Relevant bibliographies by topics / Gas Grain Simulation Facility

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

Academic literature on the topic 'Gas Grain Simulation Facility'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Gas Grain Simulation Facility"

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McKay, C. P., C. R. Stoker, J. Morris, G. Conley, and D. Schwartz. "Space station gas-grain simulation facility: Application to exobiology." Advances in Space Research 6, no. 12 (January 1986): 195–206. http://dx.doi.org/10.1016/0273-1177(86)90086-4.

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Fogleman, G., J. L. Huntington, G. C. Carle, and J. A. Nuth. "Microgravity particle research on the space station: The gas-grain simulation facility." Advances in Space Research 9, no. 2 (January 1989): 91–94. http://dx.doi.org/10.1016/0273-1177(89)90369-4.

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Huntington, Judith L., and Guy Fogleman. "On performing exobiology experiments on an earth-orbital platform with the gas-grain simulation facility." Origins of Life and Evolution of the Biosphere 19, no. 3-5 (May 1989): 493–94. http://dx.doi.org/10.1007/bf02388968.

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Salama, Farid, Ella Sciamma-O’Brien, Cesar S. Contreras, and Salma Bejaoui. "Recent Progress in Laboratory Astrophysics Achieved with NASA Ames’ COSmIC Facility." Proceedings of the International Astronomical Union 13, S332 (March 2017): 364–69. http://dx.doi.org/10.1017/s1743921317011619.

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AbstractWe describe the characteristics and the capabilities of the laboratory facility, COSmIC, that was developed at NASA Ames to generate, process and analyze interstellar, circumstellar and planetary analogs in the laboratory. COSmIC stands for ’Cosmic Simulation Chamber’ and is dedicated to the study of neutral and ionized molecules and nanoparticles under the low temperature and high vacuum conditions that are required to simulate various space environments such as diffuse interstellar clouds, circumstellar outflows and planetary atmospheres. Recent results obtained using COSmIC will be highlighted. In particular, the progress that has been achieved in the domain of the diffuse interstellar bands (DIBs) and in monitoring, in the laboratory, the formation of circumstellar dust grains and planetary atmosphere aerosols from their gas-phase molecular precursors. Plans for future laboratory experiments on interstellar and planetary molecules and grains will also be addressed, as well as the implications of the studies underway for astronomical observations and past and future space mission data analysis.
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Rotz, C. Alan, Senorpe Asem-Hiablie, Erin L. Cortus, Mindy J. Spiehs, Shafiqur Rahman, and Anne M. K. Stoner. "An Environmental Assessment of Cattle Manure and Urea Fertilizer Treatments for Corn Production in the Northern Great Plains." Transactions of the ASABE 64, no. 4 (2021): 1185–96. http://dx.doi.org/10.13031/trans.14275.

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HighlightsThe Integrated Farm System Model appropriately represented average emission rates measured in corn production.Compared to the use of feedlot manure, application of bedded pack manure generally increased N and P losses.Compared to inorganic fertilizer use, cattle manure increased soluble P loss while reducing GHG emission.Production and environmental differences among production systems were similar under recent and future climates.Abstract. Nitrogen (N), phosphorus (P), and carbon (C) emissions from livestock systems have become important regional, national, and international concerns. Our objective was to use process-level simulation to explore differences among manure and inorganic fertilizer treatments in a corn production system used to feed finishing cattle in the Northern Great Plains region of the U.S. Our analysis included model assessment, simulation to compare treatments under recent climate, and comparisons using projected midcentury climate. The Integrated Farm System Model was evaluated in representing the performance and nutrient losses of corn production using cattle manure without bedding, manure with bedding, urea, and no fertilization treatments. Two-year field experiments conducted near Clay Center, Nebraska; Brookings, South Dakota; and Fargo, North Dakota provided observed emission data following these treatments. Means of simulated emission rates of methane, ammonia, and nitrous oxide were generally similar to those observed from field-applied manure or urea fertilizer. Simulation of corn production systems over 25 years of recent climate showed greater soluble P runoff with use of feedlot and bedded manure compared to use of inorganic fertilizers, but life-cycle fossil energy use and greenhouse gas emission were decreased. Compared to feedlot manure, application of bedded pack manure generally increased N and P losses in corn production by retaining more N in manure removed from a bedded housing facility and through increased runoff because a large portion of the stover was removed from the cornfield for use as bedding material. Simulation of these treatments using projected midcentury climate indicated a trend toward a small increase in simulated grain production in the Dakotas and a small decrease for irrigated corn in Nebraska. Climate differences affected the three production systems similarly, so production and environmental impact differences among the fertilization systems under future climate were similar to those obtained under recent climate. Keywords: Climate change, Greenhouse gas, Integrated Farm System Model, Nutrient losses.
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Würsching, C. "Residual gas analysis in a space simulation facility." Vacuum 43, no. 1-2 (January 1992): 137–41. http://dx.doi.org/10.1016/0042-207x(92)90200-g.

