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Dissertations / Theses on the topic 'Coolant fluid dynamics'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Eroglu, Sinan. "Coupling of CFD analysis of the coolant flow with the FE thermal analysis of a diesel engine." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/12655.

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In the process of engine design, it is important for the engine designer to predict the accurate component temperatures. Controlling the temperature of engine components requires a better understanding of the coolant behaviour in the coolant jacket of an engine which is critical to internal combustion engine design, The studies reported in the literature emphasize the influence of the cooling system on other engine operation such as exhaust emission, fuel consumption and engine wear. In this context, much work has been done with the purpose of improving the coolant jacket design and components

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2

Leister, Tim. "Dynamics of rotors on refrigerant-lubricated gas foil bearings." Thesis, Lyon, 2021. http://www.theses.fr/2021LYSEI010.

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La technologie du palier à feuilles (GFB) est l’un des facteurs clés pour la transition envisagée vers des machines tournantes sans huile dans les futurs moyens de transport. Outre les nombreux avantages en termes de taille, de poids, d’efficacité et de propreté, les GFBs offrent la possibilité unique d’être lubrifiés par des fluides de travail tels que les réfrigérants. Cependant, l’analyse numérique des systèmes GFB–rotor lubrifiés par réfrigérant représente un problème interdisciplinaire d’une énorme complexité et d’intérêts contradictoires entre des approches de modélisation et de résoluti

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3

Johnson, Perry L. "Toward increasing performance and efficiency in gas turbines for power generation and aero-propulsion unsteady simulation of angled discrete-injection coolant in a hot gas path crossflow." Honors in the Major Thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/444.

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This thesis describes the numerical predictions of turbine film cooling interactions using Large Eddy Simulations. In most engineering industrial applications, the Reynolds-Averaged Navier-Stokes equations, usually paired with two-equation models such as k-Greek lowercase letter epsilon] or k-Greek lowercase letter omega], are utilized as an inexpensive method for modeling complex turbulent flows. By resolving the larger, more influential scale of turbulent eddies, the Large Eddy Simulation has been shown to yield a significant increase in accuracy over traditional two-equation RANS models for

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4

Johns, Adam Stephen. "Computational fluid dynamic modelling and optimisation of internal twist-drill coolant channel flow." Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/9288/.

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Due to the increasingly challenging thermal loads during drilling applications, coolant application is prevalent in twist-drill machining of metals. However, because the cutting zone is not directly observable, there is limited knowledge encompassing the distribution of coolant during the cutting process. This work looks to expand current knowledge of coolant delivery during the cutting process and inform future tool design through the application of numerical methods. This is implemented in the form of two numerical models: a through-tool model, which examines internal coolant flow and the se

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5

Gudmundsson, Yngvi. "Performance evaluation of wet-cooling tower fills with computational fluid dynamics." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/19908.

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Thesis (MScEng)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: A wet-cooling tower fill performance evaluation model developed by Reuter is derived in Cartesian coordinates for a rectangular cooling tower and compared to cross- and counterflow Merkel, e-NTU and Poppe models. The models are compared by applying them to a range of experimental data measured in the cross- and counterflow wet-cooling tower test facility at Stellenbosch University. The Reuter model is found to effectively give the same results as the Poppe method for cross- and counterflow fill configuration as well as the Me

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6

DOMALAPALLY, PHANI KUMAR. "Computational Thermal Fluid Dynamic Analysis of Cooling Systems for Fusion Reactor Components." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2514474.

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In a fusion reactor during plasma operation, the heat loads on plasma facing components can be as high as 5 MW/m2 [1], which should be removed by a proper mechanism to prevent the damage of reactor components. In order to handle such high heat fluxes a suitable heat sink with proper thermal hydraulics is required. In the recent past several heat sinks have been proposed; among which the Hypervapotron heat sink, operating in the highly subcooled boiling regime, is considered as one of the potential candidates. In order to accurately predict the performance of the system, a thermal hydraulic ana

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7

Wang, Yong. "Microfluidic technology for integrated thermal management: micromachined synthetic jet." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/5438.

