Gotowe bibliografie tematyczne / Plug Flow Modelling

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Gotowa bibliografia na temat „Plug Flow Modelling”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Plug Flow Modelling"

Aguguo, Johnbosco, and Matthew Clarke. "On the Necessity of Including the Dissociation Kinetics When Modelling Gas Hydrate Pipeline Plug Dissociation." Energies 17, no. 12 (2024): 3036. http://dx.doi.org/10.3390/en17123036.

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Gas hydrate plugs in petroleum fluid pipelines are a major flow assurance problem and thus, it is important for industry to have reliable mathematical models for estimating the time required to dissociate a hydrate pipeline plug. The existing mathematical models for modelling hydrate plug dissociation treat the problem as a pure heat transfer problem. However, an early study by Jamaluddin et al. speculated that the kinetics of gas hydrate dissociation could become the rate-limiting factor under certain operating conditions. In this short communication, a rigorous 2D model couples the equations

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Juanico, Marcelo. "Should Waste Stabilization Ponds be Designed for Perfect-Mixing or Plug-Flow?" Water Science and Technology 23, no. 7-9 (1991): 1495–502. http://dx.doi.org/10.2166/wst.1991.0602.

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The effect of the hydraulic flow pattern on the performance of Waste Stabilization Ponds is analyzed by modelling. The analysis is made on two parameters with different removal constants (Bacteria and BOD) and for the cases of steady hydraulic loading and when hydraulic loading changes on weekends. Plug-flow ponds perform much better than perfect mixed ones for removal of parameters with high removal constants such as bacteria. Plug-flow and perfect mixed ponds perform very similarly when the removal constant is low as for BOD. Changes in the hydraulic loading regime due to weekend effect do n

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Ivanov, E. A., A. S. Klyuyev, A. A. Zharkovskii, and I. O. Borshchev. "Numerical Simulation of Multiphase Flow Structures in Openfoam Software Package." E3S Web of Conferences 320 (2021): 04016. http://dx.doi.org/10.1051/e3sconf/202132004016.

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Numerical simulation of various structures of multiphase flow in the pipe was performed using the OpenFOAM software package. A visual comparison of multiphase flow design structures for separated stratified-wave, plug and annular flow modes with experimental data is presented. For multiphase flow modelling the solver compressibleInterFoam was used. From the results of numerical modelling, it follows that the OpenFOAM software package allows correct prediction of multiphase flow modes in the pipe depending on Reynolds numbers for gas and liquid phases of the flow.

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Wodołażski, Artur, and Adam Smoliński. "Bio-Hydrogen Production in Packed Bed Continuous Plug Flow Reactor—CFD-Multiphase Modelling." Processes 10, no. 10 (2022): 1907. http://dx.doi.org/10.3390/pr10101907.

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This research study investigates the modelling and simulation of biomass anaerobic dark fermentation in bio-hydrogen production in a continuous plug flow reactor. A CFD multiphase full transient model in long-term horizons was adopted to model dark fermentation biohydrogen production in continuous mode. Both the continuous discharge of biomass, which prevents the accumulation of solid parts, and the recirculation of the liquid phase ensure constant access to the nutrient solution. The effect of the hydraulic retention time (HRT), pH and the feed rate on the bio-hydrogen yield and production ra

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Johannsen, Ib, Björn Kilsgaard, Viktor Milkevych, and Dale Moore. "Design, Modelling, and Experimental Validation of a Scalable Continuous-Flow Hydrothermal Liquefaction Pilot Plant." Processes 9, no. 2 (2021): 234. http://dx.doi.org/10.3390/pr9020234.

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In this study, the design and practical implementation of a novel, scalable plug-flow pilot plant for hydrothermal liquefaction of organic feedstock is presented. The overall discussion comprises the system’s design, process modelling, and simulation, as well as results for an experimental validation of the proposed design with a focus on fluid dynamics and heat transfer. The design criteria take into account the scalability of the plug-flow processing system, optimized non-isothermal flow conditions of highly viscous liquids in a tubular system at harsh process conditions, specifically high p

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Ramandi, Hamed Lamei, Peyman Mostaghimi, Ryan T. Armstrong, et al. "Pore scale imaging and modelling of coal properties." APPEA Journal 55, no. 2 (2015): 468. http://dx.doi.org/10.1071/aj14103.