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Schobesberger, P., M. Mann, and M. Haigis. "Optimisation of high pressure gas quenching by application of CFD analysis." Journal de Physique IV 120 (December 2004): 769–75. http://dx.doi.org/10.1051/jp4:2004120089.

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At Aichelin GmbH an experimental high pressure gas quenching facility was used for heat treatment of automotive parts. Since uniformity and core strength of the heat treated parts were insufficient, a CFD-analysis was carried out to investigate the influence of the flow field on the performance of the facility. The results showed that the design of the facility was quite unfavorable from a fluid dynamics point of view. Large variations of flow velocity occurred in the charge zone and high pressure loss was produced by reduced cross section at shut-off valves. An optimization of the existing facility did not seem promising. Consequently, a new facility concept was designed, incorporating the results of the previous simulation and again tested by means of numerical simulation. The charge was simulated by a grid of cylindrical parts and in addition the gas pressure was increased to 20 bars. The new design demonstrated a very homogeneous flow field in the vicinity of the charge and pressure drop was reduced by three quarters. However the attempted quenching performance was not yet achieved with the initial blower. The results from the simulation led to the design of a full scale industrial gas quenching facility with an improved fan. This facility was able to meet the requirements in terms of core strength and uniformity from the beginning.
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Winter, Thomas, Richard Hoffman, and Chaitanya S. Deo. "Grain Subdivision Fission Gas Swelling Model for UO2." MRS Advances 1, no. 35 (2016): 2465–70. http://dx.doi.org/10.1557/adv.2016.497.

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ABSTRACTUnder high burnup UO2 fuel pellets can experience high burnup structure (HBS) at the rim also known as rim effect. The HBS is exceptionally porous with fine grain sizes. HBS increases the swelling further than it would have achieved at a larger grain size. A theoretical swelling model is used in conjunction with a grain subdivision simulation to calculate the swelling of UO2. In UO2 the nucleation sites are at vacancies and the bubbles are concentrated at grain boundaries. Vacancies are created due to irradiation and gas diffusion is dependent on vacancy migration. In addition to intragranular bubbles, there are intergranular bubbles at the grain boundaries. Over time as intragranular bubbles and gas atoms accumulate on the grain boundaries, the intergranular bubbles grow and cover the grain faces. Eventually they grow into voids and interconnect along the grain boundaries, which can lead to fission gas release when the interconnection reaches the surface. This is known as the saturation point. While the swelling model used does not originally incorporate a changing grain size, the simulation allows for more accurate swelling calculations by introducing a fractional HBS based on the temperature and burnup of the pellet. The fractional HBS is introduced with a varying grain size. Our simulations determine the level of swelling and saturation as a function of burnup by combining an independent model and simulation to obtain a more comprehensive model.
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Chen, Xun, and Tahsin Tecelli Öpöz. "Simulation of Grinding Surface Creation – A Single Grit Approach." Advanced Materials Research 126-128 (August 2010): 23–28. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.23.

