Thematische Bibliographien / Reactor performance

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Auswahl der wissenschaftlichen Literatur zum Thema „Reactor performance“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 9. Februar 2022

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Zeitschriftenartikel zum Thema "Reactor performance"

Han, Mei, Arto Laari und Tuomas Koiranen. „Hydrodynamics and Mass Transfer Performance of Annulus-Rising Airlift Reactor — The Effect of Reactor Scale“. International Journal of Chemical Engineering and Applications 8, Nr. 1 (Februar 2017): 47–52. http://dx.doi.org/10.18178/ijcea.2017.8.1.629.

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Ni, Xiong-Wei. „Another Critical Look at Three-Phase Catalysis“. Pharmaceutical Fronts 02, Nr. 03 (September 2020): e117-e127. http://dx.doi.org/10.1055/s-0040-1722219.

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AbstractThree-phase catalysis, for example, hydrogenation, is a special branch of chemical reactions involving a hydrogen reactant (gas) and a solvent (liquid) in the presence of a metal porous catalyst (solid) to produce a liquid product. Currently, many reactors are being used for three-phase catalysis from packed bed to slurry vessel; the uniqueness for this type of reaction in countless processes is the requirement of transferring gas into liquid, as yet there is not a unified system of quantifying and comparing reactor performances. This article reviews current methodologies in carrying out such heterogeneous catalysis in different reactors and focuses on how to enhance reactor performance from gas transfer perspectives. This article also suggests that the mass transfer rate over energy dissipation may represent a fairer method for comparison of reactor performance accounting for different types/designs of reactors and catalyst structures as well as operating conditions.

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Borovinskaya, Ekaterina, Valentin Khaydarov, Nicole Strehle, Alexander Musaev und Wladimir Reschetilowski. „Experimental Studies of Ethyl Acetate Saponification Using Different Reactor Systems: The Effect of Volume Flow Rate on Reactor Performance and Pressure Drop“. Applied Sciences 9, Nr. 3 (04.02.2019): 532. http://dx.doi.org/10.3390/app9030532.

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Microreactors intensify chemical processes due to improved flow regimes, mass and heat transfer. In the present study, the effect of the volume flow rate on reactor performance in different reactors (the T-shaped reactor, the interdigital microreactor and the chicane microreactor) was investigated. For this purpose, the saponification reaction in these reactor systems was considered. Experimental results were verified using the obtained kinetic model. The reactor system with a T-shaped reactor shows good performance only at high flow rates, while the experimental setups with the interdigital and the chicane microreactors yield good performance throughout the whole range of volume flow rates. However, microreactors exhibit a higher pressure drop, indicating higher mechanical flow energy consumption than seen using a T-shaped reactor.

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Parlina, Iin, und Lestari Widodo. „APLIKASI REAKTOR HIGH RATE PERFORMANCE PADA PENGOLAHAN LIMBAH CAIR INDUSTRI KECIL TAHU = Application of High Rate Performance Rector for Wastewater Treatment in Tofu Small Scale Industries“. Jurnal Teknologi Lingkungan 14, Nr. 1 (01.12.2016): 7. http://dx.doi.org/10.29122/jtl.v14i1.1432.

