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Artigos de revistas sobre o assunto "Thermochemical and kinetic studies"

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Krishnan, K., G. A. Rama Rao, K. D. Singh Mudher, and V. Venugopal. "Thermochemical and kinetic studies on CeTe2O6." Journal of Alloys and Compounds 244, no. 1-2 (1996): 79–84. http://dx.doi.org/10.1016/s0925-8388(96)02435-8.

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Krishnan, K., G. A. Rama Rao, K. D. Singh Mudher, and V. Venugopal. "Thermochemical and kinetic studies on ThTe2O6." Journal of Nuclear Materials 230, no. 1 (1996): 61–66. http://dx.doi.org/10.1016/0022-3115(96)80011-0.

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Lucarini, Marco, Gian Franco Pedulli, Luca Valgimigli, Riccardo Amorati, and Francesco Minisci. "Thermochemical and Kinetic Studies of a Bisphenol Antioxidant." Journal of Organic Chemistry 66, no. 16 (2001): 5456–62. http://dx.doi.org/10.1021/jo015653s.

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Amorati, Riccardo, Marco Lucarini, Veronica Mugnaini, et al. "Hydroxylamines as Oxidation Catalysts: Thermochemical and Kinetic Studies." Journal of Organic Chemistry 68, no. 5 (2003): 1747–54. http://dx.doi.org/10.1021/jo026660z.

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Park, Sunyong, kyeong sik kang, Kwang Cheol Oh, et al. "Development and validation of mass reduction prediction model during torrefaction using biomass chemical composition analysis." Development and validation of mass reduction prediction model during torrefaction using biomass chemical composition analysis 20, no. 5 (2025): e0323940. https://doi.org/10.1371/journal.pone.0323940.

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Thermochemical processes employ heat to transform biomass into energy. In these processes, heat supply and biomass type can affect the products, therefore understanding them is critical. Confirming these changes directly requires time and resources. Several hypotheses have been proposed to explain these changes. So, the purpose of this work was to investigate mass loss during thermochemical reactions utilising available kinetic parameters. This study comprised previously pyrolysed herbal agricultural biomass (soybean pod, corncob), woody agricultural biomass (pepper stem, grape pruning branch)
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Golovanova, O. F., G. V. Sitonina, V. I. Pepekin, B. L. Korsunskii, and F. I. Dubovitskii. "Kinetic and thermochemical studies of N-nitro and N-nitrosomorpholine." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 37, no. 5 (1988): 881–86. http://dx.doi.org/10.1007/bf00957051.

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Fedunik-Hofman, Larissa, Alicia Bayon, and Scott W. Donne. "Kinetics of Solid-Gas Reactions and Their Application to Carbonate Looping Systems." Energies 12, no. 15 (2019): 2981. http://dx.doi.org/10.3390/en12152981.

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Reaction kinetics is an important field of study in chemical engineering to translate laboratory-scale studies to large-scale reactor conditions. The procedures used to determine kinetic parameters (activation energy, pre-exponential factor and the reaction model) include model-fitting, model-free and generalized methods, which have been extensively used in published literature to model solid-gas reactions. A comprehensive review of kinetic analysis methods will be presented using the example of carbonate looping, an important process applied to thermochemical energy storage and carbon capture
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Park, Sunyong, Kyeong Sik Kang, Kwang Cheol Oh, et al. "Development and validation of mass reduction prediction model during torrefaction using biomass chemical composition analysis." PLOS One 20, no. 5 (2025): e0323940. https://doi.org/10.1371/journal.pone.0323940.

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Thermochemical processes employ heat to transform biomass into energy. In these processes, heat supply and biomass type can affect the products, therefore understanding them is critical. Confirming these changes directly requires time and resources. Several hypotheses have been proposed to explain these changes. So, the purpose of this work was to investigate mass loss during thermochemical reactions utilising available kinetic parameters. This study comprised previously pyrolysed herbal agricultural biomass (soybean pod, corncob), woody agricultural biomass (pepper stem, grape pruning branch)
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Gokon, Nobuyuki, Kosuke Hayashi, Hiroki Sawaguri, and Fumiya Ohashi. "Long-Term Thermal Cycling Test and Heat-Charging Kinetics of Fe-Substituted Mn2O3 for Next-Generation Concentrated Solar Power Using Thermochemical Energy Storage at High Temperatures." Energies 15, no. 13 (2022): 4812. http://dx.doi.org/10.3390/en15134812.