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The paper presents an investigation of grinding material removal mechanism using finite element method. Understanding of grinding removal mechanism relies on the investigation of material removal by each individual grain. Although some analytical formulations have been developed to predict and to quantify the machining events in grinding, they do not illustrate every stage of abrasive actions. Finite element analysis provides good facility to present details of physical behaviour in grinding. In this research, material removal mechanism of grinding, namely rubbing, ploughing and cutting, is discussed with the variation friction coefficient. The major emphasis here is on the ploughing. Total force variation exerted during indention and sliding of a grain is also presented along its path.
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Fradkov, V. E., D. G. Udler, and R. E. Kris. "Computer simulation of two-dimensional normal grain growth (the ‘gas’ approximation)." Philosophical Magazine Letters 58, no. 6 (December 1988): 277–83. http://dx.doi.org/10.1080/09500838808214765.

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Dissertations / Theses on the topic "Gas Grain Simulation Facility"

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El, Gemayel Gemayel. "Integration and Simulation of a Bitumen Upgrading Facility and an IGCC Process with Carbon Capture." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23274.

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Hydrocracking and hydrotreating are bitumen upgrading technologies designed to enhance fuel quality by decreasing its density, viscosity, boiling point and heteroatom content via hydrogen addition. The aim of this thesis is to model and simulate an upgrading and integrated gasification combined cycle then to evaluate the feasibility of integrating slurry hydrocracking, trickle-bed hydrotreating and residue gasification using the Aspen HYSYS® simulation software. The close-coupling of the bitumen upgrading facilities with gasification should lead to a hydrogen, steam and power self-sufficient upgrading facility with CO2 capture. Hydrocracker residue is first withdrawn from a 100,000 BPD Athabasca bitumen upgrading facility, characterized via ultimate analysis and then fed to a gasification unit where it produces hydrogen that is partially recycled to the hydrocracker and hydrotreaters and partially burned for power production in a high hydrogen combined cycle unit. The integrated design is simulated for a base case of 90% carbon capture utilizing a monoethanolamine (MEA) solvent, and compared to 65% and no carbon capture scenarios. The hydrogen production of the gasification process is evaluated in terms of hydrocracker residue and auxiliary petroleum coke feeds. The power production is determined for various carbon capture cases and for an optimal hydrocracking operation. Hence, the feasibility of the integration of the upgrading process and the IGCC resides in meeting the hydrogen demand of the upgrading facility while producing enough steam and electricity for a power and energy self-sufficient operation, regardless of the extent of carbon capture.
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Hincelin, Ugo. "Caractérisation physico-chimique des premières phases de formation des disques protoplanétaires." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14603/document.

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Les étoiles de type solaire se forment par l'effondrement d'un nuage moléculaire, durant lequel la matière s'organise autour de l'étoile en formation sous la forme d'un disque, appelé disque protoplanétaire. Dans ce disque se forment les planètes, comètes et autres objets du système stellaire. La nature de ces objets peut donc avoir un lien avec l'histoire de la matière du disque.J'ai étudié l'évolution chimique et physique de cette matière, du nuage au disque, à l'aide du code de chimie gaz-grain Nautilus.Une étude de sensibilité à divers paramètres du modèle (comme les abondances élémentaires et les paramètres de chimie de surface) a été réalisée. Notamment, la mise à jour des constantes de vitesse et des rapports de branchement des réactions de notre réseau chimique s'est avérée influente sur de nombreux points, comme les abondances de certaines espèces chimiques, et la sensibilité du modèle à ses autres paramètres.Plusieurs modèles physiques d'effondrement ont également été considérés. L'approche la plus complexe et la plus consistante a été d'interfacer notre code de chimie avec le code radiatif magnétohydrodynamique de formation stellaire RAMSES, pour modéliser en trois dimensions l'évolution physique et chimique de la formation d'un jeune disque. Notre étude a démontré que le disque garde une trace de l'histoire passée de la matière, et sa composition chimique est donc sensible aux conditions initiales
Low mass stars, like our Sun, are born from the collapse of a molecular cloud. The matter falls in the center of the cloud, creating a protoplanetary disk surrounding a protostar. Planets and other solar system bodies will be formed in the disk.The chemical composition of the interstellar matter and its evolution during the formation of the disk are important to better understand the formation process of these objects.I studied the chemical and physical evolution of this matter, from the cloud to the disk, using the chemical gas-grain code Nautilus.A sensitivity study to some parameters of the code (such as elemental abundances and parameters of grain surface chemistry) has been done. More particularly, the updates of rate coefficients and branching ratios of the reactions of our chemical network showed their importance, such as on the abundances of some chemical species, and on the code sensitivity to others parameters.Several physical models of collapsing dense core have also been considered. The more complex and solid approach has been to interface our chemical code with the radiation-magneto-hydrodynamic model of stellar formation RAMSES, in order to model in three dimensions the physical and chemical evolution of a young disk formation. Our study showed that the disk keeps imprints of the past history of the matter, and so its chemical composition is sensitive to the initial conditions
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Gavino, Sacha. "Observation and modelling of disks about young stars with ALMA : implication for planetary formation." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0185.