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Along with the development of biogas and its utilization, biogas reactors also evolved from conventional reactor types to high rate performance reactors, adapts to the needs of increased efficiency and also the characteristics of organic waste that is difficult if processed using ordinary reactor. However, this type of reactor basically has 3 types, namely fixed bed (packed-bed, anaerobic filters, fixed-film), fluidized bed reactor, and UASB/ Upflow Anaerobic Sludge Blanket reactor. From these high rate performance reactors, fixed bed reactor is the type that is pretty much developed and implemented in Indonesia, especially for treating organic wastewater from small industries, for example tofu, tapioca and slaughterhouses. Implementation of fixed bed reactor for the tofu industry until today has reached as much as 5 units that serve the needs of about 132 households in Banyumas District, Central Java Province. The fixed bed reactor’s performance is quite high if it is evaluated from biogas yield and the efficiency of the organic content in tofu industry’s wastewater. Implementation, dissemination, and replication of this reactor for treatment of other types of organic waste or other areas have the potential to support government programs in GHG mitigation actions, renewable energy sources provision, environmental protection and the development of energy self-sufficient villages.Keywords : biogas reactor - performance high - rate, fixed bed reactors, tofu industryAbstrakSeiring dengan perkembangan biogas beserta pemanfaatannya, reaktor biogas juga berkembang dari jenis reaktor konvensional hingga reaktor berunjuk kerja tinggi (high rate performance) menyesuaikan dengan kebutuhan peningkatan efisiensi dan juga karakteristik limbah organik yang sulit jika diolah dengan menggunakan reaktor biogas biasa. Namun, pada dasarnya reaktor ini memiliki 3 jenis, yaitu reaktor unggun tetap (fixed bed, packed-bed, anaerobic filter, fixed-film), reaktor unggun terfluidisasi (fluidized bed reactor), dan reaktor UASB (Upflow Anaerobic Sludge Blanket). Dari ketiga jenis reaktor berunjuk kerja tinggi tersebut, reaktor jenis unggun tetap adalah jenis yang cukup banyak dikembangkan dan diimplementasikan di Indonesia, terutama untuk mengolah limbah cair organik yang berasal dari industri kecil, misalnya tahu, tapioka dan rumah potong hewan. Implementasi reaktor unggun tetap untuk industri tahu hingga saat ini telah mencapai jumlah 5 unit reaktor yang melayani kebutuhan sekitar 132 Rumah tangga di Kabupaten Banyumas secara berkelanjutan. Kinerja reaktor unggun tetap ini dapat dikatakan cukup tinggi jika dinilai dari perolehan biogas dan efisiensi penurunan kandungan organic dalam limbah cair tahu. Program implementasi, diseminasi, dan replikasi reaktor ini untuk pengolahan jenis limbah organik yang lain atau daerah lain memiliki potensi dalam mendukung program pemerintah dalam aksi mitigasi Gas Rumah Kaca, penyediaan sumber energi terbarukan, perlindungan lingkungan dan pengembangan desa mandiri energi.Kata kunci : biogas, reaktor high-rate-performance, reaktor fixed bed, industri tahu

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Chaedir, Benitta A., Jundika C. Kurnia, Lianjun Chen, Lishuai Jiang und Agus P. Sasmito. „Numerical Investigation of Ventilation Air Methane Catalytic Combustion in Circular Straight and Helical Coil Channels with Twisted Tape Insert in Catalytic-Monolith Reactors“. Catalysts 10, Nr. 7 (17.07.2020): 797. http://dx.doi.org/10.3390/catal10070797.

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In a catalytic combustion of ventilation air methane, one of the key factors determining the reactor performance is the geometry of the reactor. It should be designed to provide maximum energy conversion at minimum catalyst usage and operating cost. This numerical study is conducted to investigate the catalytic combustion of ventilation air methane from a gassy underground mine in a circular straight and helical reactor channel with twisted tape insert. A three-dimensional computational fluid dynamics model which considers conservation of mass, momentum, energy, and species together with chemical reactions, and constitutive relations for species properties and reactions kinetics was developed and validated against the previously published data. The effect of several key factors affecting the catalytic combustion performance such as inlet Reynolds number, twisted tape ratio, and reactor length are evaluated to obtain the optimum reactor parameters. For evaluation purpose, the reaction performance of the studied reactors will be compared to the straight reactor without twisted tape which is set as a baseline. The results give a firm confirmation on the superior performance of the reactors with twisted tape insert as compared to those without. In addition, it is found that helical reactors generate higher net power as compared to their respective straight reactor counterpart despite having lower FoM due to larger catalyst area. Interestingly, the higher twisting ratio offers better performance in terms of net power as well as FoM. Overall, the results highlight the potential of twisted tape insert application in catalytic combustion.

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Khanitchaidecha, W., T. Nakamura, T. Sumino und F. Kazama. „Performance of intermittent aeration reactor on NH4-N removal from groundwater resources“. Water Science and Technology 61, Nr. 12 (01.06.2010): 3061–69. http://dx.doi.org/10.2166/wst.2010.247.

