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Rozprawy doktorskie na temat „Forced convection heat transfer rate”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Lee, Man. "Forced convection heat transfer in integrated microchannel heat sinks /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?MECH%202006%20LEE.

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Chick, Eric. "Problems in forced and free convection." Thesis, Keele University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241449.

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3

Thiele, Roman. "Prediction of forced convection heat transfer to Lead-Bismuth-Eutectic." Licentiate thesis, KTH, Reaktorteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-121983.

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The goal of this work is to investigate the capabilities of two different commercial codes, OpenFOAM and ANSYS CFX, to predict forced convection heat transfer in low Prandtl number fluids and investigate the sensitivity of these predictions to the type of code and to several input parameters.The goal of the work is accomplished by predicting forced convection heat transfer in two different experimental setups with the codes OpenFOAM and ANSYS CFX using three different turbulence models and varying the input parameters in an extensive sensitivity analysis. The computational results are compared

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4

Alhamdan, Abdullah M. "Experimental studies on natural and forced convection around spherical and mushroom shaped particles." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1145369315.

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5

Hama, Katsuhiko. "Film boiling heat transfer in various liquids under natural convection and forced convection conditions." Kyoto University, 2006. http://hdl.handle.net/2433/143793.

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6

Kirez, Oguz. "A Numerical Forced Convection Heat Transfer Analysis Of Nanofluids Considering Performance Criteria." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615167/index.pdf.

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A nanofluid is a new heat transfer fluid produced by mixing a base fluid and solid nano sized particles. This fluid has great potential in heat transfer applications, because of its increased thermal conductivity and even increased Nusselt number due to higher thermal conductivity, Brownian motion of nanoparticles, and other various effects on heat transfer phenomenon. In this work, the first aim is to predict convective heat transfer of nanofluids. A numerical code is created and run to obtain results in a pipe with two different boundary conditions, constant wall temperature and constant wal

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7

Park, Do Seo. "Experimental and numerical study of laminar forced convection heat transfer for a dimpled heat sink." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1571.

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8

Tough, M. C. "A heat transfer model of forced convection, cross flow heat exchangers used in space heating." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259171.

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9

Koski, Jennifer Rose. "Radiatively induced ignition of PMMA in the presence of forced convection." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/15886.

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10

Thorpe, Roger. "Heat transfer by forced convection in beds of granular adsorbent material for solid sorption heat pumps." Thesis, University of Warwick, 1996. http://wrap.warwick.ac.uk/34618/.

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A novel adsorption cycle in which enhanced heat transfer between the adsorbent and external heat sinks and sources is achieved by forced convection of refrigerant gas through the adsorbent bed is presented This cycle is further developed by the use of inert beds to store the heat of desorption and sensible heat between phases. The performance and utility of such a cycle will depend on the heat transfer coefficients and pressure drops that result when the refrigerant gas is circulated through the beds The heat transfer and pressure drop characteristics of a bed of granular active carbon were in

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11

Vijay, Dig. "Forced convective heat transfer through open cell foams." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2017. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-226330.

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The purpose of this study is to investigate forced convection of air through open cell foams. It can be numerically investigated either by implementing the time efficient macroscopic models or computationally expensive microscopic models. However, during the course of this study, it was observed that the macroscopic models are not sufficient for determining the desired key parameters. Nevertheless, it is still possible that these macroscopic models can be used to design an application accurately with minimum time efforts if the concerned key parameters are already known through other means. Ac

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12

Wangdhamkoom, Panitan. "Characteristics of multimode heat transfer in a differentially-heated horizontal rectangular duct." Thesis, Curtin University, 2007. http://hdl.handle.net/20.500.11937/1007.

