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Dissertations / Theses on the topic 'Cogeneration steam turbine'
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1
Uhmann, Petr. "Kogenerace v jednotkách pro termické zpracování biomasy a odpadů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230146.
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The diploma thesis deals with the cogeneration in units for thermal processing of biomass and waste. The theoretical part deals with the description of biomass and waste and energy recovery from these sources. In theoretical part is also focused on cogeneration and description of computational models of steam turbines. The practical part is focused on a specific calculation of the three steam turbines and comparison of computational models. On the base of the results is designed implementation of computational models to the simulation software W2E.
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Pokorný, Vojtěch. "Zvyšování elektrické účinnosti kogeneračních jednotek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230866.
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In this masters thesis are discusses the possibilities of increasing the electrical efficiency of cogeneration units with an internal combustion engine with the power output 800 kWe. Technical and economical aspect the connection with steam turbine, steam engine and ORC turbine is compared. It include the design of heat exchanger for ORC cycle.
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Šikula, František. "Kondenzační parní turbína." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254377.
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The topic of this thesis is a project of condensing steam turbine, which uses as an energy source heat waste from high output combustion engines. In the first part of the thesis, there is a general overview of different types of combustion engines and their thermodynamic cycles. There are also explained important features, which are essential for running of combustion engines. In the second part, there is a theoretical explanation of steam turbine. The main part of the thesis is a project of condensing steam turbine with an integrated gearbox. At first there are chosen basic conceptions, which influence the project; then there is calculated an algorithm for thermodynamic calculation for each turbine module. At the end, there is conducted a simplified calculation of a gearbox and there is also a calculation of payback period of the designed steam turbine. There are made drawings, which are all base on the previous calculations. There are drawings of sectional views of each unit and there is also a drawing of construction arrangement of steam turbine with a generator.
4
Mogawer, Tamer [UNESP]. "Analise técnica e econômica para seleção de sistemas de cogeração em ciclo combinado." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/99343.
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mogawer_t_me_guara.pdf: 1050701 bytes, checksum: ac5394fa773726920ea684e1c38e8892 (MD5)<br>Universidade Estadual Paulista (UNESP)<br>O setor elétrico brasileiro vem continuamente passando por crises energéticas; os consumidores, indústrias que dependem de energia para exercerem as suas atividades passaram a valorizar e a buscar fontes alternativas, confiáveis e ecologicamente adequadas com o objetivo de garantir o fornecimento de eletricidade de forma econômica, possibilitando desta maneira uma certa independência energética. Neste contexto, este trabalho tem a finalidade de selecionar sistemas de cogeração utilizando ciclos combinados com conjuntos a gás associadas a caldeira de recuperação sem queima suplementar e turbina a vapor, assim como realizar o levantamento das curvas de produção de energia e eficiência para os ciclos obtidos. Foram utilizados os parâmetros técnicos e construtivos das turbinas a gás e a vapor de uma mesma empresa fabricante, e através das curvas obtidas é possível selecionar o ciclo combinado mais adequado para cada situação desejada, tanto do ponto de vista energético quanto do ponto de vista econômico.<br>The electric Brazilian sector is continually subject to energy crisis, the industrial consumers, that depends on energy to do its activities, is nowadays up to valorize and to look for alternative, trustful and environmental appropriate sources with the objective of guaranteeing the supply of electricity in an economic way and warranting a certain energy independence. In this context, this work has the purpose of selecting cogeneration systems based on using combined cycles with gas turbines associated to heat recovery steam generators without supplementary burners and steam turbines, as well as accomplishing the rising of the curves of production of energy and efficiency for the obtained cycles. The technical and constructive parameters of the gas and steam turbines were considered from the same manufacturing company, and through the obtained curves it is possible to select the more appropriate cycle for each process requirement, in the energy and economic point of view.
5
Albrecht, Jan. "Parní turbina rychloběžná." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230628.
