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Dissertations / Theses on the topic 'Piston compressors'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Monyane, Dyke Wellington. "Development of a permanent magnet free piston compressor." Thesis, Cape Peninsula University of Technology, 2005. http://hdl.handle.net/20.500.11838/1132.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2005.<br>There is a high demand for refrigerators in South Africa, as revealed by the Eskom TSI market survey. Refrigerators are found to be expensive becoause compressors are imported and compressors cost 45% of the total budget of a refrigerator. For this reason a project was undertaken to develop an affrodable refrigirator but this was unsuccessful owing to expensive compressors. The compressor consists of an induction motor coupled to the compression unit via a crankshaft. In this thesis a novel permanent mag

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2

Monajemi, Layla. "Reliablity [i.e. Reliability] assesment [i.e. assessment] of rolling piston rotary compressors." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1696.

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Thesis (M.S.) -- University of Maryland, College Park, 2004.<br>Thesis research directed by: Dept. of Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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3

Nadeem, Tariq. "Computer simulation of the steady-state thermodynamic processes and piston ring wear for a multi-stage intercooled reciprocating air compressor." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43257.

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The objectives of this research are the prediction of the thermodynamic behavior of a multi-stage intercooled reciprocating compressor and its progressive loss of performance due to leakage. A theoretical model is developed to simulate the thermodynamics of the compressor system and the lubricating condition and wear of the piston ring pack for a multi-stage intercooled reciprocating compressor. A first law of thermodynamics approach is used to determine the thermodynamic properties of the gas inside the cylinders, the intercoolers and the inlet and discharge manifold. The compressor valves ar

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4

Rodrigues, Rodrigues Margarita. "Improving performance and rotordynamic characteristics of injection compressors via much longer balance-piston and division-wall seals." Thesis, [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1154.

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5

Устименко, М. С., Павло Володимирович Руденко, Павел Владимирович Руденко та Pavlo Volodymyrovych Rudenko. "Комплексный подход в подборе материалов и метода упрочнения основных узлов сальникового уплотнения кислородного компрессора". Thesis, Сумский государственный университет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46045.

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6

Ferreira, Adriano Domingos [UNESP]. "Simulação do escoamento bifásico da mistura óleo-refrigerante através da folga radial de compressores rotativos de pistão rolante." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/88881.

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Made available in DSpace on 2014-06-11T19:23:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-11-27Bitstream added on 2014-06-13T18:10:04Z : No. of bitstreams: 1 ferreira_ad_me_ilha.pdf: 1079421 bytes, checksum: dcb82443da323ec46bf3bd207a17001c (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Devido à solubilidade mútua entre o fluido refrigerante e o fluido lubrificante usados em sistemas de refrigeração por compressão de vapor, eles formam uma mistura homogênea que influencia tanto os processos de transferência de calor no evaporador e no condensador

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7

Izuka, Jaime Hideo 1974. "Dinamica de sistema rotor-biela-pistão de compressores alternativos com mancais radiais hidrodinamicos." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263067.

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Orientador: Paulo Roberto Gardel Kurka<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-14T09:04:50Z (GMT). No. of bitstreams: 1 Izuka_JaimeHideo_M.pdf: 3067570 bytes, checksum: 82a84bf138484b1bf94c984320ee5486 (MD5) Previous issue date: 2009<br>Resumo: O objetivo do presente trabalho é a modelagem dinâmica e a simulação das cargas e dos deslocamentos correntes nos mancais de um compressor alternativo. O modelo de mancal, integrado à cinética do conjunto, permite avaliar de forma precisa a influência dos pe

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8

Акулінін, А. В., Юсіф Фахрат Самедов, Юсиф Фахрат Самедов та Yusif Fakhrat Samedov. "Адаптивне керування компресорною установкою". Thesis, Сумський державний університет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/40999.

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Поршневі компресори, які є складовою частиною багатьох промислових агрегатів, відносяться до класу складних об‘єктів. Одним зі рішень проектування їх систем керування є використання сучасних інформаційних технологій та CALS- концепції в особистості. Концепція і стандарти CALS визначають набір правил та регламентів, відповідно до яких будуються взаємодія суб‘єктів. Основна задача при цьому є створення повною електронною моделі.