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To study the effect of intermittent aeration period on ammonium–nitrogen (NH4-N) removal from groundwater resources, synthetic groundwater was prepared and three reactors were operated under different conditions – “reactor A” under continuous aeration, “reactor B” under 6 h intermittent aeration, and “reactor C” under 2 h intermittent aeration. To facilitate denitrification simultaneously with nitrification, “acetate” was added as an external carbon source with step-wise increase from 0.5 to 1.5 C/N ratio, where C stands for total carbon content in the system, and N for NH4-N concentration in the synthetic groundwater. Results show that complete NH4-N removal was obtained in “reactor B” and “reactor C” at 1.3 and 1.5 C/N ratio respectively; and partial NH4-N removal in “reactor A”. These results suggest that intermittent aeration at longer interval could enhance the reactor performance on NH4-N removal in terms of efficiency and low external carbon requirement. Because of consumption of internal carbon by the process, less amount of external carbon is required. Further increase in carbon in a form of acetate (1.5 to 2.5 C/N ratios) increases removal rate (represented by reaction rate coefficient (k) of kinetic equation) as well as occurrence of free cells. It suggests that the operating condition at reactor B with 1.3 C/N ratio is more appropriate for long-term operation at a pilot-scale.

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Szűcs, B. Rózsáné, G. L. Szántó, M. Simon und Gy Füleky. „Process performance of dry, batch anaerobic digestion of sewage sludge: methanogenic seed mixtures“. Water Science and Technology 66, Nr. 2 (01.07.2012): 445–50. http://dx.doi.org/10.2166/wst.2012.223.

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A dry, batch anaerobic digestion (DBAD) process was tested on two sewage sludge types with different methanogenic seed fractions under laboratory conditions. The aim was to indicate optimal sludge:seed mixing ratios and analyse process performance based on degradation rate and reactor-specific methane production. The attained results were compared with the performance of a liquid-state, laboratory-scale stirred reactor (SR). A mixing ratio of at least 1:1.25 (sludge:seed) yielded processes free from significant inhibitions. Further seeding increments resulted in slightly better performances, but much lower sludge fractions treated in the reactors. Compared with the SR process, the DBAD reactors produced comparable degradation rates albeit in a significantly longer process and with somewhat lower reactor-specific methane production rates. These findings indicate that the DBAD method may provide a viable alternative to liquid-state processes if sludge drying is already applied and reactor volume requirements are of importance.

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Wang, Boyan, Zhiyuan Wang, Yan Ma und Yijing Liang. „Heat Transfer Enhancement of Indirect Heat Transfer Reactors for Ca(OH)2/CaO Thermochemical Energy Storage System“. Processes 9, Nr. 7 (30.06.2021): 1136. http://dx.doi.org/10.3390/pr9071136.

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The efficiency of a thermochemical energy storage system can be improved by optimizing the structure of the thermochemical energy storage reactor. We proposed two modified structures for indirect heat transfer thermochemical energy storage reactors for a Ca(OH)2/CaO system to improve their heat transfer performance. Our results showed that improving convective heat transfer offered varying effects on heat transfer performance in different reaction processes. For a half-plate pin fin sinks (HPPFHS) reactor and a plate pin fin sinks (PPFHS) reactor, enhancing the convective heat transfer process could improve the heat transfer performance in the dehydration process for a porosity of 0.5, and the time needed to complete reaction was reduced by around 33% compared with plate fin sinks (PFHS) reactor. As for the hydration process, because heat conduction along the bed dominated heat transfer performance, this method had little effect. Furthermore, we found that enhancing heat conduction along the bed and convective heat transfer had different effects on reaction process at different reaction areas. The HPPFHS reactor had a lower pressure drop along the HTF channel and exorbitant velocity of heat transfer fluid (HTF) was unnecessary. Under the condition of the bed porosity of 0.8, due to the lower thermal conductivity of material, both modified reactor structures had little effect on dehydration. However, because the temperature difference between bed and HFT was bigger, the PPFHS reactor could reduce the time of completing the hydration reaction by 20%. Above all, when planning to modify the reactor structure to improve the heat transfer performance to enhance the reaction process, the heat conditions along the bed, convective heat transfer between HTF and the bed and material parameters should be considered totally.

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Rodgers, D. K., C. E. Coleman, M. Griffiths, G. A. Bickel, J. R. Theaker, I. Muir, A. A. Bahurmuz, S. St Lawrence und M. Resta Levi. „In-reactor performance of pressure tubes in CANDU reactors“. Journal of Nuclear Materials 383, Nr. 1-2 (Dezember 2008): 22–27. http://dx.doi.org/10.1016/j.jnucmat.2008.08.037.