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Main aim of presented master thesis is focused on construction of high speed steam turbine. Steam turbine is designed based on parameters of waste incineration plant in Brno. First chapters shortly summarized historical development, transformation process and work principal of steam turbine. Consequently on first captures is in depth described impulse and reaction blading including expansion in i-s diagram and basic equations for efficiency calculations. In major part of master thesis is firstly discussed conceptual possibilities of turbine application for given parameters. Based on chosen concept is compiled algorithm for thermodynamic calculation for each turbine module. Simplify calculation of gearbox is included as well. Based on calculations are compiled construction drawings of all parts of steam turbine.
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Grolig, Ondřej. "Základní parametry technologie pro výrobu energie z biomasy." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228709.
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This thesis deals with a technical economic analysis of the midrange biomass units use. The main output product of the thesis is the computational system based on balance models of cogeneration key nodes. The computational system is suited for cogeneration technologies based on the Rankin steam cycle. The computational system was used for a particular case study calculation focused on a 1 MW biomass boiler extension by an expansion engine (a steam turbine or steam engine).
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Mogawer, Tamer. "Analise técnica e econômica para seleção de sistemas de cogeração em ciclo combinado /." Guaratinguetá : [s.n.], 2005. http://hdl.handle.net/11449/99343.
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Resumo: O setor elétrico brasileiro vem continuamente passando por crises energéticas; os consumidores, indústrias que dependem de energia para exercerem as suas atividades passaram a valorizar e a buscar fontes alternativas, confiáveis e ecologicamente adequadas com o objetivo de garantir o fornecimento de eletricidade de forma econômica, possibilitando desta maneira uma certa independência energética. Neste contexto, este trabalho tem a finalidade de selecionar sistemas de cogeração utilizando ciclos combinados com conjuntos a gás associadas a caldeira de recuperação sem queima suplementar e turbina a vapor, assim como realizar o levantamento das curvas de produção de energia e eficiência para os ciclos obtidos. Foram utilizados os parâmetros técnicos e construtivos das turbinas a gás e a vapor de uma mesma empresa fabricante, e através das curvas obtidas é possível selecionar o ciclo combinado mais adequado para cada situação desejada, tanto do ponto de vista energético quanto do ponto de vista econômico.<br>Abstract: The electric Brazilian sector is continually subject to energy crisis, the industrial consumers, that depends on energy to do its activities, is nowadays up to valorize and to look for alternative, trustful and environmental appropriate sources with the objective of guaranteeing the supply of electricity in an economic way and warranting a certain energy independence. In this context, this work has the purpose of selecting cogeneration systems based on using combined cycles with gas turbines associated to heat recovery steam generators without supplementary burners and steam turbines, as well as accomplishing the rising of the curves of production of energy and efficiency for the obtained cycles. The technical and constructive parameters of the gas and steam turbines were considered from the same manufacturing company, and through the obtained curves it is possible to select the more appropriate cycle for each process requirement, in the energy and economic point of view.<br>Orientador: Júlio Santana Antunes<br>Coorientador: José Luz Silveira<br>Banca: José Antonio Perrella Balestieri<br>Banca: Valdir Apolinario de Freitas<br>Mestre
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Bouše, Richard. "Paroplynové zařízení se vznětovým spalovacím motorem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378720.
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This master’s thesis deals with the possibility of increasing efficiency of energy blocks with combustion engines by the combination of the Sabat and Clausius-Rankine cycle into the combined cycle. In the thesis is briefly described the principle of the function of the auxiliary device, which can increase the efficiency of the combustion engine. This device, which consists of a waste heat boiler and two turbine modules, is designed using calculations. Both turbine modules are prepared with drawing documentation and there are described important structural elements. Each key part of the thesis is given by a brief theory, so the basic theory of combustion engines, waste heat boilers and steam turbine are described.
9
Jančok, Lukáš. "Kogenerační zdroj." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230755.
