Relevant bibliographies by topics / Gas turbine generator

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Gas turbine generator'

Author: Grafiati
Published: 7 June 2025
Last updated: 17 July 2025

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Journal articles on the topic "Gas turbine generator"

1

Wilson, Jay M., and Henry Baumgartner. "A New Turbine for Natural Gas Pipelines." Mechanical Engineering 121, no. 05 (1999): 72–74. http://dx.doi.org/10.1115/1.1999-may-7.

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The new Cooper-Bessemer power turbine is a high-efficiency, center frame-mounted, three-stage unit that can be driven by either the existing RB211-24 gas generator or the new improved version. The upgraded gas generator combined with the new power turbine offers an increase in nominal output from 28.4 MW (38,000 hp) to 31.8 MW (42,600 hp). The new coupled turbine, now being tested, is called the Coberra 6761. Besides improving core engine performance, the program's objectives included improved fuel efficiency and reliability, and easier site serviceability; extension of the modular concept from the gas generator into the power turbine with improvements in sealing, materials, and temperature capability as well as interchangeability of both upgraded turbines with existing hardware. The Rolls-Royce industrial RB211 turbine, derived from an aircraft engine, is the basis for the gas generator end of Cooper Energy Services' Coberra coupled turbines. The power turbine design capacity has a significant effect on the power at a given speed. The flow capacity was optimized to achieve the best thermal efficiency and lower IP speeds to optimize IP compressor efficiency and permit future throttle push.
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Langston, Lee S. "Cogeneration: Gas Turbine Multitasking." Mechanical Engineering 134, no. 08 (2012): 50. http://dx.doi.org/10.1115/1.2012-aug-4.

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This article describes the functioning of the gas turbine cogeneration power plant at the University of Connecticut (UConn) in Storrs. This 25-MW power plant serves the 18,000 students’ campus. It has been in operation since 2006 and is expected to save the University $180M in energy costs over its 40-year design life. The heart of the UConn cogeneration plant consists of three 7-MW Solar Taurus gas turbines burning natural gas, with fuel oil as a backup. These drive water-cooled generators to produce up to 20–24 MW of electrical power distributed throughout the campus. Gas turbine exhaust heat is used to generate up to 200,000 pounds per hour of steam in heat recovery steam generators (HRSGs). The HRSGs provide high-pressure steam to power a 4.6-MW steam turbine generator set for more electrical power and low-pressure steam for campus heating. The waste heat from the steam turbine contained in low-pressure turbine exhaust steam is combined with the HRSG low-pressure steam output for campus heating.
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Udalov, Sergey N., Andrey A. Achitaev, Alexander G. Pristup, Boris M. Bochenkov, Yuri Pankratz, and Richard D. Tarbill. "Increasing the regulating ability of a wind turbine in a local power system using magnetic continuous variable transmission." Wind Engineering 42, no. 5 (2018): 411–35. http://dx.doi.org/10.1177/0309524x18780404.

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The paper is devoted to investigations of dynamic processes in a local power system consisting of wind turbines with a magnetic continuously variable transmission. Due to low inertia of wind turbine generator rotors, there is a problem of ensuring dynamic stability at sharp load changes or at short circuits in an autonomous power system. To increase dynamic stability of the system, two algorithms for controlling a magnetic continuously variable transmission are presented. The first algorithm stabilizes a rotation speed of the high-speed rotor of a magnetic continuously variable transmission from the generator side in a local power system consisting of wind turbines with uniform synchronous generators with permanent magnets having equal moments of inertia. Undoubtedly, local power systems having only the wind turbines with equal mechanical inertia time constants are not widely used due to stochastic nature of wind energy. Therefore, wind power systems are combined with a diesel generator or a gas-turbine unit. Investigations show that the use of the only speed stabilization algorithm is not enough for such power systems, because there is a possibility for occurrence of asynchronous operation under specific power changes due to the difference in moments of inertia of generator rotors. Thus, the second algorithm uses the phase shift compensation in accordance with a primary generator in an autonomous power system consisting of non-uniform generators having different mechanical inertia time constants. As a primary generator, a diesel generator or a gas-turbine unit having a primary speed controller may be used. It should be noted that algorithms of stabilization for speed and phase angle are extended by an inertial circuit of aerodynamic compensation for torque of rotation from the wind turbine side to reduce loading on an energy storage unit of the magnetic continuously variable transmission at disturbances from the generator side and the turbine side.
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Tkachenko, A. Yu, V. N. Rybakov, E. P. Filinov, and Ya A. Ostapyuk. "Thermodynamic Design of a Small-Scale Gas Turbine Engine Family." Herald of the Bauman Moscow State Technical University. Series Mechanical Engineering, no. 3 (126) (June 2019): 41–53. http://dx.doi.org/10.18698/0236-3941-2019-3-41-53.

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The paper presents a procedure for selecting work cycle parameters and describes thermodynamic design of a small-scale gas turbine engine family consisting of a small-scale gas turbine engine and a gas turbine plant comprising a free turbine driving a power generator, on the basis of a standardized gas generator. In order to select reasonable work cycle parameter values for the small-scale gas turbine engine and gas turbine plant we used a non-linear optimisation technique accounting for functional and parametric constraints as implemented in the ASTRA CAE software. Calculation results allowed us to plot the locally optimal work cycle parameter regions for the small-scale gas turbine engine and gas turbine plant according to the efficiency criteria for both engines, which are specific fuel consumption and net energy conversion efficiency. Taking the constraints into account, we selected reasonable values for the standardized gas generator parameters within the compromise region obtained, specifically the turbine inlet temperature and compressor pressure ratio. Our quantitative results show how the efficiency indices decline in the engine family featuring a standardized gas generator as compared to engines equipped with individually tailored gas generators. Designing a standardized gas generator in advance makes it possible to decrease engine development costs and time, ensure a higher reliability and a lower cost of production.
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Sanaye, Sepehr, and Salahadin Hosseini. "Off-design performance improvement of twin-shaft gas turbine by variable geometry turbine and compressor besides fuel control." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 234, no. 7 (2019): 957–80. http://dx.doi.org/10.1177/0957650919887888.

