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Dissertations / Theses on the topic 'Termoelektrik'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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1

Aruğaslan, Emine Küçükkömürler Ahmet. "Termal elektrik kaynaklı kablosuz yüksek sıcaklık duyum devresi /." Isparta : SDÜ Fen Bilimleri Enstitüsü, 2008. http://tez.sdu.edu.tr/Tezler/TF01176.pdf.

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Kočvárek, Ondřej. "Termoelektrický solární generátor." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217630.

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The introduction of this work is devoted to the description of physical principals and condtruction of modern semiconductor thermoelectric transformers. This work describes thein basic characters and the most commonly used materials for thein production. Further, it mentions the basic principals and physical effects that describe the thermoelectric conversion of energy and the nondestructive method for establishing the basic material characteristics of thermoelectric transformers. The substantiv part of this work is the measuring of the material’s characteristics of the accessible thermoelectr
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3

Blomqvist, Emelie. "Termoelektrisk lagring i system med fjärrvärmeproduktion." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-227420.

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With increased deployment ofintermittent renewable energy, such aswind and solar power, energy storagebecomes necessary to help reduceproduction peaks. Thermoelectric EnergyStorage is a method still in researchphase, which stores electricity in hotwater at a temperature of 120 ° C. Thisthesis aims to examine whether theThermoelectric Energy Storage would bepossible to integrate into existingpower generation such as a combined heatand power plant, and how the technologypotentially could function in theelectricity market. ThermoelectricEnergy Storage consists of a chargingprocess and a dischargi
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4

Brázdil, Marian. "Termoelektrické moduly pro mikrokogenerační zdroje." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399217.

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Small domestic hot water boilers burning solid fuels represent a significant source of air pollu-tion. It is therefore an effort to increase their combustion efficiency and to reduce the produc-tion of harmful emissions. For this reason, the operation of older and currently unsatisfactory types of household boilers has been legally restricted. Preferred types of boilers are low-emission boilers, especially automatic or gasification boilers. Most of them, however, in compar-ison with previous types of boilers, also require connection to the electricity grid. If there is a long-term failure in e
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Jebavá, Alžběta. "Polovodičová keramika pro termoelektrické aplikace." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2015. http://www.nusl.cz/ntk/nusl-217139.

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This diploma thesis focuses on the syhnthesis of multicomponent ceramic system based on Ca-(Mn,Co)-O. The thesis is devided in theoretical and experimental part. The theoretical part is describing ceramic materials for thermoelectric application, preparation and synthesis of these materials and their processing. The experimental part is dealing with synthesis of ceramic powder which is processed to the porous ceramics. The properties of prepared porous ceramics are observed.
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Janák, Luděk. "MEMS termoelektrický generátor v letecké aplikaci." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231199.

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Tato diplomová práce se zabývá vývojem autonomního zdroje elektrické energie založeného na MEMS termoelektrickém generátoru. Uvažovaný generátor bude následně použit pro napájení autonomní senzorické jednotky pro letecké aplikace. Systémový pohled na autonomní senzorickou jednotku zahrnuje senzor se zpracováním a přenosem dat, energy harvester (termoelektrický generátor), power management, akumulační prvek a autodiagnostiku. Všechny výše uvedené komponenty jsou v práci podrobně popsány. V úvodu práce je provedena široká rešerše existujících termoelektrických generátorů pro letecké aplikace. Ná
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7

Hansson, Elisabet. "Peltierelement - spillvärme till el : Peltier element - waste heat into electricity." Thesis, Uppsala universitet, Elektricitetslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-174402.

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The purpose of this thesis has been to determine experimentally how good a peltier element is to convert waste heat from wood burning. Three different peltier elements were used in a comparison study. The comparison was mainly done to know how much power could be obtained from each element. Even, a circuit with a step-up function has been created to give a higher output voltage than the peltier element itself. The result of the experiments was a low output power, the highest value reached 2.18W. Also, the Carnot efficiency has been calculated for the three different elements and the efficiency
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Hörnfeldt, Robert. "Fjärrvärme som möjlighet till reservdrift av elproduktion." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-97621.

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Rapporten är en utvärdering av möjligheten att generera elektrisk energi från fjärrvärme med Seebeck-effekten och görs på uppdrag av Skellefteå Kraft. Kursen är examensarbete för högskoleingenjörsexamen i Elkraftteknik, 5EL210 vid institutionen tillämpad fysik och elektronik på Umeå Universitet under vårterminen 2014.En termoelektrisk generator fungerar enligt Seebeck-effekten och genererar en elektrisk spänning som är linjär mot temperaturskillnaden mellan sina två metallytor. För att få en temperaturskillnad så krävs ett kylmedium vilket skapar ett värmeflöde från den varma energikällan till
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9

Brázdil, Marian. "Peltierovy články pro výrobu elektrické energie." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229417.