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V diplomové práci je krok po kroce vypracováno řešení zabezpečení energetického zdroje pro typické město v Sibiřské oblasti. Data, která tvoří zadání, byla získána od zákazníka pomocí dotazníku, protože pro nás oblast v čase vypracování nebyla dostupná. Na základě informací o aktuální energetické situaci, obyvatelstvu a dřevospracujícímu průmyslu je vybrána vhodná technologie pro zabezpečení tepla a elektrické energie. Druh zdroje byl vybrán dle dostupného paliva a následně byl proveden výpočet a design en- ergetického zdoje založeného na Rankine Clausiovém cyklu. Řešení obsahuje technický i ekonomický návrh. Technické řešení ukázalo, že nejdůležitější parametry jsou spolehlivost, bezpečnost a jednoduchost řešení. Design sítí, přídavných zařízení a plánování údržby není obsahem této práce. O dalších projektových krocích pojednává závěr.
10
Drábek, Ivo. "Energetický zdroj se spalovací turbinou." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230039.
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The goal of this master´s thesis is designing power plant with gas turbine of 50 MWe power output for the site. It includes appropriete choose of gas turbine and its simplified termodynamic calculation, designing the thermal diagram and its calculation, for the parameters complying with nominal temperature of outside air, layout design, annual energy and mass flow results, savings of combined heat and power, intended at this application and economic evaluation of investment.
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Mička, Radek. "Design průmyslového kotle s možností kogenerace." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319495.
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The diploma thesis deals with the design of the industrial boiler for biomass, Which deals with the issue of the energy future of combustion of fuels using current power generation - microcogeneration, designed for larger houses or smaller com- panies. The shape of the device is the interconnection of individual functional and technological parts of the boiler, a view of a new product that re ects its function. It uses modern and timeless materials, color and control technology to achieve overall comfort and time savings and service.
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Marques, Frederico Augusto Spolidorio. "Implementação e validação pratica de modelos multidisciolinares abordados em uma central de co-geração de energia eletrica." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259510.
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Orientador: Luiz Carlos Pereira da Silva<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-10T03:25:09Z (GMT). No. of bitstreams: 1
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Previous issue date: 2007<br>Resumo: Este projeto busca relacionar diversos aspectos interdisciplinares envolvidos em uma central de co-geração de energia elétrica. Motivado pela crescente inserção de centrais de geração distribuída operando de forma ilhada ou paralela ao sistema, foram desenvolvidos modelos mecânicos (térmicos e dinâmicos) e elétricos buscando representar os diversos equipamentos envolvidos em uma central de geração em um nível industrial. Baseado nesta concepção, optou-se pela geração de energia através de máquinas térmicas (turbinas a vapor) impulsionadas pela energia proveniente da queima de biomassa restante de diferentes processos industriais. Os modelos teóricos aqui representados foram numericamente simulados com parâmetros obtidos em um estudo de caso real. Seus resultados foram então comparados qualitativamente e quantitativamente contra as variáveis reais do processo analisado.
Ao consolidar esta ferramenta de estudo, o simulador mostrou-se eficiente no treinamento de operadores de casas de forças, sendo capaz de esclarecer as interferências entre o nível de carga com as demais variáveis envolvidas em seu processo<br>Abstract: This project intends to gather several interdisciplinary aspects common to a co-generation power plant. Driven by the
increasing amount of distributed generation units operating on island or parallel mode with the network, some mechanical
(thermo and dynamic) and electrical models were developed in order to represent the equipments usually installed on an industrial size power station. Based on this concept, the more convenient option was to proceed the evaluation through turbo machinery (steam turbine) driven by the energy acquired from the heat power on burning byproducts of industrial processes. The theoretical models were simulated with parameters obtained from a real case study. The results were then finally compared with real process information acquired from field research. In order to consolidate this computational tool, the simulator has shown efficient results on training power station operators on clarifying the impacts of load level on the other relevant variables on their processes<br>Mestrado<br>Energia Eletrica<br>Mestre em Engenharia Elétrica
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Santos, Moisés Teles dos. "Análise exergética dos sistemas térmicos em um processo de produção de celulose e papel." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-12072007-190648/.
