engine structure  

DOE Patents (OSTI)

A high temperature turbine engine includes a rotor portion having axially stacked adjacent ceramic rotor parts. A ceramic/ceramic joint structure transmits torque between the rotor parts while maintaining coaxial alignment and axially spaced mutually parallel relation thereof despite thermal and centrifugal cycling.

Boyd, Gary L. (Tempe, AZ)

1991-01-01T23:59:59.000Z

24

High temperature turbine engine structure  

DOE Patents (OSTI)

A high temperature turbine engine includes a hybrid ceramic/metallic rotor member having ceramic/metal joint structure. The disclosed joint is able to endure higher temperatures than previously possible, and aids in controlling heat transfer in the rotor member.

Boyd, Gary L. (Tempe, AZ)

1990-01-01T23:59:59.000Z

25

Turbine-Generator Topics for Power Plant Engineers: Synchronous Generator Voltage Regulator Basics  

Science Conference Proceedings (OSTI)

This material is intended for the new engineer, the control room operator, management, or the non-engineer. The basics of a synchronous generator excitation system; the fundamentals of the voltage regulator; and its controls and functions are discussed. The typical exciter types are covered, but not in detail. There is also basic information on voltage regulator maintenance issues. Put simply, the excitation system is made up of three basic component systems. The voltage regulator monitors the synchronou...

2012-02-16T23:59:59.000Z

26

Wind Turbines Electrical and Mechanical Engineering  

E-Print Network (OSTI)

Wind Turbines Electrical and Mechanical Engineering Objective · Introduce students to the concept of alternative energy. · Explain the math and scientific principles behind engineering wind turbines. Standards and how it applies to wind energy · About how surface area and shape effects wind turbine efficiency

Provancher, William

27

Turbine-Generator Topics for Power Plant Engineers: Fundamentals of Electromagnetic Signature Analysis  

Science Conference Proceedings (OSTI)

Electromagnetic signature analysis (EMSA) is the process used to evaluate the electromagnetic interference (EMI) generated by abnormalities in almost any energized power plant equipment—from cable connections to broken rotor bars in a motor to the isolated phase bus and generator step-up transformer. EMSA will detect any defect that involves EMI, noise, arcing, corona, partial discharge, gap discharge, sparking or microsparking, or any combination of these.With EMSA, every signal ...

2013-02-15T23:59:59.000Z

28

Combined gas turbine and steam turbine power plant  

SciTech Connect

A description is given of a power plant arrangement having a gas turbine, a heat recovery steam generator, a steam turbine and means for controlling steam flow from the heat recovery steam generator to the steam turbine. Steam conditions are maintained generally constant and variations in power plant loading are carried by the steam turbine while operating the gas turbine at a generally constant fuel flow.

Baker, J.M.; Clark, G.W.; Harper, D.M.; Tomlinson, L.O.

1978-04-04T23:59:59.000Z

29

Aero-engine derivative gas turbines for power generation: Thermodynamic and economic perspectives  

Science Conference Proceedings (OSTI)

Aero-engine technology has played a major part in the development of both the industrial gas turbine and, more recently, the combined cycle gas turbine (CCGT) plant. A distinction may be drawn between the direct use of developed aero-engine hardware in power generation (and in marine applications), and the more indirect influence of aero-engine technology, particularly in design of heavy-duty gas turbines. Both the direct use of aero-engine hardware, in gas turbines for power generation, and the indirect influence of aero-engine technology, in the design of more conventional heavy-duty plants (including combined cycle gas turbines, CCGTs), are reviewed.

Horlock, J.H. [Whittle Lab., Cambridge (United Kingdom)

1997-01-01T23:59:59.000Z

30

Staged combustion with piston engine and turbine engine supercharger  

DOE Patents (OSTI)

A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

Fischer, Larry E. (Los Gatos, CA); Anderson, Brian L. (Lodi, CA); O' Brien, Kevin C. (San Ramon, CA)

2006-05-09T23:59:59.000Z

31

Staged combustion with piston engine and turbine engine supercharger  

DOE Patents (OSTI)

A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

Fischer, Larry E. (Los Gatos, CA); Anderson, Brian L. (Lodi, CA); O' Brien, Kevin C. (San Ramon, CA)

2011-11-01T23:59:59.000Z

32

Application of the Concept of Exergy in the Selection of a Gas-Turbine Engine for Combined-Cycle Power Plant Design  

E-Print Network (OSTI)

It has been shown that the second-law efficiency of a gas-turbine engine may be calculated in a rational and simple manner by making use of an algebraic equation giving the exergy content of turbine exhaust as a function of exhaust temperature only. Since a high second-law efficiency of a gas-turbine engine is necessary to have high overall system efficiency, the decision maker may thus make use of the procedure presented in this work to quickly identify those gas-turbine engines that could be good candidates for combined-cycle operation.

Huang, F. F.; Naumowicz, T.

2001-05-01T23:59:59.000Z

33

Performance optimization of gas turbine engine  

Science Conference Proceedings (OSTI)

Performance optimization of a gas turbine engine can be expressed in terms of minimizing fuel consumption while maintaining nominal thrust output, maximizing thrust for the same fuel consumption and minimizing turbine blade temperature. Additional control ... Keywords: Fuel control, Gas turbines, Genetic algorithms, Optimization, Temperature control

Valceres V. R. Silva; Wael Khatib; Peter J. Fleming

2005-08-01T23:59:59.000Z

34

Gas turbine engine braking and method  

SciTech Connect

A method is described of decelerating a ground vehicle driven by a gas turbine engine having a gas generator section and a free turbine output power section driven by a gas flow from the gas generator section, comprising the steps of: altering the incidence of gas flow from the gas generator section onto the free turbine section whereby said gas flow opposes rotation of the free turbine section; increasing gas generator section speed; and subsequent to said altering and increasing steps, selectively mechanically interconnecting said gas generator and free turbine sections whereby the rotational inertia of the gas generator section tends to decelerate the free turbine section.

Mattson, G.; Woodhouse, G.

1980-07-01T23:59:59.000Z

35

How Gas Turbine Power Plants Work | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

How Gas Turbine Power Plants Work How Gas Turbine Power Plants Work How Gas Turbine Power Plants Work The combustion (gas) turbines being installed in many of today's natural-gas-fueled power plants are complex machines, but they basically involve three main sections: The compressor, which draws air into the engine, pressurizes it, and feeds it to the combustion chamber at speeds of hundreds of miles per hour. The combustion system, typically made up of a ring of fuel injectors that inject a steady stream of fuel into combustion chambers where it mixes with the air. The mixture is burned at temperatures of more than 2000 degrees F. The combustion produces a high temperature, high pressure gas stream that enters and expands through the turbine section. The turbine is an intricate array of alternate stationary and

36

Unusual plant features gas turbines  

SciTech Connect

Gas turbines were chosen by Phillips Petroleum Co. to operate the first gas-injection plant in the world to use gas-type turbines to drive reciprocating compressors. The plant is located in Lake Maracaibo, Venezuela. Gas turbines were chosen because of their inherent reliability as prime movers and for their lack of vibration. Reciprocating compressors were decided upon because of their great flexibility. Now, for the first time, the advantages of both gas turbines and reciprocating compressors are coupled on a very large scale. In this installation, the turbines will operate at about 5,000 rpm, while the compressors will run at only 270 rpm. Speed will be reduced through the giant gear boxes. The compressor platform rests on seventy- eight 36-in. piles in 100 ft of water. Piles were driven 180 ft below water level. To dehydrate the gas, Phillips will install a triethylene glycol unit. Two nearby flow stations will gather associated gas produced at the field and will pipe the gas underwater to the gas injection platform. Lamar Field is in the S. central area of Lake Maracaibo. To date, it has produced a 150 million bbl in 10 yr. Studies have indicated that a combination of waterflooding and repressuring by gas injection could double final recovery. Waterflooding began in 1963.

Franco, A.

1967-08-01T23:59:59.000Z

37

Regenerator for gas turbine engine  

DOE Patents (OSTI)

A rotary disc-type counterflow regenerator for a gas turbine engine includes a disc-shaped ceramic core surrounded by a metal rim which carries a coaxial annular ring gear. Bonding of the metal rim to the ceramic core is accomplished by constructing the metal rim in three integral portions: a driving portion disposed adjacent the ceramic core which carries the ring gear, a bonding portion disposed further away from the ceramic core and which is bonded thereto by elastomeric pads, and a connecting portion connecting the bonding portion to the driving portion. The elastomeric pads are bonded to radially flexible mounts formed as part of the metal rim by circumferential slots in the transition portion and lateral slots extending from one end of the circumferential slots across the bonding portion of the rim.

Lewakowski, John J. (Warren, MI)

1979-01-01T23:59:59.000Z

38

Combined Heat and Power Plant Steam Turbine  

E-Print Network (OSTI)

waste heat) Gas Turbine University Substation High Pressure Natural Gas Campus Electric Load SouthernCombined Heat and Power Plant Steam Turbine Steam Turbine Chiller Campus Heat Load Steam (recovered Generator Heat Recovery Alternative Uses: 1. Campus heating load 2. Steam turbine chiller to campus cooling

Rose, Michael R.

39

Gas turbine engines with particle traps  

DOE Patents (OSTI)

A gas turbine engine (10) incorporates a particle trap (46) that forms an entrapment region (73) in a plenum (24) which extends from within the combustor (18) to the inlet (32) of a radial-inflow turbine (52, 54). The engine (10) is thereby adapted to entrap particles that originate downstream from the compressor (14) and are otherwise propelled by combustion gas (22) into the turbine (52, 54). Carbonaceous particles that are dislodged from the inner wall (50) of the combustor (18) are incinerated within the entrapment region (73) during operation of the engine (10).

Boyd, Gary L. (Tempe, AZ); Sumner, D. Warren (Phoenix, AZ); Sheoran, Yogendra (Scottsdale, AZ); Judd, Z. Daniel (Phoenix, AZ)

1992-01-01T23:59:59.000Z

40

Turbine adapted maps for turbocharger engine matching  

Science Conference Proceedings (OSTI)

This paper presents a new representation of the turbine performance maps oriented for turbocharger characterization. The aim of this plot is to provide a more compact and suited form to implement in engine simulation models and to interpolate data from turbocharger test bench. The new map is based on the use of conservative parameters as turbocharger power and turbine mass flow to describe the turbine performance in all VGT positions. The curves obtained are accurately fitted with quadratic polynomials and simple interpolation techniques give reliable results. Two turbochargers characterized in an steady flow rig were used for illustrating the representation. After being implemented in a turbocharger submodel, the results obtained with the model have been compared with success against turbine performance evaluated in engine tests cells. A practical application in turbocharger matching is also provided to show how this new map can be directly employed in engine design. (author)

Tancrez, M. [PSA - Peugeot Citroen, 18 rue des fauvelles, La Garenne-Colombes (France); Galindo, J.; Guardiola, C.; Fajardo, P.; Varnier, O. [CMT - Motores Termicos, Universidad Politecnica de Valencia (Spain)

2011-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Energy Saving in Ammonia Plant by Using Gas Turbine  

E-Print Network (OSTI)

An ammonia plant, in which the IHI-SULZER Type 57 Gas Turbine is integrated in order to achieve energy saving, has started successful operation. Tile exhaust gas of the gas turbine has thermal energy of relatively high temperature, therefore, if the thermal energy of this gas is utilized effectively, the gas turbine could be superior to effectively, the gas turbine could be superior to other thermal engines in view of total energy effectiveness. As a typical example of the above use of the gas turbine, its application in the ammonia plant has now been realized. In addition to the use of the gas turbine as the driver for the process air compressor which was driven by the steam turbine, its exhaust gas is introduced to the ammonia reformer. It leads to the saving of the reformer fuel, and subsequently the energy saving of the reformer section in the plant of about 20% has been achieved. This paper describes the outline of the project, energy saving effectiveness and investigation for the application of the gas turbine in the ammonia plant.

Uji, S.; Ikeda, M.

1981-01-01T23:59:59.000Z

42

Statistical estimation of multiple faults in aircraft gas turbine engines  

E-Print Network (OSTI)

415 Statistical estimation of multiple faults in aircraft gas turbine engines S Sarkar, C Rao of multiple faults in aircraft gas-turbine engines, based on a statistical pattern recognition tool called commercial aircraft engine. Keywords: aircraft propulsion, gas turbine engines, multiple fault estimation

Ray, Asok

43

Airfoil seal system for gas turbine engine  

SciTech Connect

A turbine airfoil seal system of a turbine engine having a seal base with a plurality of seal strips extending therefrom for sealing gaps between rotational airfoils and adjacent stationary components. The seal strips may overlap each other and may be generally aligned with each other. The seal strips may flex during operation to further reduce the gap between the rotational airfoils and adjacent stationary components.

Diakunchak, Ihor S.

2013-06-25T23:59:59.000Z

44

Gas Turbine Engine Collaborative Research - NASA Glenn Research Center  

NLE Websites -- All DOE Office Websites (Extended Search)

Gas Turbine Engine Collaborative Gas Turbine Engine Collaborative Research-NASA Glenn Research Center Background Advancing the efficiency and performance levels of gas turbine technology requires high levels of fundamental understanding of the actual turbine component level technology systems. The National Aeronautics and Space Administration Glenn Research Center (NASA Glenn), with support from the Ohio State University, is planning research to compile

45

Steam turbines for cogeneration power plants  

SciTech Connect

Steam turbines for cogeneration plants may carry a combination of industrial, space heating, cooling and domestic hot water loads. These loads are hourly, weekly, and seasonally irregular and require turbines of special design to meet the load duration curve, while generating electric power. Design features and performance characteristics of one of the largest cogeneration turbine units for combined electric generation and district heat supply are presented. Different modes of operation of the cogeneration turbine under variable load conditions are discussed in conjunction with a heat load duration curve for urban heat supply. Problems associated with the retrofitting of existing condensing type turbines for cogeneration applications are identified. 4 refs.

Oliker, I.

1980-04-01T23:59:59.000Z

46

Materials in Turbine Engine Environments - Programmaster.org  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, MS&T'13 Plenary. Presentation Title, Materials in Turbine Engine ...

47

A NEW GAS TURBINE ENGINE CONCEPT FOR ELECTRICITY  

E-Print Network (OSTI)

A NEW GAS TURBINE ENGINE CONCEPT FOR ELECTRICITY GENERATION WITH INCREASED EFFICIENCY AND POWER REPORT (FAR) A NEW GAS TURBINE ENGINE CONCEPT FOR ELECTRICITY GENERATION WITH INCREASED EFFICIENCY://www.energy.ca.gov/research/index.html. #12;Page 1 A New Gas Turbine Engine Concept For Electricity Generation With Increased

48

Symbolic identification for fault detection in aircraft gas turbine engines  

E-Print Network (OSTI)

Symbolic identification for fault detection in aircraft gas turbine engines S Chakraborty, S Sarkar and computationally inexpensive technique of component-level fault detection in aircraft gas-turbine engines identification, gas turbine engines, language-theoretic analysis 1 INTRODUCTION The propulsion system of modern

Ray, Asok

49

Small gas-turbine-engine technology  

SciTech Connect

Performance of small gas turbine engines in the 250 to 1000 hp size range is significantly lower than that of large engines. Engines of this size are typically used in rotorcraft, commutercraft, general aviation, and cruise missile applications. Principal reasons for lower efficiencies of smaller engines are well known: Component efficiencies are lower by as much as 8 to 10 percentage points because of size effects. Small engines are designed for lower cycle pressures and temperatures because of smaller blading and cooling limitations. The highly developed analytical and manufacturing techniques evolved for large engines are not directly transferrable to small engines. Thus, it has been recognized that a focused effort addressing technologies for small engines was needed and could significantly impact their performance. Recently, in-house and contract studies were undertaken to identify advanced engine cycle and component requirements for substantial performance improvement of small gas turbines for projected year 2000 applications. This paper presents results of both in-house research and contract studies, conducted with Allison, AVCO Lycoming, Garrett, Teledyne CAE, and Williams International Rotorcraft results are emphasized. Projected fuel savings of 22-42% could be attained. Accompanying direct operating cost reductions of 11-17%, depending on fuel cost, were also estimated. High payoff technologies are identified for all engine applications, and recent results of experimental research to evolve the high payoff technologies are described.

Niedwiecki, R.W.; Meitner, P.L.

1991-01-01T23:59:59.000Z

50

Barr Engineering Statement of Methodology Rosemount Wind Turbine...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOEEA-1791 (May 2010) Barr Engineering Statement of Methodology Rosemount...

51

Integrated Computational Materials Engineering from a Gas Turbine ...  

Science Conference Proceedings (OSTI)

Presentation Title, Integrated Computational Materials Engineering from a Gas Turbine Engine Perspective. Author(s), John F Matlik, Ann Bolcavage. On-Site ...

52

Hydro-flow supra-turbine engine  

SciTech Connect

A turbine engine operates at high pressure and at relatively low temperatures and revolutions per minute through the use of special carburetion, compressor, combustion unit, and turbine arrangements. The system is characterized by the use of water which is vaporized and concurrently reduces the temperature of the vaporized fuel and air mixture as compression occurs, and is not physically intermixed with the combustion gases until after initial combustion takes place. The compressor includes a pair of back-to-back, four stage composite compressors to which synchronized dual carburetion or meter-flow arrangements separately supply water and gasoline or other fuel, along with air. The water absorbs heat from the compression of both of the two compressors, and the resultant vaporous product gases are routed to the jacket of a combustion chamber in which the compressed fuel and air mixture is burned. Following initial ignition and some burning of the fuel, the superheated steam and combustion products are combined, and the combination is supplied to a multistage transverse flow turbine having in the order of 17 pressure stages. The turbine includes arrangements for directing the high pressure gases back and forth through the rotor blades at different radial distances from the axis of the turbine. Exhaust gases from the turbine are applied to a ''floating'' muffler, including a rotatable inner chamber to facilitate mixing exhaust gases with the ambient air, and to disperse the high moisture content of the exhaust gases.

Neale, A.B.

1981-08-04T23:59:59.000Z

53

Airfoil for a turbine of a gas turbine engine  

SciTech Connect

An airfoil for a turbine of a gas turbine engine is provided. The airfoil comprises a main body comprising a wall structure defining an inner cavity adapted to receive a cooling air. The wall structure includes a first diffusion region and at least one first metering opening extending from the inner cavity to the first diffusion region. The wall structure further comprises at least one cooling circuit comprising a second diffusion region and at least one second metering opening extending from the first diffusion region to the second diffusion region. The at least one cooling circuit may further comprise at least one third metering opening, at least one third diffusion region and a fourth diffusion region.

Liang, George (Palm City, FL)

2010-12-21T23:59:59.000Z

54

Plant Engineering: Performance Diagnostic Test Program for the Nuclear Turbine Cycle at Korea Hydro & Nuclear Power Company  

Science Conference Proceedings (OSTI)

Currently, many power generating companies are challenged to reduce operating costs, and at the same time, the cost of unit unavailability can be significant in today's power markets. In the past decade, management of nuclear power plants, including Korea Hydro & Nuclear Power (KHNP), has been focused on reducing forced outage rates and nuclear-safety-related issues, with less attention paid to thermal performance. But recently, KHNP has been strongly challenged to increase unit thermal performance, as f...

2012-02-28T23:59:59.000Z

55

Fish-Friendly Hydropower Turbine Development & Deployment: Alden Turbine Preliminary Engineering and Model Testing  

SciTech Connect

The Alden turbine was developed through the U.S. Department of Energy's (DOE's) former Advanced Hydro Turbine Systems Program (1994-2006) and, more recently, through the Electric Power Research Institute (EPRI) and the DOE's Wind & Water Power Program. The primary goal of the engineering study described here was to provide a commercially competitive turbine design that would yield fish passage survival rates comparable to or better than the survival rates of bypassing or spilling flow. Although the turbine design was performed for site conditions corresponding to 92 ft (28 m) net head and a discharge of 1500 cfs (42.5 cms), the design can be modified for additional sites with differing operating conditions. During the turbine development, design modifications were identified for the spiral case, distributor (stay vanes and wicket gates), runner, and draft tube to improve turbine performance while maintaining features for high fish passage survival. Computational results for pressure change rates and shear within the runner passage were similar in the original and final turbine geometries, while predicted minimum pressures were higher for the final turbine. The final turbine geometry and resulting flow environments are expected to further enhance the fish passage characteristics of the turbine. Computational results for the final design were shown to improve turbine efficiencies by over 6% at the selected operating condition when compared to the original concept. Prior to the release of the hydraulic components for model fabrication, finite element analysis calculations were conducted for the stay vanes, wicket gates, and runner to verify that structural design criteria for stress and deflections were met. A physical model of the turbine was manufactured and tested with data collected for power and efficiency, cavitation limits, runaway speed, axial and radial thrust, pressure pulsations, and wicket gate torque. All parameters were observed to fall within ranges expected for conventional radial flow machines. Based on these measurements, the expected efficiency peak for prototype application is 93.64%. These data were used in the final sizing of the supporting mechanical and balance of plant equipment. The preliminary equipment cost for the design specification is $1450/kW with a total supply schedule of 28 months. This equipment supply includes turbine, generator, unit controls, limited balance of plant equipment, field installation, and commissioning. Based on the selected head and flow design conditions, fish passage survival through the final turbine is estimated to be approximately 98% for 7.9-inch (200-mm) fish, and the predicted survival reaches 100% for fish 3.9 inches (100 mm) and less in length. Note that fish up to 7.9- inches (200 mm) in length make up more than 90% of fish entrained at hydro projects in the United States. Completion of these efforts provides a mechanical and electrical design that can be readily adapted to site-specific conditions with additional engineering development comparable to costs associated with conventional turbine designs.

None

2011-10-01T23:59:59.000Z

56

Optical monitoring system for a turbine engine  

SciTech Connect

The monitoring system for a gas turbine engine including a viewing tube assembly having an inner end and an outer end. The inner end is located adjacent to a hot gas flow path within the gas turbine engine and the outer end is located adjacent to an outer casing of the gas turbine engine. An aperture wall is located at the inner end of the viewing tube assembly and an optical element is located within the viewing tube assembly adjacent to the inner end and is spaced from the aperture wall to define a cooling and purge chamber therebetween. An aperture is defined in the aperture wall for passage of light from the hot gas flow path to the optical element. Swirl passages are defined in the viewing tube assembly between the aperture wall and the optical element for passage of cooling air from a location outside the viewing tube assembly into the chamber, wherein swirl passages effect a swirling movement of air in a circumferential direction within the chamber.

Lemieux, Dennis H; Smed, Jan P; Williams, James P; Jonnalagadda, Vinay

2013-05-14T23:59:59.000Z

57

The Development of Direct Age 718 for Gas Turbine Engine Disk ...  

Science Conference Proceedings (OSTI)

as a commercial gas turbine aircraft engine disk material are described. Initial ... Engines (GEAE) in the production of gas turbine engine components (1).

58

Closed-loop air cooling system for a turbine engine  

DOE Patents (OSTI)

Method and apparatus are disclosed for providing a closed-loop air cooling system for a turbine engine. The method and apparatus provide for bleeding pressurized air from a gas turbine engine compressor for use in cooling the turbine components. The compressed air is cascaded through the various stages of the turbine. At each stage a portion of the compressed air is returned to the compressor where useful work is recovered.

North, William Edward (Winter Springs, FL)

2000-01-01T23:59:59.000Z

59

Gas turbine power plant with supersonic gas compressor - Energy ...  

A gas turbine engine. The engine is based on the use of a gas turbine driven rotor having a compression ramp traveling at a local supersonic inlet velocity (based on ...

60

Project Management Guidance when Upgrading Steam Turbines at Nuclear and Fossil Power Plants  

Science Conference Proceedings (OSTI)

Many power producers upgrade steam turbines to gain megawatts (MW) instead of installing new capacity for a variety of reasons. The engineering challenges encounteredwhen managing procurement and adequately analyzing plant support systems affected by this upgradeare becoming more pronounced.

2007-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

ARTICLE: Abradable Coatings Increase Gas Turbine Engine Efficiency  

Science Conference Proceedings (OSTI)

Oct 11, 2007 ... Topic Title: ARTICLE: Abradable Coatings Increase Gas Turbine Engine Efficiency Topic Summary: F. Ghasripoor et. al. article from Materials ...

62

Faradayic EPD of YSZ TBCs for Gas Turbine Engines  

Science Conference Proceedings (OSTI)

Presentation Title, Faradayic EPD of YSZ TBCs for Gas Turbine Engines. Author( s), Heather McCrabb, Joseph Kell. On-Site Speaker (Planned), Joseph Kell.

63

COMPRESSIVE STRESS SYSTEM FOR A GAS TURBINE ENGINE - Energy ...  

The present application provides a compressive stress system for a gas turbine engine. The compressive stress system may include a first bucket ...

64

Barr Engineering Statement of Methodology Rosemount Wind Turbine  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Barr Engineering Statement of Methodology Rosemount Wind Turbine Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010) Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010) Barr Engineering, Minneapolis engaged Truescape in May 2010 to: 1) Provide a series of TrueViewTM2 "human field of view" survey controlled photo simulations from pre-determined viewpoint locations to assist with the assessment of the potential visibility of a proposed turbine, and 2) Simulate two different height options for the turbine tower, being 80m vs. 100m. Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010)

65

Barr Engineering Statement of Methodology Rosemount Wind Turbine  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Barr Engineering Statement of Methodology Rosemount Wind Turbine Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010) Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010) Barr Engineering, Minneapolis engaged Truescape in May 2010 to: 1) Provide a series of TrueViewTM2 "human field of view" survey controlled photo simulations from pre-determined viewpoint locations to assist with the assessment of the potential visibility of a proposed turbine, and 2) Simulate two different height options for the turbine tower, being 80m vs. 100m. Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010)

66

Volumetric Geometry Reconstruction of Turbine Blades for Aircraft Engines  

E-Print Network (OSTI)

Volumetric Geometry Reconstruction of Turbine Blades for Aircraft Engines David GroÃ?mann1 and Bert-spline parametrization of turbine blades from measurement data generated by optical scanners. This new representation elements. We focus on the industrial applicability of the framework, by using standard turbine blade

Jüttler, Bert

67

Turbine engine component with cooling passages  

DOE Patents (OSTI)

A component for use in a turbine engine including a first member and a second member associated with the first member. The second member includes a plurality of connecting elements extending therefrom. The connecting elements include securing portions at ends thereof that are received in corresponding cavities formed in the first member to attach the second member to the first member. The connecting elements are constructed to space apart a first surface of the second member from a first surface of the first member such that at least one cooling passage is formed between adjacent connecting elements and the first surface of the second member and the first surface of the first member.

Arrell, Douglas J. (Oviedo, FL); James, Allister W. (Orlando, FL)

2012-01-17T23:59:59.000Z

68

DIRECT FUEL CELL/TURBINE POWER PLANT  

SciTech Connect

The subMW hybrid DFC/T power plant facility was upgraded with a Capstone C60 microturbine and a state-of-the-art full size fuel cell stack. The integration of the larger microturbine extended the capability of the hybrid power plant to operate at high power ratings with a single gas turbine without the need for supplementary air. The objectives of this phase of subMW hybrid power plant tests are to support the development of process and control and to provide the insight for the design of the packaged subMW hybrid demonstration units. The development of the ultra high efficiency multi-MW power plants was focused on the design of 40 MW power plants with efficiencies approaching 75% (LHV of natural gas). The design efforts included thermodynamic cycle analysis of key gas turbine parameters such as compression ratio.

Hossein Ghezel-Ayagh

2003-05-27T23:59:59.000Z

69

Combustor assembly in a gas turbine engine  

Science Conference Proceedings (OSTI)

A combustor assembly in a gas turbine engine. The combustor assembly includes a combustor device coupled to a main engine casing, a first fuel injection system, a transition duct, and an intermediate duct. The combustor device includes a flow sleeve for receiving pressurized air and a liner disposed radially inwardly from the flow sleeve. The first fuel injection system provides fuel that is ignited with the pressurized air creating first working gases. The intermediate duct is disposed between the liner and the transition duct and defines a path for the first working gases to flow from the liner to the transition duct. An intermediate duct inlet portion is associated with a liner outlet and allows movement between the intermediate duct and the liner. An intermediate duct outlet portion is associated with a transition duct inlet section and allows movement between the intermediate duct and the transition duct.

Wiebe, David J; Fox, Timothy A

2013-02-19T23:59:59.000Z

70

Evaluating thermographic phosphors in an operating turbine engine  

DOE Green Energy (OSTI)

The results of a field test in a commercial turbine engine showed that we can remotely measure the temperature of engine components in operating engines using thermographic phosphors. The remote- measurement method exploits the temperature dependence of the characteristic decay time of the laser-induced fluorescence of thermographic phosphors. This paper summarizes recent work leading up to and including a successful test of the thermographic-phosphor method in an operating turbine engine. 6 refs., 7 figs.

Noel, B.W.; Borella, H.M. (Los Alamos National Lab., NM (USA)); Lewis, W.; Turley, W.D. (EG and G Energy Measurements, Inc., Goleta, CA (USA)); Beshears, D.L.; Capps, G.J.; Cates, M.R.; Muhs, J.D.; Tobin, K.W. (Oak Ridge National Lab., TN (USA))

1989-01-01T23:59:59.000Z

71

DIRECT FUEL CELL/TURBINE POWER PLANT  

DOE Green Energy (OSTI)

In this reporting period, a milestone was achieved by commencement of testing and operation of the sub-scale hybrid direct fuel cell/turbine (DFC/T{reg_sign}) power plant. The operation was initiated subsequent to the completion of the construction of the balance-of-plant (BOP) and implementation of process and control tests of the BOP for the subscale DFC/T hybrid system. The construction efforts consisted of finishing the power plant insulation and completion of the plant instrumentation including the wiring and tubing required for process measurement and control. The preparation work also included the development of procedures for facility shake down, conditioning and load testing of the fuel cell, integration of the microturbine, and fuel cell/gas turbine load tests. At conclusion of the construction, the process and control (PAC) tests of BOP, including the microturbine, were initiated.

Hossein Ghezel-Ayagh

2003-05-23T23:59:59.000Z

72

Hybrid Vehicle Turbine Engine Technology Support (HVTE-TS) ceramic design manual  

SciTech Connect

This ceramic component design manual was an element of the Advanced Turbine Technology Applications Project (ATTAP). The ATTAP was intended to advance the technological readiness of the ceramic automotive gas turbine engine as a primary power plant. Of the several technologies requiring development before such an engine could become a commercial reality, structural ceramic components represented the greatest technical challenge, and was the prime focus of the program. HVTE-TS, which was created to support the Hybrid Electric Vehicle (HEV) program, continued the efforts begun in ATTAP to develop ceramic components for an automotive gas turbine engine. In HVTE-TS, the program focus was extended to make this technology applicable to the automotive gas turbine engines that form the basis of hybrid automotive propulsion systems consisting of combined batteries, electric drives, and on-board power generators as well as a primary power source. The purpose of the ceramic design manual is to document the process by which ceramic components are designed, analyzed, fabricated, assembled, and tested in a gas turbine engine. Interaction with ceramic component vendors is also emphasized. The main elements of the ceramic design manual are: an overview of design methodology; design process for the AGT-5 ceramic gasifier turbine rotor; and references. Some reference also is made to the design of turbine static structure components to show methods of attaching static hot section ceramic components to supporting metallic structures.

1997-10-01T23:59:59.000Z

73

Dynamic Models for Wind Turbines and Wind Power Plants  

DOE Green Energy (OSTI)

The primary objective of this report was to develop universal manufacturer-independent wind turbine and wind power plant models that can be shared, used, and improved without any restrictions by project developers, manufacturers, and engineers. Manufacturer-specific models of wind turbines are favored for use in wind power interconnection studies. While they are detailed and accurate, their usages are limited to the terms of the non-disclosure agreement, thus stifling model sharing. The primary objective of the work proposed is to develop universal manufacturer-independent wind power plant models that can be shared, used, and improved without any restrictions by project developers, manufacturers, and engineers. Each of these models includes representations of general turbine aerodynamics, the mechanical drive-train, and the electrical characteristics of the generator and converter, as well as the control systems typically used. To determine how realistic model performance is, the performance of one of the models (doubly-fed induction generator model) has been validated using real-world wind power plant data. This work also documents selected applications of these models.

Singh, M.; Santoso, S.

2011-10-01T23:59:59.000Z

74

Combustion gas turbine/steam generator plant  

SciTech Connect

A fired steam generator is described that is interconnected with a gas turbine/steam generator plant having at least one gas turbine group followed by an exhaust-gas steam generator. The exhaust-gas steam generator has a preheater and an evaporator. The inlet of the preheater is connected to a feedwater distribution line which also feeds a preheater in the fired steam generator. The outlet of the preheater is connected to the evaporator of the fired steam generator. The evaporator outlet of the exhaust-gas steam generator is connected to the input of a superheater in the fired steam generator.

Aguet, E.

1975-11-18T23:59:59.000Z

75

Gas turbine-steam power plant  

SciTech Connect

The pressure vessel of the gas turbine-steam power plant is provided with a recuperator and a heat exchanger in order to reduce the temperature of the hot flue gas before separating out gas-entrained particles. The dust separator is connected to the recuperator on a secondary side so that the hot gas can be reheated for delivery to the gas turbine. By cooling the flue gas before entering the separator, use can be made of electrostatic dust filters or cloth filters.

Aguet, E.

1984-07-31T23:59:59.000Z

76

Direct FuelCell/Turbine Power Plant  

SciTech Connect

This report includes the progress in development of Direct Fuel Cell/Turbine. (DFC/T.) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. FCE successfully completed testing of the pre-alpha sub-MW DFC/T power plant. This power plant was constructed by integration of a 250kW fuel cell stack and a microturbine. Following these proof-of-concept tests, a stand-alone test of the microturbine verified the turbine power output expectations at an elevated (representative of the packaged unit condition) turbine inlet temperature. Preliminary design of the packaged sub-MW alpha DFC/T unit has been completed and procurement activity has been initiated. The preliminary design of a 40 MW power plant including the key equipment layout and the site plan was completed. A preliminary cost estimate for the 40 MW DFC/T plant has also been prepared. The tests of the cascaded fuel cell concept for achieving high fuel utilizations were completed. The tests demonstrated that the concept results in higher power plant efficiency. Alternate stack flow geometries for increased power output/fuel utilization capabilities are also being evaluated.

Hossein Ghezel-Ayagh

2004-11-19T23:59:59.000Z

77

Direct FuelCell/Turbine Power Plant  

DOE Green Energy (OSTI)

This report includes the progress in development of Direct Fuel Cell/Turbine. (DFC/T.) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. FCE successfully completed testing of the pre-alpha sub-MW DFC/T power plant. This power plant was constructed by integration of a 250kW fuel cell stack and a microturbine. Following these proof-of-concept tests, a stand-alone test of the microturbine verified the turbine power output expectations at an elevated (representative of the packaged unit condition) turbine inlet temperature. Preliminary design of the packaged sub-MW alpha DFC/T unit has been completed and procurement activity has been initiated. The preliminary design of a 40 MW power plant including the key equipment layout and the site plan was completed. A preliminary cost estimate for the 40 MW DFC/T plant has also been prepared. The tests of the cascaded fuel cell concept for achieving high fuel utilizations were completed. The tests demonstrated that the concept results in higher power plant efficiency. Alternate stack flow geometries for increased power output/fuel utilization capabilities are also being evaluated.

Hossein Ghezel-Ayagh

2004-11-19T23:59:59.000Z

78

"Fish Friendly" Hydropower Turbine Development and Deployment: Alden Turbine Preliminary Engineering and Model Testing  

Science Conference Proceedings (OSTI)

This report presents the results of a collaborative research project funded by the Electric Power Research Institute (EPRI), the U.S. Department of Energy (DOE), and hydropower industry partners with the objective of completing the remaining developmental engineering required for a "fish-friendly" hydropower turbine called the Alden turbine. Earlier engineering and research that was started in 1995 and completed in 2008 established a viable conceptual design. Additional engineering completed in 2009 and ...

2011-10-07T23:59:59.000Z

79

Combined plant having steam turbine and gas turbine connected by single shaft  

SciTech Connect

A combined plant including a gas turbine, a steam turbine and a waste heat recovery boiler using exhaust gases of the gas turbine as a heat source for producing steam serving as a drive source of the steam turbine further includes an ancillary steam source separate from and independent of the waste heat recovery boiler. At the time of startup of the plant, steam from the ancillary steam source is introduced into the steam turbine until the conditions for feeding air to the waste heat recovery boiler are set, to thereby avoid overheating of the steam turbine due to a windage loss.

Okabe, A.; Kashiwahara, K.; Urushidani, H.

1985-05-28T23:59:59.000Z

80

Prime Movers of Globalization: The History and Impact of Diesel Engines and Gas Turbines  

E-Print Network (OSTI)

of Diesel Engines and Gas Turbines By Vaclav Smil Reviewedof Diesel Engines and Gas Turbines. Cambridge, MA: The MITin the 1890s and the gas turbine invented by Frank Whittle

Anderson, Byron P.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

On optimization of sensor selection for aircraft gas turbine engines Ramgopal Mushini  

E-Print Network (OSTI)

On optimization of sensor selection for aircraft gas turbine engines Ramgopal Mushini Cleveland sets for the problem of aircraft gas turbine engine health parameter estimation. The performance metric for generating an optimal sensor set [3]. 3. Aircraft gas turbine engines An aircraft gas turbine engine

Simon, Dan

82

DIRECT FUEL CELL/TURBINE POWER PLANT  

SciTech Connect

This report includes the progress in development of Direct FuelCell/Turbine{reg_sign} (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. The operation of sub-MW hybrid Direct FuelCell/Turbine power plant test facility with a Capstone C60 microturbine was initiated in March 2003. The inclusion of the C60 microturbine extended the range of operation of the hybrid power plant to higher current densities (higher power) than achieved in previous tests using a 30kW microturbine. The design of multi-MW DFC/T hybrid systems, approaching 75% efficiency on natural gas, was initiated. A new concept was developed based on clusters of One-MW fuel cell modules as the building blocks. System analyses were performed, including systems for near-term deployment and power plants with long-term ultra high efficiency objectives. Preliminary assessment of the fuel cell cluster concept, including power plant layout for a 14MW power plant, was performed.

Hossein Ghezel-Ayagh

2004-11-01T23:59:59.000Z

83

DIRECT FUEL CELL/TURBINE POWER PLANT  

DOE Green Energy (OSTI)

This report includes the progress in development of Direct FuelCell/Turbine{reg_sign} (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. The operation of sub-MW hybrid Direct FuelCell/Turbine power plant test facility with a Capstone C60 microturbine was initiated in March 2003. The inclusion of the C60 microturbine extended the range of operation of the hybrid power plant to higher current densities (higher power) than achieved in previous tests using a 30kW microturbine. The design of multi-MW DFC/T hybrid systems, approaching 75% efficiency on natural gas, was initiated. A new concept was developed based on clusters of One-MW fuel cell modules as the building blocks. System analyses were performed, including systems for near-term deployment and power plants with long-term ultra high efficiency objectives. Preliminary assessment of the fuel cell cluster concept, including power plant layout for a 14MW power plant, was performed.

Hossein Ghezel-Ayagh

2004-11-01T23:59:59.000Z

84

Gas turbine effects on integrated-gasification-combined-cycle power plant operations  

SciTech Connect

This study used detailed thermodynamic modeling procedures to assess the influence of different gas turbine characteristics and steam cycle conditions on the design and off-design performance of integrated gasification-combined-cycle (IGCC) power plants. IGCC plant simulation models for a base case plant with Texaco gasifiers and both radiant and convective syngas coolers were developed, and three different types of gas turbines were evaluated as well as non-reheat and reheat steam systems. Results indicated that improving the gas turbine heat rate significantly improves the heat rate of the IGCC power plant. In addition results indicated that using a reheat steam system with current gas turbines improves IGCC performance, though as gas turbine efficiency increases, the impact of using a reheat steam system decreases. Increasing gas turbine temperatures from 1985{degree}F to 2500{degree}F was also found to have the potential to reduce overall IGCC system heat rates by approximately 700 BTU/kWh. The methodologies and models developed for this work are extremely useful tools for investigating the impact of specific gas turbine and steam cycle conditions on the overall performance of IGCC power plants. Moreover, they can assist utilities during the preliminary engineering phase of an IGCC project in evaluating the cost effectiveness of using specific gas turbines and steam cycles in the overall plant design. 45 refs., 20 figs., 10 tabs.

Eustis, F.H. (Stanford Univ., CA (USA). High Temperature Gasdynamics Lab.)

1990-03-01T23:59:59.000Z

85

DIRECT FUEL/CELL/TURBINE POWER PLANT  

SciTech Connect

This report includes the progress in development of Direct FuelCell/Turbine{reg_sign} (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. FCE successfully completed testing of the pre-alpha DFC/T hybrid power plant. This power plant was constructed by integration of a 250kW fuel cell stack and a microturbine. The tests of the cascaded fuel cell concept for achieving high fuel utilizations were completed. The tests demonstrated that the concept results in higher power plant efficiency. Also, the preliminary design of a 40 MW power plant including the key equipment layout and the site plan was completed.