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A novel procedure for finding the optimum values of design parameters of industrial twin-shaft gas turbines at various ambient temperatures is presented here. This paper focuses on being off design due to various ambient temperatures. The gas turbine modeling is performed by applying compressor and turbine characteristic maps and using thermodynamic matching method. The gas turbine power output is selected as an objective function in optimization procedure with genetic algorithm. Design parameters are compressor inlet guide vane angle, turbine exit temperature, and power turbine inlet nozzle guide vane angle. The novel constrains in optimization are compressor surge margin and turbine blade life cycle. A trained neural network is used for life cycle estimation of high pressure (gas generator) turbine blades. Results for optimum values for nozzle guide vane/inlet guide vane (23°/27°–27°/6°) in ambient temperature range of 25–45 ℃ provided higher net power output (3–4.3%) and more secured compressor surge margin in comparison with that for gas turbines control by turbine exit temperature. Gas turbines thermal efficiency also increased from 0.09 to 0.34% (while the gas generator turbine first rotor blade creep life cycle was kept almost constant about 40,000 h). Meanwhile, the averaged values for turbine exit temperature/turbine inlet temperature changed from 831.2/1475 to 823/1471°K, respectively, which shows about 1% decrease in turbine exit temperature and 0.3% decrease in turbine inlet temperature.
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Vidian, Fajri, Putra Anugrah Peranginangin, and Muhamad Yulianto. "Cycle-Tempo Simulation of Ultra-Micro Gas Turbine Fueled by Producer Gas Resulting from Leaf Waste Gasification." Journal of Mechanical Engineering 24, no. 3 (2021): 14–20. http://dx.doi.org/10.15407/pmach2021.03.014.

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Leaf waste has the potential to be converted into energy because of its high availability both in the world and Indonesia. Gasification is a conversion technology that can be used to convert leaves into producer gas. This gas can be used for various applications, one of which is using it as fuel for gas turbines, including ultra-micro gas ones, which are among the most popular micro generators of electric power at the time. To minimize the risk of failure in the experiment and cost, simulation is used. To simulate the performance of gas turbines, the thermodynamic analysis tool called Cycle-Tempo is used. In this study, Cycle-Tempo was used for the zero-dimensional thermodynamic simulation of an ultra-micro gas turbine operated using producer gas as fuel. Our research contributions are the simulation of an ultra-micro gas turbine at a lower power output of about 1 kWe and the use of producer gas from leaf waste gasification as fuel in a gas turbine. The aim of the simulation is to determine the influence of air-fuel ratio on compressor power, turbine power, generator power, thermal efficiency, turbine inlet temperature and turbine outlet temperature. The simulation was carried out on condition that the fuel flow rate of 0.005 kg/s is constant, the maximum air flow rate is 0.02705 kg/s, and the air-fuel ratio is in the range of 1.55 to 5.41. The leaf waste gasification was simulated before, by using an equilibrium constant to get the composition of producer gas. The producer gas that was used as fuel had the following molar fractions: about 22.62% of CO, 18.98% of H2, 3.28% of CH4, 10.67% of CO2 and 44.4% of N2. The simulation results show that an increase in air-fuel ratio resulted in turbine power increase from 1.23 kW to 1.94 kW. The generator power, thermal efficiency, turbine inlet temperature and turbine outlet temperature decreased respectively from 0.89 kWe to 0.77 kWe; 3.17% to 2.76%; 782 °C to 379 °C and 705°C to 304 °C. The maximums of the generator power and thermal efficiency of 0.89 kWe and 3.17%, respectively, were obtained at the 1.55 air-fuel ratio. The generator power and thermal efficiency are 0.8 kWe and 2.88%, respectively, with the 4.64 air-fuel ratio or 200% excess air. The result of the simulation matches that of the experiment described in the literature.
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KANEKO, Shigehiko, and Yudai YAMASAKI. "4A11 Control of micro gas turbine generator fueled by biomass gas." Proceedings of the Symposium on the Motion and Vibration Control 2010 (2010): _4A11–1_—_4A11–13_. http://dx.doi.org/10.1299/jsmemovic.2010._4a11-1_.

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Handoko, Susilo, Hendra Hendra, Hafid Suharyadi, and Totok Widiyanto. "Optimization Of Gas Turbine Performance 2.1 Using the Overhaul Combustion Inspection Method." Jurnal Polimesin 22, no. 1 (2024): 103. http://dx.doi.org/10.30811/jpl.v22i1.4221.

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Gas turbines are one type of internal combustion drive, the initial mover utilizes gas combustion as a fluid to rotate the turbine with internal combustion. Gas turbines at private companies producing electricity use the initial movers, namely gas turbines and steam turbines. Therefore, it is also called the "Steam Gas Power Plant/PLTGU.”Private company especially in Block 2, uses two gas turbine units with Mitsubishi GT 2.1 specifications which are used as the initial drive of the generator. Types of overhauls in gas turbines are divided into three, including turbine inspection, combustor inspection, and major inspection. In maintaining the reliability of the GT 2.1 Gas Turbine, an overhaul combustion inspection was carried out in the combustion chamber because there was an increase in heat rate of 17,9% which caused a decrease in thermal efficiency and net turbine power of the GT 2.1 Gas Turbine by 17% and 2,1%. So that steps are taken to optimize the GT 2.1 Gas Turbine with the combustion inspection method by repairing and cleaning the combustion bucket nozzle. Increased thermal efficiency by 27,8% or 27,13% to 36,01% from data before overhaul. This was also followed by an increase in compressor power and turbine power so that the net turbine power increased by 38% or 141339,35 hp to 195246,54 hp.
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Kurz, Rainer. "Natural Gas." Mechanical Engineering 133, no. 04 (2011): 52. http://dx.doi.org/10.1115/1.2011-apr-7.

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This article discusses the importance of gas turbines, centrifugal compressors and pumps, and other turbomachines in processes that bring natural gas to the end users. To be useful, the natural gas coming from a large number of small wells has to be gathered. This process requires compression of the gas in several stages, before it is processed in a gas plant, where contaminants and heavier hydrocarbons are stripped from the gas. From the gas plant, the gas is recompressed and fed into a pipeline. In all these compression processes, centrifugal gas compressors driven by industrial gas turbines or electric motors play an important role. Turbomachines are used in a variety of applications for the production of oil and associated gas. For example, gas turbine generator sets often provide electrical power for offshore platforms or remote oil and gas fields. Offshore platforms have a large electrical demand, often requiring multiple large gas turbine generator sets. Similarly, centrifugal gas compressors, driven by gas turbines or by electric motors are the benchmark products to pump gas through pipelines, anywhere in the world.
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Eflita Yohana, Tony Suryo Utomo, Muhammad Ichwan Faried, Mohammad Farkhan Hekmatyar Dwinanda, and Mohamad Endy Yulianto. "Exergy and Energy Analysis of Gas Turbine Generator X Combined Cycle Power Plant Using Cycle-Tempo Software." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 104, no. 1 (2023): 37–46. http://dx.doi.org/10.37934/arfmts.104.1.3746.