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This study presents the numerical analysis of steady laminar flow heat transfer in a horizontal rectangular duct with differential heating on the vertical walls. Three heating configurations: one uniform wall temperature (CS1) and two linearly varying wall temperature cases (CS2 and CS3) are analysed. The study considers the combined effects of natural convection, forced convection and radiation heat transfer on the overall heat transfer characteristics. Air, which is assumed to be a non-participating medium, is chosen as the working fluid. A computational fluid dynamics solver is used to solv

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13

Okamura, Takahiro. "Forced convection heat transfer of He 1 and He 2 up to supercritical pressures." Kyoto University, 2004. http://hdl.handle.net/2433/145258.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(エネルギー科学)<br>甲第11206号<br>エネ博第103号<br>新制||エネ||28(附属図書館)<br>22790<br>UT51-2004-T175<br>京都大学大学院エネルギー科学研究科エネルギー応用科学専攻<br>(主査)教授塩津正博, 教授宅田裕彦, 助教授白井康之<br>学位規則第4条第1項該当

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14

Ozerinc, Sezer. "Heat Transfer Enhancement With Nanofluids." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611862/index.pdf.

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A nanofluid is the suspension of nanoparticles in a base fluid. Nanofluids are promising for heat transfer enhancement due to their high thermal conductivity. Presently, discrepancy exists in nanofluid thermal conductivity data in the literature, and enhancement mechanisms have not been fully understood yet. In the first part of this study, a literature review of nanofluid thermal conductivity is performed. Experimental studies are discussed through the effects of some parameters such as particle volume fraction, particle size, and temperature on conductivity. Enhancement mechanisms of conduct

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15

Fritzgerald, Claire Louise. "Forced-convection condensation heat-transfer on horizontal integral-fin tubes including effects of liquid retention." Thesis, Queen Mary, University of London, 2011. http://qmro.qmul.ac.uk/xmlui/handle/123456789/2353.

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Accurate and repeatable heat-transfer data are reported for forced-convection filmwise condensation of steam and ethylene glycol flowing vertically downward over two single, horizontal instrumented integral-fin tubes and one plain tube. Vapour-side, heat-transfer coefficients were obtained by direct measurement of the tube wall temperature using specially manufactured, instrumented tubes with thermocouples embedded in the tube walls. Both tubes had fin height of 1.6 mm and fin root diameter of 12.7 mm, with fin thickness and spacing of 0.3 mm and 0.6 mm, respectively for the first tube and 0.5

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16

Lin, Kuan-Ting. "Experimental and Computational Study of Novel Plate-Fin-Surfaces for Enhancing Forced Convection Heat Transfer in Compact Heat Exchangers." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1623166309984355.

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17

Wangdhamkoom, Panitan. "Characteristics of multimode heat transfer in a differentially-heated horizontal rectangular duct." Curtin University of Technology, Department of Mechanical Engineering, 2007. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=17353.

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This study presents the numerical analysis of steady laminar flow heat transfer in a horizontal rectangular duct with differential heating on the vertical walls. Three heating configurations: one uniform wall temperature (CS1) and two linearly varying wall temperature cases (CS2 and CS3) are analysed. The study considers the combined effects of natural convection, forced convection and radiation heat transfer on the overall heat transfer characteristics. Air, which is assumed to be a non-participating medium, is chosen as the working fluid. A computational fluid dynamics solver is used to solv

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18

Dehghannya, Jalal. "Mathematical modeling of airflow, heat and mass transfer during forced convection cooling of produce in ventilated packages." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115663.

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Forced convection cooling process is the most widely used method of cooling to extend shelf life of horticultural produce after harvest. However, heterogeneous cooling of produce inside different parts of ventilated packages is a serious problem. Therefore, it is essential to design packages that facilitate air circulation throughout the entire package to provide uniform cooling. Selection of appropriate combinations of air temperature and velocity for a given vent design is currently done largely by experimental trial and error approach. A more logical approach in designing new packages, to p

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19

Osborne, Rodney Layne. "An experimental determination of mixed and forced convection heat transfer coefficients in a modeled nuclear waste repository /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487759914762946.

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20

Diette, Christophe. "Measurement and analysis of forced convection phenomena in blade cooling channels." Valenciennes, 2003. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/c76547a4-820c-48f8-9717-ced740f0cb38.