Hossein Ghezel-Ayagh

2004-05-01T23:59:59.000Z

86

DIRECT FUEL/CELL/TURBINE POWER PLANT  

DOE Green Energy (OSTI)

This report includes the progress in development of Direct FuelCell/Turbine{reg_sign} (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. FCE successfully completed testing of the pre-alpha DFC/T hybrid power plant. This power plant was constructed by integration of a 250kW fuel cell stack and a microturbine. The tests of the cascaded fuel cell concept for achieving high fuel utilizations were completed. The tests demonstrated that the concept results in higher power plant efficiency. Also, the preliminary design of a 40 MW power plant including the key equipment layout and the site plan was completed.

Hossein Ghezel-Ayagh

2004-05-01T23:59:59.000Z

87

DIRECT FUEL CELL/TURBINE POWER PLANT  

DOE Green Energy (OSTI)

Project activities were focused on the design and construction the sub-scale hybrid Direct Fuel Cell/turbine (DFC/T{reg_sign}) power plant and modification of a Capstone Simple Cycle Model 330 microturbine. The power plant design work included preparation of system flow sheet and performing computer simulations based on conservation of mass and energy. The results of the simulation analyses were utilized to prepare data sheets and specifications for balance-of-plant equipment. Process flow diagram (PFD) and piping and instrumentation diagrams (P&ID) were also completed. The steady state simulation results were used to develop design information for modifying the control functions, and for sizing the heat exchangers required for recuperating the waste heat from the power plant. Line and valve sizes for the interconnecting pipes between the microturbine and the heat recuperators were also identified.

Hossein Ghezel-Ayagh

2003-05-22T23:59:59.000Z

88

External combustor for gas turbine engine  

DOE Patents (OSTI)

An external combustor for a gas turbine engine has a cyclonic combustion chamber into which combustible gas with entrained solids is introduced through an inlet port in a primary spiral swirl. A metal draft sleeve for conducting a hot gas discharge stream from the cyclonic combustion chamber is mounted on a circular end wall of the latter adjacent the combustible gas inlet. The draft sleeve is mounted concentrically in a cylindrical passage and cooperates with the passage in defining an annulus around the draft sleeve which is open to the cyclonic combustion chamber and which is connected to a source of secondary air. Secondary air issues from the annulus into the cyclonic combustion chamber at a velocity of three to five times the velocity of the combustible gas at the inlet port. The secondary air defines a hollow cylindrical extension of the draft sleeve and persists in the cyclonic combustion chamber a distance of about three to five times the diameter of the draft sleeve. The hollow cylindrical extension shields the drive sleeve from the inlet port to prevent discharge of combustible gas through the draft sleeve.

Santanam, Chandran B. (Indianapolis, IN); Thomas, William H. (Indianapolis, IN); DeJulio, Emil R. (Columbus, IN)

1991-01-01T23:59:59.000Z

89

A Wood-Fired Gas Turbine Plant  

E-Print Network (OSTI)

This paper covers the research and development of a wood-fired gas turbine unit that is used for generating electricity. The system uses one large cyclonic combustor and a cyclone cleaning system in series to provide hot gases to drive an Allison T-56 aircraft engine (the industrial version is the 501-k). A Westinghouse 3,000-kW generator is used on the prototype facility with a Philadelphia gear system reducing the 14,000-rpm turbine output speed to the 3,600-rpm generator operating speed. Fuel is fed into the combustor by a rotary valve system. The swirling effect of the cyclone combustor ensures that residence time is adequate to completely burn all solid particles in the combustor ahead of the cyclone filter. Burning of particles on the metal walls of the cyclone filter could cause overheating and deterioration of the walls. This wood-fired gas turbine unit could provide a low cost source of power for areas where conventional methods are now prohibitive and provide a means for recovering energy from a source that now poses disposal problems.

Powell, S. H.; Hamrick, J. T.

1986-06-01T23:59:59.000Z

90

Experimental study of rotordynamic coefficients of squeeze film dampers of an aircraft gas turbine engine.  

E-Print Network (OSTI)

??The rotordynamic coefficients of squeeze film dampers of an aircraft gas turbine engine were investigated experimentally. Rotordynamic model(XLROTOR) for Gas Generator and Power Turbine were… (more)

Na, Uhn Joo

2012-01-01T23:59:59.000Z

91

Inspection system for a turbine blade region of a turbine engine  

DOE Patents (OSTI)

An inspection system formed at least from a viewing tube for inspecting aspects of a turbine engine during operation of the turbine engine. An outer housing of the viewing tube may be positioned within a turbine engine using at least one bearing configured to fit into an indentation of a support housing to form a ball and socket joint enabling the viewing tube to move during operation as a result of vibrations and other movements. The viewing tube may also include one or more lenses positioned within the viewing tube for viewing the turbine components. The lenses may be kept free of contamination by maintaining a higher pressure in the viewing tube than a pressure outside of the viewing tube and enabling gases to pass through an aperture in a cap at a viewing end of the viewing tube.

Smed, Jan P. (Winter Springs, FL); Lemieux, Dennis H. (Casselberry, FL); Williams, James P. (Orlando, FL)

2007-06-19T23:59:59.000Z

92

Method for detecting gas turbine engine flashback  

SciTech Connect

A method for monitoring and controlling a gas turbine, comprises predicting frequencies of combustion dynamics in a combustor using operating conditions of a gas turbine, receiving a signal from a sensor that is indicative of combustion dynamics in the combustor, and detecting a flashback if a frequency of the received signal does not correspond to the predicted frequencies.

Singh, Kapil Kumar; Varatharajan, Balachandar; Kraemer, Gilbert Otto; Yilmaz, Ertan; Lacy, Benjamin Paul

2012-09-04T23:59:59.000Z

93

Solid fuel combustion system for gas turbine engine  

DOE Patents (OSTI)

A solid fuel, pressurized fluidized bed combustion system for a gas turbine engine includes a carbonizer outside of the engine for gasifying coal to a low Btu fuel gas in a first fraction of compressor discharge, a pressurized fluidized bed outside of the engine for combusting the char residue from the carbonizer in a second fraction of compressor discharge to produce low temperature vitiated air, and a fuel-rich, fuel-lean staged topping combustor inside the engine in a compressed air plenum thereof. Diversion of less than 100% of compressor discharge outside the engine minimizes the expense of fabricating and maintaining conduits for transferring high pressure and high temperature gas and incorporation of the topping combustor in the compressed air plenum of the engine minimizes the expense of modifying otherwise conventional gas turbine engines for solid fuel, pressurized fluidized bed combustion.

Wilkes, Colin (Lebanon, IN); Mongia, Hukam C. (Carmel, IN)

1993-01-01T23:59:59.000Z

94

Serial cooling of a combustor for a gas turbine engine  

DOE Patents (OSTI)

A combustor for a gas turbine engine uses compressed air to cool a combustor liner and uses at least a portion of the same compressed air for combustion air. A flow diverting mechanism regulates compressed air flow entering a combustion air plenum feeding combustion air to a plurality of fuel nozzles. The flow diverting mechanism adjusts combustion air according to engine loading.

Abreu, Mario E. (Poway, CA); Kielczyk, Janusz J. (Escondido, CA)

2001-01-01T23:59:59.000Z

95

DIRECT FUELCELL/TURBINE POWER PLANT  

DOE Green Energy (OSTI)

This report summarizes the progress made in development of Direct FuelCell/Turbine{reg_sign} (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. Detailed design of the packaged sub-MW alpha DFC/T unit has been completed for mechanical and piping layouts and for structural drawings. Procurement activities continued with delivery of major equipment items. Fabrication of the packaged sub-MW alpha DFC/T unit has been initiated. Details of the process control philosophy were defined and control software programming was initiated.

Hossein Shezel-Ayagh

2005-05-01T23:59:59.000Z

96

DIRECT FUELCELL/TURBINE POWER PLANT  

SciTech Connect

This report summarizes the progress made in development of Direct FuelCell/Turbine{reg_sign} (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. Detailed design of the packaged sub-MW alpha DFC/T unit has been completed for mechanical and piping layouts and for structural drawings. Procurement activities continued with delivery of major equipment items. Fabrication of the packaged sub-MW alpha DFC/T unit has been initiated. Details of the process control philosophy were defined and control software programming was initiated.

Hossein Shezel-Ayagh

2005-05-01T23:59:59.000Z

97

Topping Turbines: Adding New Life to Older Plants  

E-Print Network (OSTI)

An existing power plant can be repowered at a modest investment cost through a topping turbine installation. Essentially, this consists of replacing the existing old, low pressure boilers with new, high pressure boilers and adding a new, high pressure, non-condensing turbine (topping turbine) . The high pressure steam generated in the new boilers is supplied to the throttle of the high pressure turbine and exhausted at the pressure required by the existing, old, low pressure, condensing turbines. The exhaust from the topping turbine is then supplied to the throttle of the existing turbines. The additional capacity results from the kilowatts generated in the topping turbine while reducing the steam pressure from the throttle to the exhaust conditions. Also, because this steam is not condensed, there is no loss of the latent heat of condensation of the steam to the condenser circulating water. Consequently, the thermal efficiency of the cycle is considerably enhanced.

Cadrecha, M.

1984-01-01T23:59:59.000Z

98

Multivariable model predictive control for a gas turbine power plant  

Science Conference Proceedings (OSTI)

In this brief, constrained multi variable model predictive control (MPC) strategy is investigated for a GE9001E gas turbine power plant. So the rotor speed and exhaust gas temperature are controlled manipulating the fuel command and compressor inlet ... Keywords: ARX, gas turbine, identification, modeling, multivariable control, power plant, predictive control

Hadi Ghorbani; Ali Ghaffari; Mehdi Rahnama

2008-05-01T23:59:59.000Z

99

Micro-combustor for gas turbine engine  

SciTech Connect

An improved gas turbine combustor (20) including a basket (26) and a multiplicity of micro openings (29) arrayed across an inlet wall (27) for passage of a fuel/air mixture for ignition within the combustor. The openings preferably have a diameter on the order of the quenching diameter; i.e. the port diameter for which the flame is self-extinguishing, which is a function of the fuel mixture, temperature and pressure. The basket may have a curved rectangular shape that approximates the shape of the curved rectangular shape of the intake manifolds of the turbine.

Martin, Scott M. (Oviedo, FL)

2010-11-30T23:59:59.000Z

100

Advanced turbine design for coal-fueled engines  

DOE Green Energy (OSTI)

The objective of this task is to perform a technical assessment of turbine blading for advanced second generation PFBC conditions, identify specific problems/issues, and recommend an approach for solving any problems identified. A literature search was conducted, problems associated with hot corrosion defined and limited experiments performed. Sulfidation corrosion occurs in industrial, marine and aircraft gas turbine engines and is due to the presence of condensed alkali (sodium) sulfates. The principle source of the alkali in industrial, marine and aircraft gas turbine engines is sea salt crystals. The principle source of the sulfur is not the liquid fuels, but the same ocean born crystals. Moreover deposition of the corrosive salt occurs primarily by a non-equilibrium process. Sodium will be present in the cleaned combusted gases that enter the PFBC turbine. Although equilibrium condensation is not favored, deposition via impaction is probable. Marine gas turbines operate in sodium chloride rich environments without experiencing the accelerated attack noted in coal fired boilers where condensed chlorides contact metallic surfaces. The sulfates of calcium and magnesium are the products of the reactions used to control sulfur. Based upon industrial gas turbine experience and laboratory tests, calcium and magnesium sulfates are, at temperatures up to 1500[degrees]F (815[degrees]C), relatively innocuous salts. In this study it is found that at 1650[degrees]F (900[degrees]C) and above, calcium sulfate becomes an aggressive corrodent.

Bornstein, N.S.

1992-07-17T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Summary of Investigations of the Use of Modified Turbine Inlet Conditions in a Binary Power Plant  

SciTech Connect

Investigators at the Idaho National Engineering and Environmental Laboratory (INEEL) are developing technologies that will enhance the feasibility of generating electrical power from a hydrothermal resource. One of the concepts investigated is the use of modified inlet conditions in geothermal binary power plant turbines to increase the power generation. An inlet condition of interest allows the expanding vapor to enter the two-phase region, a mode of operation typically avoided because of concern that condensate would form and damage the turbine, degrading performance. INEEL investigators postulated that initially a supersaturated vapor would be supported, and that no turbine damage would occur. This paper summarizes the investigation of these expansions that began with testing of their condensation behavior, and culminated with the incorporation of these expansions into the operation of several commercial binary plant turbines.

Mines, Gregory Lee

2000-09-01T23:59:59.000Z

102

Summary of investigations of the use of modified turbine inlet conditions in a binary power plant  

DOE Green Energy (OSTI)

Investigators at the Idaho National Engineering and Environmental Laboratory (INEEL) are developing technologies that will enhance the feasibility of generating electrical power from a hydrothermal resource. One of the concepts investigated is the use of modified inlet conditions in geothermal binary power plant turbines to increase the power generation. An inlet condition of interest allows the expanding vapor to enter the two-phase region, a mode of operation typically avoided because of concern that condensate would form and damage the turbine, degrading performance. INEEL investigators postulated that initially a supersaturated vapor would be supported, and that no turbine damage would occur. This paper summarizes the investigation of these expansions that began with testing of their condensation behavior, and culminated with the incorporation of these expansions into the operation of several commercial binary plant turbines.

G. L. Mines

2000-09-24T23:59:59.000Z

103

An Evaluation of Gas Turbines for APFBC Power Plants  

NLE Websites -- All DOE Office Websites (Extended Search)

EVALUATION OF GAS TURBINES FOR APFBC POWER PLANTS EVALUATION OF GAS TURBINES FOR APFBC POWER PLANTS Donald L. Bonk U.S. DOE National Energy Technology Laboratory Morgantown, West Virginia eMail: dbonk@netl.doe.gov phone: (304) 285-4889 Richard E. Weinstein, P.E. Parsons Infrastructure & Technology Group Inc. Reading, Pennsylvania eMail: richard.e.weinstein@parsons.com phone: (610) 855-2699 Abstract This paper describes a concept screening evaluation of gas turbines from several manufacturers that assessed the merits of their respective gas turbines for advanced circulating pressurized fluidized bed combustion combined cycle (APFBC) applications. The following gas turbines were evaluated for the modifications expected for APFBC service: 2 x Rolls-Royce Industrial Trent aeroderivative gas turbine configurations; a 3 x Pratt & Whitney Turbo Power FT8 Twin-

104

Fault detection and isolation in aircraft gas turbine engines. Part 1: underlying concept  

E-Print Network (OSTI)

307 Fault detection and isolation in aircraft gas turbine engines. Part 1: underlying concept: aircraft propulsion, gas turbine engines, fault detection and isolation, statistical pattern recognition 1 INTRODUCTION Performance and reliability of aircraft gas turbine engines gradually deteriorate over the service

Ray, Asok

105

Isogeometric Simulation of Turbine Blades for Aircraft Engines David Gromann1  

E-Print Network (OSTI)

Isogeometric Simulation of Turbine Blades for Aircraft Engines David Gro�mann1 , Bert Jüttler2, in the challenging field of aircraft engines. We study the deformation of turbine blades under the assumption, manufacturing and repairing turbine engines for aircrafts. A challenging task in this field is the efficient

Jüttler, Bert

106

Flow Integrating Section for a Gas Turbine Engine in Which Turbine Blades are Cooled by Full Compressor Flow  

SciTech Connect

Routing of full compressor flow through hollow turbine blades achieves unusually effective blade cooling and allows a significant increase in turbine inlet gas temperature and, hence, engine efficiency. The invention, ''flow integrating section'' alleviates the turbine dissipation of kinetic energy of air jets leaving the hollow blades as they enter the compressor diffuser.

Steward, W. Gene

1999-11-14T23:59:59.000Z

107

Flow Integrating Section for a Gas Turbine Engine in Which Turbine Blades are Cooled by Full Compressor Flow  

DOE Green Energy (OSTI)

Routing of full compressor flow through hollow turbine blades achieves unusually effective blade cooling and allows a significant increase in turbine inlet gas temperature and, hence, engine efficiency. The invention, ''flow integrating section'' alleviates the turbine dissipation of kinetic energy of air jets leaving the hollow blades as they enter the compressor diffuser.

Steward, W. Gene

1999-11-14T23:59:59.000Z

108

Direct FuelCell/Turbine Power Plant  

DOE Green Energy (OSTI)

This report summarizes the progress made in development of Direct FuelCell/Turbine (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T system employs an indirectly heated Turbine Generator to supplement fuel cell generated power. The concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, minimal emissions, reduced carbon dioxide release to the environment, simplicity in design, direct reforming internal to the fuel cell, and potential cost competitiveness with existing combined cycle power plants. Proof-of-concept tests using a sub-MW-class DFC/T power plant at FuelCell Energy's (FCE) Danbury facility were conducted to validate the feasibility of the concept and to measure its potential for electric power production. A 400 kW-class power plant test facility was designed and retrofitted to conduct the tests. The initial series of tests involved integration of a full-size (250 kW) Direct FuelCell stack with a 30 kW Capstone microturbine. The operational aspects of the hybrid system in relation to the integration of the microturbine with the fuel cell, process flow and thermal balances, and control strategies for power cycling of the system, were investigated. A subsequent series of tests included operation of the sub-MW Direct FuelCell/Turbine power plant with a Capstone C60 microturbine. The C60 microturbine extended the range of operation of the hybrid power plant to higher current densities (higher power) than achieved in initial tests using the 30kW microturbine. The proof-of-concept test results confirmed the stability and controllability of operating a fullsize (250 kW) fuel cell stack in combination with a microturbine. Thermal management of the system was confirmed and power plant operation, using the microturbine as the only source of fresh air supply to the system, was demonstrated. System analyses of 40 MW DFC/T hybrid systems, approaching 75% efficiency on natural gas, were carried out using CHEMCAD simulation software. The analyses included systems for near-term and long-term deployment. A new concept was developed that was based on clusters of one-MW fuel cell modules as the building blocks. The preliminary design of a 40 MW power plant, including the key equipment layout and the site plan, was completed. The process information and operational data from the proof-of-concept tests were used in the design of 40 MW high efficiency DFC/T power plants. A preliminary cost estimate for the 40 MW DFC/T plant was also prepared. Pilot-scale tests of the cascaded fuel cell concept for achieving high fuel utilizations were conducted. The tests demonstrated that the concept has the potential to offer higher power plant efficiency. Alternate stack flow geometries for increased power output and fuel utilization capabilities were also evaluated. Detailed design of the packaged sub-MW DFC/T Alpha Unit was completed, including equipment and piping layouts, instrumentation, electrical, and structural drawings. The lessons learned from the proof-of-concept tests were incorporated in the design of the Alpha Unit. The sub-MW packaged unit was fabricated, including integration of the Direct FuelCell{reg_sign} (DFC{reg_sign}) stack module with the mechanical balance-of-plant and electrical balance-of-plant. Factory acceptance tests of the Alpha DFC/T power plant were conducted at Danbury, CT. The Alpha Unit achieved an unsurpassed electrical efficiency of 58% (LHV natural gas) during the factory tests. The resulting high efficiency in conversion of chemical energy to electricity far exceeded any sub-MW class power generation equipment presently in the market. After successful completion of the factory tests, the unit was shipped to the Billings Clinic in Billings, MT, for field demonstration tests. The DFC/T unit accomplished a major achievement by successfully completing 8000 hours of operation at the Billings site. The Alpha sub-MW DF

Hossein Ghezel-Ayagh

2008-09-30T23:59:59.000Z

109

Engineering and Economic Evaluation of Utility-Scale Wind Power Plants  

Science Conference Proceedings (OSTI)

This report addresses the status of wind turbine and related technology for both onshore and offshore applications and presents the results of an engineering and economic evaluation of the performance and cost of onshore and offshore wind power plants.

2010-05-20T23:59:59.000Z

110

Gas Turbine Plant Modeling for Dynamic Simulation.  

E-Print Network (OSTI)

?? Gas turbines have become effective in industrial applications for electric and thermal energy production partly due to their quick response to load variations. A… (more)

Endale Turie, Samson

2012-01-01T23:59:59.000Z

111

Turbine Overspeed Trip Modernization  

Science Conference Proceedings (OSTI)

This report provides guidance for power plant engineers contemplating modernization of their main turbine overspeed trip systems. When a large power plant turbine suddenly loses its output shaft loading due to a generator or power grid problem, the steam flow driving the turbine must be cut off very quickly to prevent an overspeed event. The overspeed trip system protects personnel and plant systems by preventing missiles that can result when turbines disintegrate at higher than normal rotational speeds....

2006-12-04T23:59:59.000Z

112

HTGR power plant turbine-generator load control system  

SciTech Connect

A control system is disclosed for a high temperature gas cooled reactor power plant, wherein a steam source derives heat from the reactor coolant gas to generate superheated and reheated steam in respective superheater and reheater sections that are included in the steam source. Each of dual turbine-generators includes a high pressure turbine to pass superheated steam and an associated intermediate low pressure turbine to pass reheated steam. A first admission valve means is connected to govern a flow of superheated steam through a high pressure turbine, and a second admission valve means is connected to govern a flow of reheated steam through an intermediate-low pressure turbine. A bypass line and bypass valve means connected therein are connected across a second admission valve means and its intermediate-low pressure turbine. The second admission valve means is positioned to govern the steam flow through the intermediate-low pressure turbine in accordance with the desired power output of the turbine-generator. In response to the steam flow through the intermediate-low pressure turbine, the bypass valve means is positioned to govern the steam flow through the bypass line to maintain a desired minimum flow through the reheater section at times when the steam flow through the intermediate-low pressure turbine is less than such minimum. The power output of the high pressure turbine is controlled by positioning the first admission valve means in predetermined proportionality with the desired power output of the turbine-generator, thereby improving the accuracy of control of the power output of the high pressure turbine at low load levels.

Braytenbah, A.S.; Jaegtnes, K.O.

1976-12-28T23:59:59.000Z

113

Direct coal-fired gas turbines for combined cycle plants  

SciTech Connect

The combustion/emissions control island of the CFTCC plant produces cleaned coal combustion gases for expansion in the gas turbine. The gases are cleaned to protect the turbine from flow-path degeneration due to coal contaminants and to reduce environmental emissions to comparable or lower levels than alternate clean coal power plant tedmologies. An advantage of the CFTCC system over other clean coal technologies using gas turbines results from the CFTCC system having been designed as an adaptation to coal of a natural gas-fired combined cycle plant. Gas turbines are built for compactness and simplicity. The RQL combustor is designed using gas turbine combustion technology rather than process plant reactor technology used in other pressurized coal systems. The result is simpler and more compact combustion equipment than for alternate technologies. The natural effect is lower cost and improved reliability. In addition to new power generation plants, CFTCC technology will provide relatively compact and gas turbine compatible coal combustion/emissions control islands that can adapt existing natural gas-fired combined cycle plants to coal when gas prices rise to the point where conversion is economically attractive. Because of the simplicity, compactness, and compatibility of the RQL combustion/emission control island compared to other coal technologies, it could be a primary candidate for such conversions.

Rothrock, J.; Wenglarz, R.; Hart, P.; Mongia, H.

1993-11-01T23:59:59.000Z

114

Traction drive automatic transmission for gas turbine engine driveline  

SciTech Connect

A transaxle driveline for a wheeled vehicle has a high speed turbine engine and a torque splitting gearset that includes a traction drive unit and a torque converter on a common axis transversely arranged with respect to the longitudinal centerline of the vehicle. The drive wheels of the vehicle are mounted on a shaft parallel to the turbine shaft and carry a final drive gearset for driving the axle shafts. A second embodiment of the final drive gearing produces an overdrive ratio between the output of the first gearset and the axle shafts. A continuously variable range of speed ratios is produced by varying the position of the drive rollers of the traction unit. After starting the vehicle from rest, the transmission is set for operation in the high speed range by engaging a first lockup clutch that joins the torque converter impeller to the turbine for operation as a hydraulic coupling.

Carriere, Donald L. (Livonia, MI)

1984-01-01T23:59:59.000Z

115

Biennial Assessment of the Fifth Power Plan Gas Turbine Power Plant Planning Assumptions  

E-Print Network (OSTI)

Biennial Assessment of the Fifth Power Plan Gas Turbine Power Plant Planning Assumptions October 17, 2006 Simple- and combined-cycle gas turbine power plants fuelled by natural gas are among the bulk-emission and efficient gas turbine technology made combined-cycle gas turbine power plants the "resource of choice

116

DEVELOPMENT OF A HYDROGEN COMBUSTOR FOR A MICROFABRICATED GAS TURBINE ENGINE  

E-Print Network (OSTI)

DEVELOPMENT OF A HYDROGEN COMBUSTOR FOR A MICROFABRICATED GAS TURBINE ENGINE A. Mehra, I. A. Waitz Gas Turbine Laboratory, Department of Aeronautics and Astronautics Massachusetts Institute, a program is underway to fabricate a gas turbine engine capable of producing 50W of electrical power

Waitz, Ian A.

117

Heterogeneous reactions in aircraft gas turbine engines R. C. Brown and R. C. Miake-Lye  

E-Print Network (OSTI)

Heterogeneous reactions in aircraft gas turbine engines R. C. Brown and R. C. Miake-Lye Aerodyne to estimate the maximum effect of heterogeneous reactions on trace species evolution in aircraft gas turbines species emissions from gas turbine engines are of interest because of environmental and human health

Waitz, Ian A.

118

Gas turbines engines and transmissions for bus demonstration programs  

SciTech Connect

The technical status report fulfills the contractual requirements of Contract EM-78-C-02-4867. The report covers the period from 31 January 1979 through 30 April 1979 and is a summary of DDA activities for the effort performed on the procurement of eleven (11) Allison GT 404-4 gas turbine engines and five (5) HT740CT and siz (6) V730CT Allison automatic transmissions and the required associated software. (TFD)

Nigro, D.N.

1979-04-01T23:59:59.000Z

119

Anti-polluting power plant using compressors and gas turbines  

SciTech Connect

An electric power generating plant includes at least two compressors having matched operating characteristics, alternators and turbines and boilers having combustion chambers connected to the turbines. The compressors, alternators and turbines are operatively interconnected such that during no power demand periods the compressors are driven in a series arrangement by the alternators, functioning as electric motors, to store a supply of pressurized air in an air storage tank, and during normal and peak power demand periods the turbines, supplied by the combustion chambers of the boilers, drive the compressors, functioning in parallel relationship, which feed respective ones of the boilers with enriched air and a gas recycled after expansion by one of the turbines. During the normal and peak power demand periods pressurized air previously stored in the air storage tank by the compressors is fed to the combustion chamber of one of the boilers.

Rigollot, G.A.

1977-09-20T23:59:59.000Z

120

State-of-the-art gas turbine and steam turbine power plant  

SciTech Connect

A state-of-the-art power plant in which the heat from solid or low quality fuels is utilized to heat indirectly a motive stream composition of a mixture of steam and gases to drive a gas turbine. The thermal energy from the burning of the solid or low quality fuels is also utilized to generate steam which powers a steam turbine. Excess steam may be generated to be utilized as process steam.

Willyoung, D. M.; Anand, A. K.

1985-03-12T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Melt Infiltrated Ceramic Composites (Hipercomp) for Gas Turbine Engine Applications  

DOE Green Energy (OSTI)

This report covers work performed under the Continuous Fiber Ceramic Composites (CFCC) program by GE Global Research and its partners from 1994 through 2005. The processing of prepreg-derived, melt infiltrated (MI) composite systems based on monofilament and multifilament tow SiC fibers is described. Extensive mechanical and environmental exposure characterizations were performed on these systems, as well as on competing Ceramic Matrix Composite (CMC) systems. Although current monofilament SiC fibers have inherent oxidative stability limitations due to their carbon surface coatings, the MI CMC system based on multifilament tow (Hi-Nicalon ) proved to have excellent mechanical, thermal and time-dependent properties. The materials database generated from the material testing was used to design turbine hot gas path components, namely the shroud and combustor liner, utilizing the CMC materials. The feasibility of using such MI CMC materials in gas turbine engines was demonstrated via combustion rig testing of turbine shrouds and combustor liners, and through field engine tests of shrouds in a 2MW engine for >1000 hours. A unique combustion test facility was also developed that allowed coupons of the CMC materials to be exposed to high-pressure, high-velocity combustion gas environments for times up to {approx}4000 hours.

Gregory Corman; Krishan Luthra

2005-09-30T23:59:59.000Z

122

Fuel burner and combustor assembly for a gas turbine engine  

DOE Patents (OSTI)

A fuel burner and combustor assembly for a gas turbine engine has a housing within the casing of the gas turbine engine which housing defines a combustion chamber and at least one fuel burner secured to one end of the housing and extending into the combustion chamber. The other end of the fuel burner is arranged to slidably engage a fuel inlet connector extending radially inwardly from the engine casing so that fuel is supplied, from a source thereof, to the fuel burner. The fuel inlet connector and fuel burner coact to anchor the housing against axial movement relative to the engine casing while allowing relative radial movement between the engine casing and the fuel burner and, at the same time, providing fuel flow to the fuel burner. For dual fuel capability, a fuel injector is provided in said fuel burner with a flexible fuel supply pipe so that the fuel injector and fuel burner form a unitary structure which moves with the fuel burner.

Leto, Anthony (Franklin Lakes, NJ)

1983-01-01T23:59:59.000Z

123

Introduction to Nuclear Plant Steam Turbine Control Systems  

Science Conference Proceedings (OSTI)

Since Nuclear Power Plants produce their power through the use of Steam Turbine Generators, any problems associated with the Turbine Control System has a direct effect on power generation. Although considerable effort has been expended in improving control system reliability, failures resulting in lost generation and high maintenance cost still plague the industry. On an individual basis, improvements have been made through maintenance techniques, modifications and upgrades. Unfortunately, this informati...

1995-03-02T23:59:59.000Z

124

Stresa, Italy, 26-28 April 2006 A SILICON-BASED MICRO GAS TURBINE ENGINE FOR POWER GENERATION  

E-Print Network (OSTI)

Stresa, Italy, 26-28 April 2006 A SILICON-BASED MICRO GAS TURBINE ENGINE FOR POWER GENERATION X. C in developing a micro power generation system based on gas turbine engine and piezoelectric converter. The micro gas turbine engine consists of a micro combustor, a turbine and a centrifugal compressor

Paris-Sud XI, Université de

125

Industrial Gas Turbine Engine Catalytic Pilot Combustor-Prototype Testing  

SciTech Connect

PCI has developed and demonstrated its Rich Catalytic Lean-burn (RCL®) technology for industrial and utility gas turbines to meet DOEâ??s goals of low single digit emissions. The technology offers stable combustion with extended turndown allowing ultra-low emissions without the cost of exhaust after-treatment and further increasing overall efficiency (avoidance of after-treatment losses). The objective of the work was to develop and demonstrate emission benefits of the catalytic technology to meet strict emissions regulations. Two different applications of the RCL® concept were demonstrated: RCL® catalytic pilot and Full RCL®. The RCL® catalytic pilot was designed to replace the existing pilot (a typical source of high NOx production) in the existing Dry Low NOx (DLN) injector, providing benefit of catalytic combustion while minimizing engine modification. This report discusses the development and single injector and engine testing of a set of T70 injectors equipped with RCL® pilots for natural gas applications. The overall (catalytic pilot plus main injector) program NOx target of less than 5 ppm (corrected to 15% oxygen) was achieved in the T70 engine for the complete set of conditions with engine CO emissions less than 10 ppm. Combustor acoustics were low (at or below 0.1 psi RMS) during testing. The RCL® catalytic pilot supported engine startup and shutdown process without major modification of existing engine controls. During high pressure testing, the catalytic pilot showed no incidence of flashback or autoignition while operating over a wide range of flame temperatures. In applications where lower NOx production is required (i.e. less than 3 ppm), in parallel, a Full RCL® combustor was developed that replaces the existing DLN injector providing potential for maximum emissions reduction. This concept was tested at industrial gas turbine conditions in a Solar Turbines, Incorporated high-pressure (17 atm.) combustion rig and in a modified Solar Turbines, Incorporated Saturn engine rig. High pressure single-injector rig and modified engine rig tests demonstrated NOx less than 2 ppm and CO less than 10 ppm over a wide flame temperature operating regime with low combustion noise (<0.15% peak-to-peak). Minimum NOx for the optimized engine retrofit Full RCL® designs was less than 1 ppm with CO emissions less than 10 ppm. Durability testing of the substrate and catalyst material was successfully demonstrated at pressure and temperature showing long term stable performance of the catalytic reactor element. Stable performance of the reactor element was achieved when subjected to durability tests (>5000 hours) at simulated engine conditions (P=15 atm, Tin=400C/750F.). Cyclic tests simulating engine trips was also demonstrated for catalyst reliability. In addition to catalyst tests, substrate oxidation testing was also performed for downselected substrate candidates for over 25,000 hours. At the end of the program, an RCL® catalytic pilot system has been developed and demonstrated to produce NOx emissions of less than 3 ppm (corrected to 15% O2) for 100% and 50% load operation in a production engine operating on natural gas. In addition, a Full RCL® combustor has been designed and demonstrated less than 2 ppm NOx (with potential to achieve 1 ppm) in single injector and modified engine testing. The catalyst/substrate combination has been shown to be stable up to 5500 hrs in simulated engine conditions.

Shahrokh Etemad; Benjamin Baird; Sandeep Alavandi; William Pfefferle

2009-09-30T23:59:59.000Z

126

Synchrotron Mesodiffraction: A Tool for Understanding Turbine Engine  

NLE Websites -- All DOE Office Websites (Extended Search)

3 3 B. L. Boyce,1 A. Mehta,2 J. O. Peters,3 and R. O. Ritchie4 1Sandia National Laboratories, PO Box 5800, MS: 0889, Albuquerque, NM 87185-0889 blboyce@sandia.gov 2Stanford Synchrotron Radiation Laboratory, 2575 Sand Hill Rd, Menlo Park, CA 94025 3Lufthansa Technik AG, HAM WR 124, Weg Beim Jäger 193, 22335 Hamburg, Germany janoke.peters@lht.dlh.de 4Lawrence Berkeley National Laboratory, MS: 62-203, 1 Cyclotron Rd., Berkeley, CA 94720 roritchie@lbl.gov Aircraft turbine engines routinely experience the ingestion of debris resulting in "foreign object damage" or FOD. Failures associated with foreign object damage have been estimated to cost the aerospace industry $4 billion per year. Often, FOD does not lead to sudden catastrophic failure, yet such damage can dramatically reduce the lifetime of components subjected to cyclic fatigue stresses. Turbine blades, for example, are susceptible to debris strikes and also experience significant fatigue loading. The current study seeks to develop insight into the driving forces and predictability of fatigue failures induced by foreign object damage. Such insight can be used to improve existing design methodologies for turbine engine components and inspection regimens.

127

An artificial neural network system for diagnosing gas turbine engine fuel faults  

DOE Green Energy (OSTI)

The US Army Ordnance Center & School and Pacific Northwest Laboratories are developing a turbine engine diagnostic system for the M1A1 Abrams tank. This system employs Artificial Neural Network (AN) technology to perform diagnosis and prognosis of the tank`s AGT-1500 gas turbine engine. This paper describes the design and prototype development of the ANN component of the diagnostic system, which we refer to as ``TEDANN`` for Turbine Engine Diagnostic Artificial Neural Networks.

Illi, O.J. Jr. [Army Ordnance Center and School, Aberdeen Proving Ground, MD (United States). Knowledge Engineering Group (KEG); Greitzer, F.L.; Kangas, L.J. [Pacific Northwest Lab., Richland, WA (United States); Reeve, T. [Expert Solutions, Stratford, CT (United States)

1994-04-01T23:59:59.000Z

128

FLAMELESS COMBUSTION APPLICATION FOR GAS TURBINE ENGINES IN THE AEROSPACE INDUSTRY.  

E-Print Network (OSTI)

??The objective of this thesis is to review the potential application of flameless combustion technology in aerospace gas turbine engines. Flameless combustion is a regime… (more)

OVERMAN, NICHOLAS

2006-01-01T23:59:59.000Z

129

Flameholding Studies for Lean Premixed Fuel Injectors for Application in Gas Turbine Engines.  

E-Print Network (OSTI)

??Due to the ever-increasing demand for energy, it is likely that stationary gas turbine engines will require the use of fuels with a diverse range… (more)

Marzelli, Steven

2010-01-01T23:59:59.000Z

130

Plant Guide to Turbine Disk Rim Inspection  

Science Conference Proceedings (OSTI)

Steam turbine disk rims are one of the most highly stressed areas of the rotor. Periodic inspection of the rims provides information on the operability of the rotor, including the identification of conditions that could result in catastrophic failure of the rotor.

2006-12-18T23:59:59.000Z

131

Advanced Turbine Technology Applications Project (ATTAP) and Hybrid Vehicle Turbine Engine Technology Support project (HVTE-TS): Final summary report  

DOE Green Energy (OSTI)

This final technical report was prepared by Rolls-Royce Allison summarizing the multiyear activities of the Advanced Turbine Technology Applications Project (ATTAP) and the Hybrid Vehicle Turbine Engine Technology Support (HVTE-TS) project. The ATTAP program was initiated in October 1987 and continued through 1993 under sponsorship of the US Department of Energy (DOE), Energy Conservation and Renewable Energy, Office of Transportation Technologies, Propulsion Systems, Advanced Propulsion Division. ATTAP was intended to advance the technological readiness of the automotive ceramic gas turbine engine. The target application was the prime power unit coupled to conventional transmissions and powertrains. During the early 1990s, hybrid electric powered automotive propulsion systems became the focus of development and demonstration efforts by the US auto industry and the Department of energy. Thus in 1994, the original ATTAP technology focus was redirected to meet the needs of advanced gas turbine electric generator sets. As a result, the program was restructured to provide the required hybrid vehicle turbine engine technology support and the project renamed HVTE-TS. The overall objective of the combined ATTAP and HVTE-TS projects was to develop and demonstrate structural ceramic components that have the potential for competitive automotive engine life cycle cost and for operating 3,500 hr in an advanced high temperature turbine engine environment. This report describes materials characterization and ceramic component development, ceramic components, hot gasifier rig testing, test-bed engine testing, combustion development, insulation development, and regenerator system development. 130 figs., 12 tabs.

NONE

1998-12-01T23:59:59.000Z

132

American Institute of Aeronautics and Astronautics PERFORMANCE INVESTIGATION OF SMALL GAS TURBINE ENGINES  

E-Print Network (OSTI)

American Institute of Aeronautics and Astronautics 1 PERFORMANCE INVESTIGATION OF SMALL GAS TURBINE and topped engines. INTRODUCTION Gas turbines are typical power sources used in a wide size range, development, and application of small gas turbines yielding high power density and enabling low-cost air

Müller, Norbert

133

Turbine-engine applications of thermographic-phosphor temperature measurements  

DOE Green Energy (OSTI)

The thermographic-phosphor (TP) method can measure temperature, heat flux, strain, and other physical quantities remotely in hostile and/or inaccessible environments such as the first-stage turbine components in turbine engines. It is especially useful in situations in which no other known method works well. This paper is a brief review of engine tests that demonstrated the utility of the TP method. For the most part, the results presented here are discussed only qualitatively. The papers in the bibliography describe these and other experiments and results in detail. The first viewgraph summarizes the many desirable features of the TP method. The second viewgraph describes TPs, and the third summarizes how the TP method works. To measure single-point temperatures in turbine-engine applications, we use the decay-time method, which depends on the fact that the luminescence following an impulse of ultraviolet excitation decays, with a characteristic decay time that. Is a monotonically decreasing function of temperature over some range of temperatures. The viewgraph is a set of calibration curves showing the behavior of some useful emission lines for ten important TPs. Consider Lu PO{sub 4}:Eu as an example. Below the {open_quotes}quenching{close_quotes} temperature near 900 Y, the decay time is nearly constant. Above it, the decay time decreases exponentially with the temperature. This strong functional dependence means that one can have a fairly large error in the lifetime measurement, as in environments with poor signal-to-noise ratios (SNRs), yet still obtain high accuracy in the temperature measurement. Our more-recent data up to 1900 K show the same behavior.

Noel, B.W. [Noel Associates, Espanola, NM (United States); Turley, W.D. [EG& G Energy Measurements, Goleta, CA (United States); Allison, S.W. [Martin Marietta Energy Systems, Oak Ridge, TN (United States)

1995-12-31T23:59:59.000Z

134

Energeticals power plant engineering | Open Energy Information  

Open Energy Info (EERE)

Energeticals power plant engineering Energeticals power plant engineering Jump to: navigation, search Name energeticals power plant engineering Place München, Bavaria, Germany Zip 81371 Sector Biomass, Geothermal energy Product Planning, design, installation and operation of turnkey plants for heat and electricity generation in the field of solid Biomass, deep and shallow geothermal energy and water power. References energeticals power plant engineering[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. energeticals power plant engineering is a company located in München, Bavaria, Germany . References ↑ "[ energeticals power plant engineering]" Retrieved from "http://en.openei.org/w/index.php?title=Energeticals_power_plant_engineering&oldid=344770

135

Analysis of a turbine trip test with a plant analyzer  

SciTech Connect

To improve nuclear power plant safety, the Taiwan Power Company is using a plant analyzer developed by Brookhaven National Laboratory (BNL). The BNL boiling water reactor (BWR) plant analyzer program was converted and modified for the Chinshan power station using the ADSIM simulation language. The plant analyzer uses a special-purpose peripheral processor, the AD-100 from the Applied Dynamic International Company, and detailed mathematical models. With the fast-computing features of the AD-100, the plant analyzer can carry out accurate and fast simulations of nuclear power plant transients. To qualify this program, simulation results were benchmarked against power test data. During a power test a Chinshan unit 1, a 1175-MW(thermal) boiling water reactor (BWR), a turbine trip test was performed from a steady-state condition of 83% of rated core power and 80% of rated core flow. It was initiated by a manual trip of the turbine. The purpose of this work is to simulate the turbine trip transient with the plant analyzer and compare the results with plant test data.