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Kotake, Shoji, Yoshihiko Sakamoto und Yutaka Sagayama. „Commercialized fast reactor cycle systems and reactor core performance of the promising fast reactors“. Progress in Nuclear Energy 47, Nr. 1-4 (Januar 2005): 300–313. http://dx.doi.org/10.1016/j.pnucene.2005.05.029.

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Dissertationen zum Thema "Reactor performance"

Ogata, Takanari. „Performance of Metallic Fast Reactor Fuel“. Kyoto University, 2000. http://hdl.handle.net/2433/157094.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである
Kyoto University (京都大学)
0048
新制・論文博士
博士(工学)
乙第10401号
論工博第3515号
新制||工||1183(附属図書館)
UT51-2000-F467
(主査)教授芹澤昭示, 教授東邦夫, 教授小岩昌宏
学位規則第4条第2項該当

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ANDRZEJEWSKI, CLAUDIO S. „Avaliação de alternativas de combustível tipo placa para reatores de pequeno porte“. reponame:Repositório Institucional do IPEN, 2005. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11364.

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Made available in DSpace on 2014-10-09T12:51:07Z (GMT). No. of bitstreams: 0
Made available in DSpace on 2014-10-09T14:00:53Z (GMT). No. of bitstreams: 1 11247.pdf: 6178062 bytes, checksum: e1b3351d67cb6c520245715aabe93507 (MD5)
Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Nachaiyasit, Suyanee. „The effect of process parameters on reactor performance in an anaerobic baffled reactor“. Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.481427.

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Chugunov, Svyatoslav. „High-Performance Simulations for Atmospheric Pressure Plasma Reactor“. Diss., North Dakota State University, 2012. https://hdl.handle.net/10365/26626.

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Plasma-assisted processing and deposition of materials is an important component of modern industrial applications, with plasma reactors sharing 30% to 40% of manufacturing steps in microelectronics production [1]. Development of new flexible electronics increases demands for efficient high-throughput deposition methods and roll-to-roll processing of materials. The current work represents an attempt of practical design and numerical modeling of a plasma enhanced chemical vapor deposition system. The system utilizes plasma at standard pressure and temperature to activate a chemical precursor for protective coatings. A specially designed linear plasma head, that consists of two parallel plates with electrodes placed in the parallel arrangement, is used to resolve clogging issues of currently available commercial plasma heads, as well as to increase the flow-rate of the processed chemicals and to enhance the uniformity of the deposition. A test system is build and discussed in this work. In order to improve operating conditions of the setup and quality of the deposited material, we perform numerical modeling of the plasma system. The theoretical and numerical models presented in this work comprehensively describe plasma generation, recombination, and advection in a channel of arbitrary geometry. Number density of plasma species, their energy content, electric field, and rate parameters are accurately calculated and analyzed in this work. Some interesting engineering outcomes are discussed with a connection to the proposed setup. The numerical model is implemented with the help of high-performance parallel technique and evaluated at a cluster for parallel calculations. A typical performance increase, calculation speed-up, parallel fraction of the code and overall efficiency of the parallel implementation are discussed in details.

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Johnson, Kyle D. „High Performance Fuels for Water-Cooled Reactor Systems“. Doctoral thesis, KTH, Reaktorfysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-201604.