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8

Carson, Robert J. "Critical heat flux for a heated surface impacted by a stream of liquid droplets." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/19579.

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9

Maletzke, Fabian. "Investigation Of The Influence Of Geometrical Parameters On Heat Transfer In Matrix Cooling : A Computational Fluid Dynamics Approach." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-177185.

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Modern gas turbine blades and vanes are operated at temperatures above their material’s melting point. Active external and internal cooling are therefore necessary to reach acceptable lifetimes. One possible internal cooling method is called matrix cooling, where a matrix of intersecting cooling air channels is integrated into a blade or vane. To further increase the efficiency of gas turbines, the amount of cooling air must be reduced. Therefore it is necessary that heat transfer inside a cooling matrix is well understood. In the first part of the thesis, a methodology for estimating heat tra

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10

Kakade, Vinod. "Fluid Dynamic and Heat Transfer Measurements in Gas Turbine Pre-Swirl Cooling Systems." Thesis, University of Bath, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503370.

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11

Aljohani, Faraj Jaber R. "Improving Cooling Effectiveness in Air-Cooled Data Centres: Analysis and Assessment using Computational Fluid Dynamics." Thesis, Curtin University, 2018. http://hdl.handle.net/20.500.11937/75227.

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Datacentre efficiency becomes increasingly important as demand for IT infrastructure grows. This thesis presents detailed Computational Fluid Dynamics analyses of flow and heat transfer within typical raised floor datacentres. Compared with previous studies, greater understanding of the unsteady flow and heat transfer in datacentres resulted from using Scale-Adaptive turbulence modelling instead of a RANS approach. This led to a novel rack-level sub-cooler design, which was shown to allow higher volumetric heat generation rates within datacentres.

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12

Tran, Nghia Trong Van. "Film cooling with wake passing applied to an annular endwall." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4582.

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Advancement in turbine technology has far reaching effects on today's society and environment. With more than 90% of electricity and 100% of commercial air transport being produced by the usage of gas turbine, any advancement in turbine technology can have an impact on fuel used, pollutants and carbon dioxide emitted to the environment. Within the turbine engine, fully understanding film cooling is critical to reliability of a turbine engine. Film cooling is an efficient way to protect the engine surface from the extremely hot incoming gas, which is at a temperature much higher than allowable

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13

Dall'Olio, Giacomo. "CFD study of electric motor's cooling." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Nowadays electrification is one of the leading fields of engineering as it is seen as one of the key factors that can reduce environmental impact of human activities by reducing theirs polluting emissions. Mobility is the sector in which electric driven systems are diffusing the most. The search for performance in one of its main component, the electric motor, is therefore of fundamental importance in terms of efficiency and reliability of every electric driven applications. The optimization of thermal aspects covers a primary role and highly affect power consumption and lifetime of components

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14

Johansson, Adam, and Jonas Gunnarsson. "Predicting Flow Dynamics of an Entire Engine Cooling System Using 3D CFD." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-62763.

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A combustion engine generates a lot of heat which need to be cooled to prevent damages to the engine and the surrounding parts. If the cooling system can not provide enough cooling to keep the engine in a well defined range of temperatures performance and durability will decrease and emissions increase. It is also important that the cooling system do not over-cool the engine, since this may result in rough running, increased engine friction and an overall negative performance. The aim of this thesis work is to create a complete 3D digital model of the cooling system for the first generation VE

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15

VENTURINO, GIULIO. "Thermal and fluid dynamic analysis of corrugated channels for the internal cooling of turbine blades." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1073616.

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Il principale scopo di questa relazione è lo studio, mediante simulazioni numeriche, dello scambio termico in un canale rettangolare di aspect ratio pari a 5, dotato di nervature inclinate di 45° su uno o due lati. Le rimanenti superfici del canale sono state considerate lisce e non riscaldate. Le dimensioni del dominio computazionale sono le stesse dell’impianto sperimentale nel dipartimento del DIME, il cui utilizzo ha consentito di ricavare dati sperimentali utili per la validazione dei risultati numerici che verranno presentati. Per le simulazioni numeriche il software Ansys Fluent 19.2

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16

Messana, Michael R. "Heat transfer to an accelerated stream of droplets impinging onto a heated surface." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/15950.