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Dealing with gas turbine aircraft engines, the Turbine Entry Temperature (TET) is generally targeted as high as possible. Increasing this parameter leads to higher thermodynamic efficiency and power output and reduces the weight-to-thrust ratio and the Specific Fuel Consumption (SFC). Since the maximum permissible TET is determined by the temperature limitations of the turbine assembly, the choice of turbine material and the design of cooling systems applied to turbine blades are essential. This work reports both an experimental and numerical investigation on internal blade cooling cavities. V

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21

Van, der Merwe Nicola Mary. "Fully developed forced convection heat transfer and pressure drop in a smooth tube in the transitional flow regime." Diss., University of Pretoria, 2005. http://hdl.handle.net/2263/66251.

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Extensive work has been done on characterising convective heat transfer and pressure drop in smooth tubes in the laminar and turbulent flow regimes. However, little work was completed in the transitional flow regime. In all previous transitional studies, experiments that were conducted between the laminar and turbulent flow regimes were with mixed convection in the laminar flow regime and not in the forced convection flow regime. The secondary flow that occurs during mixed convection should most probably influence the characteristics in the transitional flow regime. It can therefore be expecte

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22

Roland, Jason Howard. "Forced Convection Over Flat and Curved Isothermal Surfaces with Unheated Starting Length." University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1418343439.

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23

Ahn, Hee Seok. "Heat transfer enhancement in single-phase forced convection with blockages and in two-phase pool boiling with nano-structured surfaces." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5869.

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The first study researched turbulent forced convective heat (mass) transfer down- stream of blockages with round and elongated holes in a rectangular channel. The blockages and the channel had the same cross section, and a distance equal to twice the channel height separated consecutive blockages. Naphthalene sublimation experiments were conducted with four hole aspect ratios (hole-width-to-height ratios) and two hole-to-blockage area ratios (ratios of total hole cross-sectional area to blockage area). The effects of the hole aspect ratio, for each hole-to-blockage area ratio, on the local hea

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24

Mlcak, Justin Dale. "Simulation of three-dimensional laminar flow and heat transfer in an array of parallel microchannels." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1671.

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25

Astrouski, Ilya. "Polymeric Hollow Fiber Heat Exchanger Design." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-240499.

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This Ph.D. thesis is focused on theory and experimental investigations developing of new knowledge about polymeric hollow fiber heat exchanger (PHFHE). The state-of-the-art study of plastic heat exchangers shows that their usage is limited by several niches where their advantages significantly dominates, or where the use of non-plastic competitors is not impossible. On the other hand, plastic heat exchangers (and PHFHEs in particular) are devices of increasing interest. It is shown that use of small tubes (fibers) allows PHFHEs to be more competitive than conventional plastic heat exchangers.

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26

Wright, Lesley Mae. "Experimental investigation of turbine blade platform film cooling and rotational effect on trailing edge internal cooling." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1826.

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27

Ahmed, Nisaar. "Thermo-fluid modelling of electrical generator frames under forced convection in an oscillating water column environment." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31363.

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This PhD involved computational fluid dynamic simulations of finned generators cooling under forced convection in an oscillating water column environment. Various design changes to the upstream Wells turbine and its effect on the consequent cooling of the generator were investigated. Simulations were run in steady-state to obtain an initial condition, thereafter, unsteady simulations revealed a steadying of heat transfer over the course of multiple blade rotation cycles. This justified the use of steady-state for the remaining simulations over a range of flow coefficients. The results revealed

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28

Alves, Thiago Antonini. "Resfriamento conjugado de aquecedores discretos em canais." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264147.

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Orientador: Carlos Alberto Carrasco Altemani<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-16T09:22:29Z (GMT). No. of bitstreams: 1 Alves_ThiagoAntonini_D.pdf: 12931422 bytes, checksum: b3858d05581229381f7d14684d29e979 (MD5) Previous issue date: 2010<br>Resumo: A transferência de calor conjugada por convecção forçada e condução de três aquecedores 2D montados rentes ou protuberantes na placa inferior (substrato) de um canal de placas paralelas foi investigada numericamente em regime permanente. Uma taxa unifor

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Loiola, Bruna Rafaella 1987. "Resfriamento conjugado de aquecedores protuberantes em um duto retangular." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265971.