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In the last decade there is a rising interest in thermoelectric applications. Thermoelectric generators enabling the direct conversion of the heat into the electricity become attractive. This fact is caused by the demands of environmental operation and saving primary resources. Scientists intensively investigate and develop new materials and structures suitable for these applications. The efficiency of the thermoelectric conversion progressively increases. Unfortunately we have no available materials with sufficient thermoelectric properties which could provide cost-competitive price. Thermoel
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10

Laga, Ondřej. "Využití termoelektrického generátoru pro zvýšení využití odpadního tepla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231965.

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This thesis deals with the problem of waste heat, namely, the exhaust gas which are not frequently used. Specifically, it is a design of thermoelectric generators set, power electronics for fan and heat exchanger proposal. The entire system uses the energy of the waste heat to increase the heating efficiency.
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Awala, Ibrahim. "Influence of strain and point defects on the Seebeck coefficient of thermoelectric CoSb3 : Inverkan av töjnings och punktdefekter på Seebeck-koefficienten för termoelektrisk CoSb3." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-42567.

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Many studies and experiments have been conducted over the years to find solutions to the electricity problem. This issue is not just related to how fossil fuels are dispensed. Also, the environmental concerns associated with using fossil fuels have become a severe issue, which is a major cause of environmental pollution and ozone layer damage. As such, the need for energy becomes one of the essential goals. Therefore, research has begun to revolve around thermoelectrics, which is a straightforward approach for generating energy, by converting heat directly into electricity. Cobalt antimonide (
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Frank, Vojtěch. "Zařízení pro testování termoelektrických modulů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378506.

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Goal of this thesis is to specify needed upgrades of current aparatus used for measuring parameters of thermoelectic modules, witch was constructed at the Enegry institute of Faculty of Mechanical Engineering, Brno University of Technology. In this theseis current state of aparatus where reviewed and specifications for updates where made. These specifications where used to create plans for new aparatus. Quality of designed aparatus where verified by simulations made in ANSYS. Plans for proposed aparatus where made.
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Tlach, Michal. "Optimalizace termoelektrického lineárního aktuátoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228359.

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This dissertation describes the process of designing, process of optimalization and the following implementation of the changes of the thermoelectric linear actuator which operates the opening and the closing of the valves used in the most modern buildings for example for floor heating. It is a product produced in large series with the annual production of more than half of a million items. The reason for the optimalization is the instability during the assembly in the production and the reduction of costs, whereas the final assembly takes place in Germany. The dissertation deals with designin
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14

Fries, Lukáš. "Výzkum bezolovnatých pájecích slitin z pohledu termoelektrických napětí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-402136.

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The thesis deals with the theoretical investigation of the thermoelectric tensions in lead-free solder. The theory introduces the reader to the formation and composition of solder joints, thermoelectric properties and behavior in circuits. Part of the thesis is the design and optimization of the measuring tool for lead-free solder and product samples with measuring.
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Bednár, Anton. "Využití bezdrátového měření teploty pro řízení rotační pece." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230894.

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This project tries to find out the possible solution for temperature measurement and control on the rotary calcinations kiln at PRECHEZA company, by using of new wirelessHART temperature transmitters.
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16

Holmström, Marcus. "Design of a Carbon Fiber Thermocouple for Elevated Temperature Measurements." Thesis, KTH, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279105.

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Thermocouples are one of the most commonly used instruments for thermometry at elevated  temperatures. As of today, there are only a few types of thermocouples that are built to withstand a temperature beyond 1600 °C,however they usually have a temperature measurement uncertainty of around 1% at these high temperatures. Beyond the 1600 °C temperature span, most high temperature thermocouples tend to drift in the measurements, causing it to output a faulty and inaccurate read of the actual temperature. This thesis explores the usage of carbon fibers as a material to be used in thermocouples, by
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17

Skalický, Michal. "Konstrukční návrh aparatury pro destruktivní zkoušky termoelektrických modulů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417768.

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In order to reliably test thermoelectric modules, it is necessary to have a adequate measuring apparatus. The presented diploma thesis deals with the design of measuring apparatus capable of performing both long-term testing of thermoelectric modules at a constant high temperature and thermal cycling extension has been designed. Both types can be changed in a short time.
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18

Jaroš, David. "Palubní počítač pro vyhodnocení stavu a funkčních parametrů spalovacích motorů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217600.