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A key parameter in determining the productivity and commercial success of coal seam gas wells is the permeability of individual seams. Laboratory testing of core plugs is commonly used as an indicator of potential seam permeability. The highly heterogeneous and stress-dependent nature of coal makes laboratory measurements difficult to perform and the results difficult to interpret. Consequently, permeability in coal is poorly understood. The permeability of coal at the core scale depends on the geometry, topology, connectivity, mineralisation and spatial distribution of the cleat system, and a

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Yeung, Hoi. "Modelling of service reservoirs." Journal of Hydroinformatics 3, no. 3 (2001): 165–72. http://dx.doi.org/10.2166/hydro.2001.0016.

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Service reservoirs were built to provide the dual function of balancing supply with demand and provision of adequate head to maintain pressure throughout the distribution network. Changing demographics in the UK and reducing leakage have led to significant increases in water age and hence increased risk of poor water quality. Computational fluid mechanics has been used to study the behaviour of a range of service reservoirs with a rectangular plan form. Detailed analysis of flow distribution and water age suggests that tanks with horizontal inlets are better mixed when compared with vertical t

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Dócs, Roland, and Krisztián Mátyás Baracza. "A new method of pressure drop modelling in sandstone rocks." Multidiszciplináris tudományok 12, no. 3 (2022): 264–73. http://dx.doi.org/10.35925/j.multi.2022.3.24.

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Production capacity of any hydrocarbon reservoir is the most important question that needs to be answered. This depends on both the obtainable drawdown between the well and reservoir and the petrophysical properties (pore size distribution, wettability properties, saturations etc.) of the porous rock material. Permeability, introduced by Darcy is the parameter describing restrictions present during fluid flow in porous media. Although this method is the one currently accepted and implemented in the industry it has a major flaw because it considers flow in the geometric (total) rather than the

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BULLOUGH, W. A., J. R. KINSELLA, D. J. PEEL, and U. S. URANG. "COMPUTATIONAL FLUID DYNAMICS MODELLING OF ELECTRO-STRUCTURED FLOWS." International Journal of Modern Physics B 15, no. 06n07 (2001): 731–44. http://dx.doi.org/10.1142/s0217979201005210.

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The use of computational fluid dynamics (CFD) software for modelling the flow of electro-structured fluids is introduced. A non-Newtonian fluids package written specifically to model Bingham plastics is validated for several flow rates between stationary parallel plates for varying yield stresses, plate separations and lengths. The computing procedure is rationalised in terms of grid fitting of the 'plug' edge. The programme is modified to include an analytical expression which relates delectro-rheological fluid parameters. This approach is then used to predict valve flow rates from small samp

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Vanrolleghem, P., and F. Coen. "Optimal design of in-sensor-experiments for on-line modelling of nitrogen removal processes." Water Science and Technology 31, no. 2 (1995): 149–60. http://dx.doi.org/10.2166/wst.1995.0091.

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In-Sensor-Experiments are proposed as a means of providing highly informative data concerning the bioprocesses occurring in N-removal systems. It is highlighted that the changing nature of both wastewater and activated sludge enforces the continuous adjustment of the proposed In-Sensor-Experiments to maintain the quality of the sensor's outputs. Central to the automated design of the experiments performed in these adaptive sensors is a mathematical representation of the processes occurring in the device. This model is continuously updated on the basis of previously acquired data. It is illustr

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Rozprawy doktorskie na temat "Plug Flow Modelling"

Hedkvist, Måns. "Expansion av Fjärrvärmeproduktion ur ett Ekonomiskt Perspektiv : En Numeriskt Modellerad Fallstudie." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-183869.