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Increasing electricity production must continue to be pursued to meet the increasing electricity needs of the community. One of the efforts that engineers can make is to improve the performance of the main suppliers of electricity needs. It is impossible to separate the role of the system's components from the performance of the gas turbine generator. This journal discusses exergy and energy analysis in the gas turbine generator of X combined cycle power plant through simulation with Cycle-Tempo software. The simulation results show that the highest system energy efficiency is owned by the gas turbine generator unit 2.3 of 35.541%, with a system exergy efficiency of 34.069%. The lowest system energy efficiency is owned by the gas turbine generator unit 2.1 of 31.669%, with a system exergy efficiency of 30.355%. The gas turbine generator component with the lowest exergy efficiency occurs in the combustion chamber of the gas turbine generator unit 2.2 of 76.81%, with exergy destruction of 92.581 MW. Meanwhile, the gas turbine generator component with the highest exergy efficiency occurred in the turbine of the gas turbine generator unit 2.3 of 96.81%, with exergy destruction of 9.762 MW. The simulation results that have been carried out show that the performance of the components in the gas turbine generator is still in good performance, with the lowest exergy efficiency above 75%.
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Dissertations / Theses on the topic "Gas turbine generator"

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Pullen, Keith R. "The design and development of a small gas turbine and high speed generator." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/11414.

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Ebaid, Munzer Shehadeh Yousef. "Design and construction of a small gas turbine to drive a permanent magnet high speed generator." Thesis, University of Hertfordshire, 2002. http://hdl.handle.net/2299/14046.

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Radial gas turbines engines have established prominence in the field of small turbomachinery because of their simplicity, relatively high performance and installation features. Thus they have been used in a variety of applications such as generator sets, small auxiliary power units (APu), air conditioning of aircraft cabins and hybrid electric vehicles turbines. The current research describes the design, manufacturing, construction and testing a radial type small gas turbine. The aim was to design and build the engine to drive directly a high-speed permanent magnet alternator running at 60000 rpmand developing a maximum of 60 W. This direct coupling arrangement produces a portable, light, compact, reliable and environment friendly power generator. These features make the generator set very attractive to use in many applications including emergency power generation for hospitals, in areas of natural disasters such as floods and earthquakes, in remote areas that cannot be served from the national grid, oil rigs, and in confined places of limited spaces. It is important to recognize that the design of the main components, that is, the inward flow radial UFR turbines, the centrifugal compressor and the combustion chamber involve consideration of aero-dynamics, thermodynamics, fluid mechanics, stress analysis, vibration analysis, selection of bearings, selection of suitable materials and the requirements for manufacturing. These considerations are all inter-linked and a procedure has been followed to reach an optimum design. This research was divided into three phases: phase I dealt with the complete design of the inward radial turbine, the centrifugal compressor, the power transmission shaft, the selection of combustion chamber and the bearing housing including the selection of bearings. Phase 2 dealt with mechanical consideration of the rotating components that is stress, thermal and vibration analyses of the turbine rotor, the impeller and the rotating shaft, respectively. Also it dealt with the selection of a suitable fuel and oil lubrication systems and a suitable starting system. Phase 3 dealt with the manufacturing of the gas turbine components, balancing the rotating components, assembling the engine and finally commissioning and then testing the engine. The current work in this thesis has put the light on a new design methodology on determining the optimum principal dimensions of the rotor and the impeller. This method, also, has defined the optimum number of blades and the axial length of the rotor and the impeller. Mathematical models linking the performance parameters and the design variables for the turbine and the compressor have been developed to assist in carrying out parametric studies to study the influence of the design parameters on the performance and on each other. Also, a new graphical matching procedure has been developed for the gas turbine components. This technique can serve as a valuable tool to determine the operating range and the engine running line. Furthermore, it would decide whether the gas turbine engine operates in a region of satisfactory compressor and turbine efficiencies.
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Feehally, Thomas. "Electro-mechanical interaction in gas turbine-generator systems for more-electric aircraft." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/electromechanical-interaction-in-gas-turbinegenerator-systems-for-moreelectric-aircraft(64606031-8744-4925-a8e1-3bf4ea108696).html.

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Modern 'more-electric' aircraft demand increased levels of electrical power as non-propulsive power systems are replaced with electrical equivalents. This electrical power is provided by electrical generators, driven via a mechanical transmission system, from a rotating spool in the gas turbine core. A wide range of electrical loads exist throughout the aircraft, which may be pulsating and high powered, and this electrical power demand is transferred though the generators to produce a torque load on the drivetrain. The mechanical components of the drivetrain are designed for minimum mass and so are susceptible to fatigue, therefore the electrical loading existing on modern airframes may induce fatigue in key mechanical components and excite system resonances in both mechanical and electrical domains. This electro-mechanical interaction could lead to a reduced lifespan for mechanical components and electrical network instability.This project investigates electro-mechanical interaction in the electrical power offtake from large diameter aero gas turbines. High fidelity modelling of the drivetrain, and generator, allow the prediction of system resonances for a generic gas turbine-generator system. A Doubly-Fed Induction Generator (DFIG) is considered and modelled. DFIGs offer opportunities due to their fast dynamics and their ability to decouple electrical and mechanical frequencies (e.g. enabling a constant frequency electrical system with a variable speed mechanical drive). A test platform is produced which is representative of a large diameter gas turbine and reproduces the electro-mechanical system behaviour. The test platform is scaled with respect to speed and power but maintains realistic sizing between component dimensions which include: a gas turbine mechanical spool emulation, transmission driveshafts and gearbox, and accessory loads such as a generator. This test platform is used to validate theoretical understanding and suggest alternative mechanical configurations, and generator control schemes, for the mitigation of electro-mechanical interaction.The novel use of a DFIG and an understanding of electro-mechanical interaction allow future aircraft designs to benefit from the increased electrification of systems by ensuring that sufficient electrical power can be provided by a robust gas turbine-generator system.
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Kysel, Stanislav. "Energetický paroplynový zdroj na bázi spalování hutnických plynů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229801.

