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Dissertations / Theses on the topic 'Heating processes'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Calay, Rajnish Kaur. "Electromagnetic heating processes : analysis and simulations." Thesis, Cranfield University, 1994. http://dspace.lib.cranfield.ac.uk/handle/1826/9846.

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Electromagnetic heating (EMH) processes are being increasingly used in the industrial and domestic sectors, yet they receive relatively little attention in the thermal engineering domain. Time-temperature characteristics in EMH are qualitatively different from those in conventional heating techniques due to the additional parameters (viz dielectric properties of the material, size and shape of the product and process frequency). From a unified theory perspective, a multi-purpose model has been developed in order to obtain the heating characteristics for an arbitrary processing situation. Theor

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2

Graham, James. "Heating and transport processes in the intracluster medium." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611366.

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3

Giordano, Laura. "Theoretical and experimental analysis of microwave heating processes." Doctoral thesis, Universita degli studi di Salerno, 2015. http://hdl.handle.net/10556/1966.

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2013 - 2014<br>Thermal processing is the major processing technology in the food industry and its purpose is to extend the shelf life of food products without compromising food safety. Apart from the positive effect of food treatments, such as the inactivation of pathogens, there are also some limitation by way of partial destruction of quality attributes of products, especially heat-labile nutrients, and sensory attributes. The technological revolution, nutritional awareness, and continuous demand of the new generation have necessitated search for new or improved food processing technolo

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4

Orellana, Feliciano Lynette E. "Immobilized enzymes time temperature indicators for dielectric pasteurization processes /." Online access for everyone, 2004. http://www.dissertations.wsu.edu/Dissertations/Spring2004/l%5Forellana%5F042204.pdf.

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5

Nuga, Hideo. "Kinetic modeling of the heating processes in tokamak plasmas." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/147360.

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6

Wright, M. J. "An investigation of heating methods for the rotational moulding of plastics." Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368531.

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7

Doni, Angelo. "Processes and technologies for crystalline silicon production for photovoltaic applications." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3423044.

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Photovoltaic solar energy is considered one of the most versatile and promising renewable energy technology. It is based on the use of an infinite source of energy: the sun. The photovoltaic energy conversion process is emission free and the total environmental footprint of photovoltaic energy is very low. Crystalline silicon is the most widely diffused technology among all the photovoltaic for its high efficiency, a well-established manufacturing process that permit the adoption of scale economies and an overall low levelized cost of energy. Along the PV production chain research activities

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Merrygold, Egil W. "An investigation into differential heating, contact pressure and friction in metal forming processes." Thesis, University of Bath, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403356.

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9

Bressan, Fernando. "Multiphysics modeling for electroheat processes." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424122.

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Microwave heating is a process widely used for industrial processes, scientific applications, medical treatments, as well as for household appliances. The advantage of this technology is mainly related to the velocity of this heating process, important factor in order to meet the needs of the market. In fact, the heat sources are localized inside the load under heating, so reducing the process time. However, because of the involved frequencies and, sometimes, due to the costs of the devices involved in such processes, generally the quality (uniformity) of the microwave heating is pretty pena

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Clucas, D. A. V. "A theoretical and experimental investigation into the variation of process parameters in the laser heating, melting and welding processes." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366419.

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11

Gibbins, Jonathan Robert. "Investigation of primary coal pyrolysis processes using a variable heating rate wire-mesh apparatus." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/11278.

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12

REINPOLD, LASSE MATTHIAS. "Analysis of Heating Processes for the Production of Bipolar Plates in PEM Fuel Cells." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-289622.

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Polymer electrolyte membrane fuel cells (PEMFCs) are a promising alternative to combustion engines and batteries in vehicles. PEMFCs are more efficient than combustion engines, and cars powered by PEMFCs tend to have longer ranges than battery powered cars and has a short fuelling time. To gain significant market shares, the costs of PEMFCs need to be reduced. This work aims to achieve this by improving the production process of bipolar plates, which significantly contribute to the total cost of fuel cells. In conventional production methods bipolar plates are formed by stamping at room temper

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13

Chen, Hao. "Computer simulation of combined microwave and water heating processes for packaged foods using finite difference time domain method." Online access for everyone, 2008. http://www.dissertations.wsu.edu/Dissertations/Spring2008/h_chen_031008.pdf.