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This thesis deals with design and realization of the onboard computer for evaluating functional parameters and status of the gas engine. Designed solution is consisted of two main parts. The first part is measuring unit whose obtains actual information on engine especially consumption of fuel, rotate per minutes and temperature of engine head. The second part of the solution is formed by pocket computer with appropriate software. The application for the pocket computer processes data from the measuring unit and from GPS receiver, which is integrated in pocket computer. Wireless bluetooth techn
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19

Žáková, Kateřina. "Syntéza keramických materiálů na bázi Ca-Co-O systému." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2018. http://www.nusl.cz/ntk/nusl-376785.

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In this work synthesis of structure cobaltites based on Ca-Co-O system is discussed. As major way of synthesis was chosen citric acid method. The document is devided into theoretical and experimental part and also into discussion of observed results. Main focus of literary research is general utilization and function of thermoelectric materials, related thermoeletric effects according to structural defects in crystals. Also topic of cobaltite ceramics is described. Due to the fact that calcium-cobalt oxides are conductive, their use is point of interest in high-temperature and energy applicati
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20

Kříž, Pavel. "Využití termoelektrického generátoru pro zvýšení účinnosti otopného tělesa." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231094.

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This diploma thesis deals with a design layout of the fan power supply that ensures the increase of the efficiency of the heating unit. For usage in the areas without electric power, the power supply is secured by thermoelectric generator. The system has to function on the basis of autonomous system which turns itself on only when necessary. In the introductory part of the paper there is a recherché of thermoelectric generators for general usage. Next it mentions the basic findings in from the field of DC/DC converters for low power applications. In this part attention is given to MPPT algorit
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Chrenka, Eduard. "Regulátor horkých vtoků pro vstřikovací formy plastu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-240812.

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The thesis focuses on implementation of a hot runner controller for injection molds for plastic materials with a maximum number of 56 regulated zones. The first part of the thesis deals with already existing and used solutions of the given subject. The following part of the thesis describes the principles of temperature measurement by means of thermoelectric sensors, including their linearization as well as communication protocols MODBUS, EUROMAP 17. The identification of a regulated system ( heating zone) has been carried out before the hardware design. The development process is divided into
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Ančík, Zdeněk. "Mechatronic Design and Verification of Autonomic Thermoelectric Energy Source for Aircraft Application." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-234600.

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Předložená disertační práce řeší komplexní mechatronický návrh autonomního termoelektrického zdroje energie pro letecké aplikace. Na základě dostupných zdrojů a literatury práce popisuje současný stav problematiky. V práci jsou prezentovány simulační modely MEMS termoelektrických článků, které jsou ověřeny experimentálním testováním a hodnotami dostupnými od výrobce. Na základě metodiky model-besed design byly navrženy a vyrobeny tři demonstrátory. Jejich vlastnosti byly testovány v reálných podmínkách na letecké pohonné jednotce.
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Mejzlík, Michal. "Návrh a tvorba laboratorní úlohy s Peltierovým článkem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218158.

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The introduction of this paper describes three thermoeletrical effects and their properties. It also deals with thermoelectrical cells, which are using Seebeck´s and Peltrier´s effects. The paper decribes principles how the Peltier´s cells work, their mathematical model, construction and practical use. The paper shows what kinds, shapes and output we can meet at the market and which kinds of parameters regulate their selection. The paper suggests the possibility to measure characteristic behaviour and quantity during laboratories tasks and their evaluations. At the conclusion is adduced the su
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Obadal, Petr. "Různé způsoby využití slunečního záření pro výrobu elektrické energie." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219072.

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The thesis deals with the problem of potential use of solar energy through the conversion into electric energy. The thesis analyses in great detail several types of conversion. My special concern included photovoltaic conversion and thermal conversion of solar energy using steam turbines for energy production. In the subsequent parts, I focus on the problem of photovoltaic, photovoltaic systems, and solar thermal power plants, their installation and use.
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Belháč, Jakub. "Optimalizace pohybu termoelektrického lineárního aktuátoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229391.

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The thesis describes movement optimization of a linear thermoelectric actuator that is used for operating floor heating valves in modern buildings. Featuring experimental nature, the thesis deals with a problem specified by an industrial company within the following steps; definition of possible solutions based on problem research, experimental verification of selected propositions, the best solution selection resulting from the analysis of executed measurements, final verification with all product versions, benchmarking.
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Arnošt, Karel. "Generátorové snímače." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217705.

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The thesis deals with power harvesting sensors as a source of energy. As the power requirements for microelectronics decreases the environmental energy sources become more perspective. In a few last years batteries reach a higher capacity but there is still problem with their replacement. Power harvesting sensors appears as a good solution for powering microelectronics.
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Znbill, Laila. "Nízoenergetické měniče v pevné fázi pro Energy harvesting." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-449086.