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17

Burger, Abri Andre Spies. "Numerical analysis of flow around infinite and finite cylinders at trans-critical Reynolds numbers with and without surface roughness." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97053.

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Thesis (MEng)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: This thesis investigates the flow field and pressure distributions around cylinders at trans-critical Reynolds numbers using the k-ε Realizable turbulence model. A steady state 2-D and 3-D Fluent® model is successfully developed to evaluate the effects of changing various modelling parameters on the static pressure distribution around an infinite and finite cylinder. These parameters include surface roughness, cylinder rotation and air viscosity at the cylinder surface. The subsequent results obtained are compared to each other

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18

Jiang, Kai. "An Experimental Facility for Studying Heat Transfer in Supercritical Fluids." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32063.

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A state-of-art research facility has been built at the University of Ottawa, which is suitable for thermalhydraulic experiments in support of the development of the Canadian Supercritical-Water-Cooled Reactor (SCWR). The facility is a recirculating flow loop, using carbon dioxide as a medium and having three different test sections, two tubes with inner diameters of 8 and 22 mm, respectively, and a three-rod bundle. The loop can operate within ranges of pressure, temperature, heat flux and mass flux, which are of interest to the current SCWR design. The present thesis includes a comprehensive

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19

Huisamen, Ewan. "A thermo-hydraulic model that represents the current configuration of the SAFARI-1 secondary cooling system." Diss., University of Pretoria, 2005. http://hdl.handle.net/2263/66205.

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This document focuses on the procedure and results of creating a thermohydraulic model of the secondary cooling system of the SAFARI-1 research reactor at the Pelindaba facility of the South African Nuclear Energy Corporation (Necsa) to the west of Pretoria, South Africa. The secondary cooling system is an open recirculating cooling system that comprises an array of parallel-coupled heat exchangers between the primary systems and the main heat sink system, which consists of multiple counterflow-induced draught cooling towers. The original construction of the reactor was a turnkey installation,

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20

Nambisan, Jayadev. "EXPERIMENTAL STUDY ON PRESSURE LOSSES IN ADDITIVELY MANUFACTURED AND MACHINED ORIFICES : A rectangular geometry of additively manufactured MA 247 orice and a circular geometry ofmachined AW-6082 T6 orifice study." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-170131.

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Gas turbine components for cooling purposes including other unique and complex three-dimensional designs could be made explicitly possible through additive manufacturing using SLM technology in contrary to the conventional machining processes. Nevertheless, the surface roughness and subsequently the friction factor governs thepressure drop in these components implicitly, thus, influencing the secondary air flow system of a gas turbine. Research studies to understand and predict flow behaviours through especially AM parts are still in a budding stage, and thus, in this scope of thesis, the same

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21

Yata, Vishnu Vardhan Reddy. "Investigation of Spray Cooling Schemes for Dynamic Thermal Management." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc984153/.

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This study aims to investigate variable flow and intermittent flow spray cooling characteristics for efficiency improvement in active two-phase thermal management systems. Variable flow spray cooling scheme requires control of pump input voltage (or speed), while intermittent flow spray cooling scheme requires control of solenoid valve duty cycle and frequency. Several testing scenarios representing dynamic heat load conditions are implemented to characterize the overall performance of variable flow and intermittent flow spray cooling cases in comparison with the reference, steady flow spray c

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22

Backman, Björn. "Future Upgrades of the LHC Beam Screen Cooling System." Thesis, Linköping University, The Department of Physics, Chemistry and Biology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7727.