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9

Попов, В. П., та М. С. Казбан. "Расчетное исследование рабочих процессов многоступенчатого поршневого компрессора". Thesis, Издательство СумГУ, 2007. http://essuir.sumdu.edu.ua/handle/123456789/19308.

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В результате проведенных расчетов получены расчетные данные изменения давлений и температур в ступенях компрессора, в зависимости от режимных и конструктивных параметров, затрат удельной работы и мощности, к. п. д. и степени совершенства компрессора. Разработанная модель позволяет на стадии проектирования компрессоров выполнить оценку и расчетный анализ параметров компрессора. При цитировании документа, используйте ссылку http://essuir.sumdu.edu.ua/handle/123456789/19308

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10

Зайцев, Іван Григорович, Иван Григорьевич Зайцев, Ivan Hryhorovych Zaitsev та В. П. Попов. "Исследование работы уплотнений и опор поршневого компрессора сухого сжатия". Thesis, Изд-во СумГУ, 2002. http://essuir.sumdu.edu.ua/handle/123456789/21219.

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11

Riabzev, Sergey. "Simulation and development of linear single-piston balanced compressor in Stirling cryogenic cooler." Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/33722.

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The linear compressor in a Stirling cooling engine is well known as a source of significant vibration, causing a harmful jitter of equipment, wherein it is employed. Some equipment operates typically in harsh airborne environment, i.e. broadband vibrations, quasi-static accelerations and shocks. Under such excitations, the state-of-the-art approaches to a vibration control, either passive or active, are often failed to meet simultaneously the specified performance, reliability and price.

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12

Ferreira, Adriano Domingos. "Simulação do escoamento bifásico da mistura óleo-refrigerante através da folga radial de compressores rotativos de pistão rolante /." Ilha Solteira : [s.n.], 2006. http://hdl.handle.net/11449/88881.

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Orientador: José Luiz Gasche<br>Banca: André Luiz Seixlack<br>Banca: Paulo Eduardo Lopes Barbieri<br>Resumo: Devido à solubilidade mútua entre o fluido refrigerante e o fluido lubrificante usados em sistemas de refrigeração por compressão de vapor, eles formam uma mistura homogênea que influencia tanto os processos de transferência de calor no evaporador e no condensador, como os processos de lubrificação e de selagem de vazamentos no interior do compressor. O vazamento de refrigerante através da folga radial de compressores rotativos de pistão rolante é de particular importância para o bom de

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13

Hacioglu, Bilgin. "Investigation Of The Effect Of Oil Groove In The Performance Of A Compressor Piston." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12608024/index.pdf.

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Oil feed grooves are implemented in reciprocating compressor piston applications to assure a constant supply of lubricating oil on bearing surfaces and decrease friction loss. In a hermetically sealed compressor, due to small clearances encountered, oil supply becomes critical in order not to operate in boundary lubrication regime. Due to the small size of the piston and small piston &ndash<br>cylinder clearance, a partial lubrication regime is present. In the current study, a model that solves Reynolds&rsquo<br>equation for piston-cylinder lubrication and the average Reynolds&rsquo<br>equat

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14

Боряк, А. С., С. И. Черкащенко та А. И. Слепченко. "Модернизация поршневого компрессора 4ДВК-210-10". Thesis, Издательство СумГУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/21573.

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Рассмотрена технология компримирования двуокиси углерод в процессе производства карбамида по технологии голландской фирмы «Стамикарбон» с использованием центробежного компрессора и дожимающего поршневого компрессора. Проанализированы способы повышения производительности центробежного и поршневого компрессора. Представлены результаты модернизация поршневых компрессоров 4ДВК-210-10 с целью увеличения их производительности и перевода цилиндропоршневой группы на работу без смазки на ОАО «Одесский припортовый завод». При цитуванні документа, використовуйте посилання http://essuir.sumdu.edu.ua/han

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15

Nunio, François. "Contribution à l'étude du comportement dynamique de compresseur à pistons alternatifs." Lille 1, 1993. http://www.theses.fr/1993LIL10100.