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Fjärrvärme i dagens Sverige är ett väletablerat sätt att leverera värme för både industriell och privat användning. Med nästa generations fjärrvärmesystem vid horisonten kan förändringar av existerande fjärrvärmenät komma att bli vanligt förekommande. Trots att det inte är fullt aktuellt med den typen av renoveringar ännu så måste fjärrvärmenät ibland byggas ut för att hantera nya situationer som kan uppstå. För att få en god uppskattning om vad de nya situationerna kommer kräva, och potentiellt kosta, så är simuleringsmodeller ett användbart verktyg. Den här studien har granskat en kommande ö

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Gupta, Aashish Kumar. "Analysis of the Flow of Granular Materials through a Screw Conveyor." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/4478.

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Screw conveyors are widely employed in industry for the bulk transport of particulate materials. Several studies have attempted to correlate the discharge rate with the rotation speed of the screw via experiments and particle dynamics simulations. However, a detailed mechanical model that would assist in optimal design of screw conveyors, has not been attempted. In this study, we first construct a simple model that assumes the entire granular medium to move as a rigid body sliding along the surfaces of the screw and barrel. By enforcing the balances of linear and angular momentum to a suitabl

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Kelly, Liam. "Probabilistic modelling of plug-in hybrid electric vehicle impacts on distribution networks in British Columbia." Thesis, 2009. http://hdl.handle.net/1828/1702.

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Plug-in hybrid electric vehicles (PHEVs) represent a promising future direction for the personal transportation sector in terms of decreasing the reliance on fossil fuels while simultaneously decreasing emissions. Energy used for driving is fully or partially shifted to electricity leading to lower emission rates, especially in a low carbon intensive generation mixture such as that of British Columbia’s. Despite the benefits of PHEVs for vehicle owners, care will need to be taken when integrating PHEVs into existing electrical grids. For example, there is a natural coincidence between peak ele

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Książki na temat "Plug Flow Modelling"

Ramsay, J. An investigation into the efficacy of the modelling of chemical reaction engineering systems in plug flow tubular reactorsby the use of reaction extents as compared with the conventional method based on species concentrations. School of Control Engineering, 1988.

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EURASAP International Workshop on Wind and Water Tunnel Modelling of Atmospheric Flow and Dispersion (6th 1993 Aso, Japan). 6th EURASAP International Workshop on Wind and Water Tunnel Modelling of Atmospheric Flow and Dispersion: Aso, Japan, 25-27 August 1993, plus regular papers. Pergamon, 1996.

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Części książek na temat "Plug Flow Modelling"

Larrarte, Frédérique, Mathieu Lepot, Francois H. L. R. Clemens-Meyer, et al. "Water level and discharge measurements." In Metrology in Urban Drainage and Stormwater Management: Plug and Pray. IWA Publishing, 2021. http://dx.doi.org/10.2166/9781789060119_0035.

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Abstract The knowledge of water levels and discharges in urban drainage and stormwater management (UDSM) systems is of key importance to understand their functioning and processes, to evaluate their performance, and to provide data for modelling. In this chapter, devoted mainly to underground combined and separate sewer pipe systems, various methods and technologies are described and discussed. After an introduction to important aspects to deal with when measuring discharges in sewer systems, the following parts are presented successively: (i) measurement of water level with rulers, and pressu

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Gogulancea, Valentina, and Vasile Lavric. "Plug Flow vs. Discontinuous Modelling Approaches for Plasma – Based Depollution of Exhausts." In Computer Aided Chemical Engineering. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-444-63456-6.50079-x.

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A. Kamoona, Mustafa, and Juan Manuel Mauricio. "Load-Sharing Management for Fuel Cell Hybrid Electric Vehicle (FCHEV) Based on Intelligent Controllers and Optimization Algorithms." In Electric Vehicles - Design, Modelling and Simulation [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.113001.