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<p>The topic of this thesis concerns the LHC, the next large particle accelerator at CERN which will start operating in 2007. Being based on superconductivity, the LHC needs to operate at very low temperatures, which makes great demands on the cryogenic system of the accelerator. To cope with the heat loads induced by the particle beam, a beam screen cooled with forced flow of supercritical helium is used.</p><p>There is an interest in upgrading the energy and luminosity of the LHC in the future and this would require a higher heat load to be extracted by the beam screen cooling system. The ob

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23

Virdi, Amandeep Singh. "Aero-thermal performance and enhanced internal cooling of unshrouded turbine blade tips." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:62c3e94a-a1ff-47a8-bb81-e870b0013f11.

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The tips of unshrouded, high-pressure turbine blades are prone to significantly high heat loads. The gap between the tip and over-tip casing is the root cause of undesirable over-tip leakage flow that is directly responsible for high thermal material degradation and is a major source of aerodynamic loss within a turbine. Both must be minimised for the safe working and improved performance of future gas-turbines. A joint experimental and numerical study is presented to understand and characterise the heat transfer and aerodynamics of unshrouded blade tips. The investigation is undertaken with t

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24

Ravi, Bharath Viswanath. "Heat Transfer Performance Improvement Technologies for Hot Gas Path Components in Gas Turbines." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/71352.

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In the past few decades, the operating temperatures of gas turbine engines have increased significantly with a view towards increasing the overall thermal efficiency and specific power output. As a result of increased turbine inlet temperatures, the hot gas path components downstream of the combustor section are subjected to high heat loads. Though materials with improved temperature capabilities are used in the construction of the hot gas path components, in order to ensure safe and durable operation, the hot gas path components are additionally supplemented with thermal barrier coatings (TBC

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25

Karlsson, Anders. "Cooling methods for electrical machines : Simulation based evaluation of cooling fins found on low voltage general purpose machines." Thesis, Uppsala universitet, Elektricitetslära, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-217171.

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The main goal of this thesis project is to identify interesting concepts related to cooling of electrical motors and generators which could be evaluated using suitable computer simulation tools. As the project proceeded it was decided to focus on investigating how the air from a fan flows along the finned frame of a general purpose low voltage electrical machine, how the heat is transferred between the frame and the cooling air and what the temperature distribution looks like. It was also investigated if it is possible to make improvements in the effectiveness of the cooling without adding add

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26

Gerty, Donavon R. "Fluidic driven cooling of electronic hardware." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/31722.

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Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Glezer, Ari; Committee Member: Alben, Silas; Committee Member: Joshi, Yogendra; Committee Member: Smith, Marc; Committee Member: Webster, Donald. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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27

Orhan, Omer Emre. "Numerical Investigation On Cooling Of Small Form Factor Computer Cases." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608160/index.pdf.

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In this study, cooling of small form factor computer is numerically investigated. The numerical model is analyzed using a commercial computational fluid dynamics software Icepak&trade<br>. The effects of grid selection, discretization schemes and turbulence models are discussed and presented. In addition, physical phenomena like recirculation and relaminarization are addressed briefly. For a comparison with the computational fluid dynamics results, an experiment is conducted and some temperature measurements are obtained from critical locations inside the chassis.The computational results were

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28

Olakoyejo, O. T. (Olabode Thomas). "Geometric optimisation of conjugate heat transfer in cooling channels with different cross-sectional shapes." Thesis, University of Pretoria, 2012. http://hdl.handle.net/2263/25484.

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In modern heat transfer, shape and geometric optimisation are new considerations in the evaluation of thermal performance. In this research, we employed constructal theory and design to present three-dimensional theoretical and numerical solutions of conjugate forced convection heat transfer in heat generating devices with cooling channels of different cross-sectional shapes. In recent times, geometric configurations of cooling channel have been found to play an important role in thermal performance. Therefore, an efficient ways of optimally designing these cooling channels shapes is required.

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29

Storm, Heinrich Claude. "CFD investigation of flow in and around a natural draft cooling tower." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4353.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Cooling tower inlet losses and effective flow diameter under no crosswind conditions and the pressure distribution around a circular cylinder subjected to a crosswind are modelled using CFD. The CFD model used to evaluate the inlet losses is validated with data measured in an experimental cooling tower sector model and data obtained from literature. The effect of different inlet geometries on the inlet loss coefficient and the effective diameter are investigated in order to imp

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30

Reuter, Hanno Carl Rudolf. "Performance evaluation of natural draught cooling towers with anisotropic fills." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5440.