Wang, Shih-Jen; Chien, C.S.; Jang, J.Y.

1990-01-01T23:59:59.000Z

136

Fault detection and isolation in aircraft gas turbine engines. Part 2: validation on a simulation test bed  

E-Print Network (OSTI)

319 Fault detection and isolation in aircraft gas turbine engines. Part 2: validation of fault detection and isolation (FDI) in aircraft gas turbine engines. The FDI algorithms are built upon,onasimulationtestbed.Thetestbedisbuiltuponanintegratedmodelofageneric two-spool turbofan aircraft gas turbine engine including the engine control system. Keywords: aircraft

Ray, Asok

137

Power plants with topping gas turbines and coal gasification planning of new plants and upgrading of existing plants  

Science Conference Proceedings (OSTI)

This paper reports on existing and new power plants improved environmentally and economically by integrating gas turbines in the plant process. The rate of additional firing has an influence on the overall plant efficiency. The influence of the additional firing of natural gas-fired power plants is compared to that of power plants with integrated coal gasification. The differences are explained. The result of the examination lead to recommendations for the design of new plants and for upgrading of existing plants. The advantages of topping gas turbines are shown by examples of new power plants and upgraded plants.

Schoedel, J.; Mertens, K. (ABB Kraftwerke AG, Mannheim (DE))

1990-01-01T23:59:59.000Z

138

Steam deflector assembly for a steam injected gas turbine engine  

SciTech Connect

A steam injected gas turbine engine is described having a combustor, a casing for the combustor and an annular manifold comprising a part of the casing, the annular manifold having an exterior port formed therein and a plurality of holes formed in the manifold leading to the interior of the combustor, the improvement comprising a steam carrying line connected to the port and a steam deflector means for protecting the casing from direct impingement by the steam from the steam line and for distributing the steam about the annular manifold, the steam deflector means being mounted adjacent the port and within the manifold.

Holt, G.A. III.

1993-08-31T23:59:59.000Z

139

Plant Support Engineering: Generic Handbook for New System Engineers  

Science Conference Proceedings (OSTI)

In view of the demographics of todays nuclear plant system engineering organizations, newly hired and often inexperienced engineers are frequently assigned positions as system engineers. System engineering and training organizations are challenged with efficiently and effectively developing these individuals as expeditiously as possible.

2011-04-26T23:59:59.000Z

140

Design and component integration of a T63-A-700 gas turbine engine test facility ; .  

E-Print Network (OSTI)

??A gas turbine engine test cell was developed integrating an Allison T63-A-700 helicopter engine with a superflow water brake dynamometer power absorber. Design specifications were… (more)

Eckerle, Brian P.

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

UMore Park Wind Turbine Project Loggerhead Shrike Survey Draft Report to Barr Engineering  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

UMore Park Wind Turbine Project UMore Park Wind Turbine Project Loggerhead Shrike Survey Draft Report to Barr Engineering Lee A. Pfannmuller June 15, 2010 [1] UMore Park Wind Turbine Project Loggerhead Shrike Survey Report to Barr Engineering Lee A. Pfannmuller June 15, 2010 Project Area The University of Minnesota owns approximately 5,000 acres in Dakota County, known as the University of Minnesota Outreach, Research and Education (UMore) Park. A concept master plan was developed

142

Design of a High Temperature Small Particle Solar Receiver for Powering a Gas Turbine Engine  

E-Print Network (OSTI)

Design of a High Temperature Small Particle Solar Receiver for Powering a Gas Turbine Engine Dr. Fletcher Miller SDSU Department of Mechanical Engineering Abstract Solar thermal power for electricity will describe the design of a high temperature solar receiver capable of driving a gas turbine for power

Ponce, V. Miguel

143

Castability of 718Plus® Alloy for Structural Gas Turbine Engine ...  

Science Conference Proceedings (OSTI)

This technology will be implemented for the manufacture of gas turbine structural components ... Cast Alloys for Advanced Ultra Supercritical Steam Turbines.

144

Condition based management of gas turbine engine using neural networks.  

E-Print Network (OSTI)

??This research work is focused on the development of the hybrid neural network model to asses the gas turbine’s compressor health. Effects of various gas… (more)

Muthukumar, Krishnan.

2008-01-01T23:59:59.000Z

145

Small-Scale, Biomass-Fired Gas Turbine Plants Suitable for Distributed and Mobile Power Generation  

Science Conference Proceedings (OSTI)

This study evaluated the cost-effectiveness of small-scale, biomass-fired gas turbine plants that use an indirectly-fired gas turbine cycle. Such plants were originally thought to have several advantages for distributed generation, including portability. However, detailed analysis of two designs revealed several problems that would have to be resolved to make the plants feasible and also determined that a steam turbine cycle with the same net output was more economic than the gas turbine cycle. The incre...

2007-01-19T23:59:59.000Z

146

Gas turbine power plant with supersonic shock compression ramps  

SciTech Connect

A gas turbine engine. The engine is based on the use of a gas turbine driven rotor having a compression ramp traveling at a local supersonic inlet velocity (based on the combination of inlet gas velocity and tangential speed of the ramp) which compresses inlet gas against a stationary sidewall. The supersonic compressor efficiently achieves high compression ratios while utilizing a compact, stabilized gasdynamic flow path. Operated at supersonic speeds, the inlet stabilizes an oblique/normal shock system in the gasdynamic flow path formed between the rim of the rotor, the strakes, and a stationary external housing. Part load efficiency is enhanced by use of a lean pre-mix system, a pre-swirl compressor, and a bypass stream to bleed a portion of the gas after passing through the pre-swirl compressor to the combustion gas outlet. Use of a stationary low NOx combustor provides excellent emissions results.

Lawlor, Shawn P. (Bellevue, WA); Novaresi, Mark A. (San Diego, CA); Cornelius, Charles C. (Kirkland, WA)

2008-10-14T23:59:59.000Z

147

Next Generation Engineered Materials for Ultra Supercritical Steam Turbines  

SciTech Connect

To reduce the effect of global warming on our climate, the levels of CO{sub 2} emissions should be reduced. One way to do this is to increase the efficiency of electricity production from fossil fuels. This will in turn reduce the amount of CO{sub 2} emissions for a given power output. Using US practice for efficiency calculations, then a move from a typical US plant running at 37% efficiency to a 760 C /38.5 MPa (1400 F/5580 psi) plant running at 48% efficiency would reduce CO2 emissions by 170kg/MW.hr or 25%. This report presents a literature review and roadmap for the materials development required to produce a 760 C (1400 F) / 38.5MPa (5580 psi) steam turbine without use of cooling steam to reduce the material temperature. The report reviews the materials solutions available for operation in components exposed to temperatures in the range of 600 to 760 C, i.e. above the current range of operating conditions for today's turbines. A roadmap of the timescale and approximate cost for carrying out the required development is also included. The nano-structured austenitic alloy CF8C+ was investigated during the program, and the mechanical behavior of this alloy is presented and discussed as an illustration of the potential benefits available from nano-control of the material structure.

Douglas Arrell

2006-05-31T23:59:59.000Z

148

Computational Predictions and Experimental Measurements of the Performance of a Louver Particle Separator for Use in Gas Turbine Engines.  

E-Print Network (OSTI)

??Gas turbine engines that power aircraft operate in harsh environments where solid particles, such as sand, are ingested into the engine. Solid particles damage aircraft… (more)

Musgrove, Grant

2009-01-01T23:59:59.000Z

149

Causes of Combustion Instabilities with Passive and Active Methods of Control for practical application to Gas Turbine Engines.  

E-Print Network (OSTI)

??Combustion at high pressure in applications such as rocket engines and gas turbine engines commonly experience destructive combustion instabilities. These instabilities results from interactions between… (more)

Cornwell, Michael

2011-01-01T23:59:59.000Z

150

Constrained model predictive control implementation for a heavy-duty gas turbine power plant  

Science Conference Proceedings (OSTI)

In this paper, model predictive control (MPC) strategy is implemented to a GE9001E gas turbine power plant. A linear model is developed for the gas turbine using conventional mathematical models and ARX identification procedure. Also a process control ... Keywords: ARX, PID, gas turbine, identification, modeling, multivariable control, power plant, predictive control

Hadi Ghorbani; Ali Ghaffari; Mehdi Rahnama

2008-06-01T23:59:59.000Z

151

FUEL INTERCHANGEABILITY FOR LEAN PREMIXED COMBUSTION IN GAS TURBINE ENGINES  

DOE Green Energy (OSTI)

In response to environmental concerns of NOx emissions, gas turbine manufacturers have developed engines that operate under lean, pre-mixed fuel and air conditions. While this has proven to reduce NOx emissions by lowering peak flame temperatures, it is not without its limitations as engines utilizing this technology are more susceptible to combustion dynamics. Although dependent on a number of mechanisms, changes in fuel composition can alter the dynamic response of a given combustion system. This is of particular interest as increases in demand of domestic natural gas have fueled efforts to utilize alternatives such as coal derived syngas, imported liquefied natural gas and hydrogen or hydrogen augmented fuels. However, prior to changing the fuel supply end-users need to understand how their system will respond. A variety of historical parameters have been utilized to determine fuel interchangeability such as Wobbe and Weaver Indices, however these parameters were never optimized for today’s engines operating under lean pre-mixed combustion. This paper provides a discussion of currently available parameters to describe fuel interchangeability. Through the analysis of the dynamic response of a lab-scale Rijke tube combustor operating on various fuel blends, it is shown that commonly used indices are inadequate for describing combustion specific phenomena.

Don Ferguson; Geo. A. Richard; Doug Straub

2008-06-13T23:59:59.000Z

152

Fuel injector for use in a gas turbine engine  

Science Conference Proceedings (OSTI)

A fuel injector in a combustor apparatus of a gas turbine engine. An outer wall of the injector defines an interior volume in which an intermediate wall is disposed. A first gap is formed between the outer wall and the intermediate wall. The intermediate wall defines an internal volume in which an inner wall is disposed. A second gap is formed between the intermediate wall and the inner wall. The second gap receives cooling fluid that cools the injector. The cooling fluid provides convective cooling to the intermediate wall as it flows within the second gap. The cooling fluid also flows through apertures in the intermediate wall into the first gap where it provides impingement cooling to the outer wall and provides convective cooling to the outer wall. The inner wall defines a passageway that delivers fuel into a liner downstream from a main combustion zone.

Wiebe, David J.

2012-10-09T23:59:59.000Z

153

Combustor for a low-emissions gas turbine engine  

DOE Patents (OSTI)

Many government entities regulated emission from gas turbine engines including CO. CO production is generally reduced when CO reacts with excess oxygen at elevated temperatures to form CO2. Many manufactures use film cooling of a combustor liner adjacent to a combustion zone to increase durability of the combustion liner. Film cooling quenches reactions of CO with excess oxygen to form CO2. Cooling the combustor liner on a cold side (backside) away from the combustion zone reduces quenching. Furthermore, placing a plurality of concavities on the cold side enhances the cooling of the combustor liner. Concavities result in very little pressure reduction such that air used to cool the combustor liner may also be used in the combustion zone. An expandable combustor housing maintains a predetermined distance between the combustor housing and combustor liner.

Glezer, Boris (Del Mar, CA); Greenwood, Stuart A. (San Diego, CA); Dutta, Partha (San Diego, CA); Moon, Hee-Koo (San Diego, CA)

2000-01-01T23:59:59.000Z

154

Axially staged combustion system for a gas turbine engine  

DOE Patents (OSTI)

An axially staged combustion system is provided for a gas turbine engine comprising a main body structure having a plurality of first and second injectors. First structure provides fuel to at least one of the first injectors. The fuel provided to the one first injector is adapted to mix with air and ignite to produce a flame such that the flame associated with the one first injector defines a flame front having an average length when measured from a reference surface of the main body structure. Each of the second injectors comprising a section extending from the reference surface of the main body structure through the flame front and having a length greater than the average length of the flame front. Second structure provides fuel to at least one of the second injectors. The fuel passes through the one second injector and exits the one second injector at a location axially spaced from the flame front.

Bland, Robert J. (Oviedo, FL)

2009-12-15T23:59:59.000Z

155

Gas turbine electric plant construction cost and annual production expenses. First annual publication, 1972  

SciTech Connect

By the end of 1972, gas turbine power plants owned and operated by U.S. utilities had a capacity of 27,918 MW. Data from the 1972 annual reports filed with the Federal Power Commission by utility systems are presented which show the plant cost, generating expenses, capacity and generation, and plant and equipment characteristics of 299 gas turbine plants. (LCL)

1972-01-01T23:59:59.000Z

156

Research turbine supports sustained technology development. For more than three decades, engineers at the National Renewable Energy Labora-  

E-Print Network (OSTI)

Research turbine supports sustained technology development. For more than three decades, engineers, improve wind turbine performance, and reduce the cost of energy. Although there have been dramatic turbine test platform. Working with DOE, NREL purchased and installed a GE 1.5-MW wind turbine at the NWTC

157

Engineering a 70-percent efficient, indirect-fired fuel-cell bottomed turbine cycle  

SciTech Connect

The authors introduce the natural gas, indirect-fired fuel-cell bottomed turbine cycle (NG-IFFC) as a novel power plant system for the distributed power and on-site markets in the 20 to 200 megawatt (MW) size range. The NG-IFFC system is a new METC-patented system. This power-plant system links the ambient pressure, carbonate fuel cell in tandem with a gas turbine, air compressor, combustor, and ceramic heat exchanger. Performance calculations based on Advanced System for Process Engineering (ASPEN) simulations show material and energy balances with expected power output. Early results indicated efficiencies and heat rates for the NG-IFFC are comparable to conventionally bottomed, carbonate fuel-cell steam-bottomed cycles. More recent calculations extended the in-tandem concept to produce near-stoichiometric usage of the oxygen. This is made possible by reforming the anode stream to completion and using all hydrogen fuel in what will need to be a special combustor. The performance increases dramatically to 70%.

Williams, M.C.; Micheli, P.L.; Parsons, E.L. Jr.

1996-08-01T23:59:59.000Z

158

Development of a catalytic combustion system for the MIT Micro Gas Turbine Engine  

E-Print Network (OSTI)

As part of the MIT micro-gas turbine engine project, the development of a hydrocarbon-fueled catalytic micro-combustion system is presented. A conventionally-machined catalytic flow reactor was built to simulate the ...

Peck, Jhongwoo, 1976-

2003-01-01T23:59:59.000Z

159

A market and engineering study of a 3-kilowatt class gas turbine generator  

E-Print Network (OSTI)

Market and engineering studies were performed for the world's only commercially available 3 kW class gas turbine generator, the IHI Aerospace Dynajet. The objectives of the market study were to determine the competitive ...

Monroe, Mark A. (Mark Alan)

2003-01-01T23:59:59.000Z

160

Development and assessment of a soot emissions model for aircraft gas turbine engines  

E-Print Network (OSTI)

Assessing candidate policies designed to address the impact of aviation on the environment requires a simplified method to estimate pollutant emissions for current and future aircraft gas turbine engines under different ...

Martini, Bastien

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Hybrid staging of a Lysholm positive displacement engine with two Westinghouse two stage impulse Curtis turbines  

SciTech Connect

The University of California at Berkeley has tested and modeled satisfactorly a hybrid staged Lysholm engine (positive displacement) with a two stage Curtis wheel turbine. The system operates in a stable manner over its operating range (0/1-3/1 water ratio, 120 psia input). Proposals are made for controlling interstage pressure with a partial admission turbine and volume expansion to control mass flow and pressure ratio for the Lysholm engine.

Parker, D.A.

1982-06-01T23:59:59.000Z

162

Compilation of Results and Feedback Regarding Turbine Upgrades at Nuclear and Fossil Power Plants  

Science Conference Proceedings (OSTI)

This report compiles results and feedback and draws a number of conclusions and lessons learned regarding steam turbine generator upgrades at nuclear and fossil power plants.

2008-11-24T23:59:59.000Z

163

A Silicon-Based Micro Gas Turbine Engine for Power Generation  

E-Print Network (OSTI)

This paper reports on our research in developing a micro power generation system based on gas turbine engine and piezoelectric converter. The micro gas turbine engine consists of a micro combustor, a turbine and a centrifugal compressor. Comprehensive simulation has been implemented to optimal the component design. We have successfully demonstrated a silicon-based micro combustor, which consists of seven layers of silicon structures. A hairpin-shaped design is applied to the fuel/air recirculation channel. The micro combustor can sustain a stable combustion with an exit temperature as high as 1600 K. We have also successfully developed a micro turbine device, which is equipped with enhanced micro air-bearings and driven by compressed air. A rotation speed of 15,000 rpm has been demonstrated during lab test. In this paper, we will introduce our research results major in the development of micro combustor and micro turbine test device.

Shan, X -C; Maeda, R; Sun, Y F; Wu, M; Hua, J S

2007-01-01T23:59:59.000Z

164

Gas turbine engine control using electrically driven fuel metering pumps.  

E-Print Network (OSTI)

??The aim of this thesis, developed in ROLLS ROYCE PLC, has been to investigate the use of an innovative fuel system on aero gas turbine… (more)

BERTOLUCCI, ALESSIO

2008-01-01T23:59:59.000Z

165

Opportunities and Challenges for Advanced Aero Turbine Engine ...  

Science Conference Proceedings (OSTI)

This presentation highlights some leading edge opportunities for materials in gas turbines, and the challenges that these present to materials developers.

166

NREL Develops Simulations for Wind Plant Power and Turbine Loads...  

NLE Websites -- All DOE Office Websites (Extended Search)

loading due to wake turbulence. The current state of knowledge concerning wind turbine wakes and how they interact with other turbines and the atmospheric boundary layer is...

167

Compatibility of alternative fuels with advanced automotive gas-turbine and Stirling engines. A literature survey  

DOE Green Energy (OSTI)

The application of alternative fuels in advanced automotive gas turbine and Stirling engines is discussed on the basis of a literature survey. These alternative engines are briefly described, and the aspects that will influence fuel selection are identified. Fuel properties and combustion properties are discussed, with consideration given to advanced materials and components. Alternative fuels from petroleum, coal, oil shale, alcohol, and hydrogen are discussed, and some background is given about the origin and production of these fuels. Fuel requirements for automotive gas turbine and Stirling engines are developed, and the need for certain research efforts is discussed. Future research efforts planned at Lewis are described. 52 references.

Cairelli, J.; Horvath, D.

1981-05-01T23:59:59.000Z

168

Advanced turbine design for coal-fueled engines  

SciTech Connect

The investigators conclude that: (1) Turbine erosion resistance was shown to be improved by a factor of 5 by varying the turbine design. Increasing the number of stages and increasing the mean radius reduces the peak predicted erosion rates for 2-D flows on the blade airfoil from values which are 6 times those of the vane to values of erosion which are comparable to those of the vane airfoils. (2) Turbine erosion was a strong function of airfoil shape depending on particle diameter. Different airfoil shapes for the same turbine operating condition resulted in a factor of 7 change in airfoil erosion for the smallest particles studied (5 micron). (3) Predicted erosion for the various turbines analyzed was a strong function of particle diameter and weaker function of particle density. (4) Three dimensional secondary flows were shown to cause increases in peak and average erosion on the vane and blade airfoils. Additionally, the interblade secondary flows and stationary outer case caused unique erosion patterns which were not obtainable with 2-D analyses. (5) Analysis of the results indicate that hot gas cleanup systems are necessary to achieve acceptable turbine life in direct-fired, coal-fueled systems. In addition, serious consequences arise when hot gas filter systems fail for even short time periods. For a complete failure of the filter system, a 0.030 in. thick corrosion-resistant protective coating on a turbine blade would be eroded at some locations within eight minutes.

Wagner, J.H.; Johnson, B.V.

1993-04-01T23:59:59.000Z

169

Department of Mechanical Engineering Fall 2011 Pratt & Whitney Engine Low Pressure Turbine Vane Cluster Analysis  

E-Print Network (OSTI)

Turbine Vane Cluster Analysis Overview The goal was to provide Pratt & Whitney with a detailed finite

Demirel, Melik C.

170

Comparison of intergrated coal gasification combined cycle power plants with current and advanced gas turbines  

Science Conference Proceedings (OSTI)

Two recent conceptual design studies examined ''grass roots'' integrated gasification-combined cycle (IGCC) plants for the Albany Station site of Niagara Mohawk Power Corporation. One of these studies was based on the Texaco Gasifier and the other was developed around the British Gas Co.-Lurgi slagging gasifier. Both gasifiers were operated in the ''oxygen-blown'' mode, producing medium Btu fuel gas. The studies also evaluated plant performance with both current and advanced gas turbines. Coalto-busbar efficiencies of approximately 35 percent were calculated for Texaco IGCC plants using current technology gas turbines. Efficiencies of approximately 39 percent were obtained for the same plant when using advanced technology gas turbines.

Banda, B.M.; Evans, T.F.; McCone, A.I.; Westisik, J.H.

1984-08-01T23:59:59.000Z

171

3D Modeling of Dendritic Grain Structures in Turbine Blade ...  

Science Conference Proceedings (OSTI)

modern aircraft engines and land-based power-plants. .... Figure 2 illustrates the grid generation for a close-up detail of a turbine blade geometry. (junction ...

172

Proceedings: Decommissioning - Plant Reconfiguration and Engineering Processes Workshop  

Science Conference Proceedings (OSTI)

EPRI's Plant Reconfiguration and Engineering Processes Workshop -- the seventh in a series -- will help utility personnel evaluate technologies for decommissioning nuclear power plants. This workshop focused on specific aspects of plant reconfiguration and engineering processes as they relate to nuclear plant decommissioning. The information presented will help utilities assess approaches to restructuring of plant engineering processes and reconfiguration management to meet individual decommissioning pro...

2001-01-09T23:59:59.000Z

173

Biphase turbine bottoming cycle for a diesel engine  

SciTech Connect

Application of a two-phase turbine system to waste heat recovery was examined. Bottoming cycle efficiencies ranging from 15 to 30% were calculated for a 720/sup 0/F diesel exhaust temperature. A single stage demonstration unit, designed for non-toxic fluids (water and DowTherm A) and for atmospheric seals and bearings, had a cycle efficiency of 23%. The net output power was 276 hp at 8,100 rpm, increasing the total shaft power from 1,800 hp for the diesel alone, to 2,076 hp for the combined system. A four stage organic turbine, for the same application, had a rotational speed of 14,700 rpm while a four stage steam turbine had 26,000 rpm. Fabrication drawings were prepared for the turbine and nozzle. The major improvement leading to higher cycle efficiency and lower turbine rpm was found to be the use of a liquid component with lower sensible heat. A reduction in capital cost was found to result from the use of a contact heat exchanger instead of tube-fin construction. The cost for a contact heat exchanger was only $35-52/kWe compared to $98/kWe for a tube-fin heat exchanger. Design drawings and materials list were prepared. A program resulting in the demonstration of a two-phase bottoming system was planned and the required cost estimated. The program would result in a feasibility test of the nozzle and turbine at the end of the first year, a laboratory performance test of the bottoming system by the end of the second year and a field demonstration test and laboratory endurance test of the bottoming system during the third year. The blowdown test rig for the first year's program and test turbine were designed.

Ahmad, S.; Hays, L.

1977-02-15T23:59:59.000Z

174

Supersaturated Turbine Expansions for Binary Geothermal Power Plants  

DOE Green Energy (OSTI)

The Heat Cycle Research project is developing the technology base that will permit a much greater utilization of the moderate-temperature, liquid-dominated geothermal resources, particularly for the generation of electrical power. The emphasis in the project has been the improvement of the performance of binary power cycles. The investigations have been examining concepts projected to improve the brine utilization by 20% relative to a ''Heber-type'' binary plant; these investigations are nearing completion. preparations are currently underway in the project to conduct field investigations of the condensation behavior of supersaturated turbine expansions. These investigations will evaluate whether the projected additional 8% to 10% improvement in brine utilization can be realized by allowing these expansions. Future program efforts will focus on the problems associated with heat rejection and on the transfer of the technology being developed to industry.

Bliem, C.J.; Mines, G.L.

1992-03-24T23:59:59.000Z

175

Study and program plan for improved heavy duty gas turbine engine ceramic component development  

DOE Green Energy (OSTI)

A five-year program plan was generated from the study activities with the objectives of demonstrating a fuel economy of 213 mg/W . h (0.35 lb/hp-hr) brake specific fuel consumption by 1981 through use of ceramic materials, with conformance to current and projected Federal noise and emission standards, and to demonstrate a commercially viable engine. Study results show that increased turbine inlet and regenerator inlet temperatures, through the use of ceramic materials, contribute the greatest amount to achieving fuel economy goals. Further, improved component efficiencies (for the compressor, gasifier turbine, power turbine, and regenerator disks show significant additional gains in fuel economy. Fuel saved in a 500,000-mile engine life, risk levels involved in development, and engine-related life cycle costs for fleets (100 units) of trucks and buses were used as criteria to select work goals for the planned program.

Helms, H.E.

1977-05-01T23:59:59.000Z

176

Open loop pneumatic control of a Lysholm engine or turbine exhaust pressure  

DOE Green Energy (OSTI)

A Lysholm engine, or helical screw expander, is currently being evaluated at the University of California, Berkeley for staging with a conventional turbine in geothermal energy conversion. A pneumatic closed loop, proportional-integral control system was implemented to control the Lysholm engine's exhaust pressure for performance testing of the engine at constant inlet/outlet pressure ratios. The control system will also be used to control the exhaust pressure of the conventional turbine during future testing of the staged Lysholm-turbine system. Analytical modeling of the control system was performed and successful tuning was achieved by applying Ziegler-Nichol's tuning method. Stable control and quick response, of approximately 1 minute, was demonstrated for load and set point changes in desired exhaust pressures.

Plonski, B.A.

1981-07-17T23:59:59.000Z

177

Engineered plant biomass feedstock particles  

DOE Patents (OSTI)

A new class of plant biomass feedstock particles characterized by consistent piece size and shape uniformity, high skeletal surface area, and good flow properties. The particles of plant biomass material having fibers aligned in a grain are characterized by a length dimension (L) aligned substantially parallel to the grain and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. In particular, the L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers, the W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers, and the L.times.W dimensions define a pair of substantially parallel top and bottom surfaces. The L.times.W surfaces of particles with L/H dimension ratios of 4:1 or less are further elaborated by surface checking between longitudinally arrayed fibers. The length dimension L is preferably aligned within 30.degree. parallel to the grain, and more preferably within 10.degree. parallel to the grain. The plant biomass material is preferably selected from among wood, agricultural crop residues, plantation grasses, hemp, bagasse, and bamboo.

Dooley, James H. (Federal Way, WA); Lanning, David N. (Federal Way, WA); Broderick, Thomas F. (Lake Forest Park, WA)

2012-04-17T23:59:59.000Z

178

Sealing apparatus for airfoils of gas turbine engines  

DOE Patents (OSTI)

An improved airfoil tip sealing apparatus is disclosed wherein brush seals are attached to airfoil tips with the distal ends of the brush seal fibers sealingly contacting opposing wall surfaces. Embodiments for variable vanes, stators and both cooled and uncooled turbine blade applications are disclosed.

Jones, Russell B. (San Diego, CA)

1998-01-01T23:59:59.000Z

179

Sealing apparatus for airfoils of gas turbine engines  

DOE Patents (OSTI)

An improved airfoil tip sealing apparatus is disclosed wherein brush seals are attached to airfoil tips with the distal ends of the brush seal fibers sealingly contacting opposing wall surfaces. Embodiments for variable vanes, stators and both cooled and uncooled turbine blade applications are disclosed. 17 figs.

Jones, R.B.

1998-05-19T23:59:59.000Z

180

Steam Turbine Materials for Ultrasupercritical Coal Power Plants  

SciTech Connect

The Ultrasupercritical (USC) Steam Turbine Materials Development Program is sponsored and funded by the U.S. Department of Energy and the Ohio Coal Development Office, through grants to Energy Industries of Ohio (EIO), a non-profit organization contracted to manage and direct the project. The program is co-funded by the General Electric Company, Alstom Power, Siemens Power Generation (formerly Siemens Westinghouse), and the Electric Power Research Institute, each organization having subcontracted with EIO and contributing teams of personnel to perform the requisite research. The program is focused on identifying, evaluating, and qualifying advanced alloys for utilization in coal-fired power plants that need to withstand steam turbine operating conditions up to 760°C (1400°F) and 35 MPa (5000 psi). For these conditions, components exposed to the highest temperatures and stresses will need to be constructed from nickel-based alloys with higher elevated temperature strength than the highchromium ferritic steels currently used in todayâ??s high-temperature steam turbines. In addition to the strength requirements, these alloys must also be weldable and resistant to environmental effects such as steam oxidation and solid particle erosion. In the present project, candidate materials with the required creep strength at desired temperatures have been identified. Coatings that can resist oxidation and solid particle erosion have also been identified. The ability to perform dissimilar welds between nickel base alloys and ferritic steels have been demonstrated, and the properties of the welds have been evaluated. Results of this three-year study that was completed in 2009 are described in this final report. Additional work is being planned and will commence in 2009. The specific objectives of the future studies will include conducting more detailed evaluations of the weld-ability, mechanical properties and repair-ability of the selected candidate alloys for rotors, casings and valves, and to perform scale-up studies to establish a design basis for commercial scale components. A supplemental program funded by the Ohio Coal Development Office will undertake supporting tasks such as testing and trials using existing atmospheric, vacuum and developmental pressure furnaces to define specific metal casting techniques needed for producing commercial scale components.

Viswanathan, R.; Hawk, J.; Schwant, R.; Saha, D.; Totemeier, T.; Goodstine, S.; McNally, M.; Allen, D. B.; Purgert, Robert

2009-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Plant Support Engineering: Elastomer Handbook for Nuclear Power Plants  

Science Conference Proceedings (OSTI)

On a daily basis, engineers and maintenance personnel make judgments regarding the capabilities, degradation, and longevity of elastomeric material and its compatibility with other materials. Although most applications of elastomers in nuclear power plants are not unique to the industry, there is an extra emphasis in certain applications with regard to reliability, quality, and resistance to nuclear-plant-specific environments. Existing resources on elastomers are extensive, but they are not tailored to ...

2007-08-20T23:59:59.000Z

182

Hybrid vehicle turbine engine technology support (HVTE-TS) project. 1995--1996 annual report  

DOE Green Energy (OSTI)

This report presents a summary of technical work accomplished on the Hybrid Vehicle Turbine Engine--Technology Support (HVTE-TS) Project during calendar years 1995 and 1996. Work was performed under an initial National Aeronautics and Space Administration (NASA) contract DEN3-336. As of September 1996 the contract administration was transferred to the US Department of Energy (DoE) Chicago Operations Office, and renumbered as DE-AC02-96EE50553. The purpose of the HVTE-TS program is to develop gas turbine engine technology in support of DoE and automotive industry programs exploring the use of gas turbine generator sets in hybrid-electric automotive propulsion systems. The program focus is directed to the development of four key technologies to be applied to advanced turbogenerators for hybrid vehicles: Structural ceramic materials and processes; Low emissions combustion systems; Regenerators and seals systems; and Insulation systems and processes. 60 figs., 9 tabs.

NONE

1996-12-31T23:59:59.000Z

183

Method of optimizing the efficiency of a steam turbine power plant  

SciTech Connect

A method is disclosed for improving the operational efficiency of a steam turbine power plant by governing the adjustment of the throttle steam pressure of a steam turbine at a desired power plant output demand value. In the preferred embodiment, the impulse chamber pressure of a high pressure section of the steam turbine is measured as a representation of the steam flow through the steam turbine. At times during the operation of the plant at the desired output demand value, the throttle pressure is perturbed. The impulse chamber pressure is measured before and after the perturbations of the throttle pressure. Because changing thermodynamic conditions may occur possibly as a result of the perturbations and provide an erroneous representation of the steam flow through the turbine, the impulse chamber pressure measurements are compensated for determined measurable thermodynamic conditions in the steam turbine. A compensated change in impulse chamber pressure measurement in a decreasing direction as a result of the direction of perturbation of the steam throttle pressure may indicate that further adjustment in the same direction is beneficial in minimizing the steam flow through the steam turbine at the desired plant output demand value. The throttle steam pressure adjustment may be continually perturbed in the same direction until the compensated change in impulse chamber pressure before and after measurements falls below a predetermined value, whereby the steam flow is considered substantially at a minimum for the desired plant output demand value.

Silvestri, G.J.

1981-11-03T23:59:59.000Z

184

Engineered plant biomass feedstock particles  

DOE Patents (OSTI)

A novel class of flowable biomass feedstock particles with unusually large surface areas that can be manufactured in remarkably uniform sizes using low-energy comminution techniques. The feedstock particles are roughly parallelepiped in shape and characterized by a length dimension (L) aligned substantially with the grain direction and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. The particles exhibit a disrupted grain structure with prominent end and surface checks that greatly enhances their skeletal surface area as compared to their envelope surface area. The L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers. The W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers. The L.times.W dimensions define a pair of substantially parallel top surfaces characterized by some surface checking between longitudinally arrayed fibers. The feedstock particles are manufactured from a variety of plant biomass materials including wood, crop residues, plantation grasses, hemp, bagasse, and bamboo.

Dooley, James H. (Federal Way, WA); Lanning, David N. (Federal Way, WA); Broderick, Thomas F. (Lake Forest Park, WA)

2011-10-11T23:59:59.000Z

185

Engineered plant biomass feedstock particles  

DOE Patents (OSTI)

A novel class of flowable biomass feedstock particles with unusually large surface areas that can be manufactured in remarkably uniform sizes using low-energy comminution techniques. The feedstock particles are roughly parallelepiped in shape and characterized by a length dimension (L) aligned substantially with the grain direction and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. The particles exhibit a disrupted grain structure with prominent end and surface checks that greatly enhances their skeletal surface area as compared to their envelope surface area. The L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers. The W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers. The L.times.W dimensions define a pair of substantially parallel top surfaces characterized by some surface checking between longitudinally arrayed fibers. At least 80% of the particles pass through a 1/4 inch screen having a 6.3 mm nominal sieve opening but are retained by a No. 10 screen having a 2 mm nominal sieve opening. The feedstock particles are manufactured from a variety of plant biomass materials including wood, crop residues, plantation grasses, hemp, bagasse, and bamboo.

Dooley, James H. (Federal Way, WA); Lanning, David N. (Federal Way, WA); Broderick, Thomas F. (Lake Forest Park, WA)

2011-10-18T23:59:59.000Z

186

Gas Turbine Cogeneration Plant for the Dade County Government Center  

E-Print Network (OSTI)

A government complex consisting of a number of State, County, and City buildings is currently under construction in the downtown area of Miami, Florida. Thermo Electron Corporation and Rolls- Royce Inc. are providing a unique fuel saving cogeneration system to supply the air conditioning and electrical power requirements of the complex. This $30 million cogeneration plant will occupy a portion of a multiple-use building which will also house offices, indoor parking facilities, and additional building support systems. Locating such a powerplant in downtown Miami presents significant construction scheduling, environmental, and engineering challenges. Issues such as space limitations, emissions, noise pollution, and maintenance have been carefully addressed and successfully resolved.

Michalowski, R. W.; Malloy, M. K.

1985-05-01T23:59:59.000Z

187

Design, fabrication, and performance of a gas-turbine engine from an automobile turbocharger  

E-Print Network (OSTI)

Thermal-Fluids Engineering is taught in two semesters in the Department of Mechanical Engineering at the Massachusetts Institute of Technology. To emphasize the course material, running experiments of thermodynamic plants ...

Padilla, Jorge, 1983-

2005-01-01T23:59:59.000Z

188

Dynamics and control modeling of the closed-cycle gas turbine (GT-HTGR) power plant  

SciTech Connect

The simulation if presented for the 800-MW(e) two-loop GT-HTGR plant design with the REALY2 transient analysis computer code, and the modeling of control strategies called for by the inherently unique operational requirements of a multiple loop GT-HTGR is described. Plant control of the GT-HTGR is constrained by the nature of its power conversion loops (PCLs) in which the core cooling flow and the turbine flow are directly related and thus changes in flow affect core cooling as well as turbine power. Additionally, the high thermal inertia of the reactor core precludes rapid changes in the temperature of the turbine inlet flow.

Bardia, A.

1980-02-01T23:59:59.000Z

189

Production of Diesel Engine Turbocharger Turbine from Low Cost Titanium Powder  

DOE Green Energy (OSTI)

Turbochargers in commercial turbo-diesel engines are multi-material systems where usually the compressor rotor is made of aluminum or titanium based material and the turbine rotor is made of either a nickel based superalloy or titanium, designed to operate under the harsh exhaust gas conditions. The use of cast titanium in the turbine section has been used by Cummins Turbo Technologies since 1997. Having the benefit of a lower mass than the superalloy based turbines; higher turbine speeds in a more compact design can be achieved with titanium. In an effort to improve the cost model, and develop an industrial supply of titanium componentry that is more stable than the traditional aerospace based supply chain, the Contractor has developed component manufacturing schemes that use economical Armstrong titanium and titanium alloy powders and MgR-HDH powders. Those manufacturing schemes can be applied to compressor and turbine rotor components for diesel engine applications with the potential of providing a reliable supply of titanium componentry with a cost and performance advantage over cast titanium.

Muth, T. R.; Mayer, R. (Queen City Forging)

2012-05-04T23:59:59.000Z

190

Multiple piece turbine engine airfoil with a structural spar  

DOE Patents (OSTI)

A multiple piece turbine airfoil having an outer shell with an airfoil tip that is attached to a root with an internal structural spar is disclosed. The root may be formed from first and second sections that include an internal cavity configured to receive and secure the one or more components forming the generally elongated airfoil. The internal structural spar may be attached to an airfoil tip and place the generally elongated airfoil in compression. The configuration enables each component to be formed from different materials to reduce the cost of the materials and to optimize the choice of material for each component.

Vance, Steven J. (Orlando, FL)

2011-10-11T23:59:59.000Z

191

Apparatus and method for partial-load operation of a combined gas and steam turbine plant  

SciTech Connect

Apparatus and method are disclosed for the partial load operation of a combined gas turbine and steam turbine plant, including a shaft being connected to the gas turbine and drivable at a given nominal speed of rotation, a first generator being connected to the shaft and electrically connectible to an electric network, a compressor being connected to the shaft and connected upstream of the gas turbine in gas flow direction, a heat exchanger having an output and a variable heat supply and being connected upstream of the gas turbine in gas flow direction, a steam generator for the steam turbine being connected downstream of the gas turbine in gas flow direction for receiving exhaust gases therefrom, a second generator being connected to the steam turbine and electrically connectible to the electric network for supplying given nominal power thereto along with the first generator, means for giving to the electric network and taking away from the network at least part of the nominal power if the shaft rotates at less than the nominal speed of rotation, and means for reducing the speed of rotation of the gas turbine for preventing a substantial drop in temperature at the output of the heat exchanger if the heat supply of the heat exchanger is reduced.

Becker, B.; Finckh, H.; Meyer-pittroff, R.

1982-07-20T23:59:59.000Z

192

Ceramics for ATS industrial turbines  

DOE Green Energy (OSTI)

US DOE and most US manufacturers of stationary gas turbines are participating in a major national effort to develop advanced turbine systems (ATS). The ATS program will achieve ultrahigh efficiencies, environmental superiority, and cost competitiveness compared with current combustion turbine systems. A major factor in the improved efficiencies of simple cycle ATS gas turbines will be higher operating efficiencies than curren engines. These temperatures strain the limits of metallic alloy and flow-path cooling technologies. Ceramics materials offer a potential alterative to cooled turbine alloys for ATS turbines due to higher melting points than metallics. This paper evaluates ceramics technology and plant economic issues for ATS industrial turbine systems. A program with the objective of demonstrating first-stage ceramic vanes in a commerical industrial turbine is also described.

Wenglarz, R.; Ali, S. [Allison Engine Co., Indianapolis, IN (United States); Layne, A. [USDOE Morgantown Energy Technology Center, WV (United States)

1996-05-01T23:59:59.000Z

193

System for minimizing valve throttling losses in a steam turbine power plant  

SciTech Connect

A system which integrates the controls of a steam turbine power plant for minimizing power plant energy losses substantially caused by steam flow valve throttling is disclosed. The steam turbine power plant includes boiler pressure controls for controlling the boiler throttle pressure of a steam producing boiler and turbine-generator controls for positioning a plurality of turbine steam admission values to regulate the steam flow conducted through a steam turbine which governs the electrical energy generated by an electrical generator at a desired power generation level. The turbine-generator controls predetermine a plurality of valve position states to establish a predetermined valve grouping sequential positioning pattern for the steam admission valves to regulate steam flow through the steam turbine across the range of power generation, each predetermined state substantially corresponding to a minimum of valve throttling losses. The steam admission valves may be positioned at a present valve position state, which is other than one of the predetermined states, as a result of a change in desired power generation level. The disclosed system responds to this condition by governing the boiler pressure controls to adjust the boiler throttle pressure at a desired rate and in a direction to cause steam admission valves to be repositioned according to the sequential positioning pattern to a selected one of the predetermined efficient valve position states. The repositioning of the steam admission valves is performed by maintaining the generated energy substantially at the new desired power generation level.