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La formation des étoiles s’accompagne généralement de la formation d'undisque où peuvent se former les planètes. Ces disques protoplanétaires contiennent un mélange de 99 % de gaz et de 1 % de particules solides appelées grains de poussière. Initialement de taille sub-micrométrique, ces grains vont progressivement s’agglomérer, grossir, et potentiellement permettre la formation de planètes autour de l’étoile.L’étude de la composition en molécules et en grains des disques jeunes est fondamentale pour contraindre les conditions physico-chimiques initiales de la formation planétaire et l’origine de la composition chimique des planètes.L’objectif de la thèse a été de construire des modèles sophistiqués de disques jeunes typiques constitués de gaz et d’une population de grains de différentes tailles puis, de manière inédite, de tester par simulations numériques l’implication de cette distribution en taille et en température sur l’évolution chimique.Pour ce faire, nous avons couplé le code de transfert radiatif 3D Monte-Carlo POLARIS au code de simulation gaz-grain dépendant du temps NAUTILUS. Le code de transfert radiatif nous a permis de calculer finement la température des grains en fonction de leur taille et de leur position ainsi que le flux UV au sein du disque. Le code gaz-grain, quant à lui, a ensuite pu simuler l’évolution des abondances chimiques dans nos modèles de disques. De plus, le calcul du flux UV effectué par POLARIS couplé à l’utilisation de section efficaces moléculaires provenant de bases de données a permis le calcul en fonction de la fréquence des taux de photoabsorption, de photodissociation et de photoionisation des molécules
The star formation process usually proceeds with protoplanetary disks. These disks contain a mixture of gas, accounting for 99 % of the disk mass, and of solid particles called dust grains (1 % of the disk mass). These grains, initially at sub-micro metric sizes, gradually coagulate, grow, and potentially allow for the formation of planets about the star.The study of the dust and molecular composition of young disks is fundamental to constraint the physical and chemical initial conditions of planetary formation and the origins of the chemical composition of the planetary cores.The goal of this thesis was to build state-of-the-art models of typical young disks consisting of gas and of a population of grains of multiple sizes, then, in a new approach, to test with the use of numerical simulations the implication of the size and temperature distributions on the chemical evolution of disks.To achieve this, we have coupled the 3D Monte-Carlo radiative transfer code POLARIS to the time-dependent gas-grain code NAUTILUS. The radiative transfer code allowed us to finely compute the grain temperature as a function of the size and location as well as the UV flux within the disk. The gas-grain code was able to simulate the evolution of the chemical abundances in our disk models. Moreover, the computation of the UV flux by POLARIS coupled to a set of molecular cross-sections extracted from a comprehensive database allowed us to compute as a function of the frequency the rates of molecular photoabsorption, photodissociation, and photoionization
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Books on the topic "Gas Grain Simulation Facility"

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U.S. Office of Space Science and Applications. Life science space station planning document: A reference payload for the Exobiology Research Facilities. Washington: NASA, 1987.

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Miller, J. B. Feasibility study for gas-grain simulation study. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1988.

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Center, Ames Research, ed. Gas-Grain Simulation Facility. [Moffett Field, Calif.]: NASA Ames Research Center, 1993.