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This study proposes an intelligent controller for a hydrogen-powered plug-in fuel cell hybrid electric vehicle (FCHEV) that integrates a fuel cell (FC) with two energy storage systems, which are ultracapacitor (UC) and battery (BAT), which results in a high dynamic response along with maintaining efficient use of resources for energy storage. Moreover, this controller works on effectively managing the system power flow to reduce the amount of power needed for the FCHEV. An effective energy management system (EMS) has been developed that utilizes the fuzzy logic controller (FLC) and artificial

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Hollingsworth Peter. "An Investigation of Value Modelling for Commercial Aircraft." In Air Transport and Operations. IOS Press, 2012. https://doi.org/10.3233/978-1-60750-812-0-358.

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One of the issues with commercial aircraft design is that most of the methods of developing and propagating requirements allow for nominally satisfying but less than ideal designs to be produced. There is a significant body of work that illustrates the issues that are inherent with the standard requirements flow-down approach. As an attempt to address this, a series of approaches variously named Value-Driven and Value-Centric Design have been proposed. In looking at commercial aircraft and engine design and operations several authors have suggested using a simplified Value model known as Surpl

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Xu, Xun. "Integration Based on STEP Standards." In Integrating Advanced Computer-Aided Design, Manufacturing, and Numerical Control. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-714-0.ch011.

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The integration model (Model B) as discussed in the previous chapter makes use of exchangeable neutral data formats such as IGES (1980). Neutral data formats provide a middle tier to connect CAD and CAM systems. Thus, Model B can create a collaborative manufacturing environment and make the design data exchange possible for large projects at the international level. Yet, some problems still remain. IGES was designed to exchange geometrical information only, so additional design or manufacturing information (such as feature information) within a proprietary model is ignored. During data exchang

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Streszczenia konferencji na temat "Plug Flow Modelling"

Puthuparampil, Jobin, Henry Pong, and Pierre Sullivan. "Modelling and Optimization of Plug Flow Mufflers in Emission Control Systems." In Noise and Vibration Conference and Exhibition. SAE International, 2017. http://dx.doi.org/10.4271/2017-01-1782.

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Vojtesek, Jiri, Lubos Spacek, and Frantisek Gazdos. "Control Of Temperature Inside Plug-Flow Tubular Chemical Reactor Using 1DOF And 2DOF Adaptive Controllers." In 32nd Conference on Modelling and Simulation. ECMS, 2018. http://dx.doi.org/10.7148/2018-0239.

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Zambrano, Jesús, Bengt Carlsson, Stefan Diehl, and Emma Nehrenheim. "A Simpli?ed Model of an Activated Sludge Process with a Plug-Flow Reactor." In Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016. Linköping University Electronic Press, 2018. http://dx.doi.org/10.3384/ecp17142824.

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Schmidt, Henrik Blicher, Thomas Iversen Solfeldt, and Tommy Pedersen. "Modelling Hydrate Plug Capacity of Flexible Pipes." In ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/omae2023-104730.

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Abstract Hydrate plug detection and removal in flexible pipe has gained increasing attention from operators and at the same time not much has been published on the subject. When operating flexible pipe for hydrocarbon applications there is a risk of hydrate formation. Hydrates can block the bore of the flexible pipe and differential pressure can form across the hydrate plug. This differential pressure can damage the inner layers of the flexible pipe. The objective of the present study is to estimate the differential pressure capacity of the flexible pipe. Hydrates most often form during produc

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Vogl, Anastasia, Nile Waldal, Parisa Sarmadi, Adam Fershtman, Rodrigo S. Mitishita, and Ian A. Frigaard. "Plug Cementing Stability." In ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/omae2022-79290.

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Abstract Off bottom plugs are set in both well drilling (kick-off plugs) and in well decommissioning (abandonment plugs). In both cases a dense fluid (cement slurry) is placed over less dense well-bore fluids. In the case of kick-off plugs, viscous pills are commonly used, which can help stabilize this mechanically unstable situation. Abandonment plugs however are often set on top of the freshwater that is used to clean the well prior to abandonment. This is the current practice for many wells in Northwestern Canada. It is a mystery how such cement plugs are able to stay in place for a time su

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Westgate, Z. J., L. Tapper, B. M. Lehane, and C. Gaudin. "Modelling the Installation of Stiffened Caissons in Overconsolidated Clay." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79125.