Stern, L.P.; Johnson, S.J.

1979-12-18T23:59:59.000Z

194

UNIVERSITY TURBINE SYSTEMS RESEARCH-HIGH EFFICIENCY ENGINES AND TURBINES (UTSR-HEET)  

Science Conference Proceedings (OSTI)

In 2002, the U S Department of Energy established a cooperative agreement for a program now designated as the University Turbine Systems (UTSR) Program. As stated in the cooperative agreement, the objective of the program is to support and facilitate development of advanced energy systems incorporating turbines through a university research environment. This document is the first annual, technical progress report for the UTSR Program. The Executive Summary describes activities for the year of the South Carolina Institute for Energy Studies (SCIES), which administers the UTSR Program. Included are descriptions of: Outline of program administrative activities; Award of the first 10 university research projects resulting from a year 2001 RFP; Year 2002 solicitation and proposal selection for awards in 2003; Three UTSR Workshops in Combustion, Aero/Heat Transfer, and Materials; SCIES participation in workshops and meetings to provide input on technical direction for the DOE HEET Program; Eight Industrial Internships awarded to higher level university students; Increased membership of Performing Member Universities to 105 institutions in 40 states; Summary of outreach activities; and a Summary table describing the ten newly awarded UTSR research projects. Attachment A gives more detail on SCIES activities by providing the monthly exceptions reports sent to the DOE during the year. Attachment B provides additional information on outreach activities for 2002. The remainder of this report describes in detail the technical approach, results, and conclusions to date for the UTSR university projects.

Lawrence P. Golan; Richard A. Wenglarz; William H. Day

2003-03-01T23:59:59.000Z

195

Examination of cracked turbine discs from nuclear power plants  

SciTech Connect

Investigations were performed on a cracked turbine disc from the Cooper Nuclear Power Station (BWR), and on two failed turbine discs from the Yankee-Rowe Nuclear Power Station (PWR). The Yankee-Rowe discs were subjected to SEM/EDAX, uniaxial tension tests, hardness testing, notch sensitivity tests, and environmental notched tensile tests. The results of this investigation support the model whereby the cracks initiated at startup of the turbine, probably from H/sub 2/S produced by hydrolysis of MoS/sub 2/, and grew at a rate consistent with published data for propagation of cracks in pure steam.

Czajkowski, C.J.; Weeks, J.R.

1983-03-01T23:59:59.000Z

196

GAS TURBINES  

E-Print Network (OSTI)

In the age of volatile and ever increasing natural gas fuel prices, strict new emission regulations and technological advancements, modern IGCC plants are the answer to growing market demands for efficient and environmentally friendly power generation. IGCC technology allows the use of low cost opportunity fuels, such as coal, of which there is a more than a 200-year supply in the U.S., and refinery residues, such as petroleum coke and residual oil. Future IGCC plants are expected to be more efficient and have a potential to be a lower cost solution to future CO2 and mercury regulations compared to the direct coal fired steam plants. Siemens has more than 300,000 hours of successful IGCC plant operational experience on a variety of heavy duty gas turbine models in Europe and the U.S. The gas turbines involved range from SGT5-2000E to SGT6-3000E (former designations are shown on Table 1). Future IGCC applications will extend this experience to the SGT5-4000F and SGT6-4000F/5000F/6000G gas turbines. In the currently operating Siemens ’ 60 Hz fleet, the SGT6-5000F gas turbine has the most operating engines and the most cumulative operating hours. Over the years, advancements have increased its performance and decreased its emissions and life cycle costs without impacting reliability. Development has been initiated to verify its readiness for future IGCC application including syngas combustion system testing. Similar efforts are planned for the SGT6-6000G and SGT5-4000F/SGT6-4000F models. This paper discusses the extensive development programs that have been carried out to demonstrate that target emissions and engine operability can be achieved on syngas operation in advanced F-class 50 Hz and 60 Hz gas turbine based IGCC applications.

Power For L; Satish Gadde; Jianfan Wu; Anil Gulati; Gerry Mcquiggan; Berthold Koestlin; Bernd Prade

2006-01-01T23:59:59.000Z

197

Analysis and synthesis of logical-dynamic systems of automatic control of a gas-turbine engine  

Science Conference Proceedings (OSTI)

Specific features of analysis and synthesis of logical-dynamic automatic control systems with algebraic selectors for gas-turbine engines are considered. Equivalent nonlinear structures of these systems are obtained. Methods for providing stability, ...

V. I. Petunin; A. I. Frid

2012-11-01T23:59:59.000Z

198

IMPROVEMENTS IN AND RELATING TO STEAM CONDENSER INSTALLATIONS FOR STEAM TURBINE POWER PLANT  

SciTech Connect

A steam condenser arrangement for turbine power plants which have excess steam at times is described. A dump condenser with cooling water connections in parallel with steam turbine condensers receives surplus steam. Cooling water from the turbine condensers is mixed with coolant from the dump condenser so that a predetermined maximum temperature is not exceeded. The quantity of cooling water passing through the dump condenser is a proportion of the total circulating water requirements of the condenser installation, and the pressure drop across it is less than that across the main condensers. (T.R.H.)

1960-05-18T23:59:59.000Z

199

Generation Maintenance Application Center: Fuel Gas System for Combustion Turbine Combined Cycle Plant Maintenance Guide  

Science Conference Proceedings (OSTI)

This guide provides information to assist personnel involved with the maintenance of the fuel gas system at a gas turbine combined cycle facility, including good maintenance practices, preventive maintenance techniques and troubleshooting guidance. BackgroundCombustion turbine combined cycle (CTCC) facilities utilize various components that can be unique to this particular type of power plant. As such, owners and operators of CTCC facilities may find ...

2013-05-15T23:59:59.000Z

200

Turbine arrangement  

SciTech Connect

A turbine arrangement is disclosed for a gas turbine engine having a sloped gas flowpath through the turbine. The radial axes of the rotor blades and stator vanes in the sloped flowpath are tilted such that the axes are substantially normal to the mean flow streamline of the gases. This arrangement reduces tip losses and thereby increases engine efficiency.

Johnston, R.P.

1984-02-28T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Time Accurate Unsteady Simulation of the Stall Inception Process in the Compression System of a US Army Helicopter Gas Turbine Engine  

Science Conference Proceedings (OSTI)

The operational envelope of gas turbine engines such as those employed in the Army Blackhawk helicopter is constrained by the stability limit of the compression system. Technologies developed to improve the stable operating range of gas turbine compressors ...

Michael D. Hathaway; Greg Herrick; Jenping Chen; Robert Webster

2004-06-01T23:59:59.000Z

202

Dual turbine power plant and method of operating such plant, especially one having an HTGR steam supply  

SciTech Connect

A power plant including dual steam turbine-generators connected to pass superheat and reheat steam from a steam generator which derives heat from the coolant gas of a high temperature gas-cooled nuclear reactor is described. Associated with each turbine is a bypass line to conduct superheat steam in parallel with a high pressure turbine portion, and a bypass line to conduct superheat steam in parallel with a lower pressure turbine portion. Auxiliary steam turbines pass a portion of the steam flow to the reheater of the steam generator and drive gas blowers which circulate the coolant gas through the reactor and the steam source. Apparatus and method are disclosed for loading or unloading a turbine-generator while the other produces a steady power output. During such loading or unloading, the steam flows through the turbine portions are coordinated with the steam flows through the bypass lines for protection of the steam generator, and the pressure of reheated steam is regulated for improved performance of the gas blowers. 33 claims, 5 figures

Braytenbah, A.S.; Jaegtnes, K.O.

1977-02-15T23:59:59.000Z

203

*Revisions to POS List, i.e. updates, additions and/or deletions NILAND GAS TURBINE PLANT, DOCKET NO.O6-SPPE-1  

E-Print Network (OSTI)

*Revisions to POS List, i.e. updates, additions and/or deletions NILAND GAS TURBINE PLANT, DOCKET OF CALIFORNIA SMALL POWER PLANT EXEMPTION FOR THE NILAND GAS TURBINE PLANT DOCKET NO. 06-SPPE-1 (Imperial_hahn@urscorp.com #12;*Revisions to POS List, i.e. updates, additions and/or deletions NILAND GAS TURBINE PLANT, DOCKET

204

Examination of turbine discs from nuclear power plants  

SciTech Connect

Investigations were performed on a cracked turbine disc from the Cooper Nuclear Power Station, and on two failed turbine discs (governor and generator ends) from the Yankee-Rowe Nuclear Power Station. Cooper is a boiling water reactor (BWR) which went into commercial operation in July 1974, and Yankee-Rowe is a pressurized water reactor (PWR) which went into commercial operation in June 1961. Cracks were identified in the bore of the Cooper disc after 41,913 hours of operation, and the disc removed for repair. At Yankee-Rowe two discs failed after 100,000 hours of operation. Samples of the Cooper disc and both Yankee-Rowe disc (one from the governor and one from the generator end of the LP turbine) were sent to Brookhaven National Laboratory (BNL) for failure analysis.

Czajkowski, C.J.; Weeks, J.R.

1982-01-01T23:59:59.000Z

205

Electrical Power Grid Delivery Dynamic Analysis: Using Prime Mover Engines to Balance Dynamic Wind Turbine Output  

DOE Green Energy (OSTI)

This paper presents an investigation into integrated wind + combustion engine high penetration electrical generation systems. Renewable generation systems are now a reality of electrical transmission. Unfortunately, many of these renewable energy supplies are stochastic and highly dynamic. Conversely, the existing national grid has been designed for steady state operation. The research team has developed an algorithm to investigate the feasibility and relative capability of a reciprocating internal combustion engine to directly integrate with wind generation in a tightly coupled Hybrid Energy System. Utilizing the Idaho National Laboratory developed Phoenix Model Integration Platform, the research team has coupled demand data with wind turbine generation data and the Aspen Custom Modeler reciprocating engine electrical generator model to investigate the capability of reciprocating engine electrical generation to balance stochastic renewable energy.

Diana K. Grauer; Michael E. Reed

2011-11-01T23:59:59.000Z

206

Chemically recuperated gas turbine  

SciTech Connect

This patent describes a powerplant. It comprises: a gas turbine engine having a compressor, a combustor downstream of the compressor, a turbine, and a power turbine downstream and adjacent the turbine there being no reheating means between the turbine and power turbine; a reformer positioned downstream of the power turbine such that the output of the power turbine provides a first means for heating the reformer; a second means for heating the reformer, the second means positioned downstream of the power turbine.

Horner, M.W.; Hines, W.R.

1992-07-28T23:59:59.000Z

207

Materials review for improved automotive gas-turbine engine. Final report  

DOE Green Energy (OSTI)

Advanced materials are the key to achieving the performance and fuel economy goals of improved automotive gas turbine engines. The potential role of superalloys, refractory alloys, and ceramics in the hottest sections of future engines that may be required to operate with turbine inlet temperatures as high as 1370/sup 0/C (2500/sup 0/F) is examined. These high temperature materials are reviewed. The characteristics of the best modern conventional superalloys, directionally solidified eutectics, oxide dispersion strengthened alloys, and tungsten fiber reinforced superalloys are reviewed; and the most promising alloys in each system are compared on the basis of maximum turbine blade temperature capability. The requirements for improved high temperature protective coatings and special fabrication techniques for these advanced alloys are discussed. Chromium, columbium, molybdenum, tantalum, and tungsten alloys are reviewed. On the basis of properties, cost, availability, and strategic importance, molybdenum alloys are found to be the most suitable refractory material for turbine wheels for mass produced engines. Ceramic material candidates are reviewed and ranked according to their probability of success in particular applications. Various forms of, and fabrication processes for both silicon nitride and silicon carbide, along with SiAlON's are investigated for use in high-stress and medium-stress high temperature environments. Low-stress glass-ceramic regenerator materials are also investigated. Treatment is given to processing requirements, such as coatings for oxidation/corrosion protection, joining methods, and machining technology. Economics of ceramic raw materials, and of various processing methods are discussed. Conclusions are drawn, and recommendations for areas of further research are proposed for consideration and/or adoption.

Belleau, C.; Ehlers, W.L.; Hagen, F.A.

1978-04-01T23:59:59.000Z

208

Aero engine test experience with CMSX-4{reg_sign} alloy single-crystal turbine blades  

SciTech Connect

A team approach involving a turbine engine company (Rolls-Royce), its single-crystal casting facilities, and a superalloy developer and ingot manufacturer (Cannon-Muskegon), utilizing the concepts of simultaneous engineering, has been used to develop CMSX-4 alloy successfully for turbine blade applications. CMSX-4 alloy is a second-generation nickel-base single-crystal superalloy containing 3 percent (wt) rhenium (Re) and 70 percent volume fraction of the coherent {gamma}{prime} precipitate strengthening phase. The paper details the single-crystal casting process and heat treatment manufacturing development for turbine blades in CMSX-4 alloy. Competitive single-crystal casting yields are being achieved in production and extensive vacuum heat treatment experience confirms CMSX-4 alloy to have a practical production solution heat treat/homogenization ``window.`` The creep-rupture data-base on CMSX-4 alloy now includes 325 data points from 17 heats including 3,630 kg (8,000 lb) production size heats. An appreciable portion of this data was machined-from-blade (MFB) properties, which indicate turbine blade component capabilities based on single-crystal casting process, component configuration, and heat treatment. The use of hot isostatic pressing (HIP) has been shown to eliminate single-crystal casting micropores, which along with the essential absence of {gamma}/{gamma}{prime} eutectic phase, carbides, stable oxide, nitride and sulfide inclusions, results in remarkably high mechanical fatigue properties, with smooth and particularly notched specimens. The Re addition has been shown not only to benefit creep and mechanical fatigue strength, but also bare oxidation, hot corrosion, and coating performance. The high level of balanced properties determined by extensive laboratory evaluation has been confirmed during engine testing of the Rolls-Royce Pegasus turbofan.

Fullagar, K.P.L.; Broomfield, R.W.; Hulands, M. [Rolls-Royce PLC, Derby (United Kingdom). Aerospace Group; Harris, K.; Erickson, G.L.; Sikkenga, S.L. [Cannon-Muskegon Corp., Muskegon, MI (United States). SPS Technologies

1996-04-01T23:59:59.000Z

209

Reliability and Availability of Gas Turbines and Combined-Cycle Plants  

Science Conference Proceedings (OSTI)

High reliability, availability, and maintainability (RAM) of gas turbine plants are important attributes affecting the cost of generating electricity. RAM performance is a key indicator of the certainty that the power plant can deliver the electricity required to the grid when needed. Furthermore, events affecting reliability, availability, and starting reliability directly influence the profitability of the plant, equity return to the owner, and ultimately the price consumers pay for generation. Changes...

2008-12-01T23:59:59.000Z

210

Role of gas and steam turbines to reduce industrial plant energy costs  

SciTech Connect

Data are given to help industry select the economic fuel and economic mix of steam and gas turbines for energy-conservation measures and costs. Utilities and industrials can no longer rely on a firm supply of natural gas to fuel their boilers and turbines. The effect various liquid fuels have on gas turbine maintenance and availability is summarized. Process heat requirements per unit of power, process steam pressure, and the type of fuel will be factors in evaluating the proper mix of steam and gas turbines. The plant requirements for heat, and the availability of a reliable source of electric power will influence the amount of power (hp and kW) that can be economically generated by the industrial. (auth)

Wilson, W.B.; Hefner, W.J.

1973-11-01T23:59:59.000Z

211

Advanced turbine design for coal-fueled engines. Quarterly technical report, [July 1, 1989--September 30, 1989  

SciTech Connect

Coal-fueled gas turbines require the development of a number of new technologies which are being identified by METC and its Heat Engines Contractors. Three significant problems, that were Identified early in the development of coal-fueled engines, are the rapid wear of the turbine airfoils due to particulate erosion, the accumulation of deposits on portions of the airfoil surfaces due to slag deposition and the rapid corrosion of airfoils after the breakdown of surface coatings. The technology development study contained in this program is focused on improving the durability of the turbine through the development of erosion and deposition resistant airfoils and turbine operating conditions. The baseline turbine meanline design vas modified to prevent a local shock on the suction side of the rotor airfoil. New particle dimensionless parameters to be varied were determined. Three first-stage turbine meanline designs have been completed. The design of nev turbine airfoil shapes has been initiated. The calculation of particle trajectories has been completed for the baseline turbine vane and blade airfoils. The erosion model described in the previous technical report vas incorporated in the Post Processing Trajectory Analysis Code.

1989-12-31T23:59:59.000Z

212

Spring 2009 Engineering Our Future  

E-Print Network (OSTI)

of whirring wind turbines JeffSammons The Energy Issue: Going Green Donovan Maddox Chair Created Cash Chair and Computer Engineering. Grid-connected wind turbines, solar power plants, and other renewable sources have, to install, maintain, and repair wind turbines and related equipment. The program offers Wind Technician

Zhang, Yuanlin

213

Low Wind Speed Technology Phase I: Evaluation of Design and Construction Approaches for Economical Hybrid Steel/Concrete Wind Turbine Towers; BERGER/ABAM Engineers Inc.  

DOE Green Energy (OSTI)

This fact sheet describes a subcontract with BERGER/ABAM Engineers Inc. to study the economic feasibility of concrete and hybrid concrete/steel wind turbine towers.

Not Available

2006-03-01T23:59:59.000Z

214

Engineering Fundamentals - Nuclear Power Plant Materials, Version 2.0  

Science Conference Proceedings (OSTI)

The Engineering Fundamentals - Nuclear Power Plant Materials (EF-Materials) Version 2.0 computer-based training module provides new-hire engineering personnel with an overview of the basic concepts of nuclear power plant materials. Graphics and interactive features are used to enhance learning.EF-Materials covers the basic terms and concepts related to nuclear power plant materials and provides information about the significance of material degradation issues in nuclear power plants. ...

2012-11-30T23:59:59.000Z

215

Documentation, User Support, and Verification of Wind Turbine and Plant Models  

SciTech Connect

As part of the Utility Wind Energy Integration Group (UWIG) and EnerNex's Wind Turbine Modeling Project, EnerNex has received ARRA (federal stimulus) funding through the Department of Energy (DOE) to further the progress of wind turbine and wind plant models. Despite the large existing and planned wind generation deployment, industry-standard models for wind generation have not been formally adopted. Models commonly provided for interconnection studies are not adequate for use in general transmission planning studies, where public, non-proprietary, documented and validated models are needed. NERC MOD (North American Electric Reliability Corporation) reliability standards require that power flow and dynamics models be provided, in accordance with regional requirements and procedures. The goal of this project is to accelerate the appropriate use of generic wind turbine models for transmission network analysis by: (1) Defining proposed enhancements to the generic wind turbine model structures that would allow representation of more advanced; (2) Comparative testing of the generic models against more detailed (and sometimes proprietary) versions developed by turbine vendors; (3) Developing recommended parameters for the generic models to best mimic the performance of specific commercial wind turbines; (4) Documenting results of the comparative simulations in an application guide for users; (5) Conducting technology transfer activities in regional workshops for dissemination of knowledge and information gained, and to engage electric power and wind industry personnel in the project while underway; (6) Designing of a "living" homepage to establish an online resource for transmission planners.

Robert Zavadil; Vadim Zheglov; Yuriy Kazachkov; Bo Gong; Juan Sanchez; Jun Li

2012-09-18T23:59:59.000Z

216

Documentation, User Support, and Verification of Wind Turbine and Plant Models  

SciTech Connect

As part of the Utility Wind Energy Integration Group (UWIG) and EnerNex's Wind Turbine Modeling Project, EnerNex has received ARRA (federal stimulus) funding through the Department of Energy (DOE) to further the progress of wind turbine and wind plant models. Despite the large existing and planned wind generation deployment, industry-standard models for wind generation have not been formally adopted. Models commonly provided for interconnection studies are not adequate for use in general transmission planning studies, where public, non-proprietary, documented and validated models are needed. NERC MOD (North American Electric Reliability Corporation) reliability standards require that power flow and dynamics models be provided, in accordance with regional requirements and procedures. The goal of this project is to accelerate the appropriate use of generic wind turbine models for transmission network analysis by: (1) Defining proposed enhancements to the generic wind turbine model structures that would allow representation of more advanced; (2) Comparative testing of the generic models against more detailed (and sometimes proprietary) versions developed by turbine vendors; (3) Developing recommended parameters for the generic models to best mimic the performance of specific commercial wind turbines; (4) Documenting results of the comparative simulations in an application guide for users; (5) Conducting technology transfer activities in regional workshops for dissemination of knowledge and information gained, and to engage electric power and wind industry personnel in the project while underway; (6) Designing of a "living" homepage to establish an online resource for transmission planners.

Robert Zavadil; Vadim Zheglov; Yuriy Kazachkov; Bo Gong; Juan Sanchez; Jun Li

2012-09-18T23:59:59.000Z

217

Aging of turbine drives for safety-related pumps in nuclear power plants  

SciTech Connect

This study was performed to examine the relationship between time-dependent degradation and current industry practices in the areas of maintenance, surveillance, and operation of steam turbine drives for safety-related pumps. These pumps are located in the Auxiliary Feedwater (AFW) system for pressurized-water reactor plants and in the Reactor Core Isolation Cooling and High-Pressure Coolant Injection systems for boiling-water reactor plants. This research has been conducted by examination of failure data in the Nuclear Plant Reliability Data System, review of Licensee Event Reports, discussion of problems with operating plant personnel, and personal observation. The reported failure data were reviewed to determine the cause of the event and the method of discovery. Based on the research results, attempts have been made to determine the predictability of failures and possible preventive measures that may be implemented. Findings in a recent study of AFW systems indicate that the turbine drive is the single largest contributor to AFW system degradation. However, examination of the data shows that the turbine itself is a reliable piece of equipment with a good service record. Most of the problems documented are the result of problems with the turbine controls and the mechanical overspeed trip mechanism; these apparently stem from three major causes which are discussed in the text. Recent improvements in maintenance practices and procedures, combined with a stabilization of the design, have led to improved performance resulting in a reliable safety-related component. However, these improvements have not been universally implemented.

Cox, D.F. [Oak Ridge National Lab., TN (United States)

1995-06-01T23:59:59.000Z

218

DADICC: Intelligent system for anomaly detection in a combined cycle gas turbine plant  

Science Conference Proceedings (OSTI)

DADICC is the abbreviated name for an intelligent system able to detect on-line and diagnose anomalies as soon as possible in the dynamic evolution of the behaviour of a power plant based on a combined cycle gas turbine. In order to reach this objective, ... Keywords: Anomaly detection, Diagnosis, Expert system, Multi-agent system, Neural network, Normal behaviour

Antonio Arranz; Alberto Cruz; Miguel A. Sanz-Bobi; Pablo Ruíz; Josué Coutiño

2008-05-01T23:59:59.000Z

219

Architecting a plug-in based steam turbine design tool  

Science Conference Proceedings (OSTI)

At a leading manufacturer of equipment for power generation, the engineers currently design a steam turbine, a key component of a power plant, using a large number of disjoint legacy tools written mostly in Fortran; These tools encapsulate significant ... Keywords: dynamic graph, eclipse rcp, osgi, turbine engineering

Stefanos Zachariadis; Tim Cianchi

2011-05-01T23:59:59.000Z

220

Apparatus and filtering systems relating to combustors in combustion turbine engines  

DOE Patents (OSTI)

A combustor for a combustion turbine engine, the combustor that includes: a chamber defined by an outer wall and forming a channel between windows defined through the outer wall toward a forward end of the chamber and at least one fuel injector positioned toward an aft end of the chamber; a screen; and a standoff comprising a raised area on an outer surface of the outer wall near the periphery of the windows; wherein the screen extends over the windows and is supported by the standoff in a raised position in relation to the outer surface of the outer wall and the windows.

Johnson, Thomas Edward (Greer, SC); Zuo, Baifang (Simpsonville, SC); Stevenson, Christian Xavier (Inman, SC)

2012-07-24T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Closed Dual Fluid Gas Turbine Power Plant Without Emission Of Co  

E-Print Network (OSTI)

. This paper describes a construction and characteristics of a coal-gas-burning high eciency power plant which emits no carbon dioxide (CO 2 ) into the atmosphere. In the plant, CO 2 gas and superheated steam are used as the main and sub working uid, respectively, of a closed dual uid gas turbine power generation system. It is assumed that a coal gas whose principal compositions are CO, H2 , CO2 and CH4 is burnt in a combustor using oxygen, and that CO 2 gas and superheated steam are used as the main and sub working uid of a turbine, respectively. Consequently, the constituent gases of the combustion gas become CO2 and H2O. Thus, CO2 gas included in the exhaust gas can be easily separated at the condenser outlet from the condensate (H2O). Most of recovered CO 2 is recycled as the main working uid of the turbine. In the plant, high-temperature turbine exhaust gas is utilized in a waste heat boiler to produce superheated steam which is injected into the combustor in order to improve...

Into The Atmosphere; P. S. Pak; K. Nakamura; Y. Suzuki

1989-01-01T23:59:59.000Z

222

Power plant and system for accelerating a cross compound turbine in such plant, especially one having an HTGR steam supply  

SciTech Connect

An electric power plant having a cross compound steam turbine and a steam source that includes a high temperature gas-cooled nuclear reactor is described. The steam turbine includes high and intermediate-pressure portions which drive a first generating means, and a low-pressure portion which drives a second generating means. The steam source supplies superheat steam to the high-pressure turbine portion, and an associated bypass permits the superheat steam to flow from the source to the exhaust of the high-pressure portion. The intermediate and low-pressure portions use reheat steam; an associated bypass permits reheat steam to flow from the source to the low-pressure exhaust. An auxiliary turbine driven by steam exhausted from the high-pressure portion and its bypass drives a gas blower to propel the coolant gas through the reactor. While the bypass flow of reheat steam is varied to maintain an elevated pressure of reheat steam upon its discharge from the source, both the first and second generating means and their associated turbines are accelerated initially by admitting steam to the intermediate and low-pressure portions. The electrical speed of the second generating means is equalized with that of the first generating means, whereupon the generating means are connected and acceleration proceeds under control of the flow through the high-pressure portion. 29 claims, 2 figures.

Jaegtnes, K.O.; Braytenbah, A.S.

1977-02-15T23:59:59.000Z

223

Heat Exchanger Design for Solar Gas-Turbine Power Plant.  

E-Print Network (OSTI)

?? The aim of this project is to select appropriate heat exchangers out of available gas-gas heat exchangers for used in a proposed power plant.… (more)

Yakah, Noah

2012-01-01T23:59:59.000Z

224

ODC/EPA 17 elimination from DOD technical data and gas turbine engines  

SciTech Connect

In response to the 1990 Clean Air Act Amendments, DOD and USAF policy, the Environment Systems Division of the Human Systems Program Office, Human Systems Center, Brooks AFB TX has developed a program to systematically eliminate references to particularly active Class I Ozone Depleting Chemicals (ODC) from gas turbine engine technical data. Additionally, Executive Order 12856 and subsequent DOD directives drive the reduction in volume usage of Environmental Protection Agency (EPA) 17 toxins. Program scope includes the validation of requirements for usage, examination of commercially available alternatives, identification of solutions implemented by manufacturers, and qualification of potential alternatives where necessary. Technical and management approaches are discussed. In response to the 1990 Clean Air Act Amendments, DOD and USAF policy, the Environment Systems Division of the Human Systems Program Office, Human Systems Center, Brooks AFB TX has developed a program to systematically eliminate references to particularly active Class I Ozone Depleting Chemicals (ODC) from gas turbine engine technical data. Additionally, Executive Order 12856 and subsequent DOD directives drive the reduction in volume usage of Environmental Protection Agency (EPA) 17 toxins. Program scope includes the validation of requirements for usage, examination of commercially available alternatives, identification of solutions implemented by manufacturers, and qualification of potential alternatives where necessary. Technical and management approaches are discussed.

Manty, B.A.; McCall, M.P.; DeGarmo, L.A.

1995-08-01T23:59:59.000Z

225

Advanced turbine design for coal-fueled engines. Topical report, Task 1.6, Task 1.7  

DOE Green Energy (OSTI)

The objective of this task is to perform a technical assessment of turbine blading for advanced second generation PFBC conditions, identify specific problems/issues, and recommend an approach for solving any problems identified. A literature search was conducted, problems associated with hot corrosion defined and limited experiments performed. Sulfidation corrosion occurs in industrial, marine and aircraft gas turbine engines and is due to the presence of condensed alkali (sodium) sulfates. The principle source of the alkali in industrial, marine and aircraft gas turbine engines is sea salt crystals. The principle source of the sulfur is not the liquid fuels, but the same ocean born crystals. Moreover deposition of the corrosive salt occurs primarily by a non-equilibrium process. Sodium will be present in the cleaned combusted gases that enter the PFBC turbine. Although equilibrium condensation is not favored, deposition via impaction is probable. Marine gas turbines operate in sodium chloride rich environments without experiencing the accelerated attack noted in coal fired boilers where condensed chlorides contact metallic surfaces. The sulfates of calcium and magnesium are the products of the reactions used to control sulfur. Based upon industrial gas turbine experience and laboratory tests, calcium and magnesium sulfates are, at temperatures up to 1500{degrees}F (815{degrees}C), relatively innocuous salts. In this study it is found that at 1650{degrees}F (900{degrees}C) and above, calcium sulfate becomes an aggressive corrodent.

Bornstein, N.S.

1992-07-17T23:59:59.000Z

226

Advanced turbine design for coal-fueled engines. Phase 1, Erosion of turbine hot gas path blading: Final report  

SciTech Connect

The investigators conclude that: (1) Turbine erosion resistance was shown to be improved by a factor of 5 by varying the turbine design. Increasing the number of stages and increasing the mean radius reduces the peak predicted erosion rates for 2-D flows on the blade airfoil from values which are 6 times those of the vane to values of erosion which are comparable to those of the vane airfoils. (2) Turbine erosion was a strong function of airfoil shape depending on particle diameter. Different airfoil shapes for the same turbine operating condition resulted in a factor of 7 change in airfoil erosion for the smallest particles studied (5 micron). (3) Predicted erosion for the various turbines analyzed was a strong function of particle diameter and weaker function of particle density. (4) Three dimensional secondary flows were shown to cause increases in peak and average erosion on the vane and blade airfoils. Additionally, the interblade secondary flows and stationary outer case caused unique erosion patterns which were not obtainable with 2-D analyses. (5) Analysis of the results indicate that hot gas cleanup systems are necessary to achieve acceptable turbine life in direct-fired, coal-fueled systems. In addition, serious consequences arise when hot gas filter systems fail for even short time periods. For a complete failure of the filter system, a 0.030 in. thick corrosion-resistant protective coating on a turbine blade would be eroded at some locations within eight minutes.

Wagner, J.H.; Johnson, B.V.

1993-04-01T23:59:59.000Z

227

Gas turbine engine adapted for use in combination with an apparatus for separating a portion of oxygen from compressed air  

SciTech Connect

A gas turbine engine is provided comprising an outer shell, a compressor assembly, at least one combustor assembly, a turbine assembly and duct structure. The outer shell includes a compressor section, a combustor section, an intermediate section and a turbine section. The intermediate section includes at least one first opening and at least one second opening. The compressor assembly is located in the compressor section to define with the compressor section a compressor apparatus to compress air. The at least one combustor assembly is coupled to the combustor section to define with the combustor section a combustor apparatus. The turbine assembly is located in the turbine section to define with the turbine section a turbine apparatus. The duct structure is coupled to the intermediate section to receive at least a portion of the compressed air from the compressor apparatus through the at least one first opening in the intermediate section, pass the compressed air to an apparatus for separating a portion of oxygen from the compressed air to produced vitiated compressed air and return the vitiated compressed air to the intermediate section via the at least one second opening in the intermediate section.

Bland, Robert J. (Oviedo, FL); Horazak, Dennis A. (Orlando, FL)

2012-03-06T23:59:59.000Z

228

Utility Advanced Turbine Systems program (ATS) technical readiness testing and pre-commercial demonstration. Annual report, October 30, 1995--September 30, 1996  

DOE Green Energy (OSTI)

Progress is reported on an advanced turbine engine design. The design features a closed loop cooling system. Activities for power plant design were initiated.

NONE

1998-12-31T23:59:59.000Z

229

Combined cycle electric power plant with a steam turbine having a sliding pressure main bypass and control valve system  

SciTech Connect

A combined cycle electric power plant includes two gas turbines, a steam turbine, and a digital control system with an operator analog or manual backup. Each of the gas turbines has an exhaust heat recovery steam generator connected to a common header from which the steam is supplied by one or both of the steam generators for operating the steam turbine. The control system is of the sliding pressure type and maintains a predetermined steam pressure as a function of steam flow according to a predetermined characterization depending on the number of steam generators in service to limit the maximum steam velocity through the steam generators, and reduce the probability of water carryover into the steam turbine. Such control is always maintained by the bypass valve. The turbine control valve responds to the speed/load demand only, except when the bypass valve is closed and the rate of steam generation is insufficient to maintain a predetermined pressure flow relationship.

Uram, R.

1980-05-06T23:59:59.000Z

230

Optimizing Dam Operations for Power and for Fish: an Overview of the US Department of Energy and US Army Corps of Engineers ADvanced Turbine Development R&D. A Pre-Conference Workshop at HydroVision 2006, Oregon Convention Center, Portland, Oregon July 31, 2006  

DOE Green Energy (OSTI)

This booklet contains abstracts of presentations made at a preconference workshop on the US Department of Energy and US Army Corps of Engineers hydroturbine programs. The workshop was held in conjunction with Hydrovision 2006 July 31, 2006 at the Oregon Convention Center in Portland Oregon. The workshop was organized by the Corps of Engineers, PNNL, and the DOE Wind and Hydropower Program. Presenters gave overviews of the Corps' Turbine Survival Program and the history of the DOE Advanced Turbine Development Program. They also spoke on physical hydraulic models, biocriteria for safe fish passage, pressure investigations using the Sensor Fish Device, blade strike models, optimization of power plant operations, bioindex testing of turbine performance, approaches to measuring fish survival, a systems view of turbine performance, and the Turbine Survival Program design approach.

Dauble, Dennis D.

2006-08-01T23:59:59.000Z

231

SOME SPECIAL APPLICATIONS OF WELDING IN STEAM, GAS TURBINE, AND NUCLEAR POWER PLANTS  

SciTech Connect

Six special applications of welding in steam, gasturbine, and nuclear power plants are described. Experiences are quoted of: the welding of austenittc steel gas-turbine rotors; the butt welding of heat-exchanger tubes in dissimilar metals; the welding of steam pipes for advanced steam conditions; welding in relation to feedwater heaters; the construction of expansion bellows in alloy steels; and the attachment of fins to heat-exchanger tubes. (auth)

Robertson, J.M.

1961-10-01T23:59:59.000Z

232

LED-induced fluorescence diagnostics for turbine and combustion engine thermometry  

DOE Green Energy (OSTI)

Fluorescence from phosphor coatings is the basis of an established technique for measuring temperature in a wide variety of turbine and combustion engine applications. Example surfaces include blades, vanes, combustors, intake valves, pistons, and rotors. Many situations that are remote and noncontact require the high intensity of a laser to illuminate the phosphor, especially if the surface is moving. Thermometric resolutions of 0.1 C are obtainable, and some laboratory versions of these systems have been calibrated against NIST standards to even higher precision. To improve the measurement signal-to-noise ratio, synchronous detection timing has been used to repeatedly interrogate the same blade in a high speed rotating turbine. High spatial resolution can be obtained by tightly focusing the interrogation beam in measurements of static surfaces, and by precise differential timing of the laser pulses on rotating surfaces. We report here the use of blue light emitting diodes (LEDs) as a n illumination source for producing useable fluorescence from phosphors for temperature measurements. An LED can excite most of the same phosphors used to cover the temperature range from 8 to 1400 C. The advantages of using LEDs are obvious in terms of size, power requirements, space requirements and cost. There can also be advantages associated with very long operating lifetimes, wide range of available colors, and their broader emission bandwidths as compared to laser diodes. Temperature may be inferred either from phase or time-decay determinations.

Allison, S.W.

2001-08-17T23:59:59.000Z

233

ADVANCED TURBINE SYSTEMS PROGRAM  

SciTech Connect

Natural gas combustion turbines are rapidly becoming the primary technology of choice for generating electricity. At least half of the new generating capacity added in the US over the next twenty years will be combustion turbine systems. The Department of Energy has cosponsored with Siemens Westinghouse, a program to maintain the technology lead in gas turbine systems. The very ambitious eight year program was designed to demonstrate a highly efficient and commercially acceptable power plant, with the ability to fire a wide range of fuels. The main goal of the Advanced Turbine Systems (ATS) Program was to develop ultra-high efficiency, environmentally superior and cost effective competitive gas turbine systems for base load application in utility, independent power producer and industrial markets. Performance targets were focused on natural gas as a fuel and included: System efficiency that exceeds 60% (lower heating value basis); Less than 10 ppmv NO{sub x} emissions without the use of post combustion controls; Busbar electricity that are less than 10% of state of the art systems; Reliability-Availability-Maintainability (RAM) equivalent to current systems; Water consumption minimized to levels consistent with cost and efficiency goals; and Commercial systems by the year 2000. In a parallel effort, the program was to focus on adapting the ATS engine to coal-derived or biomass fuels. In Phase 1 of the ATS Program, preliminary investigators on different gas turbine cycles demonstrated that net plant LHV based efficiency greater than 60% was achievable. In Phase 2 the more promising cycles were evaluated in greater detail and the closed-loop steam-cooled combined cycle was selected for development because it offered the best solution with least risk for achieving the ATS Program goals for plant efficiency, emissions, cost of electricity and RAM. Phase 2 also involved conceptual ATS engine and plant design and technology developments in aerodynamics, sealing, combustion, cooling, materials, coatings and casting development. The market potential for the ATS gas turbine in the 2000-2014 timeframe was assessed for combined cycle, simple cycle and integrated gasification combined cycle, for three engine sizes. The total ATS market potential was forecasted to exceed 93 GW. Phase 3 and Phase 3 Extension involved further technology development, component testing and W501ATS engine detail design. The technology development efforts consisted of ultra low NO{sub x} combustion, catalytic combustion, sealing, heat transfer, advanced coating systems, advanced alloys, single crystal casting development and determining the effect of steam on turbine alloys. Included in this phase was full-load testing of the W501G engine at the McIntosh No. 5 site in Lakeland, Florida.

Gregory Gaul

2004-04-21T23:59:59.000Z

234

Steam Turbine Materials for Ultrasupercritical Coal Power Plants  

Science Conference Proceedings (OSTI)

Lack of materials with the necessary fabricability and resistance to creep, oxidation, corrosion, and fatigue at the higher steam temperatures and pressures currently limits adoption of advanced ultra supercritical (USC) steam conditions in pulverized coal-fired plants. A major five-year national effort sponsored by the Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) to develop materials for USC boilers for operation at 760C (1400F), 35 MPa (5000 psi) has been in progress and is be...

2007-06-20T23:59:59.000Z

235

Combustor assembly for use in a turbine engine and methods of assembling same  

SciTech Connect

A fuel nozzle assembly for use with a turbine engine is described herein. The fuel nozzle assembly includes a plurality of fuel nozzles positioned within an air plenum defined by a casing. Each of the plurality of fuel nozzles is coupled to a combustion liner defining a combustion chamber. Each of the plurality of fuel nozzles includes a housing that includes an inner surface that defines a cooling fluid plenum and a fuel plenum therein, and a plurality of mixing tubes extending through the housing. Each of the mixing tubes includes an inner surface defining a flow channel extending between the air plenum and the combustion chamber. At least one mixing tube of the plurality of mixing tubes including at least one cooling fluid aperture for channeling a flow of cooling fluid from the cooling fluid plenum to the flow channel.

Uhm, Jong Ho; Johnson, Thomas Edward

2013-05-14T23:59:59.000Z

236

Steam Turbine Materials for Ultrasupercritical Coal Power Plants  

Science Conference Proceedings (OSTI)

Lack of materials that can be readily fabricated and that are resistant to creep, oxidation, corrosion, and fatigue at higher steam temperatures and pressures limits adoption of advanced ultrasupercritical (USC) steam conditions in pulverized coal-fired plants. An ongoing major five-year national effort8212sponsored by the U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO)8212to develop materials for USC boilers for operation at 760C (1400F), 35 MPa (5000 psi) is being carried ou...