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The main goal of my thesis is to carry out thermic calculations for adjusted conditions of electric and heat energy consumption. The power of the generator is 330 MW. In the proposal, you can find combustion trubines type GE 9171E. Steam-gas power plant is designed to combust metallurgical gases. Effort of the thesis focuses also on giving a new informations about trends in combinated production of electric and heat energy.
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Kysel, Stanislav. "Energetický paroplynový zdroj na bázi spalování hutnických plynů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230245.

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The main goal of my thesis is to carry out thermic calculations for adjusted conditions of electric and heat energy consumption. The power of the generator is 330 MW. In the proposal, you can find combustion trubines type GE 9171E. Steam-gas power plant is designed to combust metallurgical gases. Effort of the thesis focuses also on giving a new informations about trends in combinated production of electric and heat energy.
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Monroe, Mark A. (Mark Alan). "A market and engineering study of a 3-kilowatt class gas turbine generator." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/42200.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2003.<br>Includes bibliographical references (p. 147-149).<br>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 requirements for small generators in various U.S. applications, assess the unit's current suitability for these applications, and recommend ways to modify performance or marketing practices to make it more competitive. Engineering study goals included developing an accurate cycle model and assessing the potential for performance improvement. The market study found that the current high selling price precludes competitiveness in most segments of the U.S. civil market. One potential exception may be the marine market, where price sensitivity is less of an issue and a premium is paid for quiet operation, a distinct advantage of the Dynajet. A gas turbine generator solution has more potential in the military market, where the difference from incumbent prices is smaller than in the civil market. The Dynajet is also an appealing military solution because of its high reliability and quiet operation. The market study concluded that increasing power output and efficiency while reducing purchase price would be the most effective approach to improved competitiveness. Alternatively, the current strengths could be leveraged by adapting it for use with an absorption cooler and by emphasizing its superior emission characteristics to consumers and regulators. The engineering study discovered that cycle performance is degraded by secondary nonidealities including flow leakage, heat leakage, and thermal flow distortion. Although these nonidealities are present to some degree in all gas turbines, their impacts are larger in small-scale engines.<br>(cont.) The net effect of all nonidealities is a 61 percent reduction in power and 12 point decrease in overall efficiency. Analysis concluded that the best way to enhance Dynajet competitiveness is to reduce or remove those nonidealities that are straightforward to fix while increasing power output to either 3 or 5 kW. Output of 5 kW is most promising in terms of cost and weight competitiveness; however, such an improvement may require turbomachinery redesign. A short-term increase of power output to 3 kW appears practical from an engineering standpoint.<br>by Mark A. Monroe.<br>S.M.
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Steyn, Matthys Miechielse. "The conceptual design and development of a micro gas turbine generator / Matthys M. Steyn." Thesis, North-West University, 2006. http://hdl.handle.net/10394/1028.

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All over the world interest in small scale stand alone power generators is growing. This interest is motivated by lower electrical costs and/or the capability to be unaffected by power failures and blackouts that could damage electronic networks and machinery. The potential of small scale power supplying units is being recognized, as generating capacity is quickly becoming too small. Furthermore, the need for off-grid power supply to remote areas, additional power supply to reduce grid power usage during peak demand periods when power is expensive, as well as the advantages of distributed generation, also increases the demand for this type of power. Technology that holds great potential for small scale power generation is the use of gas turbine machinery to drive these generators. Gas turbine machinery is mainly based on the Brayton cycle and variants hereof. These variants are compared and evaluated under different parameter changes (Chapters 2 and 3) while different configurations of gas turbine systems were evaluated as well. The selection of turbine machinery is done with the help of the software package (Flownex) where the same potential turbine machinery is compared in Chapter 4. A gas turbine system mostly consists out of the following components: Compressor, Turbine, Heater 1 Combustion chamber and Heat exchangers. The compressor and turbine configuration are discussed as part of the turbine machinery selection process in Chapter 4. The following Chapters (5, 6 and 7) are dedicated to design of the rest of the components. All of these components are simulated as a system both under steady state conditions as well as under transient conditions in Chapter 7. Different operating conditions like start-up and load-following are simulated as well in this part if the study. The simulations are done for a small scale (60 - 80kW) micro gas turbine generator It is recommended that now that the concept of a micro gas turbine generator was proven, that firstly prototypes of the components like the combustor chamber and heat exchangers are built, followed by a complete system, based on the outputs of this study.<br>Thesis (M.Ing. (Mechanical Engineering))--North-West University, Potchefstroom Campus, 2006.
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Kadáková, Nina. "Návrh paroplynového zdroje elektřiny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417426.

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A combined cycle is one of the thermal cycles used in thermal power plants. It consists of a combination of a gas and a steam turbine, where the waste heat from the gas turbine is used for steam generation in the heat recovery steam generator. The aim of the diploma thesis was the conceptual design of a combined cycle electricity source and the balance calculation of the cycle. The calculation is based on the thermodynamic properties of the substances and the basic knowledge of the Brayton and Rankin-Clausius cycle. The result is the amount and parameters of air, flue gases, and steam/water in individual places and the technological scheme of the source, in which these parameters are listed.
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Nagle, Steven F. (Steven Francis) 1972. "Analysis, design, and fabrication of an electric induction micromotor for a micro gas-turbine generator." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/8761.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2001.<br>Includes bibliographical references (p. 223-227).<br>This thesis presents the analysis, design, fabrication, and testing of the first axial-gap electric induction micromotor, and the first controlled measurement of electric micromotor torque using integrated mechanical springs. Electric induction micromotors offer several advantages over electric variable capacitance micromotors and magnetic micromotors: neither rotor position nor speed need be known to achieve good performance; perfect sinusoids can be used for actuation to eliminate switching losses without loss of motor performance. In addition, the motor is fabricated from IC-compatible materials. The tethered motor is a metrology device. To eliminate bearings and all friction forces, the rotor is attached to fixed supports by single-crystal silicon tethers that are calibrated after fabrication. The tethers are relatively compliant in the azimuthal plane, but stiff axially. This enables accurate measurement of in-plane displacements, free from losses, while preventing out-of-plane displacements that would alter the gap. Ideally, the micromotor is fabricated from two fusion-bonded wafers in a process of 189 steps using 13 masks. Process complication comes from several sources. First, the stator structure uses a damascene insulator process to provide very thick passivation. Second, the rotor charge relaxation time constant is adjusted using a moderately Boron-doped polysilicon conductor. Third, tethers are defined by a through-wafer etch to be 385 jim tall and only 8 jim wide. Finally, the stator and rotor wafer are to be fusion bonded at the wafer level, although this was not carried out for the tested motor; it was assembled by hand with epoxy. Torque is measured as high as 0.220 [mu]N-m with 90 V square-wave actuation. Torque is shown to be consistent with models and the torque curves are shown to shift with rotor conductivity as expected with reference to a magnetic induction machine. The measurements are consistent with a gap of 12 [mu]m, which is shown to be a result of the hand-assembly process. Bonding would yield a gap of 3 [mu]m, making torque of 3 [mu]N-m possible at the same voltage.<br>by Steven F. Nagle.<br>Ph.D.
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Vytla, Veera Venkata Sunil Kumar. "CFD Modeling of Heat Recovery Steam Generator and its Components Using Fluent." UKnowledge, 2005. http://uknowledge.uky.edu/gradschool_theses/336.