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Thesis (PhD) -- University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: In the design of a modern natural draught wet-cooling tower (NDWCT), structural and performance characteristics must be considered. Air flow distortions and resistances must be minimised to achieve optimal cooling which requires that the cooling towers must be modelled two-dimensionally and ultimately threedimensionally to be optimised. CFD models in literature are found to be limited to counterflow cooling towers packed with film fill, which is porous in one direction only and generally has a high pressure drop, as w

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31

Miller, Mark W. "Heat transfer in a coupled impingement-effusion cooling system." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4807.

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The efficiency of air-breathing gas turbine engines improves as the combustion temperature increases. Therefore, modern gas turbines operate at temperatures greater than the melting temperature of hot-gas-path components, and cooling must be introduced in order to maintain mechanical integrity of those components. Two highly effective techniques used in modern designs for this purpose are impingement cooling and use of coolant film on hot-gas-path surface introduced through discrete film or effusion holes. In this study, these two mechanisms are coupled into a single prototype cooling system.

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32

Wilson, Scott E. "Investigation of Copper Foam Coldplates as a High Heat Flux Electronics Cooling Solution." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6944.

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Compact heat exchangers such as porous foam coldplates have great potential as a high heat flux cooling solution for electronics due to their large surface area to volume ratio and tortuous coolant path. The focus of this work was the development of unit cell modeling techniques for predicting the performance of coldplates with porous foam in the coolant path. Multiple computational fluid dynamics (CFD) models which predict porous foam coldplate pressure drop and heat transfer performance were constructed and compared to gain insight into how to best translate the foam microstructure into u

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33

Pervaiz, Salman. "Numerical and Experimental Investigations of the Machinability of Ti6AI4V : Energy Efficiency and Sustainable Cooling/ Lubrication Strategies." Doctoral thesis, KTH, Industriell produktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-173594.

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Titanium alloys are widely utilized in the aerospace, biomedical,marine, petro-chemical and other demanding industries due to theirdurability, high fatigue resistance and ability to sustain elevateoperating temperature. As titanium alloys are difficult to machine, dueto which machining of these alloys ends up with higher environmentalburden. The industry is now embracing the sustainable philosophy inorder to reduce their carbon footprint. This means that the bestsustainable practices have to be used in machining of titanium alloys aswell as in an effort to reduce the carbon footprint and green

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34

Peterson, Blair A. "A Study of Blockage due to Ingested Airborne Particulate in a Simulated Double-Wall Turbine Internal Cooling Passage." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429738411.

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35

Ozturk, Emre. "Cfd Analyses Of Heat Sinks For Cpu Cooling With Fluent." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605700/index.pdf.

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In this study, forced cooling of heat sinks mounted on CPU&rsquo<br>s was investigated. Heat sink effectiveness, effect of turbulence models, effect of radiation heat transfer and different heat sink geometries were numerically analyzed by commercially available computational fluid dynamics softwares Icepak and Fluent. The numerical results were compared with the experimental data and they were in good agreement. Conjugate heat transfer is simulated for all the electronic cards and packages by solving Navier-Stokes equations. Grid independent, well converged and well posed models were run and

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Tang, Brian M. T. "Unshrouded turbine blade tip heat transfer and film cooling." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:f8479e89-9cd1-4aa7-b5c8-8068ad80de54.

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This thesis presents a joint computational and experimental investigation into the heat transfer to unshrouded turbine blade tips suitable for use in high bypass ratio, large civil aviation turbofan engines. Both the heat transfer to the blade tip and the over-tip leakage flow over the blade tip are characterised, as each has a profound influence on overall engine efficiency. The study is divided into two sections; in the first, computational simulations of a very large scale, low speed linear cascade with a flat blade tip were conducted. These simulations were validated against experimental d

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37

Rabhi, Achref. "Numerical Modelling of Subcooled Nucleate Boiling for Thermal Management Solutions Using OpenFOAM." Licentiate thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-53307.