2008-03-04T23:59:59.000Z

237

System study of an MHD/gas turbine combined-cycle baseload power plant. HTGL report No. 134  

DOE Green Energy (OSTI)

The MHD/gas turbine combined-cycle system has been designed specifically for applications where the availability of cooling water is very limited. The base case systems which were studied consisted of an MHD plant with a gas turbine bottoming plant, and required no cooling water. The gas turbine plant uses only air as its working fluid and receives its energy input from the MHD exhaust gases by means of metal tube heat exchangers. In addition to the base case systems, vapor cycle variation systems were considered which included the addition of a vapor cycle bottoming plant to improve the thermal efficiency. These systems required a small amount of cooling water. The MHD/gas turbine systems were modeled with sufficient detail, using realistic component specifications and costs, so that the thermal and economic performance of the system could be accurately determined. Three cases of MHD/gas turbine systems were studied, with Case I being similar to an MHD/steam system so that a direct comparison of the performances could be made, with Case II being representative of a second generation MHD system, and with Case III considering oxygen enrichment for early commercial applications. The systems are nominally 800 MW/sub e/ to 1000 MW/sub e/ in size. The results show that the MHD/gas turbine system has very good thermal and economic performances while requiring either little or no cooling water. Compared to the MHD/steam system which has a cooling tower heat load of 720 MW, the Base Case I MHD/gas turbine system has a heat rate which is 13% higher and a cost of electricity which is only 7% higher while requiring no cooling water. Case II results show that an improved performance can be expected from second generation MHD/gas turbine systems. Case III results show that an oxygen enriched MHD/gas turbine system may be attractive for early commercial applications in dry regions of the country.

Annen, K.D.

1981-08-01T23:59:59.000Z

238

Operation and Performance of a Biphase Turbine Power Plant at the Cerro Prieto Geothermal Field (Final Report)  

DOE Green Energy (OSTI)

A full scale, wellhead Biphase turbine was manufactured and installed with the balance of plant at Well 103 of the Cerro Prieto geothermal resource in Baja, California. The Biphase turbine was first synchronized with the electrical grid of Comision Federal de Electricidad on August 20, 1997. The Biphase power plant was operated from that time until May 23, 2000, a period of 2 years and 9 months. A total of 77,549 kWh were delivered to the grid. The power plant was subsequently placed in a standby condition pending replacement of the rotor with a newly designed, higher power rotor and replacement of the bearings and seals. The maximum measured power output of the Biphase turbine, 808 kWe at 640 psig wellhead pressure, agreed closely with the predicted output, 840 kWe. When combined with the backpressure steam turbine the total output power from that flow would be increased by 40% above the power derived only from the flow by the present flash steam plant. The design relations used to predict performance and design the turbine were verified by these tests. The performance and durability of the Biphase turbine support the conclusion of the Economics and Application Report previously published, (Appendix A). The newly designed rotor (the Dual Pressure Rotor) was analyzed for the above power condition. The Dual Pressure Rotor would increase the power output to 2064 kWe by incorporating two pressure letdown stages in the Biphase rotor, eliminating the requirement for a backpressure steam turbine. The power plant availability was low due to deposition of solids from the well on the Biphase rotor and balance of plant problems. A great deal of plant down time resulted from the requirement to develop methods to handle the solids and from testing the apparatus in the Biphase turbine. Finally an online, washing method using the high pressure two-phase flow was developed which completely eliminated the solids problem. The availability of the Biphase turbine itself was 100% after implementations of this method in March 2000. However, failures of instrumentation and control system components led to additional plant down time and damage to the bearings and seals. The enthalpy and pressure of well 103 declined substantially from the inception of the project. When the project was started the wellhead pressure and enthalpy were 760 psig and 882 Btu/lb respectively. At the time the plant was placed in standby the corresponding values were only 525 psig and 658 Btu/lb. This reduced the available plant power to only 400 kWe making the project economically unfeasible. However, replacement of the existing rotor with the Dual Pressure Rotor and replacement of the bearings and seals will enable the existing Biphase turbine to produce 1190 kWe at the present well conditions without the backpressure steam turbine. Operation with the present staff can then be sustained by selling power under the existing Agreement with CFE. Implementation of this option is recommended with operation of the facility to continue as a demonstration plant. Biphase turbine theory, design and performance are reported herein. The construction of the Biphase turbine and power plant and operational experience are detailed. Improvements in the Biphase turbine are indicated and analyzed. The impact of Biphase techonology on geothermal power production is discussed and recommendations made.

Hays, Lance G. [Douglas Energy Company, Placentia, CA (United States)

2000-09-01T23:59:59.000Z

239

Modeling of Proposed Changes to SIUC Central Heating, Air-Conditioning, and Power Plant Incorporating Variable Frequency Drive (VFD) and High Efficiency Turbine.  

E-Print Network (OSTI)

??Currently, the Southern Illinois University Carbondale (SIUC) power plant produces steam at high pressure to drive a high pressure (HP) turbine to make a portion… (more)

Su, Heyin

2011-01-01T23:59:59.000Z

240

Emissions data for stationary reciprocating engines and gas turbines in use by the gas pipeline transmission industry  

SciTech Connect

A.G.A. Project PR-15-613, conducted under the sponsorship of the Pipeline Committee (PRC), involved two phases. This final report for the overall project combines both of the separate phase reports into a single document. The project was entitled ''Compilation of Emissions Data for Stationary Reciprocating Engines and Gas Turbines in Use by the Gas Pipeline Transmission Industry (Update).'' The purpose of this project was to update the 1980 edition of the Compilation of Emissions Data. Phase I involved collection of emissions data from companies in the natural gas industry and from gas engine manufacturers and recommending engine and gas turbine models for testing under Phase II. Phase I was completed in March 1987 and the findings and recommendations were included in an interim report. Phase II involved emissions testing of a number of reciprocating engines and gas turbines. Phase II was completed in April 1988 and the findings are included in this project final report. 9 refs., 5 tabs.

Fanick, E.R.; Dietzmann, H.E.; Urban, C.M.

1988-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
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241

Steam-injected gas turbines uneconomical with coal gasification equipment  

SciTech Connect

Researchers at the Electric Power Research Institute conducted a series of engineering and economic studies to assess the possibility of substituting steam-injected gas (STIG) turbines for the gas turbines currently proposed for use in British Gas Corporation (BGC)/Lurgi coal gasification-combined cycle plants. The study sought to determine whether steam-injected gas turbines and intercooled steam-injected gas turbines, as proposed by General Electric would be economically competitive with conventional gas and steam turbines when integrated with coal gasification equipment. The results are tabulated in the paper.

1986-09-01T23:59:59.000Z

242

Descriptions of Past Research in Program 80: New Combustion Turbine/Combined-Cycle Plant Design and Technology Selection  

Science Conference Proceedings (OSTI)

BackgroundAt a time when the power industry needs to meet growing demand and capacity requirements, informed decisions on gas turbine selection and plant designs are especially important. Technology selection impacts efficiency, emissions, availability, maintainability, and durability. Flexible operational capabilities are needed for plant dispatch, and planners need to understand upcoming trends and potential improvements for future growth.The Electric Power ...

2012-09-19T23:59:59.000Z

243

Solid oxide fuel cell/gas turbine power plant cycles and performance estimates  

DOE Green Energy (OSTI)

SOFC pressurization enhances SOFC efficiency and power performance. It enables the direct integration of the SOFC and gas turbine technologies which can form the basis for very efficient combined- cycle power plants. PSOFC/GT cogeneration systems, producing steam and/or hot water in addition to electric power, can be designed to achieve high fuel effectiveness values. A wide range of steam pressures and temperatures are possible owing to system component arrangement flexibility. It is anticipated that Westinghouse will offer small PSOFC/GT power plants for sale early in the next decade. These plants will have capacities less than 10 MW net ac, and they will operate with efficiencies in the 60-65% (net ac/LHV) range.

Lundberg, W.L.

1996-12-31T23:59:59.000Z

244

Gas Turbines Increase the Energy Efficiency of Industrial Processes  

E-Print Network (OSTI)

It is a well known fact that the gas turbine in a combined cycle has a higher inherent Carnot efficiency than the steam cycle which has been more generally accepted by industry. Unlike steam turbines, gas turbines do not require large boiler feed water, condensate and cooling water facilities. The benefits of the high efficiency of combined cycle gas turbines can only be realized if the energy in the hot exhaust can be utilized. Data for several plants, in various stages of engineering, in which clean fuel gas for the gas turbine is produced by gasification of coal, are presented. Waste heat from the gasifier and the gas turbine exhaust is converted to high pressure steam for steam turbines. Gas turbines may find application in other industrial processes, namely in the production of ammonia, LNG, and olefins. These options are briefly discussed.

Banchik, I. N.; Bohannan, W. R.; Stork, K.; McGovern, L. J.

1981-01-01T23:59:59.000Z

245

Impact of Fuel Interchangeability on dynamic Instabilities in Gas Turbine Engines  

SciTech Connect

Modern, low NOx emitting gas turbines typically utilize lean pre-mixed (LPM) combustion as a means of achieving target emissions goals. As stable combustion in LPM systems is somewhat intolerant to changes in operating conditions, precise engine tuning on a prescribed range of fuel properties is commonly performed to avoid dynamic instabilities. This has raised concerns regarding the use of imported liquefied natural gas (LNG) and natural gas liquids (NGL’s) to offset a reduction in the domestic natural gas supply, which when introduced into the pipeline could alter the fuel BTU content and subsequently exacerbate problems such as combustion instabilities. The intent of this study is to investigate the sensitivity of dynamically unstable test rigs to changes in fuel composition and heat content. Fuel Wobbe number was controlled by blending methane and natural gas with various amounts of ethane, propane and nitrogen. Changes in combustion instabilities were observed, in both atmospheric and pressurized test rigs, for fuels containing high concentrations of propane (> 62% by vol). However, pressure oscillations measured while operating on typical “LNG like” fuels did not appear to deviate significantly from natural gas and methane flame responses. Mechanisms thought to produce changes in the dynamic response are discussed.

Ferguson, D.H.; Straub, D.L.; Richards, G.A.; Robey, E.H.

2007-03-01T23:59:59.000Z

246

Apparatus and filtering systems relating to combustors in combustion turbine engines  

DOE Patents (OSTI)

A combustor for a combustion turbine engine that includes: a chamber defined by an outer wall and forming a channel between windows defined through the outer wall toward a forward end of the chamber and at least one fuel injector positioned toward an aft end of the chamber; and a multilayer screen filter comprising at least two layers of screen over at least a portion of the windows and at least one layer of screen over the remaining portion of the windows. The windows include a forward end and a forward portion, and an aft end and an aft portion. The multilayer screen filter is positioned over the windows such that, in operation, a supply of compressed air entering the chamber through the windows passes through at least one layer of screen. The multilayer screen filter is configured such that the aft portion of the windows include at least two layers of screen, and the forward portion of the windows includes one less layer of screen than the aft portion of the windows.

Johnson, Thomas Edward (Greer, SC); Zuo, Baifang (Simpsonville, SC); Stevenson, Christian Xavier (Inman, SC)

2012-03-27T23:59:59.000Z

247

Combined cycle electric power plant having a control system which enables dry steam generator operation during gas turbine operation  

SciTech Connect

A control system for a combined cycle electric power plant is described. It contains: at least one gas turbine including an exit through which heated exhaust gases pass; means for generating steam coupled to said gas turbine exit for transferring heat from the exhaust gases to a fluid passing through the steam generator; a steam turbine coupled to the steam generator and driven by the steam supplied thereby; means for generating electric power by the driving power of the turbines; condenser means for receiving and converting the spent steam from the steam turbine into condensate; and steam generating means comprising a low pressure storage tank, a first heat exchange tube, a boiler feedwater pump for directing fluid from a low pressure storage tank through the first heat exchange tube, a main storage drum, a second heat exchange tube, and a high pressure recirculation pump for directing fluid from the main storage pump through the second heat exchange tube. The control system monitors the temperature of the exhaust gas turbine gases as directed to the steam generator and deactuates the steam turbine when a predetermined temperature is exceeded.

Martz, L.F.; Plotnick, R.J.

1974-08-08T23:59:59.000Z

248

Incorporating supercritical steam turbines into molten-salt power tower plants : feasibility and performance.  

SciTech Connect

Sandia National Laboratories and Siemens Energy, Inc., examined 14 different subcritical and supercritical steam cycles to determine if it is feasible to configure a molten-salt supercritical steam plant that has a capacity in the range of 150 to 200 MWe. The effects of main steam pressure and temperature, final feedwater temperature, and hot salt and cold salt return temperatures were determined on gross and half-net efficiencies. The main steam pressures ranged from 120 bar-a (subcritical) to 260 bar-a (supercritical). Hot salt temperatures of 566 and 600%C2%B0C were evaluated, which resulted in main steam temperatures of 553 and 580%C2%B0C, respectively. Also, the effects of final feedwater temperature (between 260 and 320%C2%B0C) were evaluated, which impacted the cold salt return temperature. The annual energy production and levelized cost of energy (LCOE) were calculated using the System Advisory Model on 165 MWe subcritical plants (baseline and advanced) and the most promising supercritical plants. It was concluded that the supercritical steam plants produced more annual energy than the baseline subcritical steam plant for the same-size heliostat field, receiver, and thermal storage system. Two supercritical steam plants had the highest annual performance and had nearly the same LCOE. Both operated at 230 bar-a main steam pressure. One was designed for a hot salt temperature of 600%C2%B0C and the other 565%C2%B0C. The LCOEs for these plants were about 10% lower than the baseline subcritical plant operating at 120 bar-a main steam pressure and a hot salt temperature of 565%C2%B0C. Based on the results of this study, it appears economically and technically feasible to incorporate supercritical steam turbines in molten-salt power tower plants.

Pacheco, James Edward; Wolf, Thorsten [Siemens Energy, Inc., Orlando, FL; Muley, Nishant [Siemens Energy, Inc., Orlando, FL

2013-03-01T23:59:59.000Z

249

Computer-Aided Design Reveals Potential of Gas Turbine Cogeneration in Chemical and Petrochemical Plants  

E-Print Network (OSTI)

Gas turbine cogeneration cycles provide a simple and economical solution to the problems created by rising fuel and electricity costs. These cycles can be designed to accommodate a wide range of electrical, steam, and process heating demands. The optimum cycle is typically based on an analysis of the plant's electrical / steam / process heating requirements, an evaluation of the potential for selling to or permit wheeling by utilities of electrical power under PURPA guidelines, and application of pertinent investment decision criteria. The study that identifies the best solution to the problem must contain sufficient detail to support a plan of action by management. This paper addresses how computer-aided design techniques support the effort necessary to fully evaluate several alternative cycle designs in a short time frame. It includes examples for a new power unit as well as for cycles which require modifications to existing process and steam generating equipment in a medium-sized chemical plant.

Nanny, M. D.; Koeroghlian, M. M.; Baker, W. J.

1984-01-01T23:59:59.000Z

250

Dynamic Analysis of Electrical Power Grid Delivery: Using Prime Mover Engines to Balance Dynamic Wind Turbine Output  

DOE Green Energy (OSTI)

This paper presents an investigation into integrated wind + combustion engine high penetration electrical generation systems. Renewable generation systems are now a reality of electrical transmission. Unfortunately, many of these renewable energy supplies are stochastic and highly dynamic. Conversely, the existing national grid has been designed for steady state operation. The research team has developed an algorithm to investigate the feasibility and relative capability of a reciprocating internal combustion engine to directly integrate with wind generation in a tightly coupled Hybrid Energy System. Utilizing the Idaho National Laboratory developed Phoenix Model Integration Platform, the research team has coupled demand data with wind turbine generation data and the Aspen Custom Modeler reciprocating engine electrical generator model to investigate the capability of reciprocating engine electrical generation to balance stochastic renewable energy.

Diana K. Grauer

2011-10-01T23:59:59.000Z

251

Meiden Plant and Engineering Construction Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Meiden Plant and Engineering Construction Co Ltd Meiden Plant and Engineering Construction Co Ltd Jump to: navigation, search Name Meiden Plant and Engineering Construction Co Ltd Place Tokyo, Tokyo, Japan Zip 141-8616 Sector Hydro, Solar, Wind energy Product Meiden Plant and Engineering is a Meidensha Corp's affiliated company responsible for project management and construction of generation systems by solar, wind, microhydroelectric and cogeneration. Coordinates 35.670479°, 139.740921° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.670479,"lon":139.740921,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

252

Plant Engineering: Thermal Performance Engineering Handbook, Volume 1: Supersedes TR 107422-V1  

Science Conference Proceedings (OSTI)

This report describes the essential elements of a thermal performance program at a nuclear power station, providing guidance for plants establishing a new program or seeking to make improvements to an existing program. It focuses on the roles and responsibilities of a thermal performance engineer and how this individual interacts with other site organizations. The report looks at core tasks the thermal performance engineer performs, including development and use of performance curves and ...

2013-12-13T23:59:59.000Z

253

Plant Engineering: Thermal Performance Engineering Handbook, Volume 2 Subtitle: Supersedes TR-107422- V2  

Science Conference Proceedings (OSTI)

This handbook provides guidance to assist the thermal performance engineer in identifying and investigating the cause of megawatt electric (MWe) losses as well as in proposing new ways to increase MWe output. This guide provides detailed descriptions of the components in the nuclear plant heat cycle. Its use will assist thermal performance engineers. It can be used for the development or validation of data collection and use in monitoring of the major components of the heat cycle. It should be used ...

2013-05-14T23:59:59.000Z

254

Engineering Plant One-Carbon Metabolism  

Science Conference Proceedings (OSTI)

Primary and secondary metabolism intersect in the one-carbon (C1) area. Primary metabolism supplies most of the C1 units and competes with secondary metabolism for their use. This competition is potentially severe because secondary products such as lignin, alkaloids, and glycine betaine (GlyBet) require massive amounts of C1 units. Towards the goal of understanding how C1 metabolism is regulated at the metabolic and gene levels so as to successfully engineer C1 supply to match demand, we have: (1) cloned complete suites of C1 genes from maize and tobacco, and incorporated them into DNA arrays; (2) prepared antisense constructs and mutants engineered with alterations in C1 unit supply and demand; and (3) have quantified the impacts of these alterations on gene expression (using DNA arrays), and on metabolic fluxes (by combining isotope labeling, MS, NMR and computer modeling). Metabolic flux analysis and modeling in tobacco engineered for GlyBet synthesis by expressing choline oxidizing enzymes in either the chloroplast or cytosol, has shown that the choline biosynthesis network is rigid, and tends to resist large changes in C1 demand. A major constraint on engineering enhanced flux to GlyBet in tobacco is a low capacity of choline transport across the chloroplast envelope. Maize and sorghum mutants defective in GlyBet synthesis show greatly reduced flux of C1 units into choline in comparison to GlyBet-accumulating wildtypes, but this is not associated with altered expression of any of the C1 genes. Control of C1 flux to choline in tobacco, maize and sorghum appears to reside primarily at the level of N-methylation of phosphoethanolamine. A candidate signal for the control of this flux is the pool size of phosphocholine which down-regulates and feedback inhibits phosphoethanolamine N-methyltransferase. Methionine S-methyltransferase (MMT) catalyzes the synthesis of S-methylmethionine (SMM) from methionine (Met) and S-adenosylmethionine (AdoMet). SMM can be reconverted to Met by donating a methyl group to homocysteine, and concurrent operation of this reaction and that mediated by MMT sets up the SMM cycle. The genes encoding the enzymes of the SMM cycle were cloned and characterized during this project. SMM has been hypothesized to be essential as a methyl donor or as a transport form of sulfur, and the SMM cycle has been hypothesized to guard against depletion of the free Met pool by excess AdoMet synthesis, or to regulate AdoMet level and hence the AdoMet/S-adenosylhomocysteine ratio (the methylation ratio). To test these hypotheses, we isolated insertional mmt mutants of Arabidopsis and maize. Both mutants lacked the capacity to produce SMM and thus had no SMM cycle. They nevertheless grew and reproduced normally and the seeds of the Arabidopsis mutant had normal sulfur contents. These findings rule out an indispensable role for SMM as a methyl donor or in sulfur transport. The Arabidopsis mutant had significantly higher AdoMet a nd lower S-adenosylhomocysteine (AdoHCy) levels than the wild type, and consequently a higher methylation ratio (20 vs. 14). Free Met and thiol pools were unaltered in this mutant, although there was a 50% decrease in free threonine (Thr) and changes in other amino acids. These data indicate that the SMM cycle contributes to regulation of AdoMet levels rather than preventing depletion of free Met. Since AdoMet activates Thr synthase, that Thr level was not higher but lower in the mmt mutant implies that AdoMet is sequestered away from Thr synthase, which is chloroplastic. Results obtained with the Arabidopsis mmt mutant and wildtype have been integrated into a metabolic model of the intersecting methylation, SMM, and methionine salvage cycles. This model adequately accounts for the steady-state pool sizes of Met, SMM, AdoMet and AdoHCy in wildtype, and the small changes in AdoMet and AdoHCy levels associated with knockout of MMT. This model is now being used to predict the time-course of changes in AdoMet, Met, AdoHCy, and SMM mass isotopomers when Arabidopsis is fed with 13C5-Met at different

David Rhodes

2005-02-09T23:59:59.000Z

255

Proven reliability of the gas-turbine engine. BIPS Phase 1  

SciTech Connect

The background, capabilities and experience of the Garrett Corp. in designing, developing, manufacturing and testing gas turbines and related systems are described, and the requirements for and components of the Brayton Isotope Power System (BIPS) for space vehicles are outlined. Data on the compressor and turbine, alternator, bearings, recuperator, radiator, heat source assembly, and control systems are presented. (LCL)

1976-11-01T23:59:59.000Z

256

New Structural-Dynamics Module for Offshore Multimember Substructures within the Wind Turbine Computer-Aided Engineering Tool FAST: Preprint  

DOE Green Energy (OSTI)

FAST, developed by the National Renewable Energy Laboratory (NREL), is a computer-aided engineering (CAE) tool for aero-hydro-servo-elastic analysis of land-based and offshore wind turbines. This paper discusses recent upgrades made to FAST to enable loads simulations of offshore wind turbines with fixed-bottom, multimember support structures (e.g., jackets and tripods, which are commonly used in transitional-depth waters). The main theory and strategies for the implementation of the multimember substructure dynamics module (SubDyn) within the new FAST modularization framework are introduced. SubDyn relies on two main engineering schematizations: 1) a linear frame finite-element beam (LFEB) model and 2) a dynamics system reduction via Craig-Bampton's method. A jacket support structure and an offshore system consisting of a turbine atop a jacket substructure were simulated to test the SubDyn module and to preliminarily assess results against results from a commercial finite-element code.

Song, H.; Damiani, R.; Robertson, A.; Jonkman, J.

2013-08-01T23:59:59.000Z

257

" "," ",,," Steam Turbines Supplied by Either Conventional or Fluidized Bed Boilers",,,"Conventional Combusion Turbines with Heat Recovery",,,"Combined-Cycle Combusion Turbines",,,"Internal Combusion Engines with Heat Recovery",,," Steam Turbines Supplied by Heat Recovered from High-Temperature Processes",,,," "  

U.S. Energy Information Administration (EIA) Indexed Site

3 Relative Standard Errors for Table 8.3;" 3 Relative Standard Errors for Table 8.3;" " Unit: Percents." " "," ",,," Steam Turbines Supplied by Either Conventional or Fluidized Bed Boilers",,,"Conventional Combusion Turbines with Heat Recovery",,,"Combined-Cycle Combusion Turbines",,,"Internal Combusion Engines with Heat Recovery",,," Steam Turbines Supplied by Heat Recovered from High-Temperature Processes",,,," " " "," " ," " "NAICS Code(a)","Subsector and Industry","Establishments(b)","Establishments with Any Cogeneration Technology in Use(c)","In Use(d)","Not in Use","Don't Know","In Use(d)","Not in Use","Don't Know","In Use(d)","Not in Use","Don't Know","In Use(d)","Not in Use","Don't Know","In Use(d)","Not in Use","Don't Know"

258

Engineering Better Plants for Biofuels | U.S. DOE Office of Science...  

Office of Science (SC) Website

content was much greater. The resulting plants were viable and grew normally. When biomass from these engineered plants was subjected to enzymatic digestion, more sugars were...

259

Long term control of 3D engineering data for nuclear power plants  

Science Conference Proceedings (OSTI)

The engineering of the next generation of nuclear power plants requires to take into account the whole plant lifecycle: engineering, building, operating, maintaining and decommissioning. Satisfying stronger and stronger safety regulations requires the ...

Thomas Paviot; Christophe Mouton; Samir Lamouri

2013-06-01T23:59:59.000Z

260

Nuclear Plant Dynamics and Safety - Nuclear Engineering Division (Argonne)  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Systems Nuclear Systems Modeling and Design Analysis > Nuclear Plant Dynamics and Safety Capabilities Nuclear Systems Modeling and Design Analysis Reactor Physics and Fuel Cycle Analysis Overview Current Projects Software Nuclear Plant Dynamics and Safety Nuclear Data Program Advanced Reactor Development Nuclear Waste Form and Repository Performance Modeling Nuclear Energy Systems Design and Development Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Reactor Physics and Fuel Cycle Analysis Nuclear Plant Dynamics and Safety Bookmark and Share Activities in Nuclear Plant Dynamics and Safety research and development fulfill a primary goal of the Nuclear Engineering (NE) Division to promote improvements in safe and reliable operation of present and future

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

An acoustic energy framework for predicting combustion- driven acoustic instabilities in premixed gas-turbines  

E-Print Network (OSTI)

of Engineering for Gas Turbines and Power, 2000. Vol. 122:of Engineering for Gas Turbines and Power, 2000. Vol. 122:in Lean Premixed Gas Turbine Combustors," Journal of

Ibrahim, Zuhair M. A.

2007-01-01T23:59:59.000Z

262

Lessons Learned in Startup and Commissioning of Simple-Cycle and Combined-Cycle Combustion Turbine Plants  

Science Conference Proceedings (OSTI)

Over the last ten years, hundreds of combustion turbines (CT) have been installed to meet the needs of the power generation market. A variety of CT models have been installed throughout this period, in both simple-cycle and combined-cycle configurations. Some of the initial plants had issues related to meeting performance requirements and acceptable operation, and each new plant design could be improved based on the experience gained on the earlier installations and startups. This report provides a summa...

2009-01-21T23:59:59.000Z

263

Repowering Fossil Steam Plants with Gas Turbines and Heat Recovery Steam Generators: Design Considerations, Economics, and Lessons L earned  

Science Conference Proceedings (OSTI)

This report describes repowering fossil steam plants using gas turbines (GTs) and heat recovery steam generators (HRSGs) in combined-cycle mode. Design considerations and guidance, comparative economics, and lessons learned in the development of such projects are included. Various other methods of fossil plant repowering with GTs are also briefly discussed. The detailed results and comparisons that are provided relate specifically to a generic GT/HRSG repowering. Design parameters, limitations, schedulin...

2012-08-08T23:59:59.000Z

264

HTGR-GT closed-cycle gas turbine: a plant concept with inherent cogeneration (power plus heat production) capability  

SciTech Connect

The high-grade sensible heat rejection characteristic of the high-temperature gas-cooled reactor-gas turbine (HTGR-GT) plant is ideally suited to cogeneration. Cogeneration in this nuclear closed-cycle plant could include (1) bottoming Rankine cycle, (2) hot water or process steam production, (3) desalination, and (4) urban and industrial district heating. This paper discusses the HTGR-GT plant thermodynamic cycles, design features, and potential applications for the cogeneration operation modes. This paper concludes that the HTGR-GT plant, which can potentially approach a 50% overall efficiency in a combined cycle mode, can significantly aid national energy goals, particularly resource conservation.

McDonald, C.F.

1980-04-01T23:59:59.000Z

265

ENERGY STAR Industrial Plant Certification: Professional Engineers' Guide  

NLE Websites -- All DOE Office Websites (Extended Search)

Industrial Plant Certification: Professional Industrial Plant Certification: Professional Engineers' Guide Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources

266

NETL: News Release - Enabling Turbine Technologies for Hydrogen Fuels  

NLE Websites -- All DOE Office Websites (Extended Search)

September 8, 2005 September 8, 2005 Enabling Turbine Technologies for Hydrogen Fuels Turbine Program Advances Ultra-Clean, Coal-Based Systems WASHINGTON, DC - The Department of Energy's Office of Fossil Energy Turbine Technology R&D Program was recently expanded with the selection of 10 new projects valued at $130 million. The new program will advance turbines and turbine subsystems for integrated gasification combined cycle (IGCC) power plants, and address the use of hydrogen in small-scale turbines for industrial applications. Resulting technologies will operate cleanly and efficiently when fueled with coal-derived hydrogen or synthesis gas. Turbines can generate electrical power on a large scale-in central power stations sized 250 megawatts and larger-or on a small scale-in local, industrial power systems sized 1-100 megawatts. Small-scale systems also produce mechanical power for jet engines, compressors, heating systems, and other applications.

267

Biennial Assessment of the Fifth Power Plan Gas Turbine Power Plant Planning Assumptions  

E-Print Network (OSTI)

from Stationary Gas Turbines. STAFF RECOMMENDATION Energy Commission staff reviewed the petition regarding Nitrogen Oxides from Stationary Gas Turbines. STAFF RECOMMENDATION Energy Commission staff CALIFORNIA ENERGY COMMISSION 1516 NINTH STREET SACRAMENTO. CA 95814-5512 STATE OF CALIFORNIA ENERGY

268

Water Hammer Handbook for Nuclear Plant Engineers and Operators  

Science Conference Proceedings (OSTI)

Water hammer events continue to be responsible for costly equipment damage and plant outages. This Water Hammer Handbook is designed to help utility engineers prevent, mitigate, and accommodate water hammer events. The handbook provides assessment techniques, design approaches, and operating procedures. Also included are a root cause summary and an extensive overview of BWR and PWR water hammer experience on a system-by-system basis.

1996-10-04T23:59:59.000Z

269

Turbine blade tip gap reduction system  

DOE Patents (OSTI)

A turbine blade sealing system for reducing a gap between a tip of a turbine blade and a stationary shroud of a turbine engine. The sealing system includes a plurality of flexible seal strips extending from a pressure side of a turbine blade generally orthogonal to the turbine blade. During operation of the turbine engine, the flexible seal strips flex radially outward extending towards the stationary shroud of the turbine engine, thereby reducing the leakage of air past the turbine blades and increasing the efficiency of the turbine engine.

Diakunchak, Ihor S.

2012-09-11T23:59:59.000Z

270

Guidelines for Reducing the Time and Cost of Turbine-Generator Maintenance Overhauls and Inspections 2010--Volume 4: Turbine Generat or Component Procurement Specifications  

Science Conference Proceedings (OSTI)

Up to 70% of the outages planned for conventional steam power plants involve work on the turbine. The challenge for the engineer is to improve performance and extend reliability, while eliminating unproductive activities from the maintenance outage schedule. This report provides general guidelines for planning and performing maintenance on steam turbines during outages.

2010-12-23T23:59:59.000Z

271

Guidelines for Reducing the Time and Cost of Turbine-Generator Maintenance Overhauls and Inspections-2006; Volume 4: Turbine-Generat or Component Procurement Specifications  

Science Conference Proceedings (OSTI)

Up to 70% of the outages planned for conventional steam power plants involve work on the turbine. The challenge for the engineer is to improve performance and extend reliability, while eliminating unproductive activities from the maintenance outage schedule. This report provides general guidelines for planning and performing maintenance on steam turbines during outages.

2007-03-30T23:59:59.000Z

272

The Industrial Power Plant Management System - An Engineering Approach  

E-Print Network (OSTI)

Based on energy studies in over 70 plants in the forest products industry, experience has shown that, in addition to process improvements, the most important energy conservation measures in mill power departments are: - Load shedding and fuel allocation in such a manner that economically optimum conditions are achieved, taking into account purchased power supply. - Upgrading instrumentation for more accurate information and closer monitoring of plant operation. To achieve the maximum savings from these measures, a computerized energy management system is often required. This is because the optimum load allocation and best operating point must be determined through continuous energy balance calculations as the demand situation changes. The paper discusses the systems engineering approach to the design of a computerized energy management system. It is based on practical experience focusing on a tailored solution for any industrial power plant, resulting in a concept which is technically and economically feasible.

Aarnio, S. E.; Tarvainen, H. J.; Tinnis, V.

1979-01-01T23:59:59.000Z

273

Definition: Wind turbine | Open Energy Information  

Open Energy Info (EERE)

turbine turbine Jump to: navigation, search Dictionary.png Wind turbine A machine that converts wind energy to mechanical energy; typically connected to a generator to produce electricity.[1][2] View on Wikipedia Wikipedia Definition A wind turbine is a device that converts kinetic energy from the wind, also called wind energy, into mechanical energy in a process known as wind power. If the mechanical energy is used to produce electricity, the device may be called a wind turbine or wind power plant. If the mechanical energy is used to drive machinery, such as for grinding grain or pumping water, the device is called a windmill or wind pump. Similarly, it may be referred to as a wind charger when used for charging batteries. The result of over a millennium of windmill development and modern engineering,

274

Plant Support Engineering: Guidelines for Optimizing the Engineering Change Process for Nuclear Power Plants, Revision 2  

Science Conference Proceedings (OSTI)

This report supersedes EPRI report TR-103586-R1 in its entirety. The objective of this report is to present decision criteria that licensees can apply to select the level of administrative and technical effort appropriate for any given engineering change8212whether it is a large, complex change with safety significance, a small insignificant change, or a documentation change with no impact on safety. The change must be categorized correctly, the regulatory requirements properly considered, and the approp...

2007-11-14T23:59:59.000Z

275

NETL: Turbines  

NLE Websites -- All DOE Office Websites (Extended Search)

Turbines Coal and Power Systems Turbines Turbine Animation Turbines have been the world's energy workhorses for generations... - Read More The NETL Turbine Program manages a...

276

Rampressor Turbine Design  

DOE Green Energy (OSTI)

The design of a unique gas turbine engine is presented. The first Rampressor Turbine engine rig will be a configuration where the Rampressor rotor is integrated into an existing industrial gas turbine engine. The Rampressor rotor compresses air which is burned in a traditional stationary combustion system in order to increase the enthalpy of the compressed air. The combustion products are then expanded through a conventional gas turbine which provides both compressor and electrical power. This in turn produces shaft torque, which drives a generator to provide electricity. The design and the associated design process of such an engine are discussed in this report.

Ramgen Power Systems

2003-09-30T23:59:59.000Z

277

NETL: News Release - Advanced Natural Gas Turbine Hailed as Top Power  

NLE Websites -- All DOE Office Websites (Extended Search)

December 30, 2003 December 30, 2003 Advanced Natural Gas Turbine Hailed as Top Power Project of 2003 Power Engineering Cites Product of Energy Department's Advanced Turbine Systems Program WASHINGTON, DC - A power plant featuring a next-generation gas turbine developed as part of the U.S. Department of Energy's advanced turbine systems program has been selected by Power Engineering magazine as one of three "2003 Projects of the Year." Baglan Bay Power Station Baglan Bay Power Station, South Wales, U.K. Photo courtesy of GE Power Systems The Baglan Bay Power Station near Cardiff, Wales, UK reached a major milestone for the global power industry when GE Power System's H System gas turbine debuted there earlier this year. The most advanced combustion turbine in the world, the H System is the first gas turbine combined-cycle

278

Tempest gas turbine extends EGT product line  

SciTech Connect

With the introduction of the 7.8 MW (mechanical output) Tempest gas turbine, ECT has extended the company`s line of its small industrial turbines. The new Tempest machine, featuring a 7.5 MW electric output and a 33% thermal efficiency, ranks above the company`s single-shaft Typhoon gas turbine, rated 3.2 and 4.9 MW, and the 6.3 MW Tornado gas turbine. All three machines are well-suited for use in combined heat and power (CHP) plants, as demonstrated by the fact that close to 50% of the 150 Typhoon units sold are for CHP applications. This experience has induced EGT, of Lincoln, England, to announce the introduction of the new gas turbine prior to completion of the testing program. The present single-shaft machine is expected to be used mainly for industrial trial cogeneration. This market segment, covering the needs of paper mills, hospitals, chemical plants, ceramic industry, etc., is a typical local market. Cogeneration plants are engineered according to local needs and have to be assisted by local organizations. For this reason, to efficiently cover the world market, EGT has selected a number of associates that will receive from Lincoln completely engineered machine packages and will engineer the cogeneration system according to custom requirements. These partners will also assist the customer and dispose locally of the spares required for maintenance operations.

Chellini, R.

1995-07-01T23:59:59.000Z

279

Design and performance of a gas-turbine engine from an automobile turbocharger  

E-Print Network (OSTI)

The Massachusetts Institute of Technology Department of Mechanical Engineering teaches thermodynamics and fluid mechanics through a pair of classes, Thermal Fluids Engineering I & II. The purpose of this project was to ...

Tsai, Lauren (Lauren Elizabeth)

2004-01-01T23:59:59.000Z

280

Identification of hazards in non-nuclear power plants. [Public health hazards of fossil-fuel, combined cycle, combustion turbine, and geothermal power plants  

DOE Green Energy (OSTI)

Public health and safety hazards have been identified for five types of power plants: coal-fired, oil-fired steam turbine, combined cycle, combustion (gas) turbine, and geothermal. The results of the analysis show that air pollutants are the major hazard that affects the health and safety of the general public. A total of ninety plant hazards were identified for the five plant types. Each of these hazards were rated in six categories as to their affect on the general public. The criteria used in the analysis were: area/population exposed; duration; mitigation; quantity to toxicity ratio; nature of health effects; and public attitude. Even though ninety hazards were identified for the five plants analyzed, the large majority of hazards were similar for each plant. Highest ratings were given to the products of the combustion cycle or to hydrogen sulfide emissions from geothermal plants. Water pollution, cooling tower effects and noise received relatively low ratings. The highest rated of the infrequent or hypothetical hazards were those associated with potential fires, explosions, and chlorine releases at the plant. Hazards associated with major cooling water releases, water pollution and missiles received the lowest ratings. Since the results of the study clearly show that air pollutants are currently considered the most severe hazard, additional effort must be made to further understand the complex interactions of pollutants with man and his environment. Of particular importance is the determination of dose-response relationships for long term, low level exposure to air pollutants. (EDB)

Roman, W.S.; Israel, W.J.; Sacramo, R.F.

1978-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

ADVANCED TURBINE SYSTEM FEDERAL ASSISTANCE PROGRAM  

DOE Green Energy (OSTI)

Rolls-Royce Corporation has completed a cooperative agreement under Department of Energy (DOE) contract DE-FC21-96MC33066 in support of the Advanced Turbine Systems (ATS) program to stimulate industrial power generation markets. This DOE contract was performed during the period of October 1995 to December 2002. This final technical report, which is a program deliverable, describes all associated results obtained during Phases 3A and 3B of the contract. Rolls-Royce Corporation (formerly Allison Engine Company) initially focused on the design and development of a 10-megawatt (MW) high-efficiency industrial gas turbine engine/package concept (termed the 701-K) to meet the specific goals of the ATS program, which included single digit NOx emissions, increased plant efficiency, fuel flexibility, and reduced cost of power (i.e., $/kW). While a detailed design effort and associated component development were successfully accomplished for the 701-K engine, capable of achieving the stated ATS program goals, in 1999 Rolls-Royce changed its focus to developing advanced component technologies for product insertion that would modernize the current fleet of 501-K and 601-K industrial gas turbines. This effort would also help to establish commercial venues for suppliers and designers and assist in involving future advanced technologies in the field of gas turbine engine development. This strategy change was partly driven by the market requirements that suggested a low demand for a 10-MW aeroderivative industrial gas turbine, a change in corporate strategy for aeroderivative gas turbine engine development initiatives, and a consensus that a better return on investment (ROI) could be achieved under the ATS contract by focusing on product improvements and technology insertion for the existing Rolls-Royce small engine industrial gas turbine fleet.

Frank Macri

2003-10-01T23:59:59.000Z

282

Combined Heat and Power: Coal-Fired Air Turbine (CAT)-Cycle Plant  

DOE Green Energy (OSTI)

By combining an integrated system with a gas turbine, coal-fired air turbine cycle technology can produce energy at an efficiency rate of over 40%, with capital and operating costs below those of competing conventional systems. Read this fact sheet to discover the additional benefits of this exciting new technology.

Recca, L.

1999-01-29T23:59:59.000Z

283

Proceedings of the joint contractors meeting: FE/EE Advanced Turbine Systems conference FE fuel cells and coal-fired heat engines conference  

SciTech Connect

The joint contractors meeting: FE/EE Advanced Turbine Systems conference FEE fuel cells and coal-fired heat engines conference; was sponsored by the US Department of Energy Office of Fossil Energy and held at the Morgantown Energy Technology Center, P.O. Box 880, Morgantown, West Virginia 26507-0880, August 3--5, 1993. Individual papers have been entered separately.

Geiling, D.W. [ed.

1993-08-01T23:59:59.000Z

284

Plant Engineering: Predicting Nuclear Plant Output from Performance Losses and Gains  

Science Conference Proceedings (OSTI)

The marginal costs of generating electricity, together with the strong emphasis on maximizing production at today's nuclear power generating units, have increased the need for nuclear plant thermal performance engineers (TPEs) to determine the gap between the station's actual performance and its ultimate capability. This report from the Electric Power Research Institute (EPRI) outlines the various items that influence the performance of a nuclear unit and gives the TPE methods to employ in estimating the...

2011-12-15T23:59:59.000Z

285

OVERLAY COATINGS FOR GAS TURBINE AIRFOILS  

E-Print Network (OSTI)

of Supperalloys for Gas Turbine Engines, 11 J. Metals, Q,OVERLAY COATINGS FOR GAS TURBINE AIRFOILS Donald H. Boone1970, p. 545. R. Krutenat, Gas Turbine Materials Conference

Boone, Donald H.

