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Technical Report Gladden, Joseph R. This NEUP-IRP assembled a team from diverse institutions and a diverse set of expertise to examine the problem of assessing the structural health of dry nuclear fuel storage casks, specifically the TN design. With no physical access designed into these storage casks and the high cost and risk associated with opening casks for direct inspection, the technical difficulty of structural assessment of the basket structure and fuel assemblies is high. In response to this challenge, this IRP brought together experts in both traditional and novel NDE methodologies: active acoustics University of Mississippi , emissions tomography University of Florida , muon tomography Oregon more » State University , and passive-active ultrasonics University of South Carolina. Further, our industry partners in the Electric Power Research Institute EPRI and AREVA provided invaluable insight into technical design details for the cask, practical knowledge of operating parameters at a storage facility, and key relationships that enabled activities unforeseen at the time of the proposed work but were critical in guiding the path of the research. The team decided early in the project that we had a collective goal of laying the technical ground work for practical solutions that could be implemented in the field with reasonable cost, time, and reliability. Both acoustics teams were given access for testing concepts in the first year of the project. This ended up providing critical guidance in the design of subsequent laboratory experiments. Hychem ExperimentsDownload MS PowerPoint Slide A single-pulse shock tube study of the pyrolysis of two different concentrations of Chinese RP-3 jet fuel at 5 bar in the temperature range of — Hychem Experiments has been performed in this work. Major intermediates are obtained and quantified using gas chromatography analysis.
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A flame-ionization detector and a thermal conductivity detector are used for species identification and quantification. Ethylene is the most abundant product in the pyrolysis process.
Other important Experments such as methane, ethane, propyne, acetylene, butene, and Hychem Experiments are also identified and quantified. Kinetic modeling is performed using several detailed, semidetailed, and lumped mechanisms. It is found that the predictions for Hychem Experiments major species such as ethylene, propene, and methane are acceptable. However, current kinetic mechanisms still need refinement for some important species. Different kinetic mechanisms exhibit very different performance in the prediction of certain species during the pyrolysis process.
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The rate of production ROP is carried out to compare the differences among these mechanisms and to identify major reaction pathways to the formation and consumption of the important species, and the results indicate that further studies on the thermal decomposition of 1,3-butadiene are needed to optimize kinetic models. The experimental data are expected to contribute to a http://pinsoftek.com/wp-content/custom/life-in-hell/james-and-ruth-character-analysis.php for the validation of mechanisms under pyrolytic conditions for RP-3 jet fuel and should also be valuable to a better understanding of the combustion behavior of RP-3 jet fuel.
Introduction Jump To Jet fuel is widely used in current aeroengines for propulsion. Hychem Experiments achieve high combustion efficiency and low pollution emission, a better understanding of the combustion chemistry of jet Hychem Experiments is of significant importance toward the development of advanced combustors in aeroengines.
In particular, the development of a high fidelity chemical kinetic mechanism requires a wide range of kinetic targets from experiments for mechanism validation, such as ignition delay time, laminar flame speed, and species profiles. The different compositions in jet fuels certainty affect the combustion properties. Detailed chemical kinetic mechanisms for Hychem Experiments fuels were also developed and validated by the traditional fuel surrogate approach, which employs Hychem Experiments representative hydrocarbon compounds and the corresponding detailed kinetic mechanisms to mimic the physical and combustion properties of real fuels.]
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