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14

Bolliger, Christof. "Bioremediation of a heating oil-contaminated aquifer : quantification of processes by chemical, biological, and stable isotope analyses /." [S.l.] : [s.n.], 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13737.

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15

Wikström, Patrik. "A study of surface temperature and heat flux estimations in heating processes by solving an Inverse Heat Conduction Problem." Licentiate thesis, KTH, Materials Science and Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-605.

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<p>The topic of this thesis is estimation of the dynamic changes of the surface temperatureand heat flux during heating processes by using an inverse method. The local transient surface temperature and heat flux of a steel slab are calculated based on measurements in the interior of the slab.</p><p>The motivations for using an inverse method may be manifold. Sometimes, especially in the field of thermal engineering, one wants to calculate the transient temperature or heat flux on the surface of a body. This body may be a slab, or billet in metallurgical applications. However, it may be the cas

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Wikström, Patrik. "A study of surface temperature- and heat flux estimations in heating processes by solving an Inverse Heat Conduction Problem /." Stockholm, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-605.

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17

Xie, Jianfei. "Development of a new kinetic model for the analysis of heating and evaporation processes in complex hydrocarbon fuel droplets." Thesis, University of Brighton, 2013. https://research.brighton.ac.uk/en/studentTheses/866b0ab3-7dcc-44e4-8334-57d56b73cce3.

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This work is concerned with the development of a new quantitative kinetic model for the analysis of hydrocarbon fuel droplet heating and evaporation, suitable for practical engineering applications. The work mainly focuses on the following two areas. Firstly, a new molecular dynamics (MD) algorithm for the simulation of complex hydrocarbon molecules, with emphasis on the evaporation/condensation process of liquid n-dodecane (C12H26), which is used as an approximation for Diesel fuel, has been developed. The analysis of n-dodecane molecules has been reduced to the analysis of simplified molecul

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Hardy, Sam. "The 23-26 September 2012 UK floods : influence of diabatic processes and upper-level forcing on cyclone development." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/the-2326-september-2012-uk-floods-influence-of-diabatic-processes-and-upperlevel-forcing-on-cyclone-development(7331bff8-e536-4446-bacf-701aca158c2b).html.

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The thesis comprises two separate journal articles that together form a coherent body of work. In this thesis, the key physical processes responsible for the 23-26 September 2012 UK floods are investigated using a case study approach. The cyclone responsible for the floods developed near the Azores on 20¬-22 September following the interaction between an equatorward-moving potential vorticity (PV) streamer and tropical storm Nadine. Convectively-driven latent heat release associated with the developing cyclone reduced upper-level PV and resulted in the fracture of the PV streamer into a discre

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19

Bergseije, Victor. "Effects of Heat Transfer Fluid from District Heating Networks on Activated Sludge : A respirometric analysis using a dilution series to assess disruption of biological treatment processes in wastewater treatment facilities." Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-34038.

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District heating has a long standing tradition in Sweden and today it is the most common way of producing and transporting heat. A District heating system (DH system) is divided into three parts: a production facility, distribution network (DH network) and one more heat stations. The heat produced in the facilities is distributed to the customers via a heat transfer medium, usually water (DH water), in piping networks that make up the DH network. The heat is transferred to the customers via the heat exchanger at which point they can use it as heated tap water or for heating purposes. The DH ne

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20

Stauber, Alfredsson Malin. "Effects of Different Fuels on Combustion Boiler Processes : The analysis of alternative fuel mixtures." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231565.

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The objective of this study is to investigate the eect of dierent fuels on two uidized bed boiler systemsat the energy company Soderenergi's site in Igelsta, called IKV and IGV P3. Today, recovered wastewood (RWW) is the major fuel share fed into the boilers. However, with an insecure fuel supply in thefuture, other fuel types must be considered. Based on knowledge from previous fuel usage in the boilers,an evaluation of how other potential fuel mixtures may eect the operation is conducted. The additionalfuels considered in the fuel blends are; stem wood chips, cutter shavings, solid recycled

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21

Kelly, Patrick. "Evaluation of Land-Atmosphere Interactions in Models of the North American Monsoon." Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_theses/118.