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Disertační práce je zaměřena na nízkoenergetické konvertory pro zpracování energie. Pro fotovoltaické generátory pracující při nízké úrovní osvětlení byly navrženy konvertory založené na konfiguraci single cell. Pomocí levných výrobních procesů a dostupných materiálů byl navržen a vyroben jednoduchý a spolehlivý termogenerátor. Výrobní postupy využívaly plazmatické aktivace povrchu pomocí výboje s dielektrickou bariérou a modifikované metody depozice PEDOT. Byly navrženy jednoduché a spolehlivé DC/DC měniče pro nízkonapěťové aplikace jako termoelektrické generátory a fotovoltaické články v kon
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Katic, Janko. "Highly-Efficient Energy Harvesting Interfaces for Implantable Biosensors." Doctoral thesis, KTH, Integrerade komponenter och kretsar, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-206588.

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Energy harvesting is identified as an alternative solution for powering implantable biosensors. It can potentially enable the development of self-powered implants if the harvested energy is properly handled. This development implies that batteries, which impose many limitations, are replaced by miniature harvesting devices. Customized interface circuits are necessary to correct for differences in the voltage and power levels provided by harvesting devices from one side, and required by biosensor circuits from another. This thesis investigates the available harvesting sources within the human b
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Líbal, Jan. "Využití termovizní kamery pro měření teploty elektrických strojů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217964.

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The master‘s thesis deals with utilization of infrared camera for temperature measurement of electrical machines. The first part describes non-contact temperature measuring, the second part describes principle of sensors that evaluate quantity of incident infrared radiation. In the next part there is termovision camera SAT-HY 6800 presented and the instructional manual for SAT Report computer programme created. This computer programme is used for analyzing of termovision pictures from the SAT-HY 6800 termovison camera. The chapter 7 describes temperature measuring of one-phase asynchronous mot
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Soroka, Miroslav. "Struktura a termoelektrické vlastnosti vrstevnatých kobaltátů." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-344050.

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The synthesis of NaxCoO2 by Pechini method (with initial sodium stoichiometry x = 1.0, 0.9, 0.8, and 0.7) was studied for the samples heat-treated in the temperature range from 550 řC to 750 řC. The structure characterization and phase composition was carried out by the powder X-ray diffraction (XRD) analysis. The elementary analysis was done using atomic absorption spectroscopy. From the thermoelectric properties, the Seebeck coefficient was measured for both α- and γ- phase. The Weiss constant was determined for α- and γ- phase by linear regression of 1/χ. The real sodium content in sodium c
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Hnida, Katarzyna. "Wykorzystanie matryc z porowatego tlenku glinu do syntezy wysokouporządkowanych nanostruktur półprzewodnikowych do zastosowań termoelektrycznych." Praca doktorska, 2014. https://ruj.uj.edu.pl/xmlui/handle/item/59429.

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Z punktu widzenia inżynierii materiałowej, rozwój nauki i technologii zmierza w kierunku zmniejszania wymiarów, po to aby otrzymywać struktury z coraz większą precyzją i o lepszej wydajności pracy. Powszechne zainteresowanie nanostrukturalnymi materiałami wynika głównie z faktu, że ich właściwości: optyczne, elektryczne i mechaniczne, zazwyczaj różnią się od tych obserwowanych dla materiałów o takim samym składzie chemicznym czy fazowym ale w większej skali. Wiele obiecujących strategii zostały już zaproponowanych do wytwarzania nanomateriałów. Wśród nich jest anodyzacja, z powodzeniem stosowa
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Deljerud, Hampus. "Hållbar energi till mobila hem vintertid : Ett koncept för hållbar energiutvinning, utvald med analytisk metodik." Thesis, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-85027.

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Detta projekt har utförts som examinerande moment i kursen: examensarbete för högskoleingenjörsexamen i innovationsteknik och design, MSGC12, 22,5 hp. Projektet inleddes och utfördes av Hampus Deljerud med hjälp av Invencon AB. Handledare på universitetet var Monica Jakobsson, och examinator i kursen var professor Leo de Vin. Ett problem har identifierats att ägare av fritidsfordon har svårt att tillgodose sitt behov av hushållsel under vintern. Under projektet har en rad marknadsundersökningar genomförts där behovet och existerande lösningar har undersökts. Enkäter och andra undersökningsmeto
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Vágner, Petr. "Fyzikální analýza hlavních procesů v palivových článcích s pevnými oxidy a jejich matematická formulace." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-340880.

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Solid oxide fuel cells (SOFC) are mainly used as large stationary elec- tricity sources, therefore an every little improvement in their performance leads to considerable savings. In order to understand the fundamentals of the SOFC operation, we have developed a new model describing the main physical processes. The thermodynamical model of SOFC, developed in this thesis, concerns the gas transport, the transport of the charged particles in- cluding the thermoelectric effect and the electrochemical reactions. Linear irreversible thermodynamics is the key modelling framework, in which the dusty g
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