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Este trabalho apresenta uma avaliação comparativa de desempenho termodinâmico de sistemas térmicos em uma unidade industrial de fabricação de celulose e papel Kraft. Foram coletados dados de projeto e operação para o sistema atual de utilidades e de um novo sistema em fase de implantação. A análise exergética é utilizada como ferramenta de avaliação quantitativa e qualitativa para os principais componentes do sistema de cogeração de energia: caldeiras de força, caldeiras de recuperação química, turbinas e válvulas redutoras. Diferentes critérios de desempenho globais e relativos são determinados através de balanços simultâneos de energia e entropia (balanços exergéticos). As irreversibilidades ou entropia gerada nos sistemas são determinadas através da exergia destruída. Esta abordagem revela os principais pontos onde a energia é degradada em sua qualidade, indicando onde devem ser buscadas alternativas de otimização termoeconômica para um melhor aproveitamento dos recursos energéticos disponíveis.<br>This work presents a comparative evaluation from thermodynamic performance view of thermal systems in a Kraft pulp and paper mill. The design information and the data of the industrial operation were collected for the current utility system and for the new system that has been buit. The exergy analysis is applied as the quantitative and qualitative evaluation tool for the main energy conversion systems: power boilers, chemical recovery boiler, turbines and throttling valves. Different global and relatives performance criteria are estimated by simultaneous energy and entropy balances (exergy balances). The irreversibility or generated entropy in the systems is determined by the destroyed exergy. This approach reveals the places where energy quality is mainly degraded and shows where alternatives for optimization must be sought for a better use of the available energetic resources.
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Yang, Jieh Ming, and 楊介銘. "The Operational Study of Steam Turbine Cogeneration System." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/64966330531912681192.
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Lutsch, Thorsten. "Theoretische und experimentelle Untersuchungen zum integrierten Gas-Dampf-Prozess auf System- und Komponentenebene mit Fokus auf industrielle Kraft-Wärme-Kopplung." 2020. https://tud.qucosa.de/id/qucosa%3A75720.
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Im industriellen Bereich erfolgt die Energiebereitstellung auf thermischer, wie elektrischer Seite zunehmend mittels hocheffizienter Kraft-Wärme-Koppelung (KWK). Konventionelle KWK-Anlagen ohne Dampfturbine (DT) verfügen technologiebedingt über eine relativ starre, lastabhängige Stromkennzahl. Damit kann eine wärme- und/oder stromseitige Volatilität schlecht kompensiert werden ohne die jeweils gekoppelte Größe zu beeinflussen. Der integrierte Gas-Dampf-Prozess (GiD-Prozess) zeichnet sich aufgrund der halboffenen Prozessgestaltung durch eine anlagentechnisch sehr einfache Bauweise und damit gegenüber einer klassischen Gas und Dampf-Prozess (GuD)-Anlage geringeren Investitions- und Wartungskosten aus. Die vorliegende Arbeit befasst sich mit der Analyse des lastabhängigen Betriebsverhaltens des integrierter Gas-Dampf-Prozess (GiD)-Prozesses unter Berücksichtigung der Teillastfähigkeit und erreichbarer Lastgradienten. Hierzu werden umfangreiche Versuchsfahrten des Versuchskraftwerks am Zentrum für Energietechnik (ZET) der TU Dresden dargelegt und analysiert. Die Versuche werden durch transiente Systemsimulationen auf Komponentenebene der Kraftwerksanlage nachvollzogen und Erkenntnisse zu dem Effekt der Lastgradienten auf heißgasbeaufschlagte Bauteile gewonnen.