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Un modèle de calcul des sollicitations appliquées aux éléments du mécanisme d'un compresseur à pistons alternatifs est construit. La chaîne cinématique est modélisée dans son ensemble (moteur, accouplement et compresseur) et son comportement est abordé de façon dynamique, sans linéarisation des équations du mouvement ; la géométrie des éléments n'est pas simplifiée. La formulation dynamique du problème permet de quantifier les variations des sollicitations induites par le comportement dynamique en torsion de la ligne d'arbre, tant lors des phases de fonctionnement stationnaire (irrégularité cy

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16

Yeung, Chung Chuen. "Étude du cycle de compression d'un compresseur à piston." Compiègne, 1985. http://www.theses.fr/1985COMPI204.

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17

Fernandes, Julio Romero Santos. "Modelo dinamico da lubrificação do pistão em compressores alternativos." reponame:Repositório Institucional da UFSC, 1996. https://repositorio.ufsc.br/xmlui/handle/123456789/158034.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnologico<br>Made available in DSpace on 2016-01-08T20:39:12Z (GMT). No. of bitstreams: 1 104402.pdf: 13360964 bytes, checksum: 113cc948d365d428ae37e9d63e47f3c5 (MD5) Previous issue date: 1996<br>Simulação do movimento radial do pistão em um compressor alternativo de refrigeração. Esta simulação tem como objetivo promover economia de energia, diminuindo tanto a potência consumida por atrito viscoso quanto o vazamento de fluido refrigerante através da folga radial, além de reduzir o ruído do compressor.

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18

Destoop, Thierry. "Contribution à la conception assistée par ordinateur de compresseurs à pistons alternatifs." Lille 1, 1988. http://www.theses.fr/1988LIL10012.

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19

Destoop, Thierry. "Contribution à la conception assistée par ordinateur de compresseurs à pistons alternatifs." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37613100k.

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20

Tuhovčák, Ján. "CFD simulace proudění chladiva semihermetickým kompresorem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230438.

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The CFD simulation of cooling piston compressor Stream, manufactured by Emerson company, is the topic of this diploma thesis. Analysis of moving parts (piston, valves) and refrigerant or physical settings for simulation were based on experimental data provided by Emerson. The goal of the thesis is to test opportunities of Star-CCM+ in simulating the flow inside the compressor. In the end there will be a comparison of experimental data and results from the simulation. The thesis also contains a theoretical background of piston compressors and phenomenon following the operating compressor.

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21

Moreira, Rafael da Silveira [UNESP]. "Comparação da viabilidade técnica-econômica em condicionamento de ar: compressor a pistão versus compressor rotativo de velocidade variável." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/99341.

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Made available in DSpace on 2014-06-11T19:30:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-07-07Bitstream added on 2014-06-13T20:39:48Z : No. of bitstreams: 1 moreira_rs_me_guara.pdf: 1015481 bytes, checksum: 6083704ea441f414182fe9b27a70777b (MD5)<br>Eletrobras<br>Neste estudo são apresentados os resultados de um trabalho realizado em uma bancada de testes, onde se constatou a diferença de potência elétrica de acionamento e do coeficiente de performance no funcionamento de dois diferentes tipos de compressores: um hermético a pistão e outro rotativo do tipo scroll, operando com i

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Moreira, Rafael da Silveira. "Comparação da viabilidade técnica-econômica em condicionamento de ar: compressor a pistão versus compressor rotativo de velocidade variável /." Guaratinguetá : [s.n.], 2009. http://hdl.handle.net/11449/99341.

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Resumo: Neste estudo são apresentados os resultados de um trabalho realizado em uma bancada de testes, onde se constatou a diferença de potência elétrica de acionamento e do coeficiente de performance no funcionamento de dois diferentes tipos de compressores: um hermético a pistão e outro rotativo do tipo scroll, operando com inversor de frequência. No estudo variou-se a vazão do fluido refrigerante, e consequentemente o efeito frigorífico, por dois procedimentos distintos: restrição da passagem do refrigerante através de uma válvula de estrangulamento, mantendo-se a rotação do compressor a pi