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Orientador: Carlos Alberto Carrasco Altemani<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-24T09:07:23Z (GMT). No. of bitstreams: 1 Loiola_BrunaRafaella_M.pdf: 2801156 bytes, checksum: 0bbef2296c5a3a938f63b6246554ab2d (MD5) Previous issue date: 2013<br>Resumo: A transferência de calor conjugada por convecção forçada-condução de dois aquecedores protuberantes montados na parede inferior (substrato) de um duto retangular foi investigada através de medidas experimentais em laboratório. Potência elétrica era

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30

Gurer, Turker. "Numerical Investigation Of Incompressible Flow In Grooved Channels- Heat Transfer Enhancment By Self Sustained Oscillatins." Phd thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/12604891/index.pdf.

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In this study, forced convection cooling of package of 2-D parallel boards with heat generating chips is investigated. The main objective of this study is to determine the optimal board-to-board spacing to maintain the temperature of the components below the allowable temperature limit and maximize the rate of heat transfer from parallel heat generating boards cooled by forced convection under constant pressure drop across the package. Constant heat flux and constant wall temperature boundary conditions on the chips are applied for laminar and turbulent flows. Finite elements method is used to

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31

Bulliard-Sauret, Odin. "Étude expérimentale de l'Intensification des transferts thermiques par les ultrasons en convection forcée." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAI034/document.

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Le but de l'étude présentée dans ce mémoire de thèse est de caractériser localement l'intensification des transferts thermiques observée le long d'une plaque chauffante lorsqu'elle est soumise à des ultrasons. Ces derniers induisent des effets hydrodynamique dans les fluides qu'ils traversent. Premièrement, la cavitation acoustique, qui permet de produire de forts effets mécaniques dans les liquides. Viens ensuite le courant acoustique qui génère une écoulement convectif sous l'action d'une dissipation visqueuse de l’énergie acoustique. Ce travaille à permis de mettre en évidence la relation e

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32

Youcef-Ali, Sabri. "Etude numérique et expérimentale des séchoirs solaires indirects à convection forcée : Application à la pomme de terre." Valenciennes, 2001. https://ged.uphf.fr/nuxeo/site/esupversions/7db5b7f1-e247-4d7f-9a14-5040200b9cb4.

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Nous avons développé un code de calcul permettant de simuler le comportement d'une chaine énergétique (insolateur-séchoir) fonctionnant en convection forcée pour des applications au séchage de produits agro-alimentaires. L’insolateur plan, relié à l'armoire de séchage, est à simple passe arrière, la veine d'air mobile pouvant être munie d'ailettes permettant d'améliorer les performances de ce capteur. Le séchoir est une armoire en bois comportant quatre grilles superposées, sur lesquelles le produit a séché et disposées en lits de rondelles. Dans le modèle théorique décrivant son comportement,

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33

Racine, Evan Michael. "Experimental Study - High Altitude Forced Convective Cooling of Electromechanical Actuation Systems." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1450286609.

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34

Ren, Tieying. "An experimental study of the local mean and turbulent flow field affecting forced convection heat transfer for finned tubes in cross flow." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ39872.pdf.

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35

Metwally, Hossam Eldin Mahmoud Hassan. "A computational study of enhanced laminar forced convection heat transfer to Newtonian and non-Newtonian fluid flows in sinusoidal corrugated-plate channels." Cincinnati, Ohio : University of Cincinnati, 2002. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1022762582.

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36

Bishara, Fady. "Numerical Simulation of Fully Developed Laminar Flow and Heat Transfer in Isothermal Helically Twisted Tubes with Elliptical Cross-Sections." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1291146958.

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Gupta, Abhishek. "Experimental and theoretical analysis of single-phase convective heat transfer in channel with resistive heater and thermoelectric modules for hydronic cooling and heating device." Cincinnati, Ohio : University of Cincinnati, 2009. http://www.ohiolink.edu/etd/view.cgi?acc_num=ucin1236202446.