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Two-phase cooling solutions employing subcooled nucleate boiling flows e.g. thermosyphons, have gained a special interest during the last few decades. This interest stems from their enhanced ability to remove extremely high heat fluxes, while keeping a uniform surface temperature. Consequently, modelling and predicting boiling flows is very important, in order to optimise the two-phase cooling operation and to increase the involved heat transfer coefficients. In this work, a subcooled boiling model is implemented in the open-source code OpenFOAM to improve and extend its existing solver react

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38

Takamuku, Kohei. "Analysis of Flow and Heat Transfer in the U.S. EPR Heavy Reflector." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/36306.

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The U.S. Evolutionary Power Reactor (EPR) is a new, large-scale pressurized water reactor made by AREVA NP Inc. Surrounding the core of this reactor is a steel wall structure sitting inside called the heavy reflector. The purpose of the heavy reflector is to reduce the neutron flux escaping the core and thus increase the efficiency of the reactor while reducing the damage to the structures surrounding the core as well. The heavy reflector is heated due to absorption of the gamma radiation, and this heat is removed by the water flowing through 832 cooling channels drilled through the heavy refl

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Nicholas, Jack Robert. "Heat transfer for fusion power plant divertors." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:efedf39b-401b-418f-b510-386a512314a8.

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Exhausting the thermal power from a fusion tokamak is a critical engineering challenge. The life of components designed for these conditions has a strong influence on the availability of the machine. For a fusion power plant this dependence becomes increasingly important, as it will influence the cost of electricity. The most extreme thermal loading for a fusion power plant will occur in the divertor region, where components will be expected to survive heat fluxes in excess of 10 MW/m<sup>2</sup> over a number of years. This research focussed on the development of a heat sink module for operat

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40

JImenez, Lopez Carlos. "Performance analysis and validation of high-temperature cooling panels in passive geothermal system." Thesis, KTH, Hållbara byggnader, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-247915.

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High Temperature Cooling, HTC, is a thermal conditioning strategy, which aims to reducemixing and transfer heat losses. Cooling capacity strongly depends on heat transfer coefficientsand offers a great response and several advantages in terms of efficiency and sustainability.Among the advantages, there is evidence that HTC offers an increment of energy efficiency ofHVAC systems, provision of healthier and more comfortable indoor climate and provide widepotentials for the applications of renewable. This principle leads to a higher energy efficiency ofwater-based radiant cooling systems.This pap

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Shrivastava, Saurabh K. "Cooling analysis of data centers CFD modeling and real-time calculators /." Diss., Online access via UMI:, 2008.

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Thesis (Ph. D.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Science, Department of Mechanical Engineering, 2008.<br>Includes bibliographical references.

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42

Mathison, Randall Melson. "Experimental and Computational Investigation of Inlet Temperature Profile and Cooling Effects on a One and One-Half Stage High-Pressure Turbine Operating at Design-Corrected Conditions." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250281163.

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Åkerberg, Andreas. "CFD analyses of the gas flow inside the vessel of a hot isostatic press." Thesis, KTH, Kraft- och värmeteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-101168.

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Hot isostatic pressing (HIP) is a thermal treatment method that is used to consolidate, densify or bondcomponents and materials. Argon gas is commonly used as the pressure medium and is isostaticallyapplied to the material with an excess pressure of 500-2000 bar and a temperature of 500-2200oC. WithHIP treatment being a well-established technology for the last decades, one is now striving to obtain anincreased understanding of local details in the internal gas flow and heat flux inside the HIP apparatus.The main objective of this work is to assess the potential of using computational fluid dyn

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Owen, Michael Trevor Foxwell. "A numerical investigation of air-cooled steam condenser performance under windy conditions." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4101.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: This study is aimed at the development of an efficient and reliable method of evaluating the performance of an air-cooled steam condenser (ACSC) under windy conditions, using computational fluid dynamics (CFD). A two-step modelling approach is employed as a result of computational limitations. The numerical ACSC model developed in this study makes use of the pressure jump fan model, amongst other approximations, in an attempt to minimize the computational expense of the perform

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Durham, Michael Glenn. "COMPARISON OF SQUARE-HOLE AND ROUND-HOLE FILM COOLING: A COMPUTATIONAL STUDY." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4390.