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Investigation of nitride fuels and their properties has, for decades, been propelled on the basis of their desirable high metal densities and high thermal conductivities, both of which oer intrinsic advantages to performance, economy, and safety in fast and light water reactor systems. In this time several key obstacles have been identied as impeding the implementation of these fuels for commercial applications; namely chemical interactions with air and steam, the noted diculty in sintering of the material, and the high costs associated with the enrichment of 15N. The combination of these limitations, historically, led to the well founded conclusion that the most appropriate use of nitride fuels was in the fast reactor fuel cycle, where the cost burdens associated with them is substantially less. Indeed, it is within this context that the vast majority of work on nitrides has been and continues to be done. Nevertheless, following the 2011 Fukushima-Daiichi nuclear accident, a concerted governmental-industrial eort was embarked upon to explore the alternatives of so-called \accident tolerant" and \high performance" fuels. These fuels would, at the same time, improve the response of the fuel-clad system to severe accidents and improve the economy of operation for light water reactor systems. Among the various candidates proposed are uranium nitride, uranium silicide, and a third \uranium nitride-silicide" composite featuring a mixture of the former. In this thesis a method has been established for the synthesis, fabrication, and characterization of high purity uranium nitride, and uranium nitride-silicide composites, prepared by the spark plasma sintering (SPS) technique. A specic result has been to isolate the impact of the processing parameters on the microstructure of representative fuel pellets, essentially permitting any conceivable microstructure of interest to be fabricated. This has enabled the development of a highly reproducible technique for the production of pellets with microstructures tailored towards any desired porosity between 88-99.9%TD, any grain size between 6-24 μm, and, in the case of the uranium nitride-silicide composite, a silicide-coated UN matrix. This has permitted the evaluation of these microstructural characteristics on the performance of these materials, specically with respect to their role as accident tolerant fuels. This has generated results which have tightly coupled nitride performance with pellet microstructure, with important implications for the use of nitrides in water-cooled reactors.
Under artionden har forskning om nitridbranseln och dess egenskaper bedrivits pa grundval av nitridbransletsatravarda egenskaper avseende dess hoga metall tathet och hog varmeledningsformaga. Dessa egenskaper besitter vasentliga fordelar avseende prestanda, ekonomi och sakerhet for metallkylda som lattvatten reaktorer. Genom forskning har aven centrala begr ansningar identierats for implementering av nitridbranslen for kommersiellt bruk. Begransningar avser den kemiska interaktionen med luft och vattenanga, en uppmarksammad svarighet att sintring av materialet samt hoga kostnader forknippade med den nodvandiga anrikningen av 15-N. Kombinationen av dessa begransningar resulterade, tidigare, i en valgrundad slutsats att nitridbranslet mest andamalsenliga anvandningsomrade var i karnbranslecykeln for snabba reaktorer. Detta da kostnaderna forenade med implementeringen av branslet ar avsevart lagre. Inom detta sammanhang har majoriteten av forskning avseende nitrider bedrivits och fortskrider an idag. Dock, efter karnkraftsolyckan i Fukushima-Daiichi 2011, inleddes en samlad industriell och statlig anstrangning for att undersoka alternativ till sa kallade \olyckstoleranta" och \hogpresterande" branslen. Dessa branslen skulle samtidigt forbattra reaktionstiden for bransleinkapsling systemet mot allvarliga olyckor samt forbattra driftsekonomin av lattvattenreaktorer. Foreslagna kandidater ar urannitrid, uransilicid och en tredje \uran nitrid-silicid", komposit bestaende av en blandning av de foregaende. Genom denna avhandling har en metod faststallts for syntes, tillverkning och karaktarisering av uran nitrid av hog renhet samt uran nitrid-silicid kompositer, forberedda med tekniken SPS (Spark Plasma Sintering). Ett specikt resultat har varit att isolera eekten av processparametrar pa mikrostrukturen pa representativa branslekutsar. Detta mojliggor, i princip, framstallningen av alla tankbara mikrostrukturer utav intresse for tillverkning. Vidare har detta mojliggjort utvecklingen av en hogeligen reproducerbar teknik for framstallningen av branslekutsar med mikrostrukturer skraddarsydda for onskad porositet mellan 88 och 99.9 % TD, och kornstorlek mellan 6 och 24 μm. Dartill har en metod for att belagga en matris av uran nitrid-silicid framarbetats. Detta har mojliggjort utvarderingen av dessa mikrostrukturella parametrars paverkan pa materialens prestanda, sarskilt avseende dess roll som olyckstoleranta branslen. Detta har genererat resultat som ar tatt sammanlankat nitridbranslets prestanda till kutsens mikrostruktur, med viktiga konsekvenser for den potentiella anvandningen av nitrider i lattvatten reaktorer.

QC 20170210

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Ortega, Gómez Tino. „Stability analysis of the high performance light water reactor“. Karlsruhe Forschungszentrum Karlsruhe, 2009. http://d-nb.info/994365624/34.

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Grobicki, Ania Maria Wanda. „Hydrodynamic characteristics and performance of the anaerobic baffled reactor“. Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/7406.

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Simmons, Josh C. „Fukushima Meltdown Reactor: Burn Everything“. Bowling Green State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1428239598.

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Peluso, Enzo. „Eggshell catalyst for hydrocarbon synthesis, kinetic modeling and reactor performance“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0033/MQ30754.pdf.

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Liu, Lingling. „Ammonia removal from industrial wastewater, analysis of photochemical reactor performance“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0017/MQ57718.pdf.