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Combined Cycle power plants have recently become a serious alternative for standard coal- and oil-fired power plants because of their high thermal efficiency, environmentally friendly operation, and short time to construct. The combined cycle plant is an integration of the gas turbine and the steam turbine, combining many of the advantages of both thermodynamic cycles using a single fuel. By recovering the heat energy in the gas turbine exhaust and using it to generate steam, the combined cycle leverages the conversion of the fuel energy at a very high efficiency. The heat recovery steam generator forms the backbone of combined cycle plants, providing the link between the gas turbine and the steam turbine. The design of HRSG has historically largely been completed using thermodynamic principles related to the steam path, without much regard to the gas-side of the system. An effort has been made using resources at both UK and Vogt Power International to use computational fluid dynamics (CFD) analysis of the gas-side flow path of the HRSG as an integral tool in the design process. This thesis focuses on how CFD analysis can be used to assess the impact of the gas-side flow on the HRSG performance and identify design modifications to improve the performance. An effort is also made to explore the software capabilities to make the simulation an efficient and accurate.
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Books on the topic "Gas turbine generator"

1

Hamilton, Stephanie. Microturbine generator test program report: Forum report confidential. Cambridge Energy Research Associates, 1999.

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George, Samerjan, and Business Communications Co, eds. Small-scale power generation: How much? what kind? Business Communications Co., 1999.

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James, Newcomb, and Cambridge Energy Research Associates, eds. Generation gap: U.S. natural gas and electric power in the 1990s. Cambridge Energy Research Associates, 1991.

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Kudinov, Anatoliy, Svetlana Ziganshina, and Kirill Husainov. Calculation of thermal schemes of combined-cycle gas installations of thermal power plants. INFRA-M Academic Publishing LLC., 2023. http://dx.doi.org/10.12737/1865669.

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The fundamentals of the theory of increasing the thermal efficiency of power plants through the use of gas turbine and combined-cycle technologies are presented. The classification is given, the basic and calculated thermal schemes, parameters and characteristics of gas turbine and combined-cycle gas installations of various types are given, the principles of their operation are described. The designs of combustion chambers and features of fuel combustion in the combustion chambers of gas turbine installations are given. Methods and examples of calculation of thermal schemes of gas turbine installations with heat recovery boilers and combined-cycle thermal power plants are presented.&#x0D; Meets the requirements of the federal state educational standards of higher education of the latest generation.&#x0D; For students of energy specialties of universities and faculties studying in the areas of training "Heat power engineering and heat engineering", "Power engineering", as well as for graduate students of universities and engineering and technical workers of power plants.
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Zuev, Sergey, Ruslan Maleev, and Aleksandr Chernov. Energy efficiency of electrical equipment systems of autonomous objects. INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1740252.

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When considering the main trends in the development of modern autonomous objects (aircraft, combat vehicles, motor vehicles, floating vehicles, agricultural machines, etc.) in recent decades, two key areas can be identified. The first direction is associated with the improvement of traditional designs of autonomous objects (AO) with an internal combustion engine (ICE) or a gas turbine engine (GTD). The second direction is connected with the creation of new types of joint-stock companies, namely electric joint-stock companies( EAO), joint-stock companies with combined power plants (AOKEU).&#x0D; The energy efficiency is largely determined by the power of the generator set and the battery, which is given to the electrical network in various driving modes.&#x0D; Most of the existing methods for calculating power supply systems use the average values of disturbing factors (generator speed, current of electric energy consumers, voltage in the on-board network) when choosing the characteristics of the generator set and the battery. At the same time, it is obvious that when operating a motor vehicle, these parameters change depending on the driving mode. Modern methods of selecting the main parameters and characteristics of the power supply system do not provide for modeling its interaction with the power unit start-up system of a motor vehicle in operation due to the lack of a systematic approach.&#x0D; The choice of a generator set and a battery, as well as the concept of the synthesis of the power supply system is a problem studied in the monograph.&#x0D; For all those interested in electrical engineering and electronics.
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J, Gonzalez Avelino, and Electric Power Research Institute, eds. Monitoring and diagnosis of turbine-driven generators. Prentice Hall, 1995.

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Madhlopa, Amos. Principles of Solar Gas Turbines for Electricity Generation. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-68388-1.

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IEEE Power Engineering Society. Electric Machinery Committee., ed. IEEE trial use recommended practice for thermal cycle testing of form-wound stator bars and coils for large generators. Institute of Electrical and Electronics Engineers, 1996.

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Board, Canada National Energy, ed. Natural gas for power generation: Issues and implications. National Energy Board, 2006.

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United States. National Aeronautics and Space Administration., ed. Preliminary assessment of combustion modes for internal combusiton wave rotors. National Aeronautics and Space Administration, 1995.

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Book chapters on the topic "Gas turbine generator"

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Chen, M. J., M. Buamud, and D. M. Grant. "Gas turbine-generator program manual." In Generation Systems Software. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1191-1_6.

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Wang, Lei, Xian-wei Guo, Hong-jiang Shi, Chong Cao, and Hua-hua Ding. "Design and Experiment of Turbine Generator Applied to Gas Drilling." In Springer Series in Geomechanics and Geoengineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-0256-5_17.

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Zhitao, Wang, Li Shuying, Luo Pingping, and Wang Jianqing. "The Dynamic Behavior Simulation Research of Marine Inter-cooled Gas Turbine Generator Group." In Future Control and Automation. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31006-5_28.

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Pleshanov, Konstantin A., Kirill Sterkhov, Dmitry A. Khokhlov, and Mikhail N. Zaichenko. "Pressurized Heat Recovery Steam Generator Design for CCGT with Gas Turbine GT-25PA and Steam Turbine T-100." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9376-2_3.