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We studied the performance in terms of the long-term cyclic thermal storage and heat-charging kinetics of Fe-substituted manganese oxide for use in thermochemical energy storage at temperatures exceeding 550 °C in a next-generation concentrated solar power system in which a gas stream containing oxygen is used for reversible thermochemical processes. The Fe-substituted Mn2O3 was evaluated from the viewpoint of its microstructural characteristics, thermodynamic phase transitions, and long-term cycling stability. A kinetic analysis of the heat-charging mode was performed at different heating rat
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Zhao, Wei, Xinglian Yang, Jingying Wang, Yongkang Zheng, and Yue Zhou. "Evaluation of Thermodynamic and Chemical Kinetic Models for Hypersonic and High-Temperature Flow Simulation." Applied Sciences 13, no. 17 (2023): 9991. http://dx.doi.org/10.3390/app13179991.

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Significant thermochemical nonequilibrium effects always exist in the flow field around hypersonic vehicle at extreme flight condition. Previous studies have proposed various thermodynamic and chemical kinetic models to describe the thermochemical nonequilibrium processes in hypersonic and high-temperature flow. However, different selections from such models might lead to remarkable variations in computational burden and prediction accuracy, which is still a matter of being unclear. In the present study, different commonly studied models for calculating the thermochemical nonequilibrium are sy
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Teses / dissertações sobre o assunto "Thermochemical and kinetic studies"

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Khan, Mohammad A. "Thermochemical kinetic studies of organic peroxides relevant to the combustion of hydrocarbons." Thesis, University of Aberdeen, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.290241.

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In the combustion of fuels and related organic compounds the initial step consists of a free radical forming process occurring either homogeneously or heterogeneously, such as RH + O<sub>2 → R + HO</sub>_2 (1) The radical R, reacts with oxygen to produce an alkyl or other peroxy radical: R + O_2 ↔ RO<sub>2</sub> (2) One of the controversies involved in the mechanism for the oxidation of hydrocarbons is the route for the unimolecular decomposition of the hydroperoxy alkyl radical (R<sub>-H</sub>OOH). This would be produced as a result of the isomerisation of the alkyl peroxy radical (RO<sub>2</
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Davies, Joanne Wendy. "Studies of gas-phase radical reactions." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329952.

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Stewart, Paul Hendry. "Theoretical and experimental studies of unimolecular reactions relevant to combustion and the atmosphere." Thesis, University of Aberdeen, 1986. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU366734.

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The pyrolysis of methyl nitrite (1 torr) in the presence of nitrogen dioxide (1 torr) was studied at 458K over the pressure range 0-760 torr of carbon tetrafluoride. The only detectable products were methyl nitrate and formaldehyde. The decomposition can be described by the following simple mechanism: CH₃ONO + M → CH₃O + NO + M (1); CH₃O + NO₂ → CH₃ONO₂ (2); CH₃O + NO₂ → HCHO + HONO (3). Step (1) was found to be stongly pressure dependent with a P½ value of 760 torr. The rate constant for decomposition k₁ was found from RRKM modelling to be given by the following expression: log (k₁/s⁻¹) = 15.
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Fiagome, Elizabeth Delanyo. "Thermochemical studies of some iodates." Thesis, Teesside University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387140.

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Chatre, Lucas. "Étude et modélisation des phénomènes de transport et réactionnels dans un four à vis." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASB034.

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Les convoyeurs à vis sont très largement utilisés dans l'industrie chimique. Du fait de leur capacité de mélange et de transport, ils sont mis en œuvre pour différentes applications (convoyage, séchage, pyrolyse, etc.). Cette technologie se voit ainsi utilisée dans le retraitement de matière nucléaire, notamment pour stabiliser des oxalates de plutonium en oxyde. De nombreuses études ont été menées à l'échelle du laboratoire afin d'établir précisément les mécanismes réactionnels par analyse thermogravimétrique (ATG) et les propriétés physico-chimiques des espèces mises en jeu. Il s'agit de réa
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Aubry, Christiane. "Thermochemical and mass spectrometric studies of gas phase ions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq26103.pdf.