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Improving diurnal errors in surface-based heating processes in models might be a promising step towards improved seasonal simulation of the North American Monsoon (NAM). This study isolates model errors in the surface energy budget and examines diurnal heating implications for seasonal development of the NAM 500hPa anticyclone and 850-500hPa thickness ridge using observations and multi-model output. Field data from the 2004 North American Monsoon Experiment (NAME) and satellite estimates are used to evaluate land-atmosphere interactions in regional and global models as part of the North Amer

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22

Skillinghaug, Bobo. "Palladium(II)-Catalysed Heck and Addition Reactions : Exploring Decarboxylative and Desulfitative Processes." Doctoral thesis, Uppsala universitet, Avdelningen för organisk farmaceutisk kemi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-304746.

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Palladium complexes have the ability to catalyse cross-coupling of two organic moieties through the formation of transient metal-carbon bonds, thus bringing them closer to each other to facilitate the formation of a new bond. Palladium-catalysed coupling reactions are one of the most important carbon-carbon forming reactions available to organic chemists and many of these reactions rely on the reactivity of aryl-palladium complexes. The investigation of new aryl-palladium precursors is thus of great interest, especially as more sustainable and economic methods can be developed. This thesis des

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23

Duprat-Oualid, Sylvia. "Évolution thermique et mécanique des zones de cisaillement : approche analytique, numérique et confrontation aux données de terrain." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S128/document.

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Les zones de cisaillement constituent des objets structuraux communs de la lithosphère. À grande échelle, elles sont le siège principal des déplacements entre plaques tectoniques, accommodant de grandes quantités de déformation. La compréhension de leur comportement mécanique dans le temps et l'espace est donc essentielle pour la connaissance générale de la dynamique de la lithosphère. La température joue un rôle majeur sur la loi de comportement rhéologique qui caractérise le domaine ductile (en profondeur), réduisant alors efficacement la résistance mécanique. Chaque roche possède en outre d

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24

Тарельник, В. Б., И. Е. Волошин та Т. П. Волошко. "Повышение качества поверхностных слоев валов интегрированными технологиями (Часть 2. Влияние ЭЭЛ+ППД на остаточные напряжения и усталостную прочность)". Thesis, Сумский государственный университет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66728.

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Формирование покрытий методом ЭЭЛ связано с высокотемпературным воздействием источника энергии на наносимый материал и подложку, а также с образованием различных фаз в поверхностных слоях при взаимодействии наносимого и обрабатываемого материалов. Процессы нагрева и охлаждения материала электродов в зоне импульсного разряда обусловливают появление в слоях, полученных ЭЭЛ, значительных напряжений.

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Ertug, Muzeyyen Oya. "Computer Aided Design And Simulation Of Year Around Air Conditioning-comfort Application." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610356/index.pdf.

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The aim of this thesis is to develop a computer program to design and simulate air conditioning-comfort application of a selected building, for a year period, on an hourly basis. In order to carry out this study, a computer program named AHUSIM.m, is prepared with Matlab computing language. The design and simulation procedure starts with preparing the inputs like indoor, outdoor design states, zone cooling and heating loads, along with the general data for conditioning-comfort equipment. The program, in light of these input data, performs the plotting of the psychrometric processes -including

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26

Belock, Keith Allan. "An energy audit manual for small manufacturing companies with a case study of Maugus Manufacturing Company." Ohio : Ohio University, 1995. http://www.ohiolink.edu/etd/view.cgi?ohiou1179851925.

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27

Neuvonen, M. (Markus). "Modeling and short term operational optimization of Kemi district heating system." Master's thesis, University of Oulu, 2015. http://urn.fi/URN:NBN:fi:oulu-201504021260.

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District heating systems are projected to face significant new challenges in terms of increasing requirements in system dynamics handling, disturbance rejection and system efficiency. Therefore, a systematic approach to network development is required. Complexity is a defining characteristic of district heating systems. Piping network includes hundreds of consumers and usually dozens of loops are present in the pipe network. Exact modeling of such a complex system is a difficult task and model-based control approaches are only starting to emerge. During high demand separate supplementary power

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28

Tupcová, Tereza. "Posouzení chladícího a topného faktoru reálného TČ." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240188.

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The diploma thesis deals with the issue of replacement of non-ecological refrigerant R22 according to the requirements of relevant juristic regulations and of subsequent influence of this replacement to the efficiency of air conditioning systems. The theoretical part is focused on proceeding processes in thermodynamic cycles and during heat transfer, then determines calculation of cooling and heating factor in context with experimental measurement. The experimental measurement utilizes to the assessment of operation of heat pump after refrigerant replacement and it is source for the composion

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Buta, Florin. "Phase evolution and superconducting properties of Nb-Al superconductors processed by a rapid heating/quenching method." Connect to this title online, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1041359314.