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Bücher zum Thema "Reactor performance"

Blake, E. Michael. U.S. power reactor performance, 1992-94. La Grange Park, Ill., USA: American Nuclear Society, 1995.

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Canada, Atomic Energy of. Reactor Coolant Pump Seals: Improving Their Performance. S.l: s.n, 1986.

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Schulenberg, Thomas, und Jörg Starflinger. High performance light water reactor: Design and analyses. Karlsruhe: KIT Scientific Publishing, 2012.

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Neighbour, Gareth B. Securing the safe performance of graphite reactor cores. Cambridge, UK: RSC Pub., 2010.

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Neighbour, Gareth B., Hrsg. Securing the Safe Performance of Graphite Reactor Cores. Cambridge: Royal Society of Chemistry, 2010. http://dx.doi.org/10.1039/9781847559999.

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Neighbour, Gareth B., Hrsg. Modelling and Measuring Reactor Core Graphite Properties and Performance. Cambridge: Royal Society of Chemistry, 2012. http://dx.doi.org/10.1039/9781849735179.

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Canada, Atomic Energy of. Assessment of Beam Tube Performance For the Maple Research Reactor. S.l: s.n, 1985.

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Duffy, Graham James. Modelling of the thermal and mechanical performance of a fast reactor control rod pin. Salford: Universityof Salford, 1990.

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Brodeur, David Lester. A study of US Nuclear Power Boiling Water Reactor, Class IV, operating performance, 1992-1997. Springfield, Va: Available from National Technical Information Service, 1998.

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Natesan, K. Knowledge base report on emergency core cooling sump performance in operating light water reactors. Washington, D.C: United States Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, 2014.

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Buchteile zum Thema "Reactor performance"

Thomas, A. F., M. R. Brown und A. Dolan. „‘A Comprehensive Approach to the Problems of Uncertainty Analysis in the Assessment of Irradiated Materials Performance’“. In Reactor Dosimetry, 983–95. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5378-9_100.

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Thomas, A. F., M. R. Brown und A. Dolan. „A Comprehensive Approach to the Problems of Uncertainty Analysis in the Assessment of Irradiated Materials Performance“. In Reactor Dosimetry, 983–95. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-010-9726-0_48.

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Illanes, A., C. Altamirano und O. Cartagena. „Enzyme Reactor Performance Under Thermal Inactivation“. In Advances in Bioprocess Engineering, 467–72. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-017-0641-4_64.

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Long, Shi Gang, Feng Cao, Liu Heng Sun und Qing Min Meng. „Study on Alumina Ceramics for Dechlorinating Reactor Lining“. In High-Performance Ceramics V, 707–9. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-473-1.707.

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de M. Cuervo-López, F., H. O. Monroy und O. González. „Anaerobic Digestion Modelling and UASB Reactor Performance“. In Environmental Biotechnology, 557–68. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-017-1435-8_49.

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Russell, J. L., W. H. Miller, R. M. Brugger und W. H. Herleth. „Georgia Tech Research Reactor Epithermal Beam“. In Neutron Beam Design, Development, and Performance for Neutron Capture Therapy, 219–27. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5802-2_16.

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Makkawi, Yassir T. „Reactor Design and its Impact on Performance and Products“. In Transformation of Biomass, 61–97. Chichester, UK: John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118693643.ch3.

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Neuman, W. A. „Neutron Beam Studies for a Medical Therapy Reactor“. In Neutron Beam Design, Development, and Performance for Neutron Capture Therapy, 125–39. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5802-2_10.

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Lebedeva, Elena E., Yury V. Naboishchikov, Anatoly I. Tellin und Dimitry K. Ryazanov. „Experiment-Based and Numerical Estimation Analysis of Neutron Field Performance in the In-Core Irradiation Positions and in the Lateral Blanket of the BOR-60 Reactor“. In Reactor Dosimetry: 16th International Symposium, 48–62. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2018. http://dx.doi.org/10.1520/stp160820170071.

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Rand, Brian. „Towards a Structural Basis to the Physical Properties of Irradiated Polycrystalline Nuclear Graphite“. In Modelling and Measuring Reactor Core Graphite Properties and Performance, 2–8. Cambridge: Royal Society of Chemistry, 2012. http://dx.doi.org/10.1039/9781849735179-00002.

