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1.602 Aktuelle Fachpublikationen zum Thema temperature

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Experimental determination of the discharge flow coefficient at a doorway for fire induced flow in natural and mixed convection

16.10.2014 | A. Koched, H. Pretrel, O. Vauquelin, L. Audouin, Fire and Materials, 2014

SUMMARY The study is an experimental investigation of the discharge flow coefficient at a doorway‐type opening in the case of a fire in an enclosure open to atmosphere. Natural and mixed convection flows are considered with the use of mechanical ventilation. The discharge coefficient is ...

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Comparison of different kinetic models for the chlorohydrin process using real data from an industrial tubular reactor

15.10.2014 | Ivan Petric, Amel Husanović, The Canadian Journal of Chemical Engineering, 2014

Abstract The main objective of this study was to investigate how different kinetic models for the chlorohydrin process can influence the simulation results. In order to accomplish this objective, a simplified reactor model was developed and applied on the kinetic models. The simulation ...

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Determination of the Critical Properties of C6–C10 n-Alkanes and Their Binary Systems Using a Flow Apparatus

13.10.2014 | Yang Liu; Ying Zhang; Mao-gang He; Nan Xin, Journal of Chemical & Engineering Data, 2014

A flow apparatus was established to measure the critical properties of pure components and mixtures. The critical points are visually determined by observing the critical opalescence. The measurement can be carried out up to 10 MPa for pressure and 773 K for temperature. Critical temperatures ...

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Design Options for Avoiding Hydrates in Deep Offshore Production

10.10.2014 | Carlos A. B. R. Cardoso; Marcelo A. L. Gonçalves; Ricardo M. T. Camargo, Journal of Chemical & Engineering Data, 2014

Hydrate blockage in subsea systems is responsible for a portion of lost profits in several deepwater oil fields. This problem tends to worsen in the fields recently discovered in Brazilian Pre-Salt layer due to greater water depth, higher pressure, lower temperature, and oil more prone to ...

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Air‐promoted adsorptive desulfurization of diesel fuel over Ti‐Ce mixed metal oxides

07.10.2014 | Jing Xiao, Siddarth Sitamraju, Yongsheng Chen, Shingo Watanabe, Mamoru Fujii, Michael Janik, Chunshan Song, AIChE Journal, 2014

Abstract This work investigates air‐promoted adsorptive desulfurization (ADS) of commercial diesel fuel over a Ti‐Ce mixed oxide adsorbent in a flow system. The fresh/spent adsorbents were characterized using X‐ray absorption near edge structure spectroscopy. Results show that sulfoxide ...

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Analysis of heat transfer in a vessel with helical pipe coil and multistage impeller

07.10.2014 | Martin Dostál, Marcela Věříšová, Karel Petera, Tomáš Jirout, Ivan Fořt, The Canadian Journal of Chemical Engineering, 2014

Abstract Results of heat transfer coefficient measurements in an agitated vessel heated or cooled by the liquid media flowing in a helical pipe coil are presented in this paper. The multistage impeller made of two pitched six‐blade impellers and adjustable clearance was used in a vessel with ...

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Scaling description of the yielding transition in soft amorphous solids at zero temperature [Physics]

07.10.2014 | Jie Lin; Edan Lerner; Alberto Rosso; Matthieu Wyart, Proceedings of the National Academy of Sciences current issue, 2014

Yield stress materials flow if a sufficiently large shear stress is applied. Although such materials are ubiquitous and relevant for industry, there is no accepted microscopic description of how they yield, even in the simplest situations in which temperature is negligible and in which flow ...

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Air Filtration in the Free Molecular Flow Regime: A Review of High‐Efficiency Particulate Air Filters Based on Carbon Nanotubes

06.10.2014 | Peng Li, Chunya Wang, Yingying Zhang, Fei Wei, Small, 2014

Air filtration in the free molecular flow (FMF) regime is important and challenging because a higher filtration efficiency and lower pressure drop are obtained when the fiber diameter is smaller than the gas mean free path in the FMF regime. In previous studies, FMF conditions have been obtained ...

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Effect of blend ratio and elongation flow on the morphology and properties of epoxy resin‐poly(trimethylene terephthalate) blends

30.09.2014 | C. Sarath Chandran, Rene Muller, M. Bouquey, C. Serra, S. Thomas, Polymer Engineering and Science, 2014

The effect of processing conditions on the morphology of polymer blends is a topic of tremendous practical interest especially for thermoset–thermoplastic blends. The effect of blend ratio and the nature of the flow field (shear flow vs. elongation flow) on the morphology is followed here using ...

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Chemical-Looping Combustion with Fuel Oil in a 10 kW Pilot Plant

08.09.2014 | Patrick Moldenhauer; Magnus Rydén; Tobias Mattisson; Ali Hoteit; Aqil Jamal; Anders Lyngfelt, Energy & Fuels, 2014

A fuel reactor with a fuel-injection system for liquid fuels was designed and built for a chemical-looping reactor system with the nominal fuel input of 10 kWth. The gas velocities in the riser section and at the gas-distribution nozzles of this unit are comparable to those of industrial ...

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