2013-01-01T23:59:59.000Z

286

Solid particle magnetic deflection system for protection of steam turbine plants  

SciTech Connect

A method for removing metallic particles from a flow of steam supplied by a steam generator through a supply path to a steam turbine, the metallic particles being entrained in the flow of steam and, at least in part, having defoliated from boiler pipes of the steam generator is described comprising: defining an axial section of a predetermined axial direction, circumferential configuration and length, in the steam flow path from the steam generator to the steam turbine; producing a magnetic field in the defined section of the steam flow path; and trapping and collecting the deflected metallic particles, thereby to remove same from the flow of steam supplied to the turbine.

Viscovich, P.W.

1988-02-23T23:59:59.000Z

287

Turbine disc sealing assembly  

SciTech Connect

A disc seal assembly for use in a turbine engine. The disc seal assembly includes a plurality of outwardly extending sealing flange members that define a plurality of fluid pockets. The sealing flange members define a labyrinth flow path therebetween to limit leakage between a hot gas path and a disc cavity in the turbine engine.

Diakunchak, Ihor S.

2013-03-05T23:59:59.000Z

288

Mechanical engineering Department Seminar  

E-Print Network (OSTI)

power generation gas turbines and jet engines. As the energy efficiency of gas turbines in- creases to pro- vide thermal protection to turbine blades and vanes in the hottest sections of both electric with turbine inlet turbine, advances in turbine efficiency depend on improved ther- mal barrier coatings

289

Plutonium Finishing Plant. Interim plutonium stabilization engineering study  

SciTech Connect

This report provides the results of an engineering study that evaluated the available technologies for stabilizing the plutonium stored at the Plutonium Finishing Plant located at the hanford Site in southeastern Washington. Further processing of the plutonium may be required to prepare the plutonium for interim (<50 years) storage. Specifically this document provides the current plutonium inventory and characterization, the initial screening process, and the process descriptions and flowsheets of the technologies that passed the initial screening. The conclusions and recommendations also are provided. The information contained in this report will be used to assist in the preparation of the environmental impact statement and to help decision makers determine which is the preferred technology to process the plutonium for interim storage.

Sevigny, G.J.; Gallucci, R.H.; Garrett, S.M.K.; Geeting, J.G.H.; Goheen, R.S.; Molton, P.M.; Templeton, K.J.; Villegas, A.J. [Pacific Northwest Lab., Richland, WA (United States); Nass, R. [Nuclear Fuel Services, Inc. (United States)

1995-08-01T23:59:59.000Z

290

Compressor discharge bleed air circuit in gas turbine plants and related method  

DOE Patents (OSTI)

A gas turbine system that includes a compressor, a turbine component and a load, wherein fuel and compressor discharge bleed air are supplied to a combustor and gaseous products of combustion are introduced into the turbine component and subsequently exhausted to atmosphere. A compressor discharge bleed air circuit removes bleed air from the compressor and supplies one portion of the bleed air to the combustor and another portion of the compressor discharge bleed air to an exhaust stack of the turbine component in a single cycle system, or to a heat recovery steam generator in a combined cycle system. In both systems, the bleed air diverted from the combustor may be expanded in an air expander to reduce pressure upstream of the exhaust stack or heat recovery steam generator.

Anand, Ashok Kumar (Niskayuna, NY); Berrahou, Philip Fadhel (Latham, NY); Jandrisevits, Michael (Clifton Park, NY)

2003-04-08T23:59:59.000Z

291

Compressor discharge bleed air circuit in gas turbine plants and related method  

DOE Patents (OSTI)

A gas turbine system that includes a compressor, a turbine component and a load, wherein fuel and compressor discharge bleed air are supplied to a combustor and gaseous products of combustion are introduced into the turbine component and subsequently exhausted to atmosphere. A compressor discharge bleed air circuit removes bleed air from the compressor and supplies one portion of the bleed air to the combustor and another portion of the compressor discharge bleed air to an exhaust stack of the turbine component in a single cycle system, or to a heat recovery steam generator in a combined cycle system. In both systems, the bleed air diverted from the combustor may be expanded in an air expander to reduce pressure upstream of the exhaust stack or heat recovery steam generator.

Anand, Ashok Kumar (Niskayuna, NY); Berrahou, Philip Fadhel (Latham, NY); Jandrisevits, Michael (Clifton Park, NY)

2002-01-01T23:59:59.000Z

292

Impact of Advanced Turbine Systems on coal-based power plants  

DOE Green Energy (OSTI)

The advanced power-generation products currently under development in our program show great promise for ultimate commercial use. Four of these products are referred to in this paper: Integrated Gasification Combined Cycle (IGCC), Pressurized Fluidized Bed Combustion (PFBC), Externally Fired Combined Cycle (EFCC), and Integrated Gasification Fuel Cell (IGFC). Three of these products, IGCC, PFBC, and EFCC, rely on advanced gas turbines as a key enabling technology and the foundation for efficiencies in the range of 52 to 55 percent. DOE is funding the development of advanced gas turbines in the newly instituted Advanced Turbine Systems (ATS) Program, one of DOE`s highest priority natural gas initiatives. The turbines, which will have natural gas efficiencies of 60 percent, are being evaluated for coal gas compatibility as part of that program.

Bechtel, T.F.

1993-12-31T23:59:59.000Z

293

GE Upgrades Top Selling Advanced Gas Turbine  

Science Conference Proceedings (OSTI)

Oct 30, 2009 ... According to GE, a typical power plant operating two new 7FA gas turbines with a single steam turbine in combined cycle configuration would ...

294

NEXT GENERATION TURBINE PROGRAM  

SciTech Connect

The Next Generation Turbine (NGT) Program's technological development focused on a study of the feasibility of turbine systems greater than 30 MW that offer improvement over the 1999 state-of-the-art systems. This program targeted goals of 50 percent turndown ratios, 15 percent reduction in generation cost/kW hour, improved service life, reduced emissions, 400 starts/year with 10 minutes to full load, and multiple fuel usage. Improvement in reliability, availability, and maintainability (RAM), while reducing operations, maintenance, and capital costs by 15 percent, was pursued. This program builds on the extensive low emissions stationary gas turbine work being carried out by Pratt & Whitney (P&W) for P&W Power Systems (PWPS), which is a company under the auspices of the United Technologies Corporation (UTC). This study was part of the overall Department of Energy (DOE) NGT Program that extends out to the year 2008. A follow-on plan for further full-scale component hardware testing is conceptualized for years 2002 through 2008 to insure a smooth and efficient transition to the marketplace for advanced turbine design and cycle technology. This program teamed the National Energy Technology Laboratory (NETL), P&W, United Technologies Research Center (UTRC), kraftWork Systems Inc., a subcontractor on-site at UTRC, and Multiphase Power and Processing Technologies (MPPT), an off-site subcontractor. Under the auspices of the NGT Program, a series of analyses were performed to identify the NGT engine system's ability to serve multiple uses. The majority were in conjunction with a coal-fired plant, or used coal as the system fuel. Identified also was the ability of the NGT system to serve as the basis of an advanced performance cycle: the humid air turbine (HAT) cycle. The HAT cycle is also used with coal gasification in an integrated cycle HAT (IGHAT). The NGT systems identified were: (1) Feedwater heating retrofit to an existing coal-fired steam plant, which could supply both heat and peaking power (Block 2 engine); (2) Repowering of an older coal-fired plant (Block 2 engine); (3) Gas-fired HAT cycle (Block 1 and 2 engines); (4) Integrated gasification HAT (Block 1 and 2 engines). Also under Phase I of the NGT Program, a conceptual design of the combustion system has been completed. An integrated approach to cycle optimization for improved combustor turndown capability has been employed. The configuration selected has the potential for achieving single digit NO{sub x}/CO emissions between 40 percent and 100 percent load conditions. A technology maturation plan for the combustion system has been proposed. Also, as a result of Phase I, ceramic vane technology will be incorporated into NGT designs and will require less cooling flow than conventional metallic vanes, thereby improving engine efficiency. A common 50 Hz and 60 Hz power turbine was selected due to the cost savings from eliminating a gearbox. A list of ceramic vane technologies has been identified for which the funding comes from DOE, NASA, the U.S. Air Force, and P&W.

William H. Day

2002-05-03T23:59:59.000Z

295

NEXT GENERATION TURBINE PROGRAM  

SciTech Connect

The Next Generation Turbine (NGT) Program's technological development focused on a study of the feasibility of turbine systems greater than 30 MW that offer improvement over the 1999 state-of-the-art systems. This program targeted goals of 50 percent turndown ratios, 15 percent reduction in generation cost/kW hour, improved service life, reduced emissions, 400 starts/year with 10 minutes to full load, and multiple fuel usage. Improvement in reliability, availability, and maintainability (RAM), while reducing operations, maintenance, and capital costs by 15 percent, was pursued. This program builds on the extensive low emissions stationary gas turbine work being carried out by Pratt & Whitney (P&W) for P&W Power Systems (PWPS), which is a company under the auspices of the United Technologies Corporation (UTC). This study was part of the overall Department of Energy (DOE) NGT Program that extends out to the year 2008. A follow-on plan for further full-scale component hardware testing is conceptualized for years 2002 through 2008 to insure a smooth and efficient transition to the marketplace for advanced turbine design and cycle technology. This program teamed the National Energy Technology Laboratory (NETL), P&W, United Technologies Research Center (UTRC), kraftWork Systems Inc., a subcontractor on-site at UTRC, and Multiphase Power and Processing Technologies (MPPT), an off-site subcontractor. Under the auspices of the NGT Program, a series of analyses were performed to identify the NGT engine system's ability to serve multiple uses. The majority were in conjunction with a coal-fired plant, or used coal as the system fuel. Identified also was the ability of the NGT system to serve as the basis of an advanced performance cycle: the humid air turbine (HAT) cycle. The HAT cycle is also used with coal gasification in an integrated cycle HAT (IGHAT). The NGT systems identified were: (1) Feedwater heating retrofit to an existing coal-fired steam plant, which could supply both heat and peaking power (Block 2 engine); (2) Repowering of an older coal-fired plant (Block 2 engine); (3) Gas-fired HAT cycle (Block 1 and 2 engines); (4) Integrated gasification HAT (Block 1 and 2 engines). Also under Phase I of the NGT Program, a conceptual design of the combustion system has been completed. An integrated approach to cycle optimization for improved combustor turndown capability has been employed. The configuration selected has the potential for achieving single digit NO{sub x}/CO emissions between 40 percent and 100 percent load conditions. A technology maturation plan for the combustion system has been proposed. Also, as a result of Phase I, ceramic vane technology will be incorporated into NGT designs and will require less cooling flow than conventional metallic vanes, thereby improving engine efficiency. A common 50 Hz and 60 Hz power turbine was selected due to the cost savings from eliminating a gearbox. A list of ceramic vane technologies has been identified for which the funding comes from DOE, NASA, the U.S. Air Force, and P&W.

William H. Day

2002-05-03T23:59:59.000Z

296

Method of and apparatus for preheating pressurized fluidized bed combustor and clean-up subsystem of a gas turbine power plant  

DOE Patents (OSTI)

In a gas turbine power plant having a pressurized fluidized bed combustor, gas turbine-air compressor subsystem and a gas clean-up subsystem interconnected for fluid flow therethrough, a pipe communicating the outlet of the compressor of the gas turbine-air compressor subsystem with the interior of the pressurized fluidized bed combustor and the gas clean-up subsystem to provide for flow of compressed air, heated by the heat of compression, therethrough. The pressurized fluidized bed combustor and gas clean-up subsystem are vented to atmosphere so that the heated compressed air flows therethrough and loses heat to the interior of those components before passing to the atmosphere.

Cole, Rossa W. (E. Rutherford, NJ); Zoll, August H. (Cedar Grove, NJ)

1982-01-01T23:59:59.000Z

297

Advanced Gas Turbine Guidelines: Rotating Blade Temperature Measurement System (BTMS)--Supplement No. 1: Durability Surveillance at Florida Power & Light Company's Martin Plant  

Science Conference Proceedings (OSTI)

The blade scans performed by EPRI's Blade Temperature Measurement System (BTMS) represent an important source of blade metal temperature data. These advanced gas turbine guidelines describe the design, installation, and operation of the BTMS in a utility power plant operating General Electric MS7221FA advanced gas turbines. The guidelines include an analysis of blade temperature scans as well as a summary of lessons learned under baseload operating conditions.

1999-04-26T23:59:59.000Z

298

Operating experience feedback report-reliability of safety-related steam turbine-driven standby pumps used in US commerical nuclear power plants  

SciTech Connect

Pump failure experience is collected by two primary means: (1) Licensee Event Reports, and (2) Nuclear Plant Reliability Data System failure reports. Certain safety-related turbine-driven standby pumps were identified by these data systems as experiencing significant ongoing repetitive failures of their turbine drivers, resulting in low reliability of the pump units. The root causes of identified failures were determined, and actions to preclude these repetitive failures were identified. 5 refs., 1 tab.

Boardman, J.R. [Nuclear Regulatory Commission, Washington, DC (United States)

1995-01-01T23:59:59.000Z

299

Flexibility and economics of combustion turbine-based cogeneration systems  

SciTech Connect

The major objective of this paper is to discuss various options that affect the efficiency of combustion turbine cogeneration plants and the commensurate net worth impact to the firm. Topics considered include technical evaluation parameters, an efficiency definition, a cogeneration heat rate definition, the qualitative value of efficiency and the cogeneration heat rate, economic evaluation techniques, industrial processes suitable for cogeneration, equipment requirements, the combustion turbine package, the heat recovery steam generator package, balance of plant equipment, engineering and construction, the total cost of incorporating the cogeneration plant, cogeneration with the basic combustion turbine/heat recovery steam generator (CT/HRSG) cycle, cogeneration-steam production increase by ductburning, dual-pressure HRSG, the backpressure steam turbine, supercharging, separating electrical power generation from steam demand, and incorporating a backup source of steam generation.

Wohlschlegel, M.V.; Marcellino, A.; Myers, G.

1983-01-01T23:59:59.000Z

300

Tools for Engineered Surfaces  

Science Conference Proceedings (OSTI)

... Heat Exchangers, Steam Condensers. 2636.3, 216, 21,000. ... Turbines and Turbine Generator Sets, 67, 6, 4, 2. IC Engines, 263, 19, 8, 4. ...

2011-10-19T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

A systemic approach to integrated E-maintenance of large engineering plants  

Science Conference Proceedings (OSTI)

Large engineering plants (LEPs) have certain unique features that necessitate a maintenance strategy that is a combination of both time and condition based maintenance. Although this requirement is appreciated to varying degrees by asset owners, applied ... Keywords: Systemic approach, availability, e-maintenance, large engineering plants, reliability

Ajit Kumar Verma; A. Srividya; P. G. Ramesh

2010-05-01T23:59:59.000Z

302

New baseload power plants  

Science Conference Proceedings (OSTI)

This is a tabulation of the results of this magazines survey of current plans for new baseload power plants. The table lists the unit name, capacity, fuel, engineering firm, constructor, suppliers for steam generator, turbine generator and flue gas desulfurization equipment, date due on-line, and any non-utility participants. The table includes fossil-fuel plants, nuclear plants, geothermal, biomass and hydroelectric plants.

Not Available

1993-04-01T23:59:59.000Z

303

Hydrogen Turbines | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydrogen Turbines Hydrogen Turbines Hydrogen Turbines Hydrogen Turbines The Turbines of Tomorrow Combustion (gas) turbines are key components of advanced systems designed for new electric power plants in the United States. With gas turbines, power plants will supply clean, increasingly fuel-efficient, and relatively low-cost energy. Typically, a natural gas-fired combustion turbine-generator operating in a "simple cycle" converts between 25 and 35 percent of the natural gas heating value to useable electricity. Today, most new smaller power plants also install a recuperator to capture waste heat from the turbine's exhaust to preheat combustion air and boost efficiencies. In most of the new larger plants, a "heat recovery steam generator" is installed to recover waste

304

CONCEPTUAL STUDIES OF A FUEL-FLEXIBLE LOW-SWIRL COMBUSTION SYSTEM FOR THE GAS TURBINE IN CLEAN COAL POWER PLANTS  

SciTech Connect

This paper reports the results of preliminary analyses that show the feasibility of developing a fuel flexible (natural gas, syngas and high-hydrogen fuel) combustion system for IGCC gas turbines. Of particular interest is the use of Lawrence Berkeley National Laboratory's DLN low swirl combustion technology as the basis for the IGCC turbine combustor. Conceptual designs of the combustion system and the requirements for the fuel handling and delivery circuits are discussed. The analyses show the feasibility of a multi-fuel, utility-sized, LSI-based, gas turbine engine. A conceptual design of the fuel injection system shows that dual parallel fuel circuits can provide range of gas turbine operation in a configuration consistent with low pollutant emissions. Additionally, several issues and challenges associated with the development of such a system, such as flashback and auto-ignition of the high-hydrogen fuels, are outlined.

Smith, K.O.; Littlejohn, David; Therkelsen, Peter; Cheng, Robert K.; Ali, S.

2009-11-30T23:59:59.000Z

305

Low Wind Speed Technology Phase II: Investigation of the Application of Medium-Voltage Variable-Speed Drive Technology to Improve the Cost of Energy from Low Wind Speed Turbines; Behnke, Erdman and Whitaker Engineering, Inc.  

SciTech Connect

This fact sheet describes a subcontract with Behnke, Erdman & Whitaker Engineering, Inc. to test the feasibility of applying medium-voltage variable-speed drive technology to low wind speed turbines.

2006-03-01T23:59:59.000Z

306

FAMU-FSU College of Engineering Department of Mechanical Engineering  

E-Print Network (OSTI)

a conventional power cycle, for example, through a steam turbine or Stirling engine. Four main elements

Krothapalli, Anjaneyulu

307

Advanced Hydrogen Turbine Development  

DOE Green Energy (OSTI)

Siemens has developed a roadmap to achieve the DOE goals for efficiency, cost reduction, and emissions through innovative approaches and novel technologies which build upon worldwide IGCC operational experience, platform technology, and extensive experience in G-class operating conditions. In Phase 1, the technologies and concepts necessary to achieve the program goals were identified for the gas turbine components and supporting technology areas and testing plans were developed to mitigate identified risks. Multiple studies were conducted to evaluate the impact in plant performance of different gas turbine and plant technologies. 2015 gas turbine technologies showed a significant improvement in IGCC plant efficiency, however, a severe performance penalty was calculated for high carbon capture cases. Thermodynamic calculations showed that the DOE 2010 and 2015 efficiency targets can be met with a two step approach. A risk management process was instituted in Phase 1 to identify risk and develop mitigation plans. For the risks identified, testing and development programs are in place and the risks will be revisited periodically to determine if changes to the plan are necessary. A compressor performance prediction has shown that the design of the compressor for the engine can be achieved with additional stages added to the rear of the compressor. Tip clearance effects were studied as well as a range of flow and pressure ratios to evaluate the impacts to both performance and stability. Considerable data was obtained on the four candidate combustion systems: diffusion, catalytic, premix, and distributed combustion. Based on the results of Phase 1, the premixed combustion system and the distributed combustion system were chosen as having the most potential and will be the focus of Phase 2 of the program. Significant progress was also made in obtaining combustion kinetics data for high hydrogen fuels. The Phase 1 turbine studies indicate initial feasibility of the advanced hydrogen turbine that meets the aggressive targets set forth for the advanced hydrogen turbine, including increased rotor inlet temperature (RIT), lower total cooling and leakage air (TCLA) flow, higher pressure ratio, and higher mass flow through the turbine compared to the baseline. Maintaining efficiency with high mass flow Syngas combustion is achieved using a large high AN2 blade 4, which has been identified as a significant advancement beyond the current state-of-the-art. Preliminary results showed feasibility of a rotor system capable of increased power output and operating conditions above the baseline. In addition, several concepts were developed for casing components to address higher operating conditions. Rare earth modified bond coat for the purpose of reducing oxidation and TBC spallation demonstrated an increase in TBC spallation life of almost 40%. The results from Phase 1 identified two TBC compositions which satisfy the thermal conductivity requirements and have demonstrated phase stability up to temperatures of 1850 C. The potential to join alloys using a bonding process has been demonstrated and initial HVOF spray deposition trials were promising. The qualitative ranking of alloys and coatings in environmental conditions was also performed using isothermal tests where significant variations in alloy degradation were observed as a function of gas composition. Initial basic system configuration schematics and working system descriptions have been produced to define key boundary data and support estimation of costs. Review of existing materials in use for hydrogen transportation show benefits or tradeoffs for materials that could be used in this type of applications. Hydrogen safety will become a larger risk than when using natural gas fuel as the work done to date in other areas has shown direct implications for this type of use. Studies were conducted which showed reduced CO{sub 2} and NOx emissions with increased plant efficiency. An approach to maximize plant output is needed in order to address the DOE turbine goal for 20-30% reduction o

Joesph Fadok

2008-01-01T23:59:59.000Z

308

High temperature nuclear gas turbine  

SciTech Connect

Significance of gas turbine cycle, process of the development of gas turbines, cycle and efficiency of high-temperature gas turbines, history of gas turbine plants and application of nuclear gas turbines are described. The gas turbines are directly operated by the heat from nuclear plants. The gas turbines are classified into two types, namely open cycle and closed cycle types from the point of thermal cycle, and into two types of internal combustion and external combustion from the point of heating method. The hightemperature gas turbines are tbe type of internal combustion closed cycle. Principle of the gas turbines of closed cycle and open cycle types is based on Brayton, Sirling, and Ericsson cycles. Etficiency of the turbines is decided only by pressure ratio, and is independent of gas temperature. An example of the turbine cycle for the nuclear plant Gestacht II is explained. The thermal efficiency of that plant attains 37%. Over the gas temperature of about 750 deg C, the thermal efficiency of the gas turbine cycle is better than that of steam turbine cycle. As the nuclear fuel, coated particle fuel is used, and this can attain higher temperature of core outlet gas. Direct coupling of the nuclear power plants and the high temperature gas turbines has possibility of the higher thermal efficiency. (JA)

Kurosawa, A.

1973-01-01T23:59:59.000Z

309

NETL: Turbines - Oxy-Fuel Turbines  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxy-Fuel Turbines Oxy-Fuel Turbines Oxy-fuel combustion potentially can be used in plants based on both conventional and advanced technology. Studies have shown that plants equipped with oxy-fuel systems could reach nominal efficiencies in the 30 percent range with today's steam turbines when fueled with natural gas and when capturing the CO2. With anticipated advances in gasification, oxygen separation, and steam turbine technology, plants using oxy-fuel systems are expected to achieve efficiencies in the mid-40 percent range, with near-100 percent CO2 capture and near-zero NOx emissions. By 2012: In the near-term, efforts are focused on the development of oxy- fuel turbine and combustor technologies for highly efficient (50-60 percent), near-zero emissions, coal-based power systems

310

SPACE HANDBOOK TURBINES  

SciTech Connect

Turbine specific weight vs. power plant output was investigated for rubidium, potassium, and sodium at several inlet temperatures to obtain order of magnitude performance and weight of possible nuclear power plant systems. (W.L.H.)

Grimaldi, J.

1960-08-29T23:59:59.000Z

311

Compilation of emissions data for stationary reciprocating gas engines and gas turbines in use by the natural gas pipeline transmission industry  

SciTech Connect

This publication compiles the available exhaust emission data for stationary reciprocating engines and gas turbines used by the natural gas pipeline transmission industry into a single, easy-to-use source. Data in the original issue and the revisions were obtained from projects sponsored by the A.G.A. PRC and from inhouse projects within a number of the A.G.A. member companies. Additional data included in this reissue were obtained from additional emissions measurement projects sponsored by the A.G.A. PRC, and from A.G.A. member companies and natural gas engine manufacturers.

Urban, C.M.

1988-05-01T23:59:59.000Z

312

Demonstration plant engineering and design. Phase I: the pipeline gas demonstration plant. Volume 7. Plant Section 500 - shift/methanation  

Science Conference Proceedings (OSTI)

Contract No. EF-77-C-01-2542 between Conoco Inc. and the US Department of Energy provides for the design, construction, and operation of a demonstration plant capable of processing bituminous caking coals into clean pipeline quality gas. The project is currently in the design phase (Phase I). This phase is scheduled to be completed in June 1981. One of the major efforts of Phase I is the completion of the process design and the project engineering design of the Demonstration Plant. A report of the design effort is being issued in 24 volumes. This is Volume 7 which reports the design of Plant Section 500 - Shift/Methanation. The shift/methanation process is used to convert the purified synthesis gas from the Rectisol unit (Plant Section 400) into the desired high-Btu SNG product. This is accomplished in a series of fixed-bed adiabatic reactors. Water is added to the feed gas to the reactors to effect the requisite reactions. A nickel catalyst is used in the shift/methanation process, and the only reaction products are methane and carbon dioxide. The carbon dioxide is removed from the SNG in Plant Sectin 600 - CO/sub 2/ Removal. After carbon dioxide removal from the SNG, the SNG is returned to Plant Section 500 for final methanation. The product from the final methanation reactor is an SNG stream having a gross heating value of approximately 960 Btu per standard cubic foot. The shift/methanation unit at design conditions produces 19 Million SCFD of SNG from 60 Million SCFD of purified synthesis gas.

Not Available

1981-01-01T23:59:59.000Z

313

Engineering study of a 20 MW lead--acid battery energy storage demonstration plant. Final report for the period ending October 1976  

DOE Green Energy (OSTI)

The Research and Engineering Operation of Bechtel Corporation conducted an engineering study of a 20-MW lead--acid battery energy storage demonstration plant. Ten alternative designs were evaluated. Basically, the configurations proposed for the demonstration plants are those of the mature plants which would follow. The designs of the individual plants are based on the cell designs and the means used to house the cells. Initially, proposed cell designs from five manufacturers were considered. To conform with the level of effort allowed for this engineering study, two manufacturers' cells (one open-tank design and one sealed cell design) were selected by ERDA and Bechtel as being representative. These designs formed the basis for the detailed evaluation conducted in this study. The plant and battery configurations evaluated in the study are a large open-tank cell, configured in rows and housed in four buildings; a sealed cell, configured in a single layer of close packed rows in a single building; a sealed cell, configured in a three-tiered arrangement in a single building; and a sealed cell, configured with groups of cells housed in weatherproof modules and placed outdoors. Annual operating costs based on these mature plant costs show lead--acid load-leveling plants are generally not economically competitive with the alternatives when no consideration is given to their other possible benefits to the power system. However, application of credits (e.g., transmission line or spinning reserve credits) can make such plants economically competitive with gas turbine peaking units in specific situations. 46 figures, 25 tables. (RWR)

Not Available

1976-10-01T23:59:59.000Z

314

The analysis and specification of large high-pressure, high-temperature valves for combustion turbine protection in second-generation PFB power plants: Topical report  

SciTech Connect

The purpose of this study was to provide a specification for the high-pressure/high-temperature valves for turbine overspeed protection in a commercial-scale second-generation pressurized fluidized bed combustion (PFBC) power plant. In the event of a loss of external (generator) load, the gas turbine rapidly accelerates from its normal operating speed. Protection from excessive overspeed can be maintained by actuation of fuel isolation and air bypass valves. A design specification for these valves was developed by analyses of the turbine/compressor interaction during a loss of load and analyses of pressure and flow transients during operation of the overspeed protection valves. The basis for these analyses was the Phase 1 plant conceptual design prepared in 1987.

1994-08-01T23:59:59.000Z

315

Guidelines for Reducing the Time and Cost of Turbine-Generator Maintenance Overhauls and Inspections 2010--Volume 3: Balancing and A lignment  

Science Conference Proceedings (OSTI)

Up to 70% of the outages planned for conventional steam power plants involve work on the turbine. The challenge for the engineer is to improve performance and extend reliability, while eliminating unproductive activities from the maintenance outage schedule. This report provides general guidelines for planning and performing maintenance on steam turbines during outages.

2010-12-23T23:59:59.000Z

316

Guidelines for Reducing the Time and Cost of Turbine-Generator Maintenance Overhauls and Inspections -- 2011: Volume 2, Repair Proce dures  

Science Conference Proceedings (OSTI)

Up to 70% of the outages planned for conventional steam power plants involve work on the turbine. The challenge for the engineer is to improve performance and extend reliability while eliminating unproductive activities from the maintenance outage schedule. This report provides general guidelines for planning and performing maintenance on steam turbines during outages.

2012-07-31T23:59:59.000Z

317

Guidelines for Reducing the Time and Cost of Turbine-Generator Maintenance Overhauls and Inspections—2007: Volumes 2 and 4 Sup plemental Additions  

Science Conference Proceedings (OSTI)

Up to 70 of the outages planned for conventional steam power plants involve work on the turbine. The challenge for the engineer is to improve performance and extend reliability while eliminating unproductive activities from the maintenance outage schedule. This report provides general guidelines for planning and performing maintenance on steam turbines during outages.

2008-03-27T23:59:59.000Z

318

Guidelines for Reducing the Time and Cost of Turbine-Generator Maintenance Overhauls and Inspections-2006; Volume 1: General Practic es  

Science Conference Proceedings (OSTI)

Up to 70% of the outages planned for conventional steam power plants involve work on the turbine. The challenge for the engineer is to improve performance and extend reliability, while eliminating unproductive activities from the maintenance outage schedule. This report provides general guidelines for planning and performing maintenance on steam turbines during outages.

2007-03-30T23:59:59.000Z

319

Design of a Transonic Research Turbine Facility Ruolong Ma*  

E-Print Network (OSTI)

and performance of modern gas-turbine engines. A detailed address of the various opportunities for flow control throughout the gas-turbine engine in terms of their impact on each engine component was given by Lord et al.1 in the new Advanced Performance Gas Turbine Laboratory at the University of Notre Dame. II. Turbine Rig

Morris, Scott C.

320

Multi-pass cooling for turbine airfoils - Energy ...  

An airfoil for a turbine vane of a gas turbine engine. The airfoil includes an outer wall having pressure and suction sides, and a radially extending ...

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Rejuvenation of Service-Exposed in 738 Turbine Blades  

Science Conference Proceedings (OSTI)

are used as investment cast turbine blades in many aircraft gas turbine engines. In their conventionally cast polycrystalline equiaxed forms, these alloys derive ...

322

High-temperature Erosion Behavior of Aluminide-coated Turbine ...  

Science Conference Proceedings (OSTI)

The high-temperature erosion behavior of an aluminide-coated turbine blade ... The Tensile Property Of A Gas Turbine Engine Fan Blade And Casing Material.

323

Turbine-Generator Auxiliary Systems, Volume 2: Turbine Steam Seal System Maintenance Guide  

Science Conference Proceedings (OSTI)

The Turbine-Generator Auxiliary Systems, Volume 2: Turbine Steam Seal System Maintenance Guide provides nuclear and fossil plant personnel with operation and maintenance guidance on the turbine steam seal system components.

2006-12-14T23:59:59.000Z

324

Wind Turbines  

Energy.gov (U.S. Department of Energy (DOE))

Although all wind turbines operate on similar principles, several varieties are in use today. These include horizontal axis turbines and vertical axis turbines.

325

Resonant Vibrations Resulting from the Re-Engineering of a Constant-Speed 2-Bladed Turbine to a Variable-Speed 3-Bladed Turbine  

SciTech Connect

The CART3 (Controls Advanced Research Turbine, 3-bladed) at the National Wind Technology Center has recently been converted from a 2-bladed constant speed machine to a 3-bladed variable speed machine designed specically for controls research. The purpose of this conversion was to develop an advanced controls field-testing platform which has the more typical 3-bladed configuration. A result of this conversion was the emergence of several resonant vibrations, some of which initially prevented operation of the turbine until they could be explained and resolved. In this paper, the investigations into these vibrations are presented as 'lessons-learned'. Additionally, a frequency-domain technique called waterfall plotting is discussed and its usefulness in this research is illustrated.

Fleming, P.; Wright, A. D.; Finersh, L. J.

2010-12-01T23:59:59.000Z

326

Resonant Vibrations Resulting from the Re-Engineering of a Constant-Speed 2-Bladed Turbine to a Variable-Speed 3-Bladed Turbine  

DOE Green Energy (OSTI)

The CART3 (Controls Advanced Research Turbine, 3-bladed) at the National Wind Technology Center has recently been converted from a 2-bladed constant speed machine to a 3-bladed variable speed machine designed specically for controls research. The purpose of this conversion was to develop an advanced controls field-testing platform which has the more typical 3-bladed configuration. A result of this conversion was the emergence of several resonant vibrations, some of which initially prevented operation of the turbine until they could be explained and resolved. In this paper, the investigations into these vibrations are presented as 'lessons-learned'. Additionally, a frequency-domain technique called waterfall plotting is discussed and its usefulness in this research is illustrated.

Fleming, P.; Wright, A. D.; Finersh, L. J.

2010-12-01T23:59:59.000Z

327

Generation Maintenance Applications Center: Maintenance Guide for Horizontal Split-Casing Closed Cooling Water Pumps in Combined-Cyc le Combustion-Turbine Plants  

Science Conference Proceedings (OSTI)

This report identifies the failure modes and general maintenance requirements for horizontal split-casing closed cooling water pumps used in utility combined-cycle combustion-turbine power plants. Information in this report was provided and reviewed by member utilities. Manufacturers’ information and Electric Power Research Institute (EPRI) database information was used as a basis for the ...

2012-11-21T23:59:59.000Z

328

Turbine nozzle positioning system  

DOE Patents (OSTI)

A nozzle guide vane assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The nozzle guide vane assembly includes an outer shroud having a mounting leg with an opening defined therein, a tip shoe ring having a mounting member with an opening defined therein, a nozzle support ring having a plurality of holes therein and a pin positioned in the corresponding opening in the outer shroud, opening in the tip shoe ring and the hole in the nozzle support ring. A rolling joint is provided between metallic components of the gas turbine engine and the nozzle guide vane assembly. The nozzle guide vane assembly is positioned radially about a central axis of the gas turbine engine and axially aligned with a combustor of the gas turbine engine.

Norton, Paul F. (San Diego, CA); Shaffer, James E. (Maitland, FL)

1996-01-30T23:59:59.000Z

329

Turbine nozzle positioning system  

DOE Patents (OSTI)

A nozzle guide vane assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The nozzle guide vane assembly includes an outer shroud having a mounting leg with an opening defined therein, a tip shoe ring having a mounting member with an opening defined therein, a nozzle support ring having a plurality of holes therein and a pin positioned in the corresponding opening in the outer shroud, opening in the tip shoe ring and the hole in the nozzle support ring. A rolling joint is provided between metallic components of the gas turbine engine and the nozzle guide vane assembly. The nozzle guide vane assembly is positioned radially about a central axis of the gas turbine engine and axially aligned with a combustor of the gas turbine engine. 9 figs.

Norton, P.F.; Shaffer, J.E.

1996-01-30T23:59:59.000Z

330

Yale ME Turbine Test cell instructions Background  

E-Print Network (OSTI)

Yale ME Turbine Test cell instructions Background: The Turbine Technologies Turbojet engine combustion gas backflow into the lab space. Test Cell preparation: 1. Turn on Circuit breakers # 16 of the turbine and check a few items: o Open keyed access door on rear of Turbine enclosure o Check Jet A fuel

Haller, Gary L.

331

Alternative Fuel Pilot Plant & Hydrogen Internal Combustion Engine...  

NLE Websites -- All DOE Office Websites (Extended Search)

a model alternative fuel refueling system, dispensing hydrogen, compressed natural gas (CNG), and hydrogenCNG blends (HCNG). The plant is used daily to fuel vehicles operated in...

332

Recommendations to the NRC on human engineering guidelines for nuclear power plant maintainability  

SciTech Connect

This document contains human engineering guidelines which can enhance the maintainability of nuclear power plants. The guidelines have been derived from general human engineering design principles, criteria, and data. The guidelines may be applied to existing plants as well as to plants under construction. They apply to nuclear power plant systems, equipment and facilities, as well as to maintenance tools and equipment. The guidelines are grouped into seven categories: accessibility and workspace, physical environment, loads and forces, maintenance facilities, maintenance tools and equipment, operating equipment design, and information needs. Each chapter of the document details specific maintainability problems encountered at nuclear power plants, the safety impact of these problems, and the specific maintainability design guidelines whose application can serve to avoid these problems in new or existing plants.

Badalamente, R.V.; Fecht, B.A.; Blahnik, D.E.; Eklund, J.D.; Hartley, C.S.

1986-03-01T23:59:59.000Z

333

State University of New York at Buffalo Department of Mechanical and Aerospace Engineering.  

E-Print Network (OSTI)

demonstration reactor, a 300 kWe nuclear heated, nitrogen cooled machine designed to be truck transportable] Now we have some idea of a Gas Turbine Power plant, which base on the theory of Brayton Cycle. And we: This is an application of the Brayton cycle in nuclear power plant. This engine is called the Adams engine. It uses

Krovi, Venkat

334

Steam turbine control  

SciTech Connect

In a power plant which includes a steam turbine with main control valves for admitting steam into the steam turbine and a steam bypass with bypass control valves for diverting steam around the steam turbine directly into a condenser, it is necessary to coordinate the operation of the respective valves so that the steam turbine can be started, brought up to speed, synchronized with a generator and then loaded as smoothly and efficiently as possible. The present invention provides for such operation and, in addition, allows for the transfer of power plant operation from the so-called turbine following mode to the boiler following mode through the use of the sliding pressure concept. The invention described is particularly applicable to combined cycle power plants.

Priluck, D.M.; Wagner, J.B.

1982-05-11T23:59:59.000Z

335

Electrical generation plant design practice intern experience at Power Systems Engineering, Inc.: an internship report  

E-Print Network (OSTI)

A survey of the author's internship experience with Power Systems Engineering, Inc. during the period September 1980 through August, 1981 is presented. During this onr year internship, the author was assigned to two engineering projects. One involved design of a 480 MW power plant. The other was the design of a 8.2 MW induction generator for cogeneration. The author's activities during this period can be categorized into two major areas. First, technically oriented, he designed protective relaying and SCADA systems for the projects. Secondly, he assisted the Project Manager in project management activities such as project progress and cost control. The intent of this report is to prepare a training manual for PSE young engineers. It covers both technical guidelines for power plant design and nonacademic professional codes. Although this report is primarily written for young engineers, it can also be used as a reference by older and experienced engineers.

Lee, Ting-Zern Joe, 1950-

1981-12-01T23:59:59.000Z

336

554 IEEE JOURNAL OF OCEANIC ENGINEERING, VOL. 37, NO. 3, JULY 2012 Generator Systems for Marine Current Turbine  

E-Print Network (OSTI)

turbine. DFIG Doubly-fed induction generator. PMSG Permanent magnet synchronous generator. MPPT Maximum from a DFIG- and PMSG-based MCT. To high- light differences between the considered technologies, a vari

Paris-Sud XI, Université de

337

Laboratory Investigations of a Low-Swirl Injector with H2 and CH4 at Gas Turbine Conditions  

E-Print Network (OSTI)

Journal of Engineering for Gas Turbines and Power, 130 C. K.Journal of Engineering for Gas Turbines and Power, 130 (2) (of Engineering for Gas Turbines and Power-Transactions of

Cheng, R. K.

2009-01-01T23:59:59.000Z

338

Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine induustrial plant study  

SciTech Connect

Second-Generation Pressurized Fluidized Bed Combustion (PFBC) plants provide a coal-fired, high-efficiency, combined-cycle system for the generation of electricity and steam. The plants use lime-based sorbents in PFB combustors to meet environmental air standards without back-end gas desulfurization equipment. The second-generation system is an improvement over earlier PFBC concepts because it can achieve gas temperatures of 2100[degrees]F and higher for improved cycle efficiency while maintaining the fluidized beds at 1600[degrees]F for enhanced sulfur capture and minimum alkali release. Second-generation PFBC systems are capable of supplying the electric and steam process needs of industrial plants. The basic second-generation system can be applied in different ways to meet a variety of process steam and electrical requirements. To evaluate the potential of these systems in the industrial market, conceptual designs have been developed for six second-generation PFBC plants. These plants cover a range of electrical outputs from 6.3 to 41.5 MWe and steam flows from 46,067 to 442,337 lb/h. Capital and operating costs have been estimated for these six plants and for equivalent (in size) conventional, coal-fired atmospheric fluidized bed combustion cogeneration plants. Economic analyses were conducted to compare the cost of steam for both the second-generation plants and the conventional plants.

Shenker, J.; Garland, R.; Horazak, D.; Seifert, F.; Wenglarz, R.

1992-07-01T23:59:59.000Z

339

Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine industrial plant study  

SciTech Connect

Second-Generation Pressurized Fluidized Bed Combustion (PFBC) plants provide a coal-fired, high-efficiency, combined-cycle system for the generation of electricity and steam. The plants use lime-based sorbents in PFB combustors to meet environmental air standards without back-end gas desulfurization equipment. The second-generation system is an improvement over earlier PFBC concepts because it can achieve gas temperatures of 2100{degrees}F and higher for improved cycle efficiency while maintaining the fluidized beds at 1600{degrees}F for enhanced sulfur capture and minimum alkali release. Second-generation PFBC systems are capable of supplying the electric and steam process needs of industrial plants. The basic second-generation system can be applied in different ways to meet a variety of process steam and electrical requirements. To evaluate the potential of these systems in the industrial market, conceptual designs have been developed for six second-generation PFBC plants. These plants cover a range of electrical outputs from 6.3 to 41.5 MWe and steam flows from 46,067 to 442,337 lb/h. Capital and operating costs have been estimated for these six plants and for equivalent (in size) conventional, coal-fired atmospheric fluidized bed combustion cogeneration plants. Economic analyses were conducted to compare the cost of steam for both the second-generation plants and the conventional plants.