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Huynh, Kathy Tang. "Gas-Phase Thermochemical Properties of Proline-Containing Dipeptides and Fluorinated Alcohols using the Extended Kinetic Method." W&M ScholarWorks, 2016. https://scholarworks.wm.edu/etd/1539626981.

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Dasopoulos, P. "Thermochemical studies of siliceous zeolites for vapour phase adsorption processes." Thesis, University of Surrey, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374206.

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Hall, I. W. "Kinetic studies of atmospheric reactions." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236263.

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Hindmarsh, Kathryn. "Kinetic studies of platinum complexes." Thesis, University of Canterbury. Chemistry, 1998. http://hdl.handle.net/10092/8647.

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Since the chance discovery, in 1967, of the anti-tumour activity of cisplatin, cis-dichlorodiammineplatinum(II), research has focussed on studying the reactions of this and other related complexes in an effort to elucidate the nature of the biological activity. This thesis presents a study of the aqueous solution chemistry of some platinum(II) and platinum(IV) complexes in order to extend what is known about the simple chemistry of this biologically important class of compounds. The chloride ion anation of diaqua (cis-[Pt(OH₂)₂(N)₂]²⁺) complexes is investigated as is the bromide ion anation o
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Livros sobre o assunto "Thermochemical and kinetic studies"

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F, Burgess D. R., and National Institute of Standards and Technology (U.S.), eds. Thermochemical and chemical kinetic data for fluorinated hydrocarbons. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1995.

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F, Burgess D. R., and National Institute of Standards and Technology (U.S.), eds. Thermochemical and chemical kinetic data for fluorinated hydrocarbons. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1995.

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F, Burgess D. R., and National Institute of Standards and Technology (U.S.), eds. Thermochemical and chemical kinetic data for fluorinated hydrocarbons. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1995.

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Wojciechowski, Bohdan W. Experimental methods in kinetic studies. M.J. Wojciechowski, 2001.

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Frost, Michael James. Kinetic studies of radical association reactions. University of Birmingham, 1989.

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Gharibi, Hussein. Electrochemical and kinetic studies in surfactant solutions. University of Salford, 1990.

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Mandani, Faisal Mohammad. Kinetic and deactivation studies during catalytic dehydrogenation. University of Salford, 1991.

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Lukas, Timothy Michael. Kinetic and equilibrium studies of some surfactant systems. University of Salford, 1991.

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Stocker, David William. Kinetic and mechanistic studies of elementary atmospheric reactions. University of Birmingham, 1985.

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Darwen, Stuart. Synthetic and kinetic studies on some aryl azides. University of Salford, 1989.

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Capítulos de livros sobre o assunto "Thermochemical and kinetic studies"

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Sarkar, Aparna, Sudip De Sarkar, Michael Langanki, and Ranjana Chowdhury. "Studies on Pyrolysis Kinetic of Newspaper Wastes in a Packed Bed Reactor: Experiments, Modeling, and Product Characterization." In Thermochemical Waste Treatment. Apple Academic Press, 2017. http://dx.doi.org/10.1201/b19983-15.

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Markussen, Jan. "Kinetic studies." In Human Insulin by Tryptic Transpeptidations of Porcine Insulin and Biosynthetic Precursors. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3187-9_6.

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Sun, Jing, Wenlong Wang, Zhen Liu, Qingluan Ma, Chao Zhao, and Chunyuan Ma. "Kinetic Study of the Pyrolysis of Waste Printed Circuit Board Subject to Conventional and Microwave Heating." In Thermochemical Waste Treatment. Apple Academic Press, 2017. http://dx.doi.org/10.1201/b19983-14.

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Scheer, Milton D. "A Kinetic Isotope Effect in the Thermal Dehydration of Cellobiose." In Fundamentals of Thermochemical Biomass Conversion. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4932-4_5.

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Landau, Ralph N., Cristian Libanati, and Michael T. Klein. "Monte Carlo Simulation of Lignin Pyrolysis: Sensitivity to Kinetic Parameters." In Research in Thermochemical Biomass Conversion. Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2737-7_34.

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Maschio, Giuseppe, Aldo Lucchesi, and Charalambos Koufopanos. "Study of Kinetic and Transfer Phenomena in the Pyrolysis of Biomass Particles." In Advances in Thermochemical Biomass Conversion. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1336-6_58.