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Thesis (Ph. D)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xiv, 124 p.: ill. Includes abstract and vita. Advisors: Edward W. Colllings, Robert L. Snyder, Dept. of Materials Science and Engineering. Includes bibliographical references (p. 114-124).

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Devès, Maud. "Continental magmatism by shear heating in "Process Zones" : at geometric complexities on fault systems." Paris, Institut de physique du globe, 2010. http://www.theses.fr/2010GLOB0004.

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31

Qin, Jianbo. "Experimental investigation of bubble behaviours in domestic heat pump water heating system." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/17662.

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The growing awareness of global warming potential has internationally aroused interest and demand in reducing greenhouse gas emissions produced by human activity. Each year, the UK consumes a significant amount of energy for residential and industrial space heating and domestic hot water production. At present, gas boilers are mostly installed in the domestic water heating which contributes significantly to excessive CO2 emissions and consumption of primary energy resources. However, air-source heat pump system has higher performance efficiency comparing to the traditional gas boiler, which ca

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32

Tatsidjodoung, Parfait. "Procédé de stockage d'énergie solaire thermique par adsorption pour le chauffage des bâtiments : modélisation et simulation numérique." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENA012/document.

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Les systèmes de stockage de chaleur par sorption (SSCS) ouvrent de nouvelles perspectives dans l'exploitation de l'énergie solaire pour le chauffage des bâtiments résidentiels. En effet, ces systèmes sont très prometteurs dans la mesure où ils permettent un stockage de chaleur sur de longues périodes (le stockage est réalisé sous forme de potentiel chimique) et offrent des densités énergétiques importantes (jusqu'à 230 kWh/m3 de matériau en moyenne) en comparaison aux systèmes classiques comme le stockage par chaleur sensible (qui, pour le cas de l'eau, dispose d'une densité énergétique moyenn

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Kersting, Daniel de Freitas. "Cura de compósitos de sistemas epóxi via irradiação de micro-ondas." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-19032015-172755/.

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De modo geral, os ciclos de cura para resina epóxi demandam algumas horas e elevadas temperaturas. Em busca de novas soluções para a otimização de processos sem perda de qualidade, bem como a economia de energia, diversos processos de cura de resina epóxi não convencionais foram desenvolvidos ao longo dos anos. O uso de irradiação de micro-ondas teve início após a Segunda Guerra Mundial, com a invenção do RADAR. A radiação de micro-ondas é uma radiação não-ionizante, com bom poder de penetração e boa transferência de calor em materiais absorvedores, ou materiais com cargas absorvedoras. A freq

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34

Cordes, Brian G. "Modeling-based minimization of time-to-uniformity in microwave heating systems." Link to electronic thesis, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-050607-202823/.

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Thesis (M.S.) -- Worcester Polytechnic Institute.<br>Keywords: uniformity of heating; optimization; optimal process; modeling; microwave pulsing; microwave heating; FDTD method; coupled problem. Includes bibliographical references (leaves 50-59).

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35

Scott, Grant. "Microwave pretreatment of a low grade copper ore to enhance milling performance and liberation." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/123.

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Mykhailenko, V., and A. Vartansan. "Calculatoin of economic losses of unintentionally produced persistent organic pollutants (POPs) from centralized heating in Odessa." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45338.

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Persistent Organic Pollutants (POPs) are a set of toxic chemicals that are persistent in the environment and able to last for several years before breaking down. POPs circulate globally and chemicals released in one part of the world can be deposited at far distances from their original source through a repeated process of evaporation and deposition. This makes it very hard to trace the original source of the chemical [1].

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Muñoz, Juan Jorge. "Thermo-hydro-mechanical analysis of soft rock. Application to a large scale heating test and large scale ventilation test." Doctoral thesis, Universitat Politècnica de Catalunya, 2007. http://hdl.handle.net/10803/6244.