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Ha, Jin Woong, and Dae Seok Jung. "Unbalance Response Analysis of a Heavy Duty Gas Turbine-Generator with Rigid Coupling Offset." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_61.

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Lapini, G. L., M. Zippo, A. Vallini, G. Diana, and A. Collina. "High Vibration on a 90MW Gas Turbine-Generator due to a Supporting Structure Resonance." In Rotordynamics ’92. Springer London, 1992. http://dx.doi.org/10.1007/978-1-4471-1979-1_39.

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Haddout, S., and Jian Zhang. "Numerical Investigation of the Aerodynamic and Thermal Behavior of a Flow Around the Blades of an Axial Gas Turbine." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4355-1_50.

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AbstractGas turbines have emerged as integral components in various industrial applications, particularly in the generation of electrical power. The widespread adoption of gas turbines has sparked increased interest among researchers and designers to explore and enhance various aspects of this machinery. This study is dedicated to simulating the flow of compressible transonic fluid through a configuration of eight blades, akin to those found in gas turbines. The primary objective is to analyze and determine the pressure and temperature distribution surrounding each blade. The configuration under investigation aligns with the one previously studied by T. Arts through experimental means. The numerical results generated by the Fluent code will be examined and discussed, shedding light on the intricacies of fluid dynamics within this specific turbine blade arrangement. This research aims to contribute valuable insights for further refining the performance and efficiency of gas turbines in practical applications.
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Waddar, Ganapati. "Condition Assessment and Restoration of Gas Turbine Generator Foundation of 1 × 370 MW Combined Cycle Power Plant." In Lecture Notes in Civil Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-12011-4_21.

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Pilotto, Rafael, and Rainer Nordmann. "Vibration Control of a Gas Turbine-Generator Rotor in a Combined Cycle System by Means of Active Magnetic Bearings." In Mechanisms and Machine Science. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99262-4_37.

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Nirmal Halder, Arun K. Saha, and P. K. Panigrahi. "Influence of Delta Wing Vortex Generator on Counter Rotating Vortex Pair in Film Cooling Application of Gas Turbine Blade." In Fluid Mechanics and Fluid Power – Contemporary Research. Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-2743-4_10.

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Conference papers on the topic "Gas turbine generator"

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Shivaramaiah, Subbaramu, and Mahesh K. Varpe. "Effect of Airfoil Vortex Generator on the Performance and Stability of a Transonic Axial Compressor." In ASME 2021 Gas Turbine India Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gtindia2021-75881.

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Abstract In the present research work, effect of airfoil vortex generator on performance and stability of transonic compressor stage is investigated through CFD simulations. In turbomachines vortex generators are used to energize boundary and generated vortex is made to interact with tip leakage flow and secondary flow vortices formed in rotor and stator blade passage. In the present numerical investigation symmetrical airfoil vortex generator is placed on rotor casing surface close to leading edge, anticipating that vortex generated will be able to disturb tip leakage flow and its interaction with rotor passage core flow. Six different vortex generator configuration are investigated by varying distance between vortex generator trailing edge and rotor leading edge. Particular vortex generator configuration shows maximum improvement of stall margin and operating range by 5.5% and 76.75% respectively. Presence of vortex generator alters flow blockage by modifying flow field in rotor tip region and hence contributes to enhancement of stall margin. As a negative effect, interaction of vortex generator vortices and casing causes surface friction and high entropy generation. As a result compressor stage pressure ratio and efficiency decreases.
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Hernández Rossette, Alejandro, Rafael García Illescas, and Zdzislaw Mazur. "Aeroderivative Gas Turbine Coupling Generator Redesign." In ASME 2013 Gas Turbine India Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gtindia2013-3720.

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A major failure event was experienced at a 44 MW plant powered by four aeroderivative gas turbines arranged in two units, property of the Federal Commission of Electricity (CFE). The failure consisted of total fracture in the shaft coupling between the generator and free-turbine. Unit 2 has a twin pack configuration with two aero derivative Pratt&amp;Whitney 20 MW gas turbines coupled to one generator at both end sides. The “A” side generator coupling was completely damaged as well as the coupling configuration at the free turbine. Failure analysis showed as root cause, an abnormal configuration of the coupling systems between the free turbine to rotor generator at side “A”. This side had an additional shaft component to compensate a longer coupling distance between the turbine and generator. This was longer than the original distance, generating additional dynamic forces during operation leading to a fatigue failure mechanism. The replacement coupling configuration for the rotor generator was different than the Original Equipment Manufacturer (OEM). The new (non-OEM) spare rotor generator was shorter in the longitudinal direction than the original one, forcing the addition of a new shaft in one side of the generator. This work describes the rehabilitation process of the generator coupling by the replacement of the old configuration by a new redesigned coupling. This was done keeping the original configuration distances and components for both end shaft sides of the rotor generator. The paper includes the redesigned couple analysis by finite element method and the in-situ activities for the installation of the new couple in the rotor generator.
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Kumar Kanneri Thettiyepath, Arun, Jesper Madsen, Sudhakar Piragalathalwar, and Aswatha Narayana. "Parametric Studies of Vortex Generators Using Source Term Modelling." In ASME 2017 Gas Turbine India Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gtindia2017-4645.

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The Vortex Generators located over the airfoils are generally small in size. Due to its small size and shape, the mesh requirements are high and mesh generation becomes complex. In this study, the source term modelling approach termed as BAY model developed by Bender et al. is used to simulate the effect of Vortex Generators. One of the advantages of BAY model is its simplicity eliminating the complex grid requirements around the Vortex Generator for the Computational Fluid Dynamic simulations. Comparing with the BAY model approach, mesh resolved Vortex Generator approach will need more number of cells in the domain. Hence using the B AY model is advantageous in computational cost also. The solver EllipSys3D, which is an incompressible structured multi-block finite volume based RANS (Reynolds Averaged Navier-Stokes) solver, is used for the studies. Parametric studies using BAY model are carried out for different heights, lengths, chord wise locations and spacing of Vortex Generators on a wind turbine airfoil. The qualitative results predicted using BAY model are in lined with experimental results from literature showing that it is capable to mimic the effect of Vortex Generators. So overall due to its simplicity source term modelling through BAY model can be used for quick parametric studies.
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Osintsev, K. V., T. B. Zhirgalova, and A. V. Khasanova. "Operation principles of gas turbine generator." In 2017 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM). IEEE, 2017. http://dx.doi.org/10.1109/icieam.2017.8076230.