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Thesis (M.S.)--University of Cincinnati, 2009.<br>Advisors: Dr. Michael Kazmierczak PhD (Committee Chair), Dr. Milind A. Jog PhD (Committee Member), Dr. Sang Y. Son PhD (Committee Member). Title from electronic thesis title page (viewed April 26, 2009). Includes abstract. Keywords: Peltier cooling; developing internal turbulent forced convection; heat pump and coefficient-of-performance. Includes bibliographical references.

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Avelar, Ana Cristina. "Analise teorica e experimental da tranferencia de calor em placas de circuito impresso formando canais verticais abertos." [s.n.], 1997. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263433.

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Orientador: Marcelo Moreira Ganzarolli<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-07-22T20:18:14Z (GMT). No. of bitstreams: 1 Avelar_AnaCristina_M.pdf: 5757345 bytes, checksum: ab66436b252ec7b8b48d4756dd9e7f42 (MD5) Previous issue date: 1997<br>Resumo: Os constantes avanços tecnológicos em eletrônica e informática tem tornado os sistemas eletrônicos cada vez mais compactos, aumentando-se a quantidade de calor a ser removida dos componentes e placas de circuito impresso. Por este motivo, atualmente são ex

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39

Watel, Barbara. "Etude des échanges convectifs sur un cylindre aileté en rotation, soumis a un courant d'air parallèle aux ailettes." Valenciennes, 1997. https://ged.uphf.fr/nuxeo/site/esupversions/29267151-660f-45b9-af69-34482a8dce42.

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L'évaluation expérimentale des échanges convectifs avec l'air est faite sur des ailettes circulaires d'un arbre en rotation à vitesse uniforme et soumises ou non à un courant d'air parallèle à leurs faces. Un banc d'essais a été conçu pour mesurer, par thermographie infrarouge, l'évolution temporelle des températures suivant un rayon d'une ailette durant son refroidissement, cette dernière ayant été préalablement chauffée. Une analyse théorique des phénomènes thermiques se produisant dans une ailette, en régime transitoire, permet de déterminer le coefficient d'échange moyen de celle-ci avec l

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40

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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Hudjetz, Stefan. "Experimental investigation of heat exchange between thermal mass and room environments." Thesis, De Montfort University, 2012. http://hdl.handle.net/2086/9021.

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The different technologies of passive cooling concepts have to rely on a good thermal coupling between a building's thermal mass and indoor air. In many cases, the ceiling is the only surface remaining for a good coupling. Further research is necessary to investigate discrepancies between existing correlations. Therefore, the overall aim of the work described in this thesis is the investigation of heat transfer at a heated ceiling in an experimental chamber. Acoustic baffles obstruct the surface of the ceiling and impede heat transfer. However, there is nearly no published data about the effec

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42

Tekin, Bilgehan. "Experimental Investigation Of R134a Flow In A 1.65 Mm Copper Minitube." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612952/index.pdf.

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This thesis investigates the refrigerant (R-134a) flow in a minitube experimentally. The small scale heat transfer is a relatively new research area and has been in favor since the end of 1970&rsquo<br>s. Refrigerant flow in mini- and microscale media is a potential enhancement factor for refrigeration technology in the future. For the forthcoming developments and progresses, experimental studies are invaluable in terms of having an insight and contributing to the establishment of infrastructure in the field in addition to leading the numerical and theoretical approaches. The studies in the li

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片峯, 英次, Eiji KATAMINE, 恭平織田, Kyohei ODA, 秀幸畔上 та Hideyuki AZEGAMI. "温度分布を規定する強制熱対流場の形状同定". 日本機械学会, 2006. http://hdl.handle.net/2237/12165.

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Souza, Edilson Guimarães de. "Análise experimental e numérica de convecção forçada em arranjo de obstáculos dentro de canal /." Ilha Solteira : [s.n.], 2010. http://hdl.handle.net/11449/88857.