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23

Couto, Paulo Rogério Carrara. "Modelagem e simulação numérica de pistão pneumático para compressores de refrigeração." Florianópolis, SC, 2001. http://repositorio.ufsc.br/xmlui/handle/123456789/81573.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.<br>Made available in DSpace on 2012-10-19T05:38:13Z (GMT). No. of bitstreams: 0Bitstream added on 2014-09-26T00:11:33Z : No. of bitstreams: 1 183724.pdf: 3044883 bytes, checksum: 552b0c72b71e32194307e8c852ebe860 (MD5)<br>O presente trabalho contempla o modelamento e a investigação numérica de um pistão pneumático utilizado em compressores de refrigeração doméstica. Trata-se de uma nova concepção onde o conjunto pistão/cilindro submetido a carregamentos dinâmico

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Grando, Fernando Paulo. "Modelo bifásico para a lubrificação do pistão em compressores herméticos alternativos." reponame:Repositório Institucional da UFSC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/90823.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2007.<br>Made available in DSpace on 2012-10-23T15:40:05Z (GMT). No. of bitstreams: 1 273661.pdf: 9786575 bytes, checksum: 486f5aaf5031e6cd28d901ca3ca49a90 (MD5)<br>O estudo da lubrificação por filme fluido em componentes mecânicos é de fundamental importância na análise do comportamento dinâmico e na determinação das perdas devido ao atrito entre as partes móveis. Em muitos casos, gases presentes no sistema podem interagir com o óleo e alterar signifi

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Dias, João Paulo. "Escoamento de óleo e refrigerante pela folga pistão-cilindro de compressores herméticos alternativos." Florianópolis, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/99466.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.<br>Made available in DSpace on 2013-03-04T20:42:10Z (GMT). No. of bitstreams: 1 304353.pdf: 28322357 bytes, checksum: 34efb2d7cd1ad9803a2f6b3055f26206 (MD5)<br>O conhecimento do processo de lubrificação das partes móveis dos compressores alternativos herméticos, sobretudo do pistão, é de importância fundamental na concepção de sistemas de refrigeração mais eficientes. A existência de uma pequena folga entre o pistão e o cilindro permite que movimentos radiais do pist

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Chieh, Huang. "Modelagem e análise computacional da lubrificação do conjunto eixo, biela e pistão em compressores alternativos." Florianópolis, SC, 2007. http://repositorio.ufsc.br/xmlui/handle/123456789/90306.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.<br>Made available in DSpace on 2012-10-23T08:21:59Z (GMT). No. of bitstreams: 1 262297.pdf: 1192515 bytes, checksum: d2f00de26c2b2491defe2d4d210c4212 (MD5)<br>Esta dissertação trata da solução do sistema dinâmico mancalizado de um compressor alternativo. O sistema é composto por eixo, biela e pistão, sustentados por mancais hidrodinâmicos. Sendo assim, o sistema é passível a desalinhamentos e deflexões, resultando em perdas mecânicas e termodinâmicas. Modelos d

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Santos, Claudio José. "Efeito do escoamento na folga pistão-cilindro sobre a eficiência de um compressor linear operando sem óleo lubrificante." reponame:Repositório Institucional da UFSC, 2014. https://repositorio.ufsc.br/xmlui/handle/123456789/129466.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014<br>Made available in DSpace on 2015-02-05T21:07:51Z (GMT). No. of bitstreams: 1 328468.pdf: 2601802 bytes, checksum: 3cfa9f45165a66c73fb64c996a79fb22 (MD5) Previous issue date: 2014<br>Compressores lineares apresentam baixos carregamentos transversais no pistão, possibilitando a utilização do próprio fluido refrigerante para formar um mancal aerostático na folga pistão-cilindro. Ao passo que esse arranjo reduz o efeito de fricção no mancal

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Rodrigues, Rodrigo Sambugari. "Análise dos esforços dinâmicos transmitidos pelo eixo e pistão ao bloco de compressores herméticos." Florianópolis, SC, 2003. http://repositorio.ufsc.br/xmlui/handle/123456789/85051.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológio. Programa de Pós-Graduação em Engenharia Mecânica.<br>Made available in DSpace on 2012-10-20T14:54:17Z (GMT). No. of bitstreams: 1 192584.pdf: 3209163 bytes, checksum: 309ecd7b137ed57fe091b894cfc6c933 (MD5)<br>O controle de ruído gerado por compressores herméticos tem sido motivo de preocupação crescente por parte de fabricantes destes produtos, a fim de satisfazer às exigências do mercado consumidor. Por isso torna-se necessário conhecer todos os mecanismos dominantes de ruído e vibrações internas no conjunto m