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Katti, Vadiraj V., Anandkumar S. Malipatil, and Mahesh R. Ingalagi. "Experimental Investigation of Flow Characteristics in a Square Duct With Delta-Wing Vortex Generators." In ASME 2013 Gas Turbine India Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gtindia2013-3773.

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The influence of delta wing vortex generators on the wall of square duct and the pressure loss penalty has been experimentally investigated in this study. The combined effects of geometrical parameters of delta wing vortex generators on friction factor ratios are reported for the Reynolds number based on the duct hydraulic diameter in the range of 8000–24000. The geometrical parameters of vortex generators systematically varied in this study are the pitch to vortex generator height ratio (p/e), vortex generator height to duct hydraulic diameter ratio (e/Dh), aspect ratio of vortex generator (ar). Results are reported for 0.1 ≤ e/Dh ≤ 0.5, 1.6 ≤ p/e ≤ 16, 1.6 ≤ ar ≤ 14.9, in duct having aspect ratio AR = 1. The experimental results of the present study for friction factor in smooth square duct agree well with values estimated from correlations proposed by Blasius.
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Mankbadi, R. R., and S. Mikhail. "A Study of a Turbine-Generator System for Low-Head Hydropower." In ASME 1985 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1985. http://dx.doi.org/10.1115/85-gt-141.

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A method is outlined for determining the optimum operating conditions of a turbine-generator unit installed across a low-head irrigation structure for electrical power generation. For a given regulator’s characteristic, the unit’s rated power and design parameters are determined such that its cost-benefit ratio is minimum. The economical feasibility of the microhydro plant is studied by comparing its life-time cost to its life-time benefit. The benefit is determined by the cost of the corresponding energy generated through a diesel-driven generator set. The microhydro plant was found to be economically feasible over a wide range of inflation and interest rates.
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Fu, Tao, Qinghai Yang, Chuan Yu, Ming Li, and Chenglong Liao. "A Magnetic Levitation Turbine Generator for Downhole Electronic Devices." In SPE Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210618-ms.

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Abstract With the popularization of electronic wellbore control devices, downhole power supply becomes more and more important. A downhole generator can transform the mechanical energy of underground fluid into electric energy, which is an ideal way to provide power for electrical devices. However, traditional generators have the disadvantages of large starting flow and short service life due to dynamic friction. In this paper, a magnetic levitation turbine generator is introduced to solve the common problem of dynamic friction of packing in a shaft generator. In theory, downhole flow can provide the impact force to spin the turbine. However, the axial component of this force pushes the turbine into the supporting area so much that the friction between them may create too much resistance to start the rotation. To solve this problem, a magnetic levitation structure is proposed in this paper to provide a counterforce to the axial component of the thrust of flow, so that the turbine and the rotor core can float in the pipeline, thus completely eliminating contact friction and allowing free rotation of the turbine. Through 3D printing, turbines of different blade numbers, and blade angles were manufactured. Three design schemes were assembled using these turbines. The experimental results showed that all the turbines can rotate smoothly at high speed and the magnet levitation structure worked well. The rotational stabilities of turbines with magnetic levitation structure at one end and two ends were compared. The experiment showed that the inertia of the turbine with magnetic suspension structure at both ends was greatly reduced and the rotation was more stable. At a flow rate of 100-150m3/d, the rotating speed of the turbine was 600-1500rpm. The output power was 73mW after, which is enough to charge the batteries of downhole electronic devices. Using magnet levitation structure, the turbine generator can overcome the shortcoming of traditional downhole power generators. Such a new generator is expected to offer an intriguing alternative for long-term power supply of downhole electronic devices, which is an important prerequisite for the wellbore control to progress from mechanization to automation.
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Sarkar, S., and Ganesh Ranakoti. "Effect of Vortex Generators on Film Cooling Effectiveness." In ASME 2015 Gas Turbine India Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gtindia2015-1392.

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Film cooling is often adopted, where coolant jets are ejected to form a protective layer on the surface against the hot combustor gases. The bending of jets in crossflow results in Counter Rotating Vortex Pair (CRVP), which is a cause for high jet lift-off and poor film cooling effectiveness in the near field. There are efforts to mitigate this detrimental effect of CRVP and thus to improve the film cooling performance. In the present study, the effects of both downwash and upwash type of vortex generator on film cooling are numerically analysed. A series of discrete holes on a flat plate with 35° streamwise orientation and connected to a common delivery plenum is used here, where the vortex generators are placed upstream of the holes. The blowing ratio and the density ratio are considered as 0.5 and 1.2 respectively with a Reynolds number based on free-stream velocity and diameter of hole being 15885. The computations are performed by ANSYS Fluent 13.0 using k-ε realizable turbulence model. The results show that vortices generated by downwash vortex generator (DWVG) counteracts the effect of CRVP preventing the jet lift-off, which results in increased effectiveness in streamwise as well as in spanwise directions. However, upwash vortex generator (UWVG) augments the effect of CRVP, resulting in poor performance of film cooling.
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Anderson, Roger, Fermin Viteri, Rebecca Hollis, et al. "Oxy-Fuel Gas Turbine, Gas Generator and Reheat Combustor Technology Development and Demonstration." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-23001.

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Future fossil-fueled power generation systems will require carbon capture and sequestration to comply with government green house gas regulations. The three prime candidate technologies that capture carbon dioxide (CO2) are pre-combustion, post-combustion and oxy-fuel combustion techniques. Clean Energy Systems, Inc. (CES) has recently demonstrated oxy-fuel technology applicable to gas turbines, gas generators, and reheat combustors at their 50MWth research test facility located near Bakersfield, California. CES, in conjunction with Siemens Energy, Inc. and Florida Turbine Technologies, Inc. (FTT) have been working to develop and demonstrate turbomachinery systems that accommodate the inherent characteristics of oxy-fuel (O-F) working fluids. The team adopted an aggressive, but economical development approach to advance turbine technology towards early product realization; goals include incremental advances in power plant output and efficiency while minimizing capital costs and cost of electricity [1]. Proof-of-concept testing was completed via a 20MWth oxy-fuel combustor at CES’s Kimberlina prototype power plant. Operability and performance limits were explored by burning a variety of fuels, including natural gas and (simulated) synthesis gas, over a wide range of conditions to generate a steam/CO2 working fluid that was used to drive a turbo-generator. Successful demonstration led to the development of first generation zero-emission power plants (ZEPP). Fabrication and preliminary testing of 1st generation ZEPP equipment has been completed at Kimberlina power plant (KPP) including two main system components, a large combustor (170MWth) and a modified aeroderivative turbine (GE J79 turbine). Also, a reheat combustion system is being designed to improve plant efficiency. This will incorporate the combustion cans from the J79 engine, modified to accept the system’s steam/CO2 working fluid. A single-can reheat combustor has been designed and tested to verify the viability and performance of an O-F reheater can. After several successful tests of the 1st generation equipment, development started on 2nd generation power plant systems. In this program, a Siemens SGT-900 gas turbine engine will be modified and utilized in a 200MWe power plant. Like the 1st generation system, the expander section of the engine will be used as an advanced intermediate pressure turbine and the can-annular combustor will be modified into a O-F reheat combustor. Design studies are being performed to define the modifications necessary to adapt the hardware to the thermal and structural demands of a steam/CO2 drive gas including testing to characterize the materials behavior when exposed to the deleterious working environment. The results and challenges of 1st and 2nd generation oxy-fuel power plant system development are presented.
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Maheshwari, Mayank, and Onkar Singh. "Energy and Exergy Analysis of the Kalina Cycle Based Combined Cycle Using Solar Heating." In ASME 2014 Gas Turbine India Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gtindia2014-8192.