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Esta Tesis está dirigida al análisis teórico y experimental de problemas acoplados Termo-Hidro Mecánico (THM) que se desarrollan en formaciones geológicas profundas destinadas al almacenamiento de residuos radiactivos de alta actividad. En las últimas décadas, han sido estudiadas las formaciones arcillosas para ser utilizadas como barreras geológicas debido a su reducida conductividad hidráulica. La degradación de las rocas arcillosas producida por efectos de temperatura y por efectos de variación en el grado de saturación, es un factor de fundamental importancia, que es actualmente investigad

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Costa, Fernando Corner da. "Gases combustíveis como alternativas à eletrotermia em aquecimento direto e calor de processo no setor industrial brasileiro." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/86/86131/tde-13012014-164600/.

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Este trabalho tem por objetivo analisar as perspectivas dos gases combustíveis como energia final para a obtenção de energia útil, em aquecimento direto (AD) e calor de processo (CP), identificando e quantificando potenciais como alternativa da eletrotermia. São comparados dois panoramas na avaliação das economias de energia primária pela substituição da eletrotermia: o primeiro considerando que a energia substituída oriunda de energéticos do parque gerador; e o segundo levando em conta que a redução se refletiu nas termelétricas. Para atingir este objetivo, o trabalho se inicia com uma revisã

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Pilch, Jan. "Studium funkčních vlastností tenkých vláken NiTi pro aplikace v smart strukturách a textiliích." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-233961.

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PhD thesis focuses the field of textile application of modern functional materials, namely metallic shape memory alloys with unique thermomechanical properties deriving from martensitic transformation in solid state. Particularly, it deals with the development of a nonconventional thermomechanical treatment of thin NiTi filaments via Joule heating by electric current and related basic research involving thermomechanical testing and modeling of functional properties of the filaments, investigation of martensitic transformations and deformation processes in NiTi and investigation of the fast rec

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Ali, Abubeker Yimam. "Understanding the effects of mineralogy, ore texture and microwave power delivery on microwave treatment of ores." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/3988.

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Thesis (PhD (Process Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Previous work has shown that microwave heating of mineral ores induces fractures around grain boundaries due to the differences in absorption of microwaves and the resulting differential thermal expansion among the various mineral phases in the ore particles. As a consequence, this reduces the energy required in subsequent grinding and enhances liberation of valuable minerals. In this study, first, the influences of different variables on bulk strength reduction of microwave treated ores have been

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Santos, Vitor Luiz Rigoti dos. "Análise experimental dos processos de transferência de calor aplicados à concentração solar." Universidade Federal do Espírito Santo, 2008. http://repositorio.ufes.br/handle/10/6243.

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Made available in DSpace on 2016-12-23T14:08:12Z (GMT). No. of bitstreams: 1 Vitor Luiz Rigoti dos Anjos.pdf: 1989527 bytes, checksum: ff87f9a6cd0a1d2d7314336dc8689bf7 (MD5) Previous issue date: 2008-07-28<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Having in mind the necessity to pump heavy crude oil from notoriously sunny regions of Brazil (northern Brazil regions general speaking or northern Espirito Santo state specifically), the utilization of solar radiation appears as an alternative thermal source to heat on-shore pipelines and storage tanks. The present work exh

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Ernst, Sabrina. "Studies of laser brazing with regard to the quality influencing parameters." Thesis, Loughborough University, 2015. https://dspace.lboro.ac.uk/2134/17620.

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Laser joining processes, such as brazing and welding, are a common application in industry, especially in the automotive industry. These processes are the key to lightweight and efficient design with regard to the automotive industry. There, laser brazing is used mainly for visible joints due to the superior paint adhesion and surface roughness of brazed joints compared to welds. As laser brazing is applied in the automotive industry without using any fluxes or shielding gas, this leads to a difficulty in maintaining and ensuring the quality of brazed joints.

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Håkansson, Andrea, and Petra Andersson. "En studie över effektiviseringsmöjligheter av fjärrvärmeinstallationer i småhus." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Industriell organisation och produktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-24003.

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Syfte: Syftet med examensarbetet är att undersöka möjligheter till effektivisering av fjärrvärmeinstallationer i småhus med hjälp Lean. Detta har gjorts genom att besvara de tre följande frågeställningarna: Hur ser en fjärrvärmeinstallation i småhus ut i dagsläget? Vilka slöserier går att identifiera i processen för fjärrvärmeinstallation i småhus? Hur kan slöserier i processen för fjärrvärmeinstallation i småhus minskas? Metod: För att uppfylla examensarbetets syfte har en fallstudie genomförts på Jönköping Energi som är en leverantör av fjärrvärme. Där har intervjuer och dokumentationsstudi

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Alwaer, Ayad Almakhzum Mohamed. "A prototype desalination system using solar energy and heat pipe technology." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2455.