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Gasche, Jose Luiz. "Escoamento de oleo e refrigerante pela folga radial de compressores rotativos de pistão rolante." reponame:Repositório Institucional da UFSC, 1996. https://repositorio.ufsc.br/xmlui/handle/123456789/158015.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnologico<br>Made available in DSpace on 2016-01-08T20:30:35Z (GMT). No. of bitstreams: 1 105510.pdf: 6402528 bytes, checksum: 9a28bd8de018d3dba0b09aa369cb7ba1 (MD5) Previous issue date: 1996<br>O vazamento de gás refrigerante pela folga radial do compressor rotativo de pistão rolante é modelado, assumindo-se como fluído de vazamento tanto o óleo puro como a mistura óleo-refrigerante. Seis modelos de escoamento, considerando ambos os regimes, estacionário e transiente, são desenvolvidos. O modelo mais simples envolve o escoa

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Brancher, Ricardo D' Agnoluzzo. "Desenvolvimento e validação experimental de um modelo para a previsão do desempenho de compressores rotativos de pistão rolante." reponame:Repositório Institucional da UFSC, 2013. https://repositorio.ufsc.br/xmlui/handle/123456789/122921.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2013.<br>Made available in DSpace on 2014-08-06T17:33:36Z (GMT). No. of bitstreams: 1 324688.pdf: 4222954 bytes, checksum: c728756e149719589b936145d592119e (MD5) Previous issue date: 2013<br>O desempenho de um compressor é afetado por ineficiências elétricas, mecânicas e termodinâmicas. As perdas elétricas estão associadas ao motor elétrico e ao dispositivo de partida do compressor, enquanto que as perdas mecânicas ocorrem devido ao atrito em m

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Bezerra, Júnior Jorge Gonçalves. "Análise do desempenho termodinâmico de compressores alternativo e de pistão rolante para fins de miniaturização através do aumento da rotação." Florianópolis, SC, 2011. http://repositorio.ufsc.br/xmlui/handle/123456789/95476.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2011<br>Made available in DSpace on 2012-10-26T02:15:52Z (GMT). No. of bitstreams: 1 295809.pdf: 3426495 bytes, checksum: c98ec70c2c1255539d1f9f51bc24c449 (MD5)<br>A presente dissertação considera uma análise numérica comparativa dos desempenhos termodinâmicos de compressores alternativo e de pistão rolante operando com fluido R134a para aplicação em bombas de calor com 1,4kW de capacidade de aquecimento e temperaturas de evaporação e condensação

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Бурий, Андрій Сергійович, Андрей Сергеевич Бурый, Andrii Serhiiovych Buryi, Віталій Іович Симоновський, Виталий Иович Симоновский та Vitalii Iovych Symonovskyi. "Повышение вибронадежности поршневых компрессорных установок". Thesis, Сумский государственный университет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/40551.

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Проблема обеспечения вибронадежности поршневых машин вследствие полигармонического характера крутящих моментов и неуравновешенности элементов валопровода представляет собой весьма трудноразрешимую задачу. Одним из основных факторов, влияющих на вибронадежность поршневых машин, являются крутильные колебания, особенно на резонансных режимах. Они, как известно, относятся к опасным динамическим нагрузкам, которые нередко приводят к аварийным повреждениям коленчатых валов, редукторов, муфт, демпферов и других элементов валопроводов поршневых машин, в частности компрессоров.

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Супрун, А. В. "Дослідження пластинчасто-ребристих теплообмінників з різними видами насадок". Master's thesis, Сумський державний університет, 2020. https://essuir.sumdu.edu.ua/handle/123456789/81699.