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Resumo: O objetivo deste trabalho é a análise numérica e experimental de escoamento viscoso, incompressível, permanente, com transferência de calor, em um canal estreito contendo um arranjo de obstáculos retangulares. A análise experimental envolveu determinação de coeficiente de transferência de calor médio bem como o número de Nusselt médio e medidas de temperatura em esteira térmica para comparação com os resultados obtidos por simulação numérica. Para a análise numérica usamos o programa comercial de mecânica dos fluidos e transferência de calor computacional ICEPAK®. Verificamos que quant

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Agartan, Yigit Ata. "Experimental Comparison Of Different Minichannel Geometries For Use In Evaporators." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614095/index.pdf.

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This thesis investigates the refrigerant (R-134a) flow in three minichannels having different geometries experimentally. During the last 40 years heat transfer in small scales has been a very attractive research area. Improvements in heat transfer in the refrigeration applications by means of usage of micro/minichannels provide significant developments in this area. Also it is known that experimental studies are very important to constitute a database which is beneficial for new developments and research. During the two-phase flow experiments conducted in the minichannels, low mass flow rates

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Govinder, Kuvendran. "Theoretical analyses and design, construction and testing of a flow loop for the study of generalised forced and natural convection boiling heat transfer phenomena on typical light-water nuclear reactor fuel pin configurations." Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/71554.

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In a worldwide pursuit for more Accident Tolerant nuclear Fuel (ATF), the quest to obtain and certify alternative nuclear fuel cladding tubes for light-water nuclear power reactors is still a key challenge. One of the facets in this program to develop more ATF is the heat transfer evaluation between the various proposed clad tubes manufactured from suitable replacement materials and the current problematic zirconium-alloy based clad tubes used in nuclear power reactors. For the heat transfer analysis, the accurate measurement of the temperature on the heat transfer surface of heated tubes to b

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Alshawaf, Hussain M. J. A. A. M. A. "A Novel Thermal Method for Pipe Flow Measurements Using a Non-invasive BTU Meter." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/101528.

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This work presents the development of a novel and non-invasive method that measures fluid flow rate and temperature in pipes. While current non-invasive flow meters are able to measure pipe flow rate, they cannot simultaneously measure the internal temperature of the fluid flow, which limits their widespread application. Moreover, devices that are able to determine flow temperature are primarily intrusive and require constant maintenance, which can shut down operation, resulting in downtime and economic loss. Consequently, non-invasive flow rate and temperature measurement systems are becoming

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Aliev, Ruslan. "CFD Investigation of Heat Exchangers with Circular and Elliptic Cross-Sectional Channels." Cleveland State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=csu1452678890.

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Sousa, Reginaldo Ribeiro de. "Análise numérica e experimental na determinação da potência térmica dissipada em componentes eletrônicos /." Ilha Solteira : [s.n.], 2008. http://hdl.handle.net/11449/94552.

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Orientador: Amarildo Tabone Paschoalini<br>Banca: Luiz de Paula do Nascimento<br>Banca: Marcelo Moreira Ganzarolli<br>Resumo: Os objetivos deste trabalho são determinar a potência térmica dissipada dos componentes eletrônicos de forma experimental e verificar a eficácia do método através de simulações numéricas computacionais utilizando o software comercial ANSYS. O Software ANSYS foi usado como ferramenta de Dinâmica de Fluidos Computacional neste trabalho. Para a realização deste trabalho um ensaio experimental foi executado a fim de obter alguns dados para o cálculo da potência térmica diss

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Ferraz, Bastos José Luis. "Extension de la méthode nodale à la modélisation des transferts couples conduction/convection dans un canal : application à la thermique du bâtiment et aux cartes électroniques." Poitiers, 1988. http://www.theses.fr/1988POIT2310.

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Modelisation des transferts couples conduction/convection, dans une configuration ou apparait au moins un ecoulement force de type "canal". Les parois peuvent avoir une structure heterogene, voire etre soumises a des sources de chaleur localisees. Notre demarche a consiste dans un premier temps a batir des solutions de reference en associant la methode nodale et une methode aux differences finies. Une extension a alors ete apportee a la methode nodale. De facon a permettre l'application de la methode nodale a la modelisation fine de la thermique fluide, un reseau special a ete developpe. On pe

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