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Center, Ames Research, ed. Gas-Grain Simulation Facility. [Moffett Field, Calif.]: NASA Ames Research Center, 1993.

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Center, Ames Research, ed. Gas-Grain Simulation Facility. [Moffett Field, Calif.]: NASA Ames Research Center, 1993.

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United States. National Aeronautics and Space Administration., ed. Gas-grain simulation facility (CGSF). [Washington, DC]: National Aeronautics and Space Administration, 1993.

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United States. National Aeronautics and Space Administration., ed. Gas-grain simulation facility (CGSF). [Washington, DC]: National Aeronautics and Space Administration, 1993.

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United States. National Aeronautics and Space Administration., ed. Gas-grain simulation facility (CGSF). [Washington, DC]: National Aeronautics and Space Administration, 1993.

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M, Petach, and Ames Research Center, eds. Gas-Grain Simulation experiment module conceptual design and Gas-Grain Simulation Facility breadboard development. [Moffett Field, Calif.]: National Aeronautics and Space Administration, Ames Research Center, 1993.

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M, Petach, and Ames Research Center, eds. Gas-Grain Simulation experiment module conceptual design and Gas-Grain Simulation Facility breadboard development. [Moffett Field, Calif.]: National Aeronautics and Space Administration, Ames Research Center, 1993.

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Book chapters on the topic "Gas Grain Simulation Facility"

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Mejia, Guilherme Lourenço. "Solid Rocket Motor Internal Ballistics Simulation Considering Complex 3D Propellant Grain Geometries." In Energetic Materials Research, Applications, and New Technologies, 146–69. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-2903-3.ch007.

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Solid rocket motors (SRM) are extensively employed in satellite launchers, missiles and gas generators. Design considers propulsive parameters with dimensional, manufacture, thermal and structural constraints. Solid propellant geometry and computation of its burning rate are essential for the calculation of pressure and thrust vs time curves. The propellant grain geometry changes during SRM burning are also important for structural integrity and analysis. A computational tool for tracking the propagation of tridimensional interfaces and shapes is then necessary. In this sense, the objective of this work is to present the developed computational tool (named RSIM) to simulate the burning surface regression during the combustion process of a solid propellant. The SRM internal ballistics simulation is based on 3D propagation, using the level set method approach. Geometrical and thermodynamic data are used as input for the computation, while simulation results of geometry and chamber pressure versus time are presented in test cases.
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Deseure, Jonathan, and Jérôme Aicart. "Solid Oxide Steam Electrolyzer: Gas Diffusion Steers the Design of Electrodes." In Electrodialysis. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.90352.

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The hydrogen production by SOECs coupled with renewable energy sources is a promising route for the sustainability hydrogen economy. Multiphysics computing simulations appear to be the most efficient approaches to analyze the coupled mechanisms of SOEC operation. Using a relevant model, it is possible to predict the electrical behavior of solid oxide electrodes considering the current collector design. The influences of diffusion and grain diameter on cell performances can be investigated through 2D simulations, current–voltage characteristics, and current source distribution through electrodes. The simulation results emphasize that diffusion is linked to a relocation of the reaction away from the interface electrolyte/electrode, in the volume of the cathode. Furthermore, the current collector proves itself to be a great obstacle to gas access, inducing underneath it a shortage of steam. Inducing gradients of grain diameters in both anode and cathode drives the current sources to occur close to the electrode/electrolyte interface, thus decreasing ohmic losses and facilitating gas access. This approach shows the crucial importance of cathode microstructure as this electrode controls the cell response.
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Obara, Shin’ya. "Fuel Reduction Effect of the Solar Cell and Diesel Engine Hybrid System with a Prediction Algorithm of Solar Power Generation." In Green Technologies, 815–39. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-472-1.ch414.