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Thesis (DTech (Mechanical Engineering))--Cape Peninsula University of Technology, 2016.<br>The water desalination process needs large quantities of energy, either directly from fossil fuel or electricity from the national grid. However, these sources of energy significantly contribute to problems such as global warming in addition to creating a drain on the economy, due to their high cost. This dissertation is a description of the research undertaken with the aim of producing a water desalination prototype; a novel approach that was designed using state-of-the-art solar water heating equipmen

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Benamara, Nassima. "Intensification de procédés par chauffage micro-ondes pour la chimie verte." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMIR13.

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L'objet de cette thèse est la conception, le développement et la caractérisation d'un réacteur micro-ondes en continu pour mener tout type de réactions chimiques à températures élevées de manière fiable et dans des conditions optimisées. Le développement de ce réacteur a tout d'abord nécessité la caractérisation diélectrique et magnétique des matériaux et milieux utilisés. La simulation numérique a ensuite été utilisée afin de prédire les distributions de champ et température au sein des matériaux. L'interaction entre les ondes et les différents milieux a été finement étudiée. Elle démontre no

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Araújo, Magno Medeiros de. "Caracterização de um modelo numérico utilizando FDTD para uso em processos de aquecimento por micro-ondas em cavidades multimodo." Universidade Federal Rural do Semi-Árido, 2015. http://bdtd.ufersa.edu.br:80/tede/handle/tede/527.

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Made available in DSpace on 2016-08-31T13:33:42Z (GMT). No. of bitstreams: 1 MagnoMA_DISSERT.pdf: 2362994 bytes, checksum: 76e766a8ab7d1f6010a083adf3877530 (MD5) Previous issue date: 2015-01-21<br>The microwave heating is largely used on industry, for treatment of ores and wood drying, and on food production. Besides this industry use, researches applied to cancer cells treatment, demonstrates that the microwave heating is more effective than regular procedures, such as, chemotherapy and radiotherapy, because it is a directional action and does not presents the same side effects amount. This

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Groenewald, Nico Albert. "Measuring the dielectric properties of crushed copper ore." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5230.

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Thesis (MScEng (Process Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Previous work has shown that microwave heating of mineral ores induces micro cracks within the ore structure, which can be attributed to the difference in the adsorption of microwaves amongst the different mineral phases. This reduces the energy required during subsequent grinding and enhances the liberation of valuable minerals. In order to design microwave applicators for this purpose, knowledge of the effective dielectric properties of the crushed ore is required. Of particular interest is the

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Constant, Thiéry. "Le séchage combiné convection-micro-ondes : modelisation-validation-optimisation." Vandoeuvre-les-Nancy, INPL, 1992. http://docnum.univ-lorraine.fr/public/INPL_T_1992_CONSTANT_T.pdf.

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Ce travail est consacré à l'étude du séchage combiné convection-micro-ondes, le matériau choisi pour l'étude étant un béton cellulaire. Il comporte une partie théorique et une partie expérimentale. D’un point de vue théorique, deux points sont plus particulièrement discutés: la formulation du terme source volumique d'énergie et la modélisation des transferts de chaleur et de masse avec prise en compte du gradient de pression totale de la phase gazeuse. D’un point de vue expérimental, des mesures de perte de masse, de la quantité d'eau évacuée sous forme liquide, des températures et pressions i

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Han, Lei. "IMPROVEMENT OF SILICON OXIDE QUALITY USING HEAT TREATMENT." UKnowledge, 2012. http://uknowledge.uky.edu/ece_etds/5.

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In decades, the tremendous development of integrated circuits industry could be mostly attributed to SiO2, since its satisfactory properties as a gate dielectric candidate. The effectivity of SiO2 has been challenged since dielectric layer was scaled down below 3nm, when the gate leakage current of SiO2 became unacceptable. Institution to silicon-based CMOS techniques were proposed, but they have their own limitations. Nowadays, materials with high dielectric constants are mainstream gate dielectric materials in industry, but a SiO2 interfacial layer is still necessary to avoid gap between gat

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Lolla, Sri Venkata Tapasvi. "Understanding Microstructure Evolution in Rapid Thermal Processing of AISI 8620 Steel." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1262203896.

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