Shenker, J.; Garland, R.; Horazak, D.; Seifert, F.; Wenglarz, R.

1992-07-01T23:59:59.000Z

340

Method of Equivalencing for a Large Wind Power Plant with Multiple Turbine Representation: Preprint  

DOE Green Energy (OSTI)

This paper focuses on our effort to develop an equivalent representation of a Wind Power Plant collector system for power system planning studies.

Muljadi, E.; Pasupulati, S.; Ellis, A.; Kosterov, D.

2008-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

An Integrated Framework for Gas Turbine Based Power Plant Operational Modeling and Optimization .  

E-Print Network (OSTI)

??The deregulation of the electric power market introduced a strong element of competition. Power plant operators strive to develop advanced operational strategies to maximize the… (more)

Zhao, Yongjun

2005-01-01T23:59:59.000Z

342

NREL Develops Simulations for Wind Plant Power and Turbine Loads (Fact Sheet)  

DOE Green Energy (OSTI)

NREL researchers are the first to use a high-performance computing tool for a large-eddy simulation of an entire wind plant.

Not Available

2012-04-01T23:59:59.000Z

343

Evaluation of Cascaded Humidified Advanced Turbine (CHAT) Power Plant Options for TVA  

Science Conference Proceedings (OSTI)

Novel CHAT plants offer very high efficiency with superior cycling load capabilities. They integrate with gasification for significantly reduced capital cost.

1997-01-03T23:59:59.000Z

344

Assessment of ISLOCA risk-methodology and application to a combustion engineering plant  

Science Conference Proceedings (OSTI)

Inter-system loss-of-coolant accidents (ISLOCAs) have been identified as important contributors to offsite risk for some nuclear power plants. A methodology has been developed for identifying and evaluating plant-specific hardware designs, human factors issues, and accident consequence factors relevant to the estimation of ISOLOCA core damage frequency and risk. This report presents a detailed of description of the application of this analysis methodology to a Combustion Engineering plant.

Kelly, D.L.; Auflick, J.L.; Haney, L.N. [EG and G Idaho, Inc., Idaho Falls, ID (United States)

1992-04-01T23:59:59.000Z

345

Improvement of Plants for Selenium and Heavy Metal Phytoremediation Through Genetic Engineering  

Science Conference Proceedings (OSTI)

Phytoremediation -- the use of plants to remove, stabilize, or detoxify pollutants -- has proved very promising for the cleanup of trace elements from contaminated soil and water. Under the EPRI-Genetics Research Program, investigators successfully used genetic engineering to create seven genetically altered lines of plants with superior capacities for the phytoremediation of selenium (Se) and heavy metals, such as Molybdenum (Mo), Tungsten (W), and Cadmium (Cd). These transgenic plants are more tolerant...

1999-12-13T23:59:59.000Z

346

PlantView Engineering Analysis Module 2.119.001, User's Manual  

Science Conference Proceedings (OSTI)

The PlantViewEngineering Analysis Module is used to compare numerical results for similar equipment types across units, plants or departments. Using the flexibility of the web to seamlessly integrate information from multiple sources, users define Data Points to query ODBC databases for information. On a periodic basis the current value for the data point is obtained. Alarm & Data Quality processing is performed before the information is stored in PlantViewIf real-time values are not available, manual en...

2011-10-04T23:59:59.000Z

347

Guidelines for Reducing the Time and Cost of Turbine-Generator Maintenance Overhauls and Inspections-2012  

Science Conference Proceedings (OSTI)

Up to 70% of the outages planned for conventional steam power plants involve work on the turbine. The challenge for the engineer is to improve performance and extend reliability while eliminating unproductive activities from the maintenance outage schedule. This report provides general guidelines for planning and performing maintenance on steam turbines during outages.BackgroundAs a focus of innovative approaches and techniques, maintenance of aging steam ...

2012-12-12T23:59:59.000Z

348

Engineering and Economic Evaluation of Geothermal Power Plants  

Science Conference Proceedings (OSTI)

Geothermal power plants are commercially mature, dispatchable, base-loaded renewable energy sources. Most existing geothermal power plants exploit moderate- to high-temperature geothermal resources greater than 150C. These conditions exist in a few, relatively small geographic areas of the world, but these areas currently host thousands of megawatts of reliable, base-loaded renewable power, with thousands more megawatts in development. According to the Geothermal Resources Council, between 4000 and 7000 ...

2010-12-31T23:59:59.000Z

349

Plant Support Engineering: Periodic Review of G-STERI Evaluations  

Science Conference Proceedings (OSTI)

Establishing seismic critical design attributes for alternate replacement items is a cost concern for engineering groups and a scheduling challenge for procurement groups. Both cost and schedule improvements could be achieved if a body of generic seismic evaluations for frequently purchased items was developed.

2008-09-30T23:59:59.000Z

350

Fuel Effects on a Low-Swirl Injector for Lean Premixed Gas Turbines  

E-Print Network (OSTI)

of Engineering for Gas Turbines and Power-Transactions ofInjector for Lean Premixed Gas Turbines D. Littlejohn and R.11. IC ENGINE AND GAS TURBINE COMBUSTION SHORT TITLE: Fuel

Littlejohn, David

2008-01-01T23:59:59.000Z

351

Renewable Energy Technology Engineering and Economic Evaluation: Biomass Power Plants 2007  

Science Conference Proceedings (OSTI)

This study prepared an engineering and economic evaluation of 25-, 50-, and 100-MW biomass combustion power plants fired by 100% biomass fuel. The study estimated boiler efficiency, steam cycle heat rate, auxiliary power consumption, net plant heat rate, operation and maintenance (O&M) labor costs, maintenance materials, fuel needs, and raw material requirements. For both capital and annual O&M costs, the costs per kW or MWh are the lowest for 100-MW plants and the highest for 25-MW plants. Due to their ...

2008-03-31T23:59:59.000Z

352

Toughened Silcomp composites for gas turbine engine applications. Continuous fiber ceramic composites program: Phase I final report, April 1992--June 1994  

DOE Green Energy (OSTI)

The two main factors driving the development of new industrial gas turbine engine systems are fuel efficiency and reduced emissions. One method of providing improvements in both areas is to reduce the cooling air requirements of the hot gas path components. For this reason ceramic components are becoming increasingly attractive for gas turbine applications because of their greater refractoriness and oxidation resistance. Among the ceramics being considered, continuous fiber ceramic composites (CFCCs) are leading candidates because they combine the high temperature stability of ceramics with the toughness and damage tolerance of composites. The purpose of this program, which is part of DOE`s CFCC initiative, is to evaluate the use of CFCC materials as gas turbine engine components, and to demonstrate the feasibility of producing such components from Toughened Silcomp composites. Toughened silcomp is a CFCC material made by a reactive melt infiltration process, and consists of continuous SiC reinforcing fibers, with an appropriate fiber coating, in a fully dense matrix of SiC and Si. Based on the material physical properties, the material/process improvements realized in Phase 1, and the preliminary design analyses from Task 1, they feel the feasibility of fabricating Toughened Silcomp with the requisite physical and mechanical properties for the intended applications has been demonstrated. Remaining work for Phase 2 is to further improve the system for enhanced oxidation resistance, incorporate additional process controls to enhance the reproducibility of the material, transition the fabrication process to the selected vendors for scale-up, develop a more complete material property data base, including long-term mechanical behavior, and fabricate and test preliminary ``representative part`` specimens.

Corman, G.S.; Luthra, K.L.; Brun, M.K.; Meschter, P.J.

1994-07-01T23:59:59.000Z

353

Willamina Project Report : Indirect-Fired, Biomass-Fueled, Combined-Cycle, Gas Turbine Power Plant Using a Ceramic Heat Exchanger. Volume 1. Conceptual Plant Design and Analysis. Final report. [Contains Glossary  

SciTech Connect

A new technology for a wood-fueled electrical generation plant was evaluated. The proposed plant utilizes an indirectly fired gas turbine (IFGT) using a ceramic heat exchanger for high efficiency, due to its high temperature capability. The proposed plant utilizes a wood-fueled furnace with a ceramic heat exchanger to heat compressed air for a gas turbine. The configuration proposed is a combined cycle power plant that can produce 6 to 12 MW, depending upon the amount of wood used to supplementally fire a heat recovery steam generator (HRSG), which in turn powers a steam turbine. Drawings, specifications, and cost estimates based on a combined cycle analysis and wood-fired HRSG were developed. The total plant capital cost was estimated to be $13.1 million ($1640/kW). The heat rate for a 8-MW plant was calculated to be 10,965 Btu/kW when using wood residues with a 42% moisture content. Levelized electric energy costs were estimated to be 6.9 cents/kWh.

F.W. Braun Engineers.

1984-05-01T23:59:59.000Z

354

Proposal for the Award of a Contract for the Supply and Installation of a gas Turbine for Combined Generation of Electricity and Heat in the Heating Plant on the Meyrin Site  

E-Print Network (OSTI)

Proposal for the Award of a Contract for the Supply and Installation of a gas Turbine for Combined Generation of Electricity and Heat in the Heating Plant on the Meyrin Site

1994-01-01T23:59:59.000Z

355

Preliminary Economic and Engineering Evaluation of the Foster Wheeler Advanced Pressurized Fluidized-Bed Combustor (PFBC) Technology with Advanced Turbine System (ATS) Gas Turbines  

Science Conference Proceedings (OSTI)

For new coal-based power plants to be competitive, it is essential that their capital cost be reduced. Additionally, they must utilize coal in a highly efficient, cost-effective, environmentally superior manner. One of the most cost-competitive coal-based power plant technologies is believed to be an air-blown combined cycle that incorporates a partial gasifier and a pressurized char combustor. This report presents preliminary results from the evaluation of one such technology, the Advanced Pressurized F...

1998-12-30T23:59:59.000Z

356

Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry An ENERGY STAR(R) Guide for Energy and Plant Managers  

E-Print Network (OSTI)

Furnace Gas Firing Gas Turbine, November 2004. Konijnenburg,10.3) Steam injected gas turbine High-temperature CHP Steaminclude steam turbines, gas turbines, reciprocating engines,

Worrell, Ernst

2011-01-01T23:59:59.000Z

357

The Robust Gas Turbine Project M.I.T. Gas Turbine Laboratory  

E-Print Network (OSTI)

1 The Robust Gas Turbine Project M.I.T. Gas Turbine Laboratory Prof. David Darmofal, Prof. Daniel and in-service conditions is a key factor in gas turbine product quality. While a given design may these improved engines. The M.I.T. Gas Turbine Laboratory (GTL) has a long history of developing advanced

Waitz, Ian A.

358

Hot gas cleanup and gas turbine aspects of an advanced PFBC power plant  

SciTech Connect

The overall objective of the second-generation PFBC development program is to advance this concept to a commercial status. Three major objectives of the current Phase 2 program activities are to: Separately test key components of the second-generation PFBC power plant at sub-scale to ascertain their performance characteristics, Revise the commercial plant performance and economic predictions where necessary, Prepare for a 1.6 MWe equivalent Phase 3 integrated subsystem test of the key components. The key components of the plant, with respect to development risk, are the carbonizer, the circulating PFBC unit, the ceramic barrier filter, and the topping combustor. This paper reports on the development and testing of one key component -- the ceramic barrier filter for the carbonizer fuel gas. The objective of the Phase 2 carbonizer ceramic barrier filter testing has been to confirm filter performance and operability in the carbonizer fuel gas environment.

Robertson, A. (Foster Wheeler Development Corp., Livingston, NJ (United States)); Newby, R.A.; Alvin, M.A.; Bachovchin, D.M.; Bruck, G.J.; Smeltzer, E.E. (Westinghouse Electric Corp., Pittsburgh, PA (United States). Science and Technology Center)

1992-01-01T23:59:59.000Z

359

Charts estimate gas-turbine site performance  

SciTech Connect

Nomographs have been developed to simplify site performance estimates for various types of gas turbine engines used for industrial applications. The nomographs can provide valuable data for engineers to use for an initial appraisal of projects where gas turbines are to be considered. General guidelines for the selection of gas turbines are also discussed. In particular, site conditions that influence the performance of gas turbines are described.

Dharmadhikari, S.

1988-05-09T23:59:59.000Z

360

Use of GTE-65 gas turbine power units in the thermal configuration of steam-gas systems for the refitting of operating thermal electric power plants  

SciTech Connect

Thermal configurations for condensation, district heating, and discharge steam-gas systems (PGU) based on the GTE-65 gas turbine power unit are described. A comparative multivariant analysis of their thermodynamic efficiency is made. Based on some representative examples, it is shown that steam-gas systems with the GTE-65 and boiler-utilizer units can be effectively used and installed in existing main buildings during technical refitting of operating thermal electric power plants.

Lebedev, A. S.; Kovalevskii, V. P. ['Leningradskii Metallicheskii Zavod', branch of JSC 'Silovye mashiny' (Russian Federation); Getmanov, E. A.; Ermaikina, N. A. ['Institut Teploenergoproekt', branch of JSC 'Inzhenernyi tsentr EES' (Russian Federation)

2008-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Design of experiment and Montecarlo simulation as support for gas turbine power plant availabilty estimation  

Science Conference Proceedings (OSTI)

Maintenance is an important aspect in order to guarantee the efficiency of industrial facilities. For power plants the high availability ratios can be obtained only with preventive maintenance but the result costs increases rapidly. In order to reduce ... Keywords: design of experiment, fuzzy logic, model estimation, montecarlo simulation, reliability

Enrico Briano; Claudia Caballini; Pietro Giribone; Roberto Revetria

2010-05-01T23:59:59.000Z

362

Plant Support Engineering: Guidance for Replacing Heat Exchangers at Nuclear Power Plants with Plate Heat Exchangers  

Science Conference Proceedings (OSTI)

This report is the first of a "suite" of guidelines that will enable licensees to be "intelligent customers" when faced with replacing major plant components like heat exchangers to support license renewal and plant life extension.

2006-07-31T23:59:59.000Z

363

Forecasting and strategic inventory placement for gas turbine aftermarket spares  

E-Print Network (OSTI)

This thesis addresses the problem of forecasting demand for Life Limited Parts (LLPs) in the gas turbine engine aftermarket industry. It is based on work performed at Pratt & Whitney, a major producer of turbine engines. ...

Simmons, Joshua T. (Joshua Thomas)

2007-01-01T23:59:59.000Z

364

Plant Engineering: Advanced Nuclear Plant Cable System Design and Installation Concepts to Assure Longevity  

Science Conference Proceedings (OSTI)

Although the electrical cable systems for existing nuclear power plants have functioned well for up to 40 years, the desired service life for new plants is 60 or more years. Experience with existing plants indicates that relatively small changes during the design and construction of nuclear plants will lead to longer cable system lives and greater ease of testing and assessment of cables to verify their remaining service life. This report describes those changes and provides recommendations for their imp...

2012-04-16T23:59:59.000Z

365

Engineering and Economic Evaluation of Low-Temperature Binary Geothermal Power Plants  

Science Conference Proceedings (OSTI)

Geothermal power plants are commercially mature, dispatchable, base-loaded renewable energy sources. Most existing geothermal power plants exploit moderate-to-high-temperature geothermal resources greater than 150C (300F). These conditions exist in a few relatively small geographic areas of the world, which has limited the amount of geothermal deployment. Emerging technologies, new exploration and drilling techniques, and pre-engineered systems are contributing to make generation from lower-temperature r...

2010-12-31T23:59:59.000Z

366

Program on Technology Innovation: Small Torrefaction Plants Front End Engineering and Design  

Science Conference Proceedings (OSTI)

This report is produced under the EPRI Program on Technology Innovation, and analyzes the viability of developing small torrefaction plants, to be locally deployed close to biomass resource areas, to reduce logistic cost associated to hauling wet raw biomass long distances to large centralized facilities, for production of torrefied chips and pellets. Two plant sizes were selected for a Front Engineering and Design Analysis: 1) A 5/tons/hour product capacity and 2) a 2tons/hour product capacity. The torr...

2010-12-23T23:59:59.000Z

367

Combined gas turbine and steam turbine power station  

SciTech Connect

In order to operate a gas turbine and steam turbine plant with a high temperature at the inlet to the gas turbine plant, the parts located in the hot-gas stream of the gas turbine being steam-cooled, and the cooling steam, thereby raised to a higher temperature, being fed to the steam turbine for further expansion, it is proposed that the waste heat from the gas turbine be led through a two-pressure waste heat boiler, and that the steam, generated in this boiler, be slightly superheated in a cooling-steam superheater, and fed to the hollow inlet vanes and to the rotor blades, which are likewise hollow, the steam, strongly superheated during this cooling process, then being admixed to the steam coming from the intermediate superheater, and being fed to the low-pressure section of the steam turbine.

Mukherjee, D.

1984-01-10T23:59:59.000Z

368

Advanced techniques for safety analysis applied to the gas turbine control system of ICARO co-generative plant  

E-Print Network (OSTI)

The paper describes two complementary and integrable approaches, a probabilistic one and a deterministic one, based on classic and advanced modelling techniques for safety analysis of complex computer based systems. The probabilistic approach is based on classical and innovative probabilistic analysis methods. The deterministic approach is based on formal verification methods. Such approaches are applied to the gas turbine control system of ICARO co generative plant, in operation at ENEA CR Casaccia. The main difference between the two approaches, behind the underlining different theories, is that the probabilistic one addresses the control system by itself, as the set of sensors, processing units and actuators, while the deterministic one also includes the behaviour of the equipment under control which interacts with the control system. The final aim of the research, documented in this paper, is to explore an innovative method which put the probabilistic and deterministic approaches in a strong relation to overcome the drawbacks of their isolated, selective and fragmented use which can lead to inconsistencies in the evaluation results. 1.

Ro Bologna; Ester Ciancamerla; Piero Incalcaterra; Michele Minichino; Andrea Bobbio; Università Del Piemonte Orientale; Enrico Tronci

2001-01-01T23:59:59.000Z

369

Plant Engineering: Environmental Qualification Training Modules for Engineering and Maintenance Personnel  

Science Conference Proceedings (OSTI)

Two computer based training modules introduce environmental qualification (EQ) requirements to maintenance personnel and engineering personnel. The maintenance module describes environmental qualification, its purpose, and how it is performed. Maintenance personnel gain an understanding of why specific equipment configurations and maintenance activities are critical to assuring equipment function under accident conditions. With this knowledge, maintenance personnel will be more likely to keep EQ componen...

2011-09-15T23:59:59.000Z

370

Ceramic turbine nozzle  

DOE Patents (OSTI)

A turbine nozzle and shroud assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The metallic components having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine nozzle vane assembly. The turbine nozzle vane assembly includes a plurality of segmented vane defining a first vane segment and a second vane segment. Each of the first and second vane segments having a vertical portion. Each of the first vane segments and the second vane segments being positioned in functional relationship one to another within a recess formed within an outer shroud and an inner shroud. The turbine nozzle and shroud assembly provides an economical, reliable and effective ceramic component having a preestablished rate of thermal expansion being less than the preestablished rate of thermal expansion of the other component.

Shaffer, James E. (Maitland, FL); Norton, Paul F. (San Diego, CA)

1996-01-01T23:59:59.000Z

371

Ceramic Cerami Turbine Nozzle  

SciTech Connect

A turbine nozzle vane assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The metallic components having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine nozzle vane assembly. The turbine nozzle vane assembly includes an outer shroud and an inner shroud having a plurality of horizontally segmented vanes therebetween being positioned by a connecting member positioning segmented vanes in functional relationship one to another. The turbine nozzle vane assembly provides an economical, reliable and effective ceramic component having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the other component.

Boyd, Gary L. (Alpine, CA)

1997-04-01T23:59:59.000Z

372

Ceramic turbine nozzle  

DOE Patents (OSTI)

A turbine nozzle and shroud assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The metallic components have a preestablished rate of thermal expansion greater than the preestablished rate of thermal expansion of the turbine nozzle vane assembly. The turbine nozzle vane assembly includes a plurality of segmented vane defining a first vane segment and a second vane segment, each of the first and second vane segments having a vertical portion, and each of the first vane segments and the second vane segments being positioned in functional relationship one to another within a recess formed within an outer shroud and an inner shroud. The turbine nozzle and shroud assembly provides an economical, reliable and effective ceramic component having a preestablished rate of thermal expansion being less than the preestablished rate of thermal expansion of the other component. 4 figs.

Shaffer, J.E.; Norton, P.F.

1996-12-17T23:59:59.000Z

373

Upgrade of Multiple Boiler/Turbine Plant to Microprocessor Control- A Case History  

E-Print Network (OSTI)

The Utilities Operation of the General Electric - Erie Plant is responsible for providing all energy for the Plant. The primary source is coal, which is used in four boilers to produce steam for the generation of electricity, as well as heat for production and building environment. Three years ago, the obsolete pneumatic controls utilized in the Power Station were replaced by the latest microprocessor-based distributed control Energy Management System. This paper reviews this replacement and is divided into four parts as follows: A. Description of the system selected. B. Actual savings during first three years. C. Expansion of the system during past three years. D. Future expansion plans for the Energy Management System.

Schenk, J. R.; Sommer, A. C.

1985-05-01T23:59:59.000Z

374

Integrated low emissions cleanup system for direct coal fueled turbines (moving bed, fluid bed contactor/ceramic filter)  

SciTech Connect

The United States Department of Energy, Morgantown Energy Research Center (DOE/METC), is sponsoring the development of direct coal-fired turbine power plants as part of their Heat Engines program. A major technical challenge remaining for the development of the direct coal-fired turbine is high-temperature combustion gas cleaning to meet environmental standards for sulfur oxides and particulate emissions, as well as to provide acceptable turbine life. The Westinghouse Electric Corporation, Science Technology Center, is evaluating two Integrated Low Emissions Cleanup (ILEC) concepts that have been configured to meat this technical challenge: a baseline ceramic barrier filter ILEC concept, and a fluidized bed ILEC concept. These ILEC concepts simultaneously control sulfur, particulate, and alkali contaminants in the high-pressure combustion gases at turbine inlet temperatures up to 2300[degree]F. This document reports the status of a program in the nineteenth quarter to develop this ILEC technology for direct coal-fired turbine power plants.

Newby, R.A.; Alvin, M.A.; Bachovchin, D.M.; Yang, W.C.; Smeltzer, E.E.; Lippert, T.E.

1992-10-20T23:59:59.000Z

375

Gas Turbine Procurement: 1988 Workshop  

Science Conference Proceedings (OSTI)

Specifying the levels of reliability and availability needed for new gas turbines or combined-cycle plants can help utilities meet plant operating requirements. Equipment specifiers can use information presented in this workshop to help them formulate more effective specifications for new gas turbine generating equipment.

1989-04-06T23:59:59.000Z

376

Turbine blade vibration dampening  

DOE Patents (OSTI)

The present turbine wheel assembly increases component life and turbine engine longevity. The combination of the strap and the opening combined with the preestablished area of the outer surface of the opening and the preestablished area of the outer circumferential surface of the strap and the friction between the strap and the opening increases the life and longevity of the turbine wheel assembly. Furthermore, the mass ``M`` or combined mass ``CM`` of the strap or straps and the centrifugal force assist in controlling vibrations and damping characteristics. 5 figs.

Cornelius, C.C.; Pytanowski, G.P.; Vendituoli, J.S.

1997-07-08T23:59:59.000Z

377

Turbine blade vibration dampening  

DOE Patents (OSTI)

The present turbine wheel assembly increases component life and turbine engine longevity. The combination of the strap and the opening combined with the preestablished area of the outer surface of the opening and the preestablished area of the outer circumferential surface of the strap and the friction between the strap and the opening increases the life and longevity of the turbine wheel assembly. Furthermore, the mass "M" or combined mass "CM" of the strap or straps and the centrifugal force assist in controlling vibrations and damping characteristics.

Cornelius, Charles C. (San Diego, CA); Pytanowski, Gregory P. (San Diego, CA); Vendituoli, Jonathan S. (San Diego, CA)

1997-07-08T23:59:59.000Z

378

Plant Support Engineering: Guidance for Replacing Feedwater Heaters at Nuclear Power Plants  

Science Conference Proceedings (OSTI)

Utilities continue to pursue license renewal applications and power uprates, and these initiatives are being undertaken in an aging fleet of nuclear plants. Many plants are facing the necessity of replacing feedwater heaters to support these initiatives. However, industry expertise to support such activities has diminished since the days of plant construction8212there are fewer qualified vendors and equipment manufacturers, materials might have changed, and licensees are typically not staffed for these m...

2007-07-26T23:59:59.000Z

379

Plant Support Engineering: Guidance for Replacing Inverters and Battery Chargers at Nuclear Power Plants  

Science Conference Proceedings (OSTI)

Utilities are continuing to pursue license renewal applications and power uprates, and these initiatives are being undertaken on an aging fleet of nuclear plants. Many plants must replace inverters and battery chargers to support these initiatives. However, industry expertise to support such activities has diminished since the days of plant constructionthere are fewer qualified vendors and equipment manufacturers, materials have changed in many cases, and licensees are typically not currently staffed for...

2008-10-29T23:59:59.000Z

380

Plant Support Engineering: Guidance for Planned Replacement of Large Power Transformers at Nuclear Power Plants  

Science Conference Proceedings (OSTI)

Utilities continue to pursue license renewal applications and power uprates, and these initiatives are being undertaken on an aging fleet of nuclear plants. Many plants are facing the necessity of replacing large power transformers to support these initiatives. However, industry expertise to support such activities has diminished since the days of plant construction8212there are fewer qualified vendors and equipment manufacturers, materials and standards might have changed, and licensees are typically no...

2007-11-02T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Engineered plant biomass particles coated with bioactive agents  

DOE Patents (OSTI)

Plant biomass particles coated with a bioactive agent such as a fertilizer or pesticide, characterized by a length dimension (L) aligned substantially parallel to a grain direction and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. In particular, the L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers, the W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers, and the L.times.W dimensions define a pair of substantially parallel top and bottom surfaces.

Dooley, James H; Lanning, David N

2013-07-30T23:59:59.000Z

382

Snubber assembly for turbine blades  

DOE Patents (OSTI)

A snubber associated with a rotatable turbine blade in a turbine engine, the turbine blade including a pressure sidewall and a suction sidewall opposed from the pressure wall. The snubber assembly includes a first snubber structure associated with the pressure sidewall of the turbine blade, a second snubber structure associated with the suction sidewall of the turbine blade, and a support structure. The support structure extends through the blade and is rigidly coupled at a first end portion thereof to the first snubber structure and at a second end portion thereof to the second snubber structure. Centrifugal loads exerted by the first and second snubber structures caused by rotation thereof during operation of the engine are at least partially transferred to the support structure, such that centrifugal loads exerted on the pressure and suctions sidewalls of the turbine blade by the first and second snubber structures are reduced.

Marra, John J

2013-09-03T23:59:59.000Z

383

Guidelines for Reducing the Time and Cost of Turbine-Generator Maintenance Overhauls and Inspections–2013: Supplemental Addition  

Science Conference Proceedings (OSTI)

Up to 70% of the outages planned for conventional steam power plants involve work on the turbine. The challenge for the engineer is to improve performance and extend reliability while eliminating unproductive activities from the maintenance outage schedule. This report provides general guidelines for planning and performing maintenance on steam turbines during outages.BackgroundAs a focus of innovative approaches and techniques, maintenance of aging steam ...

2013-12-17T23:59:59.000Z

384

Guidelines for Reducing the Time and Cost of Turbine-Generator Maintenance Overhauls and Inspections, Volume 1: General Practices  

Science Conference Proceedings (OSTI)

Up to 70% of the outages planned for conventional steam power plants involve work on the turbine. The challenge for the engineer is to improve performance and extend reliability, while eliminating unproductive activities from the maintenance outage schedule. This report provides general guidelines for planning and performing maintenance on steam turbines during outages.BackgroundAs a focus of innovative approaches and techniques, maintenance of aging steam ...

2013-12-23T23:59:59.000Z

385

Phytosequestration: Carbon biosequestration by plants and the prospects of genetic engineering  

SciTech Connect

Photosynthetic assimilation of atmospheric carbon dioxide by land plants offers the underpinnings for terrestrial carbon (C) sequestration. A proportion of the C captured in plant biomass is partitioned to roots, where it enters the pools of soil organic C and soil inorganic C and can be sequestered for millennia. Bioenergy crops serve the dual role of providing biofuel that offsets fossil-fuel greenhouse gas (GHG) emissions and sequestering C in the soil through extensive root systems. Carbon captured in plant biomass can also contribute to C sequestration through the deliberate addition of biochar to soil, wood burial, or the use of durable plant products. Increasing our understanding of plant, microbial, and soil biology, and harnessing the benefits of traditional genetics and genetic engineering, will help us fully realize the GHG mitigation potential of phytosequestration.

Jansson, C.; Wullschleger, S.D.; Kalluri, U.C.; Tuskan, G.A.

2010-07-15T23:59:59.000Z

386

Alternative Fuel Pilot Plant & Hydrogen Internal Combustion Engine Vehicle Testing  

NLE Websites -- All DOE Office Websites (Extended Search)

RESEARCH & DEVELOPMENT RESEARCH & DEVELOPMENT Science Arizona Public Service Alternative Fuel Pilot Plant & Hydrogen Internal Combustion Engine Vehicle Testing Alternative Fuel Pilot Plant The Arizona Public Service Alternative Fuel Pilot Plant is a model alternative fuel refueling system, dispensing hydrogen, compressed natural gas (CNG), and hydrogen/ CNG blends (HCNG). The plant is used daily to fuel vehicles operated in Arizona Public Service's fleet. Hydrogen Subsystem The plant's hydrogen system consists of production, compression, storage, and dispensing. The hydrogen produced is suitable for use in fuel cell-powered vehicles, for which the minimum hydrogen purity goal is 99.999%. Hydrogen is produced using an electrolysis process that separates water into hydrogen and oxygen. At present, the hydrogen is

387

Micro-turbine design point definition using optimization techniques.  

E-Print Network (OSTI)

??During a gas turbine development phase an important engineer task is to find the appropriate engine design point that meet all required specifications. This task… (more)

Diogo Ferraz Cavalca

2012-01-01T23:59:59.000Z

388

Turbine nozzle attachment system  

DOE Patents (OSTI)

A nozzle guide vane assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The nozzle guide vane assembly includes a pair of legs extending radially outwardly from an outer shroud and a pair of mounting legs extending radially inwardly from an inner shroud. Each of the pair of legs and mounting legs have a pair of holes therein. A plurality of members attached to the gas turbine engine have a plurality of bores therein which axially align with corresponding ones of the pair of holes in the legs. A plurality of pins are positioned within the corresponding holes and bores radially positioning the nozzle guide vane assembly about a central axis of the gas turbine engine.

Norton, Paul F. (San Diego, CA); Shaffer, James E. (Maitland, FL)

1995-01-01T23:59:59.000Z

389

Turbine nozzle attachment system  

DOE Patents (OSTI)

A nozzle guide vane assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and is attached to conventional metallic components. The nozzle guide vane assembly includes a pair of legs extending radially outwardly from an outer shroud and a pair of mounting legs extending radially inwardly from an inner shroud. Each of the pair of legs and mounting legs have a pair of holes therein. A plurality of members attached to the gas turbine engine have a plurality of bores therein which axially align with corresponding ones of the pair of holes in the legs. A plurality of pins are positioned within the corresponding holes and bores radially positioning the nozzle guide vane assembly about a central axis of the gas turbine engine. 3 figs.

Norton, P.F.; Shaffer, J.E.

1995-10-24T23:59:59.000Z

390

Gas Turbine World performance specs 1984  

SciTech Connect

The following topics are discussed: working insights into the performance specifications; performance and design characteristics of electric power plants, mechanical drive gas turbines, and marine propulsion gas turbines; and performance calculations.

1984-03-01T23:59:59.000Z

391

CFD Modelling of Generic Gas Turbine Combustor.  

E-Print Network (OSTI)

??New computational methods are continuously developed in order to solve problems in different engineering fields. One of these fields is gas turbines, where the challenge… (more)

KHODABANDEH, AMIR

2011-01-01T23:59:59.000Z

392

WEB RESOURCE: Chromalloy Gas Turbine Corporation - TMS  

Science Conference Proceedings (OSTI)

Feb 8, 2007 ... Chromalloy Gas Turbine Corporation is a pioneer in the high temperature coating of jet aircraft engine vanes and blades. Through ...

393

Advanced Materials and Processes for Gas Turbines  

Science Conference Proceedings (OSTI)

Jul 1, 2003 ... Out of Print. Description These proceedings from the United Engineering Foundation's Advanced Materials and Processes for Gas Turbines ...

394

NETL: Turbines - About the Turbine Program  

NLE Websites -- All DOE Office Websites (Extended Search)

Turbines About the Turbine Program Siemens Turbine Turbines have been the world's energy workhorses for generations, harkening back to primitive devices such as waterwheels (2,000...

395

Laboratory Investigations of a Low-Swirl Injector with H2 and CH4 at Gas Turbine Conditions  

E-Print Network (OSTI)

of Engineering for Gas Turbines and Power, 130 C. K. Chan,support of the U.S. DOE Turbines program is also gratefullyof Engineering for Gas Turbines and Power, 130 (2) (2008)

Cheng, R. K.

2009-01-01T23:59:59.000Z

396

Geothermal turbine  

SciTech Connect

A turbine for the generation of energy from geothermal sources including a reaction water turbine of the radial outflow type and a similar turbine for supersonic expansion of steam or gases. The rotor structure may incorporate an integral separator for removing the liquid and/or solids from the steam and gas before the mixture reaches the turbines.

Sohre, J.S.

1982-06-22T23:59:59.000Z

397

Influence of hole shape on the performance of a turbine vane endwall film-cooling scheme  

E-Print Network (OSTI)

Rising combustor exit temperatures in gas turbine engines necessitate active cooling for the downstream industrial gas turbine engines. One means of achieving this goal is to increase the combustion temper- ature are so high in today's gas turbine engines that in the absence of complex cooling schemes the turbine

Thole, Karen A.

398

World electric power plants database  

SciTech Connect

This global database provides records for 104,000 generating units in over 220 countries. These units include installed and projected facilities, central stations and distributed plants operated by utilities, independent power companies and commercial and self-generators. Each record includes information on: geographic location and operating company; technology, fuel and boiler; generator manufacturers; steam conditions; unit capacity and age; turbine/engine; architect/engineer and constructor; and pollution control equipment. The database is issued quarterly.

NONE

2006-06-15T23:59:59.000Z

399

Plant Engineering: Electrical Cable Test Applicability Matrix for Nuclear Power Plants  

Science Conference Proceedings (OSTI)

When assessing cable degradation or failure assessment, using the correct test and assessment methodology is critical to obtaining the correct answer. Many in-plant and laboratory tests exist. Some apply to the cable types used in nuclear plants. Some apply only to distribution cables. Most have pertinence to only one issue or even one cable design. This report provides a correlation between specific cable problems and the appropriate tests that may be used to resolve the issue. The report starts with su...

2011-12-23T23:59:59.000Z

400

Diode laser measurement of H?O, CO?, and temperature in gas turbine exhaust through the application of wavelength modulation spectroscopy  

E-Print Network (OSTI)

sensor for measurements of gas turbine exhaust temperature."O, CO 2 , and Temperature in Gas Turbine Exhaust through theview of UCSD power plant gas turbine systems 31

Leon, Marco E.

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Tubular and Sector Heat Pipes with Interconnected Branches for Gas Turbine and/or Compressor Cooling.  

E-Print Network (OSTI)

?? Designing turbines for either aerospace or power production is a daunting task for any heat transfer scientist or engineer. Turbine designers are continuously pursuing… (more)

Reding, Brian D., II

2013-01-01T23:59:59.000Z

402

DoE Turbine Conference Poster 2010-10-13 v7  

NLE Websites -- All DOE Office Websites (Extended Search)

TOMO sm Lithographic Molding for Turbine Blade Cooling DoE Phase II SBIR - Advanced Cooling for Turbine Engines Solid Model 1180 Seminole Trail * Charlottesville, VA 22901 *...

403

Offshore Wind Turbines: Some Technical Challenges  

E-Print Network (OSTI)

1 Offshore Wind Turbines: Some Technical Challenges Prof. Guy Houlsby FREng Oxford University House engineers concerned with installation of offshore wind turbines. The author is Professor of Civil solved, a DTI and EPSRC-sponsored research programme on foundations for wind turbines will be briefly

Houlsby, Guy T.

404

NEXT GENERATION TURBINE SYSTEM STUDY  

DOE Green Energy (OSTI)

Rolls-Royce has completed a preliminary design and marketing study under a Department of Energy (DOE) cost shared contract (DE-AC26-00NT40852) to analyze the feasibility of developing a clean, high efficiency, and flexible Next Generation Turbine (NGT) system to meet the power generation market needs of the year 2007 and beyond. Rolls-Royce evaluated the full range of its most advanced commercial aerospace and aeroderivative engines alongside the special technologies necessary to achieve the aggressive efficiency, performance, emissions, economic, and flexibility targets desired by the DOE. Heavy emphasis was placed on evaluating the technical risks and the economic viability of various concept and technology options available. This was necessary to ensure the resulting advanced NGT system would provide extensive public benefits and significant customer benefits without introducing unacceptable levels of technical and operational risk that would impair the market acceptance of the resulting product. Two advanced cycle configurations were identified as offering significant advantages over current combined cycle products available in the market. In addition, balance of plant (BOP) technologies, as well as capabilities to improve the reliability, availability, and maintainability (RAM) of industrial gas turbine engines, have been identified. A customer focused survey and economic analysis of a proposed Rolls-Royce NGT product configuration was also accomplished as a part of this research study. The proposed Rolls-Royce NGT solution could offer customers clean, flexible power generation systems with very high efficiencies, similar to combined cycle plants, but at a much lower specific cost, similar to those of simple cycle plants.

Frank Macri

2002-02-28T23:59:59.000Z

405

Turbines in the sky  

SciTech Connect

Gas turbines are being investigated as power sources for the proposed Star Wars weapons flatforms. The gas turbine engine offers the best opportunity for exploiting the high-temperature potential of both nuclear and chemical combustion. The use of mature gas turbine technology and existing materials would result in highly reliable PCUs capable of meeting SDI's requirements. However, operation under the temperature limits imposed by existing materials would result in a prohibitively heavy system. Cooled blades would somewhat increase temperature capability; however the turbine's mass, though reduced, would still be unacceptably large. The greatest improvements would result from the ability to operate at temperatures of up to 2000 K, pressures up to 14 MPa, and stress up to 690 MPa.

Boyle, R.V.; Riple, J.C.

1987-07-01T23:59:59.000Z

406

Introductory Human Factors Engineering Training Course for Operating Nuclear Power Plant Personnel  

Science Conference Proceedings (OSTI)

This report provides training materials for a one-day course in human factors engineering (HFE). The course is intended for utility personnel involved in modernizing operating nuclear power plant (NPP) designs and is also useful for vendors and other stakeholders. The primary focus of the HFE training is the main control room and its human-system interfaces (HSIs). In addition, it addresses other operator work locations such as the remote shutdown station, local control stations, and emergency ...

2013-05-01T23:59:59.000Z

407

Compressed Air Energy Storage: Proven US CAES Plant Cost Achievements and Potential Engineering, Design & Project Management Based C ost Reductions  

Science Conference Proceedings (OSTI)

Compressed Air Energy Storage (CAES) is a market ready technology that can play a valuable role in enhancing grid flexibility for variable generation integration. Relative to combustion turbines, CAES provides additional benefits and value streams, such as potential classification as a transmission asset, lower emissions, superior regulation service, reduction of wind spillage and in other ways improving wind plant economics. Although high cost estimates for CAES circulate in the industry, the first ...