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Film cooling is a method used to protect surfaces exposed to high-temperature flows such as those that exist in gas turbines. It involves the injection of secondary fluid (at a lower temperature than that of the main flow) that covers the surface to be protected. This injection is through holes that can have various shapes; simple shapes such as those with a straight circular (by drilling) or straight square (by EDM) cross-section are relatively easy and inexpensive to create. Immediately downstream of the exit of a film cooling hole, a so-called horseshoe vortex structure consisting of a pair

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Bourke, Jason Michael. "Implications of Airflow Dynamics and Soft-Tissue Reconstructions for the Heat Exchange Potential of Dinosaur Nasal Passages." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1448453168.

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Reding, Brian D. II. "Tubular and Sector Heat Pipes with Interconnected Branches for Gas Turbine and/or Compressor Cooling." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/969.

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Designing turbines for either aerospace or power production is a daunting task for any heat transfer scientist or engineer. Turbine designers are continuously pursuing better ways to convert the stored chemical energy in the fuel into useful work with maximum efficiency. Based on thermodynamic principles, one way to improve thermal efficiency is to increase the turbine inlet pressure and temperature. Generally, the inlet temperature may exceed the capabilities of standard materials for safe and long-life operation of the turbine. Next generation propulsion systems, whether for new supersonic t

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Weiß, Frank-Peter. "Aktuelle Themen der Reaktorsicherheitsforschung in Deutschland." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-28406.

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Die Veranstaltung widmete sich mit der Borverdünnung in Druckwasserreaktoren bzw. mit der Verstopfung der Sumpfansaugsiebe durch freigesetztes Isolationsmaterial schwerpunktmäßig zwei Themen der Reaktorsicherheit, die auch in aktuellen Aufsichtsverfahren eine Rolle spielen. Eingebettet in den internationalen Kontext wollten die Veranstalter die sicherheitstechnische Bedeutung dieser Themen für die deutschen Anlagen beleuchten und die Auswirkungen auf die zu erbringenden Sicherheitsnachweise und den Anlagenbetrieb darstellen. Dabei kamen Gutachter, Vertreter der Forschung, Hersteller und Betrei

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Weiß, Frank-Peter. "Aktuelle Themen der Reaktorsicherheitsforschung in Deutschland." Forschungszentrum Rossendorf, 2006. https://hzdr.qucosa.de/id/qucosa%3A21667.

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Die Veranstaltung widmete sich mit der Borverdünnung in Druckwasserreaktoren bzw. mit der Verstopfung der Sumpfansaugsiebe durch freigesetztes Isolationsmaterial schwerpunktmäßig zwei Themen der Reaktorsicherheit, die auch in aktuellen Aufsichtsverfahren eine Rolle spielen. Eingebettet in den internationalen Kontext wollten die Veranstalter die sicherheitstechnische Bedeutung dieser Themen für die deutschen Anlagen beleuchten und die Auswirkungen auf die zu erbringenden Sicherheitsnachweise und den Anlagenbetrieb darstellen. Dabei kamen Gutachter, Vertreter der Forschung, Hersteller und Betrei

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Yalcin, Fidan Seza. "Cfd Analysis Of A Notebook Computer Thermal Management Solution." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609483/index.pdf.

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In this study, the thermal management system of a notebook computer is investigated by using a commercial finite volume Computational Fluid Dynamics (CFD) software. After taking the computer apart, all dimensions are measured and all major components are modeled as accurately as possible. Heat dissipation values and necessary characteristics of the components are obtained from the manufacturer&#039<br>s specifications. The different heat dissipation paths that are utilized in the design are investigated. Two active fans and aluminum heat dissipation plates as well as the heat pipe system are m

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