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Gas and steam combined cycle has Brayton cycle and Rankine cycle as topping and bottoming cycles respectively. Gas based topping cycle has flue gases leaving at high temperature which are utilized in heat recovery steam generator for steam generation. The steam thus generated is used for running steam turbine in bottoming cycle. It is seen that the heat recovery steam generator although offers reasonable heat recovery from flue gases but the temperature variation profile of gas does not match with that of steam generation. The use of ammonia in place of steam as working fluid offers a good matching of temperature profile of flue gas and ammonia and thus has capability to offer effective utilization of waste heat. In present work thermodynamic analysis of Kalina cycle used in combined cycle has been carried out. It includes the performance evaluation in terms of ammonia mass concentration, turbine inlet temperature and cycle pressure ratio. The results show that on increasing the ammonia mass fraction the efficiency of the cycle decreases up to ammonia mass concentration of 0.7 but beyond that efficiency starts increasing. It also indicates that by installing the solar heating, there occurs a heat gain up to 5% as compared to without solar heating for any given operating parameters.
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Reports on the topic "Gas turbine generator"

1

Eugene Baxter, Roger E. Anderson, and Stephen E. Doyle. FABRICATE AND TEST AN ADVANCED NON-POLLUTING TURBINE DRIVE GAS GENERATOR. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/823146.

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Unknown. DESIGN, FABRICATION, AND TESTING OF AN ADVANCED, NON-POLLUTING TURBINE DRIVE GAS GENERATOR. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/791549.

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Unknown. DESIGN, FABRICATION, AND TESTING OF AN ADVANCED, NON-POLLUTING TURBINE DRIVE GAS GENERATOR. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/791993.

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Unknown. DESIGN, FABRICATION, AND TESTING OF AN ADVANCED, NON-POLLUTING TURBINE DRIVE GAS GENERATOR. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/806998.

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Stephen E. Doyle. DESIGN, FABRICATION, AND TESTING OF AN ADVANCED, NON-POLLUTING TURBINE DRIVE GAS GENERATOR. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/812537.

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Unknown. DESIGN, FABRICATION, AND TESTING OF AN ADVANCED, NON-POLLUTING TURBINE DRIVE GAS GENERATOR. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/794329.

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Baxter, E. W. DESIGN, FABRICATION, AND TESTING OF AN ADVANCED, NON-POLLUTING TURBINE DRIVE GAS GENERATOR. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/803722.

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Epstein, A. H., K. S. Breuer, J. H. Lang, M. A. Schmidt, and S. D. Senturia. Micro Gas Turbine Generators. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada391343.

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Simmons. L51814 Survey Of Dry Low NOx Combustor Experience. Pipeline Research Council International, Inc. (PRCI), 1999. http://dx.doi.org/10.55274/r0010207.

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Air pollution has become a major public issue and it is now evident that unburned hydrocarbons, CO, and NOx must meet increasingly restrictive standards. The emissions of nitrogen oxides by gas turbines are of concern because of their high toxicity and their role in the formation of photochemical smog. The formation of NOx occurs in a gas-fired gas turbine when combustion temperatures exceed a critical level for sufficient time to allow atmospheric nitrogen and oxygen to combine. For those gas turbine applications where steam or ultra-pure water are readily available, then steam or water injection are preferable NOx control strategies. Because these attributes are usually not available at pipeline compression stations, the turbine operators in the pipeline industry have chosen to control emissions by a dry combustion process. An alternative would be a catalytic reduction of the NOx generated in the exhaust gas but this requires an investment in SCR hardware and continuous use of ammonia, which adds to operating costs. Historically, dry low emissions (DLE) systems have experienced a greater than expected number of start-up problems as new products were introduced to the marketplace. A need of the gas pipeline industry is to identify the operating problems experienced with DLE systems, to link these problems to their most probable cause, to estimate costs incurred, and to glean strategies for avoiding future problems. A comprehensive PRCI sponsored survey of operators and manufacturers was completed which provides assistance to gas turbine operators in making NOx control procurement decisions and for budgeting operations and maintenance costs. This first ever detailed study provides information on typical operating costs and problems incurred with the currently operating DLE systems and serves as a guide for individual companies in the selection of cost effective low NOx combustion systems from available components offered by the OEM and after-market suppliers. The information developed by this report is intended to guide operators in estimating maintenance and repair costs to establish a lifetime cost of operation.
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Amos, Ian, and Rick Hackney. PO-743-22201-R01 Validation of Next Generation Predictive Emissions Monitoring System for Gas Turbines. Pipeline Research Council International, Inc. (PRCI), 2024. http://dx.doi.org/10.55274/r0000071.

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This report describes field trial demonstration and validation of a Gas Turbine Predictive Emissions Monitoring System (PEMS) using engine data from Siemens Energy SGT-300 gas turbine compressor drivers at SoCalGas Blythe Compressor Station, California, USA. The advanced PEMS model results are compared with CEMS data taken from process analyzers measuring emissions in the gas turbine exhaust. After the necessary corrections on emissions for water content and oxygen content in the exhaust, the values for PEMS and CEMS show good agreement across a wide range of operating conditions. Areas where there are deviations between the values are investigated and potential improvements and modifications are suggested. The use of PEMS shows promise as a robust and cost-effective alternative to analyzer-based CEMS and can be used to provide additional diagnostic information. Recommendations for future work are presented.
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