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Zachariah, M. R., P. R. Westmoreland, D. R. F. Burgess, Wing Tsang, and C. F. Melius. "Theoretical Prediction of Thermochemical and Kinetic Properties of Fluorocarbons." In ACS Symposium Series. American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1995-0611.ch027.

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Pavlath, Attila E., and Kay S. Gregorski. "Thermoanalytical Studies of Carbohydrate Pyrolysis." In Fundamentals of Thermochemical Biomass Conversion. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4932-4_25.

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Tang, Guangwen. "Kinetic Studies with Carotenoids." In Carotenoids and Human Health. Humana Press, 2012. http://dx.doi.org/10.1007/978-1-62703-203-2_5.

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Magnaterra, M., J. R. Fusco, J. Ochoa, and A. L. Cukierman. "Kinetic Study of the Reaction of Different Hardwood Sawdust Chars with Oxygen. Chemical and Structural Characterization of the Samples." In Advances in Thermochemical Biomass Conversion. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1336-6_10.

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Trabalhos de conferências sobre o assunto "Thermochemical and kinetic studies"

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Yentumi, Richard, Constantin Jurischka, Bogdan Dorneanu, and Harvey Arellano-Garcia. "Optimal Design and Analysis of Thermochemical Storage and Release of Hydrogen via the Reversible Redox of Iron Oxide/Iron." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.121492.

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In this contribution, a thermodynamic model-based approach for the optimal design of a solid-state hydrogen storage and release system utilizing the reversible iron oxide/iron thermochemical redox mechanism is presented. Existing storage processes using this mechanism face significant limitations, including low hydrogen conversion, high energy input requirements, limited storage density, and slow charging/discharging kinetics. To address these challenges, a custom thermodynamic model using NIST thermochemistry data is developed, enabling an in-depth analysis of redox reaction equilibria under
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Prian, L., and A. Barkatt. "Chemical, Thermochemical, and Mechanical Studies of FRP Degradation in Corrosive Environments." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98455.

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Abstract Extensive measurements on E-glass/vinylester rods exposed to air, water, and ammonia solutions at temperatures between 23°C and 80°C for 7 to 224 days showed that integration of the chemical, thermochemical, and mechanical data is necessary for developing useful models of FRP degradation. For instance, fiber dissolution is a major mechanism in basic environments while resin hydrolysis is most pronounced in acidic environments1,2. Dramatic increases in degradation rates may be observed in some cases of environmental exposure after a certain induction period, even at relatively low temp
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Sun, L., Z. Dai, and M. Xu. "Studies on kinetic characteristics of thermal emission-driven atmospheric microarc discharge." In 2024 IEEE International Conference on Plasma Science (ICOPS). IEEE, 2024. http://dx.doi.org/10.1109/icops58192.2024.10626517.

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Taylor, D. F., and C. C. Foust. "Kinetic Studies on Segmented Tubular Stainless - Steel Crevices at High Temperature." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87090.

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Abstract Currents flowing between the electrically separated equipotential sections of segmented tubular crevices showed complex behavior at 288°C and during cooling. Dependence of these currents on electrolyte, concentration of dissolved oxygen, and accessible surface area external to the occluded region indicated cathodic rate control, and demonstrated an important contribution from cathodic reaction partitioning among the segments. The detection of molecular hydrogen after its formation by aqueous corrosion and passage through the walls of stainless steel tubing supported indirect kinetic e
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Keiser, James R., Michael P. Brady, Samuel A. Lewis, et al. "Materials Issues in Thermochemical Production, Processing and Utilization of Bio-Oil." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07867.

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Abstract Biomass-derived oils are a renewable resource which offer potential for replacing a portion of fossil derived fuels currently in use. However, bio-oils are composed of a large number of organic compounds, many of which contain oxygen. Some of these oxygenates have been shown to degrade metallic and nonmetallic materials that are candidates for containing and sealing bio-oils in various stages of production, processing and utilization. A wide range of corrosion studies has been used to assess the effect of biomass-derived oils on materials. Selected bio-oils have been chemically charac
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Durocher, Antoine, Gilles Bourque, and Jeffrey M. Bergthorson. "Quantifying the Effect of Kinetic Uncertainties on NO Predictions at Engine-Relevant Pressures in Premixed Methane-Air Flames." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90486.