2012-12-20T23:59:59.000Z

408

Gas Turbine Manufacturers Perspective  

NLE Websites -- All DOE Office Websites (Extended Search)

Viability and Experience of IGCC From a Viability and Experience of IGCC From a Gas Turbine Manufacturers Perspective ASME - IGCC ASME - IGCC Turbo Turbo Expo Expo June 2001 June 2001 GE Power Systems g Klaus Brun, Ph.D. - Manager Process Power Plant Product & Market Development Robert M. Jones - Project Development Manager Process Power Plants Power Systems Power Systems General Electric Company General Electric Company ABSTRACT GE Power Systems g Economic Viability and Experience of IGCC From a Gas Turbine Manufacturers Perspective High natural gas fuel gas prices combined with new technology developments have made IGCC a competitive option when compared to conventional combined cycle or coal steam turbine cycles. Although the initial investment costs for an IGCC plant are still comparatively high, the low

409

Industrial Gas Turbines | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Industrial Gas Turbines Industrial Gas Turbines Industrial Gas Turbines November 1, 2013 - 11:40am Addthis A gas turbine is a heat engine that uses high-temperature, high-pressure gas as the working fluid. Part of the heat supplied by the gas is converted directly into mechanical work. High-temperature, high-pressure gas rushes out of the combustor and pushes against the turbine blades, causing them to rotate. In most cases, hot gas is produced by burning a fuel in air. This is why gas turbines are often referred to as "combustion" turbines. Because gas turbines are compact, lightweight, quick-starting, and simple to operate, they are used widely in industry, universities and colleges, hospitals, and commercial buildings. Simple-cycle gas turbines convert a portion of input energy from the fuel

410

Industrial Gas Turbines | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Industrial Gas Turbines Industrial Gas Turbines Industrial Gas Turbines November 1, 2013 - 11:40am Addthis A gas turbine is a heat engine that uses high-temperature, high-pressure gas as the working fluid. Part of the heat supplied by the gas is converted directly into mechanical work. High-temperature, high-pressure gas rushes out of the combustor and pushes against the turbine blades, causing them to rotate. In most cases, hot gas is produced by burning a fuel in air. This is why gas turbines are often referred to as "combustion" turbines. Because gas turbines are compact, lightweight, quick-starting, and simple to operate, they are used widely in industry, universities and colleges, hospitals, and commercial buildings. Simple-cycle gas turbines convert a portion of input energy from the fuel

411

Integrated low emissions cleanup system for direct coal fueled turbines (moving bed, fluid bed contactor/ceramic filter). Twenty-third quarterly status report, April--June 1993  

SciTech Connect

The United States Department of Energy, Morgantown Energy Research Center (DOE/METC), is sponsoring the development of direct coal-fired turbine power plants as part of their Heat Engines program. A major technical challenge remaining for the development of the direct coal-fired turbine is high-temperature combustion gas cleaning to meet environmental standards for sulfur oxides and particulate emissions, as well as to provide acceptable turbine life. The Westinghouse Electric Corporation, Science & Technology Center, is evaluating two Integrated Low Emissions Cleanup (ILEC) concepts that have been configured to meet this technical challenge: A baseline ceramic barrier filter ILEC concept, and a fluidized bed ILEC concept. These ILEC concepts simultaneously control sulfur, particulate, and alkali contaminants in the high-pressure combustion gases at turbine inlet temperatures up to 2300{degrees}F. This document reports the status of a program in the nineteenth quarter to develop this ILEC technology for direct coal-fired turbine power plants.

Newby, R.A.; Alvin, M.A.; Bachovchin, D.M.; Yang, W.C.; Smeltzer, E.E.; Lippert, T.E.

1993-07-19T23:59:59.000Z

412

Integrated Low Emissions Cleanup system for direct coal fueled turbines (moving bed, fluid contactor/ceramic filter). Twenty-second quarterly status report, January--March 1993  

SciTech Connect

The United States Department of Energy, Morgantown Energy Research Center (DOE/METC), is sponsoring the development of direct coal-fired turbine power plants as part of their Heat Engines program. A major technical challenge remaining for the development of the direct coal-fired turbine is high-temperature combustion gas cleaning to meet environmental standards for sulfur oxides and particulate emissions, as well as to provide acceptable turbine life. The Westinghouse Electric Corporation, Science & Technology Center, is evaluating two Integrated Low Emissions Cleanup (ILEC) concepts that have been configured to meet this technical challenge: A baseline ceramic barrier filter ILEC concept, and a fluidized bed ILEC concept. These ILEC concepts simultaneously control sulfur, particulate, and alkali contaminants in the high-pressure combustion gases at turbine inlet temperatures up to 2300{degrees}F. This document reports the status of a program in the nineteenth quarter to develop this ILEC technology for direct coal-fired turbine power plants.

Newby, R.A.; Alvin, M.A.; Bachovchin, D.M.; Yang, W.C.; Smeltzer, E.E.; Lippert, T.E.

1993-10-01T23:59:59.000Z

413

Integrated low emissions cleanup system for direct coal fueled turbines (moving bed, fluid bed contactor/ceramic filter). Twentieth quarterly status report, July--September 1992  

SciTech Connect

The United States Department of Energy, Morgantown Energy Research Center (DOE/METC), is sponsoring the development of direct coal-fired turbine power plants as part of their Heat Engines program. A major technical challenge remaining for the development of the direct coal-fired turbine is high-temperature combustion gas cleaning to meet environmental standards for sulfur oxides and particulate emissions, as well as to provide acceptable turbine life. The Westinghouse Electric Corporation, Science & Technology Center, is evaluating two Integrated Low Emissions Cleanup (ILEC) concepts that have been configured to meat this technical challenge: a baseline ceramic barrier filter ILEC concept, and a fluidized bed ILEC concept. These ILEC concepts simultaneously control sulfur, particulate, and alkali contaminants in the high-pressure combustion gases at turbine inlet temperatures up to 2300{degree}F. This document reports the status of a program in the nineteenth quarter to develop this ILEC technology for direct coal-fired turbine power plants.

Newby, R.A.; Alvin, M.A.; Bachovchin, D.M.; Yang, W.C.; Smeltzer, E.E.; Lippert, T.E.

1992-10-20T23:59:59.000Z

414

Integrated Low Emissions Cleanup system for direct coal fueled turbines, (moving bed, fluid bed contactor/ceramic filter). Twenty-fourth quarterly status report, July--September 1993  

SciTech Connect

The United States Department of Energy, Morgantown Energy Research Center (DOE/METC), is sponsoring the development of direct coal-fired turbine power plants as part of their Heat Engines program. A major technical challenge remaining for the development of the direct coal-fired turbine is high-temperature combustion gas cleaning to meet environmental standards for sulfur oxides and particulate emissions, as well as to provide acceptable turbine life. The Westinghouse Electric Corporation, Science & Technology Center, is evaluating two Integrated Low Emissions Cleanup (ILEC) concepts that have been configured to meet this technical challenge: a baseline ceramic barrier filter ILEC concept, and a fluidized bed ILEC concept. These ILEC concepts simultaneously control sulfur, particulate, and alkali contaminants in the high-pressure combustion gases at turbine inlet temperatures up to 2300{degree}F. This document reports the status of a program in the nineteenth quarter to develop this ILEC technology for direct coal-fired turbine power plants.

Newby, R.A.; Alvin, M.A.; Bachovchin, D.M.; Yang, W.C.; Smeltzer, E.E.; Lippert, T.E.

1993-12-31T23:59:59.000Z

415

Demonstration plant engineering and design. Phase I. The pipeline gas demonstration plant. Volume 9. Plant Section 800: product gas compression and drying  

SciTech Connect

Contract No. EF-77-C-01-2542 between Conoco Inc. and the US Department of Energy provides for the design, construction, and operation of a demonstration plant capable of processing bituminous caking coals into clean pipeline quality gas. The project is currently in the design phase scheduled to be completed in June 1981. One of the major efforts of Phase I is the completion of the process design and the project engineering design of the Demonstration Plant. This design effort has been completed. A report of the design effort is being issued in 24 volumes. This is Volume 9 which reports the design of Plant Section 800 - Product Gas Compression and Drying. Plant Section 800 compresses, cools, and drys the SNG product to conditions and specifications required for pipeline use. A conventional triethylene glycol (TEG) gas drying unit is employed to reduce the moisture content of the SNG to less than 7 pounds per million standard cubic feet. The product SNG has a minimum pressure of 800 psig and a maximum temperature of 100/sup 0/F. This section also includes the product gas analysis, metering, and totalizing instruments. It is designed to remove 3144 pounds of water from 19 million SCFC of SNG product. Volume 9 contains the following design information: process operation; design basis; heat and material balance; stream compositions; utility, chemical and catalyst summary; major equipment and machinery list; major equipment and machinery requisitions; instrument list; instrument requisitions; line lists; process flow diagram; engineering flow diagrams; and section plot plan.

Not Available

1981-01-01T23:59:59.000Z

416

Catalytic Combustor for Fuel-Flexible Turbine  

NLE Websites -- All DOE Office Websites (Extended Search)

indicative of different IGCC plant designs. Cold Vs hot gas cleaning, degree that the gas turbine is integrated with the IGCC plant and how the plant might be optimized for...

417

Plant Support Engineering: Nuclear Power Plant Equipment Qualification Reference Manual, Revision 1  

Science Conference Proceedings (OSTI)

This reference manual compiles information on technology, requirements, and experience pertaining to the qualification of safety-related equipment for use in nuclear power plants under normal operating conditions and under adverse environments such as steam line breaks and earthquakes. The manual covers both environmental and seismic qualification of all safety-related electrical and mechanical equipment, but places emphasis on environmental qualification of Class 1E electrical equipment subject to harsh...

2010-09-16T23:59:59.000Z

418

Plant Support Engineering: Guidance for the Replacement of Large Electric Motors at Nuclear Power Plants  

Science Conference Proceedings (OSTI)

The purpose of this report is to prepare a primary source of guidance for a project manager who is coordinating a team of plant personnel tasked with replacing a large electric motor. The report provides a generic process that describes interfaces and key steps necessary to ensure that the motor is evaluated and replaced in the most cost-effective and efficient means possible. The report also provides guidance regarding the typical composition of the project team and demonstrates how performance of their...

2010-03-15T23:59:59.000Z

419

Plant Support Engineering: Aging Management Program Guidance for Medium- Voltage Cable Systems for Nuclear Power Plants  

Science Conference Proceedings (OSTI)

Regulatory and management concern regarding the reliability of medium-voltage cable systems at nuclear plants has been increasing for 5–10 years. The staff of the U.S. Nuclear Regulatory Commission (NRC) are concerned that wetted (up to and including submergence) medium-voltage cable circuits may be degrading to the point at which multiple cable circuits may fail when called on to perform functions affecting safety. Utility managers are concerned that cables may fail, causing adverse safety consequences ...

2010-06-02T23:59:59.000Z

420

Temperature stratified turbine compressors  

SciTech Connect

A method and apparatus for improving the efficiency of a compressor of a gas turbine engine is disclosed. The inlet gas entering the compressor is stratified into two portions of different temperatures. The higher temperature gas is introduced adjacent the outer tipe of the compressor blades to reduce the relative Mach number of the flow at the area.

Earnest, E.R.; Passinos, B.

1979-01-09T23:59:59.000Z

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

A Review of Materials for Gas Turbines Firing Syngas Fuels  

SciTech Connect

Following the extensive development work carried out in the 1990's, gas turbine combined-cycle (GTCC) systems burning natural gas represent a reliable and efficient power generation technology widely used in many parts of the world. A critical factor was that, in order to operate at the high turbine entry temperatures required for high efficiency operation, aero-engine technology, i.e., single-crystal blades, thermal barrier coatings, and sophisticated cooling techniques had to be rapidly scaled up and introduced into these large gas turbines. The problems with reliability that resulted have been largely overcome, so that the high-efficiency GTCC power generation system is now a mature technology, capable of achieving high levels of availability. The high price of natural gas and concern about emission of greenhouse gases has focused attention on the desirability of replacing natural gas with gas derived from coal (syngas) in these gas turbine systems, since typical systems analyses indicate that IGCC plants have some potential to fulfil the requirement for a zero-emissions power generation system. In this review, the current status of materials for the critical hot gas path parts in large gas turbines is briefly considered in the context of the need to burn syngas. A critical factor is that the syngas is a low-Btu fuel, and the higher mass flow compared to natural gas will tend to increase the power output of the engine. However, modifications to the turbine and to the combustion system also will be necessary. It will be shown that many of the materials used in current engines will also be applicable to units burning syngas but, since the combustion environment will contain a greater level of impurities (especially sulfur, water vapor, and particulates), the durability of some components may be prejudiced. Consequently, some effort will be needed to develop improved coatings to resist attack by sulfur-containing compounds, and also erosion.

Gibbons, Thomas [ORNL; Wright, Ian G [ORNL

2009-05-01T23:59:59.000Z

422

A Review of Materials for Gas Turbines Firing Syngas Fuels  

SciTech Connect

Following the extensive development work carried out in the 1990's, gas turbine combined-cycle (GTCC) systems burning natural gas represent a reliable and efficient power generation technology widely used in many parts of the world. A critical factor was that, in order to operate at the high turbine entry temperatures required for high efficiency operation, aero-engine technology, i.e., single-crystal blades, thermal barrier coatings, and sophisticated cooling techniques had to be rapidly scaled up and introduced into these large gas turbines. The problems with reliability that resulted have been largely overcome, so that the high-efficiency GTCC power generation system is now a mature technology, capable of achieving high levels of availability. The high price of natural gas and concern about emission of greenhouse gases has focused attention on the desirability of replacing natural gas with gas derived from coal (syngas) in these gas turbine systems, since typical systems analyses indicate that IGCC plants have some potential to fulfil the requirement for a zero-emissions power generation system. In this review, the current status of materials for the critical hot gas path parts in large gas turbines is briefly considered in the context of the need to burn syngas. A critical factor is that the syngas is a low-Btu fuel, and the higher mass flow compared to natural gas will tend to increase the power output of the engine. However, modifications to the turbine and to the combustion system also will be necessary. It will be shown that many of the materials used in current engines will also be applicable to units burning syngas but, since the combustion environment will contain a greater level of impurities (especially sulfur, water vapor, and particulates), the durability of some components may be prejudiced. Consequently, some effort will be needed to develop improved coatings to resist attack by sulfur-containing compounds, and also erosion.

Gibbons, Thomas [ORNL; Wright, Ian G [ORNL

2009-05-01T23:59:59.000Z

423

Scale Model Turbine Missile Casing Impact Tests  

Science Conference Proceedings (OSTI)

This report describes three 1/5-scale-model turbine missile impact experiments performed to provide benchmark data for assessing turbine missiles effects in nuclear plant design. The development of an explosive launcher to accelerate the turbine missile models to the desired impact velocities is described. A comparison of the test results with those from full-scale experiments demonstrates scalability.

1982-12-01T23:59:59.000Z

424

Structural Health Monitoring of Wind Turbine Blades  

Science Conference Proceedings (OSTI)

Presentation Title, Structural Health Monitoring of Wind Turbine Blades. Author(s) ... is mandatory for the cost-effective operation of an offshore wind power plant.

425

Investigation of flow characteristics of gas turbines  

SciTech Connect

Measurements carried out in the process of assimilation of gas turbine (GT) plants of 16 different types in starting and working conditions to estimate the operational conditions and characteristics of the main elements (in particular of the turbines) have created a basis for generaliztion of flow characteristics of different turbines and for extending them to a wider range of operational conditions. The studies showed that: flow characteristics of the investigated turbines, independently of the number of stages and the degree of reaction, are described by the elliptic flowrate equation; throughput of similar turbines, i.e., of turbines formed of stages with high reaction, which have low design degrees of expansion, can be determined with satisfactory accuracy by the unique function of the degree of expansion; and in operating the gas turbine plants considerable changes in throughput of the turbines are possible.

Ol' khovskii, G.G.; Ol' khovskaya, N.I.

1978-01-01T23:59:59.000Z

426

A Systems Engineering Framework for Design, Construction and Operation of the Next Generation Nuclear Plant  

DOE Green Energy (OSTI)

Not since the International Space Station has a project of such wide participation been proposed for the United States. Ten countries, the European Union, universities, Department of Energy (DOE) laboratories, and industry will participate in the research and development, design, construction and/or operation of the fourth generation of nuclear power plants with a demonstration reactor to be built at a DOE site and operational by the middle of the next decade. This reactor will be like no other. The Next Generation Nuclear Plant (NGNP) will be passively safe, economical, highly efficient, modular, proliferation resistant, and sustainable. In addition to electrical generation, the NGNP will demonstrate efficient and cost effective generation of hydrogen to support the President’s Hydrogen Initiative. To effectively manage this multi-organizational and technologically complex project, systems engineering techniques and processes will be used extensively to ensure delivery of the final product. The technological and organizational challenges are complex. Research and development activities are required, material standards require development, hydrogen production, storage and infrastructure requirements are not well developed, and the Nuclear Regulatory Commission may further define risk-informed/performance-based approach to licensing. Detailed design and development will be challenged by the vast cultural and institutional differences across the participants. Systems engineering processes must bring the technological and organizational complexity together to ensure successful product delivery. This paper will define the framework for application of systems engineering to this $1.5B - $1.9B project.

Edward J. Gorski; Charles V. Park; Finis H. Southworth

2004-06-01T23:59:59.000Z

427

Requirements for low cost electricity and hydrogen fuel production from multi-unit intertial fusion energy plants with a shared driver and target factory  

E-Print Network (OSTI)

steam generators (SG),steam turbines(T), generators andawith the costs of modern steam turbine generator plants forSteam generators Remote maintenance equipment Turbine plant

Logan, B. Grant; Moir, Ralph; Hoffman, Myron A.

1994-01-01T23:59:59.000Z

428

Ceramic stationary gas turbine  

DOE Green Energy (OSTI)

The performance of current industrial gas turbines is limited by the temperature and strength capabilities of the metallic structural materials in the engine hot section. Because of their superior high-temperature strength and durability, ceramics can be used as structural materials for hot section components (blades, nozzles, combustor liners) in innovative designs at increased turbine firing temperatures. The benefits include the ability to increase the turbine inlet temperature (TIT) to about 1200{degrees}C ({approx}2200{degrees}F) or more with uncooled ceramics. It has been projected that fully optimized stationary gas turbines would have a {approx}20 percent gain in thermal efficiency and {approx}40 percent gain in output power in simple cycle compared to all metal-engines with air-cooled components. Annual fuel savings in cogeneration in the U.S. would be on the order of 0.2 Quad by 2010. Emissions reductions to under 10 ppmv NO{sub x} are also forecast. This paper describes the progress on a three-phase, 6-year program sponsored by the U.S. Department of Energy, Office of Industrial Technologies, to achieve significant performance improvements and emissions reductions in stationary gas turbines by replacing metallic hot section components with ceramic parts. Progress is being reported for the period September 1, 1994, through September 30, 1995.

Roode, M. van

1995-12-31T23:59:59.000Z

429

Application Of The Mold Sdm Process To The Fabrication Of Ceramic Parts For A Micro Gas Turbine Engine  

E-Print Network (OSTI)

... engine with silicon nitcon part is being developed. Inty1 project t he Mold Shape Deposit8fl Manufact23yP (Mold SDM) process is usedt fabricat highqualit yceramicpart wit complex shapes such ast herot/ group. The merit of micro gastsy1:W engines in general are described before focusing on processing and fabricat3C issues. Theobt23C: silicon nitcon part are charactCWWFfl concerningtonc mechanical and microstyPCWWFfl property12 The surface roughness, shrinkage during sinty1281 finaldensit yand achievablefeat /2 sizes have beendet/8fl8yPC Using Mold SDM a functPC81 rott group has been successfully fabricatul During spin tiny at roomt emperat/1 wit nit/1/ as driving gas 456,000 rpm rot28F:yP speed has been achieved.

Sangkyun Kang; Jürgen Stampfl; Alexander G. Cooper; Fritz B. Prinz

2000-01-01T23:59:59.000Z

430

Gas turbines for the future  

SciTech Connect

Utility gas turbine technology has been advancing fairly rapidly, one reason being that it shares in the benefits of the research and development for aviation gas turbines. In general, turbine progress is characterized by large, incremental advances in performance. At intervals of approx. 15 yr, new-generation turbines are introduced, refined, and eventually installed in relatively large numbers. A new generation of turbines is being readied for the market that will have power ratings into the 130- to 150-MW range (simple cycle), significantly higher than the 70 to 100 MW now in service. When the new turbines are installed in combined-cycle plants, the efficiency levels are expected to rise from the present value of approx. 42% higher heating value to approx. 46%.

Cohn, A.

1987-01-01T23:59:59.000Z

431

Energy Engineering Analysis Program (EEAP), Laundry Plant Study, Fort Leonard Wood, Missouri. Volume II. Final report  

SciTech Connect

The purpose of this energy engineering analysis program (EEAP), Laundry Plant Study at Ft. Leonard Wood, Missouri is to develop energy saving type projects for funding through the energy conservation investment program (ECIP) or other applicable funding source. The following outlines the tasks performed in this study. The complete scope of work is included in Appendix G of this report. (1) Review of previously completed energy engineering analysis program (EEAP) studies applicable to the laundry facilities. (2) Perform a detailed survey of the laundry facility and associated energy using equipment. (3) Perform a complete energy audit and analysis of the laundry facilities. (4) Identify energy conservation opportunities including low cost/no cost items. (5) Provide complete programming and implementation documentation for all recommended ECO`s. (6) Prepare a comprehensive report documenting the work accomplished and the results of the study.

1992-02-28T23:59:59.000Z

432

Heat transfer and film-cooling for the endwall of a first stage turbine vane  

E-Print Network (OSTI)

the turbine. Turbine inlet conditions in a gas turbine engine gen- erally consist of temperature and velocityHeat transfer and film-cooling for the endwall of a first stage turbine vane Karen A. Thole of the airfoils. One means of preventing degradation in the turbine is to film-cool components whereby coolant

Thole, Karen A.

433

Multiple piece turbine airfoil  

SciTech Connect

A turbine airfoil, such as a rotor blade or a stator vane, for a gas turbine engine, the airfoil formed as a shell and spar construction with a plurality of dog bone struts each mounted within openings formed within the shell and spar to allow for relative motion between the spar and shell in the airfoil chordwise direction while also forming a seal between adjacent cooling channels. The struts provide the seal as well as prevent bulging of the shell from the spar due to the cooling air pressure.

Kimmel, Keith D (Jupiter, FL); Wilson, Jr., Jack W. (Palm Beach Gardens, FL)

2010-11-02T23:59:59.000Z

434

Characterization of turbine rim seal flow and its sealing effectiveness  

E-Print Network (OSTI)

In a gas turbine engine, ingestion of hot gas from the flowpath into the gaps between the turbine rotor and stator can lead to elevated metal temperatures and a deterioration of component life. To prevent ingestion, bleed ...

Catalfamo, Peter T

2013-01-01T23:59:59.000Z

435

TurbSim: Reliability-based wind turbine simulator  

Science Conference Proceedings (OSTI)

Wind turbine farms are an effective generator of electricity in windy parts of the world, with prices progressing to levels competitive with other sources. Choosing the correct turbine for a given installation requires significant engineering and the ...

Joseph T. Foley; Timothy G. Gutowski

2008-05-01T23:59:59.000Z

436

Engineering  

NLE Websites -- All DOE Office Websites (Extended Search)

Engineering Engineering Engineering1354608000000EngineeringSome of these resources are LANL-only and will require Remote Access./No/Questions? 667-5809library@lanl.gov Engineering Some of these resources are LANL-only and will require Remote Access. Key Resources Reference Standards Data Sources Organizations Journals Key Resources Engineering Village Includes Engineering Index (Ei) and Compendex Knovel Handbooks, databases, and eBooks integrated with analytical and search tools IEEE Xplore Full text access to technical literature, standards, and conference proceedings in engineering and technology SPIE Digital Library Full-text papers from SPIE journals and proceedings published since 1998; subject coverage includes optics, photonics, electronic imaging, visual information processing, biomedical optics, lasers, and

437

U.S. Steam Turbine Valve Metallurgy Guide  

Science Conference Proceedings (OSTI)

This report provides nuclear and fossil plant personnel with current information on the metallurgical aspects of the steam turbine valve components used in U.S. power plants.

2009-03-30T23:59:59.000Z

438

Plant Support Engineering: Large Motor End of Expected Life and Planning Considerations  

Science Conference Proceedings (OSTI)

The purpose of this report is to alert nuclear power plant managers and component/system engineers of the point in life of large motors when long-term planning and/or contingency planning are desirable either to preclude the end-of-life failure or to make its impact manageable. This report defines the expected life of motors and actions that can be taken either to identify the approach of end-of-life failures or to reduce the cost of responding to an end-of-life failure.

2007-12-21T23:59:59.000Z

439

Plant Support Engineering: Large Vertical Pump End-of-Expected-Life Report  

Science Conference Proceedings (OSTI)

The purpose of this report is to provide nuclear power plant managers and component/system engineers with technical guidance regarding end-of-expected-life considerations for large vertical pumps. In particular, the report is intended to assist them in determining the point in the life of a pump when a contingency or refurbishment/replacement plan is desirable to prevent end-of-life failure or to make the impacts of a failure manageable. The report defines actions that can be taken to identify the approa...

2009-12-21T23:59:59.000Z

440

Engineering  

NLE Websites -- All DOE Office Websites (Extended Search)

Electrodynamics Bioscience, Biosecurity, Health Chemical Science Earth, Space Sciences Energy Engineering High Energy Density Plasmas, Fluids Information Science, Computing,...

Note: This page contains sample records for the topic "turbine engine plants" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Installation of a close loop water system for cooling the turbine bearing oil  

NLE Websites -- All DOE Office Websites (Extended Search)

KAPLAN TURBINE BLADE KAPLAN TURBINE BLADE CRACK WELD REPAIR BUILDING STRONG US Army Corps of Engineers Presented by Beau Biffle P. E. Chief, Hydropower Tulsa District Keystone Power Plant Sam Rayburn Power Plant BUILDING STRONG ® Keystone Power Plant Unit # 2 Technical Data Rated at 35 MW Average yearly generation - 127,000 MWH Unit placed online May 1968 Sam Rayburn Power Plant Unit #2 Technical Data Rated at 26 MW Average yearly generation - 30,000 MWH Unit placed online 1965 BUILDING STRONG ® General Information  The repair procedure developed by HDC for the McNary Power Plant was used for both of these repairs  Both repairs were performed by Corps employees  Both cracks were discovered during routine inspections BUILDING STRONG ® Keystone Repair

442

Mixer-Ejector Wind Turbine: Breakthrough High Efficiency Shrouded Wind Turbine  

SciTech Connect

Broad Funding Opportunity Announcement Project: FloDesign Wind Turbine’s innovative wind turbine, inspired by the design of jet engines, could deliver 300% more power than existing wind turbines of the same rotor diameter by extracting more energy over a larger area. FloDesign Wind Turbine’s unique shrouded design expands the wind capture area, and the mixing vortex downstream allows more energy to flow through the rotor without stalling the turbine. The unique rotor and shrouded design also provide significant opportunity for mass production and simplified assembly, enabling mid-scale turbines (approximately 100 kW) to produce power at a cost that is comparable to larger-scale conventional turbines.

None

2010-02-22T23:59:59.000Z

443

U.S. Department of Energy Wind Turbine Development Projects  

DOE Green Energy (OSTI)

This paper provides an overview of wind-turbine development activities in the Unites States and relates those activities to market conditions and projections. Several factors are responsible for a surge in wind energy development in the United States, including a federal production tax credit, ''green power'' marketing, and improving cost and reliability. More development is likely, as approximately 363 GW of new capacity will be needed by 2020 to meet growing demand and replace retiring units. The U.S. Department of Energy (DOE) is helping two companies develop next-generation turbines intended to generate electricity for $0.025/kWh or less. We expect to achieve this objective through a combination of improved engineering methods and configuration advancements. This should ensure that wind power will compete effectively against advanced combined-cycle plants having projected generating costs of $0.031/kWh in 2005. To address the market for small and intermediate-size wind turbines, DOE is assisting five companies in their attempts to develop new turbines having low capital cost and high reliability. Additional information regarding U.S. wind energy programs is available on the internet site www.nrel.gov/wind/. E-mail addresses for the turbine manufacturers are found in the Acknowledgements.

Migliore, P. G. (National Renewable Energy Laboratory); Calvert, S. D. (U.S. Department of Energy)

1999-04-26T23:59:59.000Z

444

Advanced Turbine Technology Applications Project (ATTAP). 1944 Annual report  

DOE Green Energy (OSTI)

This report summarizes work performed in development and demonstration of structural ceramics technology for automotive gas turbine engines. At the end of this period, the project name was changed to ``Ceramic Turbine Engine Demonstration Project``, effective Jan. 1995. Objectives are to provide early field experience demonstrating the reliability and durability of ceramic components in a modified, available gas turbine engine application, and to scale up and improve the manufacturing processes for ceramic turbine engine components and demonstrate the application of these processes in the production environment. The 1994 ATTAP activities emphasized demonstration and refinement of the ceramic turbine nozzles in the AlliedSignal/Garrett Model 331-200[CT] engine test bed in preparation for field testing; improvements in understanding the vibration characteristics of the ceramic turbine blades; improvements in critical ceramics technologies; and scaleup of the process used to manufacture ceramic turbine components.

NONE

1995-06-01T23:59:59.000Z

445

Prediction of Helicoper Engine Deterioration: A Data Mining Approach.  

E-Print Network (OSTI)

??Use of a gas turbine engine as the primary power source has been popular in light and heavy industries, aerospace engineering, marine engineering, etc. Gas… (more)

Chu, Wen-Hsiung

2006-01-01T23:59:59.000Z

446

Turbine Option  

NLE Websites -- All DOE Office Websites (Extended Search)

study was sponsored by the Turbine Survival Program in cooperation with the Department of Energy (DOE), Hydro Optimization Team (HOT), and the Federal Columbia River Power System...

447

Coatings for gas turbines; Specialized coatings boost, maintain turbine efficiency  

SciTech Connect

Airlines have been coating their jet engines for the past 30 years, thereby avoiding corrosion, erosion and wear. More recently, operators of mechanical-drive gas turbines have come to realize the value of coatings as a way to keep down costs. This paper describes specialized coatings technology which has evolved for gas turbines. Coatings have been designed for specific areas and even specific components within the turbine. Because operators must often request these coatings when buying new equipment or at overhaul, a basic understanding of the technology is presented.

1988-10-01T23:59:59.000Z

448

Title: A brief history of the Rolls-Royce University Technology Centre in Gas Turbine Noise at the Institute of Sound and Vibration Research  

E-Print Network (OSTI)

Report Title: A brief history of the Rolls-Royce University Technology Centre in Gas Turbine Noise and systems engineering, gas turbine transmission systems and gas turbine noise. The UTC in gas turbine noise to generation and propagation of noise from gas turbine engines. Aircraft noise is a critical technical issue

Sóbester, András

449

Creep performance of candidate SiC and Si{sub 3}N{sub 4} materials for land-based, gas turbine engine components  

DOE Green Energy (OSTI)

Tensile creep-rupture of a commercial gas pressure sintered Si3N4 and a sintered SiC is examined at 1038, 1150, and 1350 C. These 2 ceramics are candidates for nozzles and combustor tiles that are to be retrofitted in land-based gas turbine engines, and there is interest in their high temperature performance over service times {ge} 10,000 h (14 months). For this long lifetime, a static tensile stress of 300 MPa at 1038/1150 C and 125 Mpa at 1350 C cannot be exceeded for Si3N4; for SiC, the corresponding numbers are 300 Mpa at 1038 C, 250 MPa at 1150 C, and 180 MPa at 1350 C. Creep-stress exponents for Si3N4 are 33, 17, and 8 for 1038, 1150, 1350 C; fatigue- stress exponents are equivalent to creep exponents, suggesting that the fatigue mechanism causing fracture is related to the creep mechanism. Little success was obtained in producing failure in SiC after several decades of time through exposure to appropriate tensile stress; if failure did not occur on loading, then the SiC specimens most often did not creep-rupture. Creep-stress exponents for the SiC were determined to be 57, 27, and 11 for 1038, 1150, and 1350 C. For SiC, the fatigue-stress exponents did not correlate as well with creep-stress exponents. Failures that occurred in the SiC were a result of slow crack growth that initiated from the surface.

Wereszczak, A.A.; Kirkland, T.P.

1996-03-01T23:59:59.000Z

450

Alstom 3-MW Wind Turbine Installed at NWTC (Fact Sheet)  

DOE Green Energy (OSTI)

The 3-MW Alstom wind turbine was installed at NREL's NWTC in October 2010. Test data will be used to validate advanced turbine design and analysis tools. NREL signed a Cooperative Research and Development Agreement with Alstom in 2010 to conduct certification testing on the company's 3-MW ECO 100 wind turbine and to validate models of Alstom's unique drivetrain concept. The turbine was installed at NREL's National Wind Technology Center (NWTC) in October 2010 and engineers began certification testing in 2011. Tests to be conducted by NREL include a power quality test to finalize the International Electrotechnical Commission (IEC) requirements for type certification of the 60-Hz unit. The successful outcome of this test will enable Alstom to begin commercial production of ECO 100 in the United States. NREL also will obtain additional measurements of power performance, acoustic noise, and system frequency to complement the 50 Hz results previously completed in Europe. After NREL completes the certification testing on the ECO 100, it will conduct long-term testing to validate gearbox performance to gain a better understanding of the machine's unique ALSTOM PURE TORQUE{trademark} drivetrain concept. In conventional wind turbines, the rotor is supported by the shaft-bearing gearbox assembly. Rotor loads are partially transmitted to the gearbox and may reduce gearbox reliability. In the ALSTOM PURE TORQUE concept, the rotor is supported by a cast frame running through the hub, which transfers bending loads directly to the tower. Torque is transmitted to the shaft through an elastic coupling at the front of the hub. According to Alstom, this system will increase wind turbine reliability and reduce operation and maintenance costs by isolating the gearbox from rotor loads. Gearbox reliability has challenged the wind energy industry for more than two decades. Gearbox failures require expensive and time-consuming replacement, significantly increasing the cost of wind plant operation while reducing the plant's power output and revenue. To solve gearbox reliability issues, NREL launched a Gearbox Reliability Collaborative (GRC) in 2006 and brought together the world's leading turbine manufacturers, consultants, and experts from more than 30 companies and organizations. GRC's goal was to validate the typical design process-from wind turbine system loads to bearing ratings-through a comprehensive dynamometer and field-test program. Design analyses will form a basis for improving reliability of future designs and retrofit packages. Through its study of Alstom's Eco 100 gearbox, NREL can compare its GRC model gearbox with Alstom's and add the results to the GRC database, which is helping to advance more reliable wind turbine technology.

Not Available

2011-09-01T23:59:59.000Z

451

Gas turbine cooling system  

SciTech Connect

A gas turbine engine (10) having a closed-loop cooling circuit (39) for transferring heat from the hot turbine section (16) to the compressed air (24) produced by the compressor section (12). The closed-loop cooling system (39) includes a heat exchanger (40) disposed in the flow path of the compressed air (24) between the outlet of the compressor section (12) and the inlet of the combustor (14). A cooling fluid (50) may be driven by a pump (52) located outside of the engine casing (53) or a pump (54) mounted on the rotor shaft (17). The cooling circuit (39) may include an orifice (60) for causing the cooling fluid (50) to change from a liquid state to a gaseous state, thereby increasing the heat transfer capacity of the cooling circuit (39).

Bancalari, Eduardo E. (Orlando, FL)

2001-01-01T23:59:59.000Z

452

Rene' N4: A First Generation Single Crystal Turbine Airfoil Alloy with ...  

Science Conference Proceedings (OSTI)

GE Aircraft Engine's first generation single crystal (SX) turbine airfoil alloy, Rene N ..... Aircraft Engines, and Warren King who is now with GE Power. Generation ...

453

Gas Turbine Emissions  

E-Print Network (OSTI)

Historically, preliminary design information regarding gas turbine emissions has been unreliable, particularly for facilities using steam injection and other forms of Best Available Control Technology (BACT). This was probably attributed to the lack of regulatory interest in the 'real world' test results coupled with the difficulties of gathering analogous bench test data for systems employing gas turbines with Heat Recovery Steam Generators (HRSG) and steam injection. It appears that the agencies are getting a better grasp of emissions, but there are still problem areas, particularly CO and unburned hydrocarbon emissions. The lag in data has resulted in the imposition of a CO reactor as BACT for the gas turbine. With the renewed concern about the environment, air permits will have a high profile with offsets being the next fix beyond BACT. 'The manner in which technology developers and electric utilities will share emissions reductions in the coming era of pollution allowance trading is becoming prominent on the agendas of strategic planners at technology vendors and the electric power industry....' (1) Therefore, it becomes increasingly important that the proponents of gas turbine-based facilities establish more reliable data on their proposed emissions. This paper addresses the gas turbine emissions experiences of eight cogeneration plants utilizing: 1) steam injection for both NOx control and power augmentation, 2) CO reactors, 3) selective catalytic reduction units. It also looks at possible regulatory actions.

Frederick, J. D.

1990-06-01T23:59:59.000Z

454

Engineering  

NLE Websites -- All DOE Office Websites (Extended Search)

Engineering Engineering Lawrence Livermore National Laboratory Home Technologies Core Competencies Showcase Careers Partnerships About Advanced Manufacturing Developing high-performance materials, devices, components, and assemblies enabled by innovative design tools and novel manufacturing techniques Learn more Applied Electromagnetics Supporting the development of electromagnetic systems that are pervasive and paramount to the greater National Security community. Learn more Data Sciences Enabling better decisions through the development and application of state-of-the-art techniques in machine learning, statistics, and decision sciences Learn more Precision Engineering Embracing determinism to guide rigorous design, construction, and metrology of mechatronic systems, instruments, and manufactured components

455

Reducing Uncertainties in Life Limits of Titanium Alloys in Turbine ...  

Science Conference Proceedings (OSTI)

Presentation Title, Reducing Uncertainties in Life Limits of Titanium Alloys in Turbine Engine Rotors. Author(s), James M. Larsen, Sushant Jha, Christopher J.

456

The Development of ODS Superalloys for Industrial Gas Turbines  

Science Conference Proceedings (OSTI)

of advanced gas turbine engines, these alloys display long-term strength beyond the capabilities of conventional superalloys. The increasing use of ODS alloys,.

457

Development of Gatorized MERL 76 for Gas Turbine Disk Applications  

Science Conference Proceedings (OSTI)

FOR GAS TURBINE DISK APPLICATIONS. R. H. Caless and D. F. Paulonis. Materials. Engineering. Pratt & Whitney. 400 Main Street. East Hartford,. CT 06108.

458

Turbine Component Rapid Manufacturing Via Electron Beam Melting...  

NLE Websites -- All DOE Office Websites (Extended Search)

Electrochemical Machining- Barber-Nichols Background Development of new, more efficient gas turbine engines is achieved by a lengthy process of maximizing performance through...

459

The Development of Single Crystal Superalloy Turbine Blades  

Science Conference Proceedings (OSTI)

Airbus Industries A310 aircraft. Engine certification and initial production shipments are planned for July of 1980. Alloy 454 turbine blades have also been  ...

460

UTILITY ADVANCED TURBINE SYSTEMS(ATS) TECHNOLOGY READINESS TESTING  

SciTech Connect

The following paper provides an overview of GE's H System{trademark} technology, and specifically, the design, development, and test activities associated with the DOE Advanced Turbine Systems (ATS) program. There was intensive effort expended in bringing this revolutionary advanced technology program to commercial reality. In addition to describing the magnitude of performance improvement possible through use of H System{trademark} technology, this paper discusses the technological milestones during the development of the first 9H (50Hz) and 7H (60 Hz) gas turbines. To illustrate the methodical product development strategy used by GE, this paper discusses several technologies that were essential to the introduction of the H System{trademark}. Also included are analyses of the series of comprehensive tests of materials, components and subsystems that necessarily preceded full scale field testing of the H System{trademark}. This paper validates one of the basic premises with which GE started the H System{trademark} development program: exhaustive and elaborate testing programs minimized risk at every step of this process, and increase the probability of success when the H System{trademark} is introduced into commercial service. In 1995, GE, the world leader in gas turbine technology for over half a century, in conjunction with the DOE National Energy Technology Laboratory's ATS program, introduced its new generation of gas turbines. This H System{trademark} technology is the first gas turbine ever to achieve the milestone of 60% fuel efficiency. Because fuel represents the largest individual expense of running a power plant, an efficiency increase of even a single percentage point can substantially reduce operating costs over the life of a typical gas-fired, combined-cycle plant in the 400 to 500 megawatt range. The H System{trademark} is not simply a state-of-the-art gas turbine. It is an advanced, integrated, combined-cycle system in which every component is optimized for the highest level of performance. The unique feature of an H-technology combined-cycle system is the integrated heat transfer system, which combines both the steam plant reheat process and gas turbine bucket and nozzle cooling. This feature allows the power generator to operate at a higher firing temperature than current technology units, thereby resulting in dramatic improvements in fuel-efficiency. The end result is the generation of electricity at the lowest, most competitive price possible. Also, despite the higher firing temperature of the H System{trademark}, the combustion temperature is kept at levels that minimize emission production. GE has more than 3.6 million fired hours of experience in operating advanced technology gas turbines, more than three times the fired hours of competitors' units combined. The H System{trademark} design incorporates lessons learned from this experience with knowledge gleaned from operating GE aircraft engines. In addition, the 9H gas turbine is the first ever designed using ''Design for Six Sigma'' methodology, which maximizes reliability and availability throughout the entire design process. Both the 7H and 9H gas turbines will achieve the reliability levels of our F-class technology machines. GE has tested its H System{trademark} gas turbine more thoroughly than any previously introduced into commercial service. The H System{trademark} gas turbine has undergone extensive design validation and component testing. Full-speed, no-load testing of the 9H was achieved in May 1998 and pre-shipment testing was completed in November 1999. The 9H will also undergo approximately a half-year of extensive demonstration and characterization testing at the launch site. Testing of the 7H began in December 1999, and full speed, no-load testing was completed in February 2000. The 7H gas turbine will also be subjected to extensive demonstration and characterization testing at the launch site.

Kenneth A. Yackly

2001-06-01T23:59:59.000Z