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Konferenzberichte zum Thema "Reactor performance"

Lawrence, Leo A., Bruce J. Makenas und Les L. Begg. „Performance of fast reactor irradiated fueled emitters for thermionic reactors“. In Proceedings of the ninth symposium on space nuclear power systems. AIP, 1992. http://dx.doi.org/10.1063/1.41886.

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Kim, Young Min, M. S. Cho, Y. W. Lee und W. J. Lee. „Development of a Fuel Performance Analysis Code COPA“. In Fourth International Topical Meeting on High Temperature Reactor Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/htr2008-58040.

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A fuel performance analysis code for a very high temperature gas-cooled reactor (VHTR) COPA (Coated Particle) is being developed at the Korea Atomic Energy Research Institute (KAERI). The COPA code consists of nine modules: BURN, TEMTR, TEMPEB, TEMBL, MECH, FAIL, FPREL, ABAQ, and MPRO. The BURN determines neutron flux and fluence at a location of a reactor core, and then calculates a fuel burnup, a fission rate per volume and a fission product inventory throughout a fuel particle and a fuel element. The TEMTR, TEMPEB and TEMBL calculate the temperature distributions in a coated fuel particle, a pebble and a fuel block by using a one-dimensional finite difference method, respectively. The MECH performs mechanical calculations on a coated fuel particle by using a finite element method. The FAIL performs probabilistic calculations to estimate the failure probabilities of the coating layers during an experiment or a reactor operation. The FPREL estimates the migrations of gaseous and metallic fission products through a fuel particle and a fuel element by using a one-dimensional finite difference method. The ABAQ performs the analysis of the crack and debonding in a coated fuel particle. The MPRO calculates the material properties of the kernel, low-density pyrocarbon, high-density pyrocarbon, silicon carbide, matrix graphite, and structural graphite. Each module is used to produce input data for other modules or is inserted into other modules. The COPA code is one of the computer codes taking part in the IAEA-CRP-6 benchmarking program. The stresses and failure fractions calculated by the COPA-MECH and COPA-FAIL showed good agreements with the results by the other countries’ codes. In order to establish a good database of the related material properties, KAERI is participating in an international irradiation experiment, is planning its own irradiation and post-irradiation experiments, and will perform ab-initio calculations on the fuel materials.

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Zhang, Yihui, Hai Xie, Licai Yang, Qian Dou und Guangshi Liu. „Smart switching reactor application and performance analysis“. In 2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2018. http://dx.doi.org/10.1109/iciea.2018.8397853.

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Manzanillas, Luis. „Performance of the SoLid reactor neutrino detector“. In European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.364.0127.

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Manzanillas, Luis. „Performance of the SoLid Reactor Neutrino Detector“. In The 39th International Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.340.0426.

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Marotta, Paul J., und Basil N. Antar. „Small Modular Reactor Thermal Performance Improvement With Addition of a High Temperature Gas Reactor Superheater“. In ASME 2014 Small Modular Reactors Symposium. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smr2014-3374.

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Reheating steam from a Small Modular Reactor (SMR) is explored in order to increase efficiency and power output. A thermal source in the form of a High Temperature Gas Reactor (HTGR) is considered. Engineering challenges include proof-of-principle, reactor sizing, evaluation, and feasibility. The proposed thermodynamic process modifications have been evaluated for a range of inlet steam quality conditions. The evaluation of the steam tube dimensions and number of optimal tubes have been calculated utilizing the so-called Log Mean Temperature Difference method. Subsequently, the performance of the steam tubes was further analyzed within a RELAP5 model to investigate two phase boiling flow thermal phenomena. Detailed calculations include a non-uniform axial heat flux distribution based on published results for the tri-structural isotropic fuel system (TRISO). Non-uniform axial heat flux served as the non-uniform heat source boundary condition in the computer model for the High Temperature Gas Reactor. The work shows that the proposed modifications are not only feasible but also show significant improvement for power output in the amount of over 50%, and increase of the power cycle efficiency of over 14%.

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Kumar, Rajneesh, Gurvinder Kaur Saini und Mohammad Jawed. „Impact of Heavy Metal on Reactor Performance and Biomass Morphology of Sequencing Batch Reactors“. In ASCE India Conference 2017. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784482032.032.

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Carter, Donald Layne, und James D. Tatara. „Performance Assessment of ISS Water Processor Assembly Reactor“. In International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2004. http://dx.doi.org/10.4271/2004-01-2451.