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Design of suction caissons for installation in overconsolidated clay presents several geotechnical engineering challenges. These include (i) predicting the installation resistance and required ‘suction’ pressure, (ii) ensuring adequate skirt length to account for vertical plug heave, and (iii) accommodating the structural engineering stiffening requirements and their effects on the penetration resistance and plug heave. A suite of centrifuge tests in overconsolidated kaolin clay was carried out to investigate the effects of stiffener geometry on penetration resistance during direct jacking and

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Kumar, Ashwin, Blaine Hugger, and Joseph W. Meadows. "Modelling of High-Pressure Combustion Rig with After-Burner and Supersonic Nozzle using Plug Flow Reactor Network Model." In AIAA Propulsion and Energy 2020 Forum. American Institute of Aeronautics and Astronautics, 2020. http://dx.doi.org/10.2514/6.2020-3893.

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Adilov, Ravan, Ravana Karimova, and Javid Aliyev. "Interventions in High Cross-Flow / Auto Gas Lift Well in Chirag Field, Caspian Region." In SPE/ICoTA Well Intervention Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/212929-ms.

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Abstract This paper presents the intervention activities performed under high crossflow conditions in Chirag Auto Gas Lift (In-situ GL/Natural GL) completion design where crossflow between the reservoir zones posed a major challenge. Auto Gas Lift design was installed on a few selected wells of the Chirag field due to a lack of conventional gas-lift equipment, compressors, and pipelines. When Auto gas lift wells are shut in, crossflow occurs between the high-pressure gas-bearing zone used to lift the oil and the lower- pressured oil-bearing reservoir zone. The amount of crossflow is controlled

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O’Loughlin, Conleth, Christophe Gaudin, Matthew Quah, and Michael Perry. "Centrifuge Modelling of a Novel Skirted Spudcan for Penetration in Layered Soil." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96541.

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Abstract This paper reports on a series of centrifuge tests to investigate the feasibility and performance of a novel spudcan foundation design featuring a peripheral skirt with side openings. The ‘skirted spudcan’, designed and patented by Keppel, is particularly beneficial in layered seabeds with a clay layer overlaying sand. The purpose of the side openings is to enable the clay trapped within the spudcan skirt to flow outside the skirt, so the skirt can penetrate into the sand and develop the required fixities against combined vertical, horizontal and moment loading. The centrifuge tests c

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Chen, Ming, and Karen Schirmer. "A Modelling Approach to the Design Optimization of Catalytic Converters of I.C. Engines." In ASME 2003 Internal Combustion Engine and Rail Transportation Divisions Fall Technical Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/icef2003-0729.

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In this paper, a modelling approach to the design optimization of catalytic converters is presented. The first step of the optimization is the model-assisted sizing of catalysts. For a given inlet exhaust condition, a semi-empirical, experimentally calibrated, 0-D steady state catalyst model is employed to sort through a data base of catalysts under given restraints, yielding few successful candidates. Following this screening process, a 1-D transient plug-flow catalyst model is used to analyze the species concentrations and the temperature variation across the catalyst. The second step deals

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Raporty organizacyjne na temat "Plug Flow Modelling"

Bédard, K., A. Marsh, M. Hillier, and Y. Music. 3D geological model of the Western Canadian Sedimentary Basin in Saskatchewan, Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331747.

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The Western Canadian Sedimentary Basin (WCSB) covers a large part of southern Saskatchewan and hosts many resources such as critical mineral deposits (i.e. potash, helium and lithium) as well as oil and gas reservoirs and is also targeted for deep CO2 storage projects. There is also growing interest in the groundwater resources, the geothermal potential and hydrogen recovery potential. These applications require knowledge of the subsurface geology such as formation thickness and depth, relationships with adjacent formations or unconformities and ultimately, distribution of physical properties

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