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Abstract Accurate and robust thermochemical models are required to identify future low-NOx technologies that can meet the increasingly stringent emissions regulations in the gas turbine industry. These mechanisms are generally optimized and validated for specific ranges of operating conditions, which result in an abundance of models offering accurate nominal solutions over different parameter ranges. At atmospheric conditions, and for methane combustion, a relatively good agreement between models and experiments is currently observed. At engine-relevant pressures, however, a large variability
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Gomez, Judith C., Robert Tirawat, and Edgar E. Vidal. "Hot Corrosion Studies Using Electrochemical Techniques of Alloys in a Chloride Molten Salt (NaCl-LiCl) at 650°C." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6739.

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Next-generation solar power conversion systems in concentrating solar power (CSP) applications require high-temperature advanced fluids in the range of 600° to 900°C. Molten salts are good candidates for CSP applications, but they are generally very corrosive to common alloys used in vessels, heat exchangers, and piping at these elevated temperatures. The majority of the molten-salt corrosion evaluations for sulfates with chlorides and some vanadium compounds have been performed for waste incinerators, gas turbine engines, and electric power generation (steam-generating equipment) applications
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Al-Raqom, F., J. F. Klausner, D. Hahn, J. Petrasch, and S. A. Sherif. "High Temperature Fluidized Bed Reactor Kinetics With Sintering Inhibitors for Iron Oxidation." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62808.

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High purity hydrogen is produced through a thermochemical water splitting process that utilizes iron reduction-oxidation (redox) reactions. An iron powder bed is fluidized to improve heat and mass transfer thus improving the reaction kinetics. Inert additives which act as sintering inhibitors, such as silica (SiO2) and zirconia (ZrO2), are added to the iron powder, and their effectiveness in inhibiting sintering in the oxidation step is evaluated. The influence of particle size, composition, mass fraction and bed temperature on reaction kinetics is investigated. Incorporation of zirconia in th
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Jella, Sandeep, Gilles Bourque, Pierre Gauthier, et al. "Analysis of Autoignition Chemistry in Aeroderivative Premixers at Engine Conditions." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15697.

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Abstract The minimization of autoignition risk is critical to the design of premixers of high power aeroderivative gas turbines as an increased use of highly reactive future fuels (for example, hydrogen or higher hydrocarbons) is anticipated. Safety factors based on ignition delays of homogeneous mixtures, are generally used to guide the choice of a residence time for a given premixer. However, autoignition chemistry at aeroderivative conditions is fast (0.5–2 milliseconds) and can be initiated within typical premixer residence times. The analysis of what takes place in this short period neces
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Losev, Staly, Vladimir Makarov, and Vladimir Nikolsky. "Thermochemical nonequilibrium kinetic models in strong shock waves on air." In 6th Joint Thermophysics and Heat Transfer Conference. American Institute of Aeronautics and Astronautics, 1994. http://dx.doi.org/10.2514/6.1994-1990.

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Relatórios de organizações sobre o assunto "Thermochemical and kinetic studies"

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Dodoo, J. N. D. Structure and thermochemical kinetic studies of coal pyrolysis. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5602422.

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Dodoo, J. N. D. Structure and thermochemical kinetic studies of coal pyrolysis. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/6224612.

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Dodoo, J. N. D., and M. Hetzberg. Structure and thermochemical kinetic studies of coal pyrolysis. Final technical report. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/49117.

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Dodoo, J. N. D. Structure and thermochemical kinetic studies of coal pyrolysis. Quarterly technical progress report, October 1--December 31, 1991. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/10138920.

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Yarbrough, W. A. Thermochemical and Kinetic Considerations in Diamond Growth. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada247866.

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Burgess, Donald R. F. Thermochemical and chemical kinetic data for fluorinated hydrocarbons. National Bureau of Standards, 1995. http://dx.doi.org/10.6028/nist.tn.1412.

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Barnes, M. J. Cesium Precipitation Kinetic Studies. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/4874.

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Tang, W. M. Kinetic studies of anomalous transport. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6329720.

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Keto, J. W. Kinetic studies following state-selective laser excitation. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5747549.

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Lempert, Walter R., and Igor V. Adamovich. Kinetic Studies of Nonequilibrium Plasma-Assisted Combustion. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada524301.

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