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Hu, Chang-Jun, An Wang und Wen Yang. „An overview of high-performance numerical reactor design“. In INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS (ICNAAM 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5043860.

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Chen, Pin-Chuan, Jifeng Chen, Dimitris E. Nikitopoulos, Steven A. Soper und Michael C. Murphy. „Performance of an Electrokinetic Shuttle Polymerase Chain Reactor“. In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15239.

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An alternative polymerase chain reactor (PCR) driven by electrokinetic flow was developed and tested. A single straight microchannel and a double-T intersection were designed for injection of DNA samples and thermal cycling by shuttling between constant temperature zones. Thermal performance of the device was studied using numerical and analytical models to understand the temperature distribution. Devices were made on a polycarbonate substrate by hot embossing with a micromilled brass mold insert. A PID control system, with a tolerance of ± 0.2°C, was used to maintain the temperatures in each zone during experiments. Power consumption in each zone was predicted using thermal simulations. Molecular diffusion of 500 bp DNA was evaluated using two methods, an empirical equation and an analytical model, and the diffusion length after 20 cycles from both models was 100 μm with a 0.97 μm difference. Electroosmotic flow (EOF) was minimized by using dynamic coating and Joule heating was reduced by decreasing the KCl component in the DNA cocktail. Successful amplification of 500 bp DNA fragments at shuttle velocities of 1mm s-1 (620 seconds), 2mm s-1 (310 seconds), and 3mm s-1 (207 seconds) was demonstrated for 20 thermal cycles. The amplification efficiencies were 31%, 28%, and 18%, respectively. Unintentional flows resulting from siphoning phenomenon due to hydrostatic pressure, and Laplace pressure due to surface tension, may be responsible for the reduced amplification performance.

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Berichte der Organisationen zum Thema "Reactor performance"

Nelson, Andrew T. Accident Performance of Light Water Reactor Cladding Materials. Office of Scientific and Technical Information (OSTI), Juli 2012. http://dx.doi.org/10.2172/1047110.

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Miao, Y., E. Hoffman, A. Karahan, A. Tentner und T. Kim. Report on Assessment of Advanced Reactor Fuel Performance. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1772801.

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Hanush, R. G., S. F. Rice, T. B. Hunter und J. D. Aiken. Operation and performance of the Supercritical Fluids Reactor (SFR). Office of Scientific and Technical Information (OSTI), November 1995. http://dx.doi.org/10.2172/135106.

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Stotler, D. P. Density dependence of reactor performance with thermal confinement scalings. Office of Scientific and Technical Information (OSTI), März 1992. http://dx.doi.org/10.2172/10132060.

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Stotler, D. P. Density dependence of reactor performance with thermal confinement scalings. Office of Scientific and Technical Information (OSTI), März 1992. http://dx.doi.org/10.2172/5656290.

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Preckshot, G. G. Reviewing real-time performance of nuclear reactor safety systems. Office of Scientific and Technical Information (OSTI), August 1993. http://dx.doi.org/10.2172/10178197.

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Gamble, Kyle Allan Lawrence, Richard L. Williamson, Daniel Schwen, Yongfeng Zhang, Stephen Rhead Novascone und Pavel G. Medvedev. BISON and MARMOT Development for Modeling Fast Reactor Fuel Performance. Office of Scientific and Technical Information (OSTI), September 2015. http://dx.doi.org/10.2172/1245515.

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Abhold, M. E., S. T. Hsue, H. O. Menlove, G. Walton und S. Holt. The design and performance of the research reactor fuel counter. Office of Scientific and Technical Information (OSTI), September 1996. http://dx.doi.org/10.2172/378867.

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Conklin, J. C. Modeling and performance of the MHTGR (Modular High-Temperature Gas-Cooled Reactor) reactor cavity cooling system. Office of Scientific and Technical Information (OSTI), April 1990. http://dx.doi.org/10.2172/7013277.

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Brad Merrill, Melissa Teague, Robert Youngblood, Larry Ott, Kevin Robb, Michael Todosow, Chris Stanek et al. Advanced Fuels Campaign Light Water Reactor Accident Tolerant Fuel Performance Metrics. Office of Scientific and Technical Information (OSTI), Februar 2014. http://dx.doi.org/10.2172/1129113.

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