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Green energy utilization technology is an effective means of reducing greenhouse gas emissions. We developed the production-of-electricity prediction algorithm (PAS) of the solar cell. In this algorithm, a layered neural network is made to learn based on past weather data and the operation plan of the hybrid system (proposed system) of a solar cell and a diesel engine generator was examined using this prediction algorithm. In addition, system operation without a electricity-storage facility, and the system with the engine generator operating at 25% or less of battery residual quantity was investigated, and the fuel consumption of each system was measured. Numerical simulation showed that the fuel consumption of the proposed system was modest compared with other operating methods. However, there was a significant difference in the prediction error of the electricity production of the solar cell and the actual value, and the proposed system was shown to be not always superior to others. Moreover, although there are errors in the predicted and actual values using PAS, there is no significant influence in the operation plan of the proposed system in almost all cases.
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Conference papers on the topic "Gas Grain Simulation Facility"

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Tucker, David, Eric Liese, John VanOsdol, Larry Lawson, and Randall S. Gemmen. "Fuel Cell Gas Turbine Hybrid Simulation Facility Design." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33207.

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Fuel cell hybrid power systems have potential for the highest electrical power generation efficiency. Fuel cell gas turbine hybrid systems are currently under development as the first step in commercializing this technology. The dynamic interdependencies resulting from the integration of these two power generation technologies is not well understood. Unexpected complications can arise in the operation of an integrated system, especially during startup and transient events. Fuel cell gas turbine systems designed to operate under steady state conditions have limitations in studying the dynamics of a transient event without risk to the more fragile components of the system. A 250kW experimental fuel cell gas turbine system test facility has been designed at the National Energy Technology Laboratory (NETL), U.S. Department of Energy to examine the effects of transient events on the dynamics of these systems. The test facility will be used to evaluate control strategies for improving system response to transient events and load following. A fuel cell simulator, consisting of a natural gas burner controlled by a real time fuel cell model, will be integrated into the system in place of a real solid oxide fuel cell. The use of a fuel cell simulator in the initial phases allows for the exploration of transient events without risk of destroying an actual fuel cell. Fuel cell models and hybrid system models developed at NETL have played an important role in guiding the design of facility equipment and experimental research planning. Results of certain case studies using these models are discussed. Test scenarios were analyzed for potential thermal and mechanical impact on fuel cell, heat exchanger and gas turbine components. Temperature and pressure drop calculations were performed to determine the maximum impact on system components and design. Required turbine modifications were designed and tested for functionality. The resulting facility design will allow for examination of startup, shut down, loss of load to the fuel cell during steady state operations, loss of load to the turbine during steady state operations and load following.
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Maldonado, Carlos A., Taylor C. Lilly, and Andrew D. Ketsdever. "The development of a combined effects space simulation facility." In 28TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS 2012. AIP, 2012. http://dx.doi.org/10.1063/1.4769723.

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Sreekireddy, Pavani, T. Kishen Kumar Reddy, Venugopal Dadi, and P. Bhramara. "CFD Simulation of Steam Ejector System in High Altitude Test (HAT) Facility." In ASME 2012 Gas Turbine India Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gtindia2012-9615.

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In the present work, the performance of Steam Ejector System in High Altitude Test (HAT) facility is numerically studied, in the absence of the condenser. Steam is used as secondary fluid to eject the burnt gases into atmosphere. Experimental visualization of mixing of burnt gas and steam and subsequent flow pattern is difficult, hence numerical simulation using FLUENT was done and the resulting flow stream lines, static and total pressures, shock patterns are computed along the ejector system to understand the physics of the problem. Three burnt gas flow rates of 9.17, 27.5 and 45.8 kg/s corresponding to lower, mid and upper limits of ejection from the HAT facility with the steam flow rate of 50 kg/s from Ejector I and 130 kg/s from Ejector II are studied. This corresponds to three cases of Entrainment Ratios for each of the ejector. Results show that for a burnt gas flow rate of 27.5 and 45.8 kg/s with the given dimensions of the HAT facility provided by ASL, DRDO, the gas and steam start mixing in the converging duct, pass through the mixing tube and attains atmospheric pressure at the exit of the HAT facility. For the burnt gas flow rate of 9.17 kg/s, reverse flow is observed in the Ejector II, indicating the malfunction mode of the system for the given design parameters.
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Tsai, Alex, David Tucker, and Tooran Emami. "Adaptive Control of a Nonlinear Fuel Cell-Gas Turbine Balance of Plant Simulation Facility." In ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2014 8th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fuelcell2014-6674.

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A 300kW Solid Oxide Fuel Cell Gas Turbine (SOFC-GT) power plant simulator is evaluated with the use of a Model Reference Adaptive Control scheme, implemented for a set of nonlinear empirical Transfer Functions. The SOFC-GT simulator allows testing of various fuel cell models under a Hardware-in-the-Loop configuration that incorporates a 120kW Auxiliary Power Unit, and Balance-of-Plant components in hardware, and a fuel cell model in software. The adaptation technique is beneficial to plants having a wide range of operation, and strong coupling interaction. The practical implementation of the adaptive methodology is presented through simulation in the MATLAB/SIMULINK environment.
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Tang, Yihao, Malik Hassanaly, Venkat Raman, Brandon A. Sforzo, Sheng Wei, and Jerry M. Seitzman. "Simulation of Gas Turbine Ignition Using Large Eddy Simulation Approach." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-76216.

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This study simulates spark ignition of a modular stratified flow facility using realistic aviation fuel. The combustion model uses a look-up table approach, where the data of the look-up table are collected from lower dimension flamelet/homogeneous ignition calculations. The combustion model is incorporated into a previously developed low-Mach solver, based on which a module is further introduced that uses field patching strategies to represent the ignitor impulse. Simulated results of both ignition successful and failure can be achieved under different initial spark energy input, and the physical effects behind the different ignition behavior is related to the dynamics of the spark kernel impulse. It is further shown that the simulated ignition process exhibits similar features compared to associated experimental results and allows for detailed analysis of the transition to ignited or extinguished states.
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Yim, John, and Jonathan M. Burt. "Characterization of Vacuum Facility Background Gas Through Simulation and Considerations for Electric Propulsion Ground Testing." In 51st AIAA/SAE/ASEE Joint Propulsion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2015. http://dx.doi.org/10.2514/6.2015-3825.

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Xiaoqiang Du, Kenan Ni, Jianneng Chen, Chuanyu Wu, and Yun Zhao. "Numerical Simulation and Experiment of Gas-solid Two-phase Flow in a Cross-flow Grain Cleaning Device." In 2013 Kansas City, Missouri, July 21 - July 24, 2013. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2013. http://dx.doi.org/10.13031/aim.20131586235.

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Palmer, Grant, Dinesh Prabhu, Aaron Brandis, Troy Eichmann, Daniel Potter, and Timothy McIntyre. "Numerical Simulation of Radiation Measurements taken in the X2 Facility for Mars and Titan Gas Mixtures." In 42nd AIAA Thermophysics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-3768.

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9

Tucker, David, Larry Lawson, and Randy Gemmen. "Preliminary Results of a Cold Flow Test in a Fuel Cell Gas Turbine Hybrid Simulation Facility." In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/gt2003-38460.

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Abstract:
The dynamic interdependencies created during the integration of fuel cell and a gas turbine in a hybrid power generation system are not well understood. Because these systems are new, there are risks that unexpected complications might arise during both steady state operation and transient events. A 250kW experimental fuel cell gas turbine simulation facility has been constructed at the National Energy Technology Laboratory (NETL), U.S. Department of Energy to examine the effects of transient events on the dynamics of these systems. A natural gas burner controlled by a real-time fuel cell model is used in the facility to simulate the thermal output of a solid oxide fuel cell during transient events. Pressure vessels are used for simulating the cathode and post combustion volumes, and are integrated into the system with a modified turbine and the fuel cell simulator. Preliminary results of system characterization are presented and discussed in context of the test scenarios proposed for experimental evaluation of thermal and mechanical transient impact on fuel cell and the gas turbine systems.
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Dherbecourt, Jean-Baptiste, Jean-Michel Melkonian, Antoine Godard, Vincent Lebat, Nicolas Tanguy, Cédric Blanchard, Xavier Watremez, et al. "The NAOMI GAZL multispecies differential absorption lidar: realization and testing on the TADI gas leak simulation facility." In CLEO: Applications and Technology. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/cleo_at.2019.ath3k.1.

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