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У роботі виконано тепловий, гідравлічний та конструктивний розрахунки пластинчасто-ребристого апарату компресорної установки з трикутною, прямокутною та трапецієвидною насадками. У результаті розрахунку визначено коефіцієнти тепловіддачі від гарячого та холодного теплоносіїв, геометричні параметри апарату та втрати тиску в апараті. Проведено дослідження ефективності цих апаратів з різними видами насадок та вибрано оптимальний варіант, який працює з найбільшими показниками ефективності по гарячому та холодному теплоносію. Також було розглянуто питання охорони праці на компресорному підп

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Holík, Petr. "Úcpávky turbodmychadel." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230162.

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This master’s thesis deals with theme of turbocharger seals. The aims of a thesis are to compare a turbocharger seals used in PBS Turbo turbochargers and to describe a testing of a seals. Principle of turbocharging and types of turbocharger are described in fist part. Next point of the thesis is describing of a face seals and non-contacting seals. The main part of the thesis describes kinds and reasons of seals testing; also contains comparison between labyrinth seals and piston ring, comparison of seals of PBS Turbo’s turbochargers and assesses the impact of turbocharger angle on the tightnes

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Dib, Ghady. "Thermodynamic simulation of compressed air energy storage systems." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI092.

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Le développement des énergies renouvelables pose la question du stockage de l’énergie électrique. L’utilisation du stockage par air comprimé semble une solution prometteuse dans le domaine du stockage d'énergie : elle se caractérise par une grande fiabilité, un faible impact environnemental et une remarquable densité énergétique stockée (kWh/m3). Jusqu’à présent, l'air comprimé a été utilisé dans de nombreux domaines comme vecteur d’énergie pour stocker différentes formes d'énergies (transport routier, poste pneumatique, plongée sous-marine). Néanmoins, actuellement de nombreux chercheurs se c

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Chang, Shu-Ming, and 張書鳴. "Optimal Design and Driving of Dual Opposed Piston Linear Motor Compressor." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/99041961018910820195.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>88<br>The purpose of this thesis is analysis, design and driving control of the linear motor used for sdual opposed piston compressor. The motion of pistons is sinusoidal wave. After studying the dynamic behavior of such system , the operation frequency is chosen. A magnetic circuit model is developed for optimal design of the linear motor. The design results are further verified by finite-element analysis. At last, a current mode PWM driver is also developed to supply the desired motor coil excitation current.

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LU, PO-JUI, and 盧柏叡. "The study of optimized design for a rolling piston type compressor." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/ebfpbh.

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Cheng, Kuo-Feng, and 鄭國豐. "Numerical Simulations of Flow Fields in a Piston Cylinder on a Compressor." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/90247498481273825087.

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碩士<br>國立雲林科技大學<br>機械工程系碩士班<br>95<br>Recently, variable displacement compressor(VDC) has been widely applied to automotive air conditioning (AAC), and there are many factors influencing the efficiency of the compressor; one possible factor results from the complexity of the structure of flow field. A design of high-efficiency compressor heavily depends on one’s understanding of the flow field. With the limitation of experimental measurement, this present study adopts computational fluid dynamics(CFD) ESI-CFDRC software for analysis. Based on the finite volume method solving Reynolds averaged

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Ou, Li-Jen, and 歐立仁. "System Identification and Synchronous Stroke Control of Ultra-CryocooDual Opposed Piston Linear Motor Compressorl." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/33842685259078241032.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>89<br>This thesis aims to identify the dynamics and to design the stroke controller of linear motor compressor with dual piston. The transfer functions between the current inputs and the strokes of pistons are established by the theory of electromagnetics and system dynamics as the basic of the system identification and controller design. First, We establish the dynamic model by the principal of, and then undertake system ID. Then, we design the controller with the result of the system ID and simulate the controlled system by computer. Final, implement th

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Guo-Wei, Wong, and 翁國維. "Numerical analysis for three-dimensional flow and the performance of the rolling piston type compressor." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/c73x79.

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Gour, Abhay Singh. "Design And Development of Linear Moving Magnet Synchronous Motor Based Twin PTC And HTS Level Sensor for LOX Recondenser." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2673.

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Cryocoolers are closed cycle devices which produce cooling below 120 K. Usually, one or two linear motors are used to drive one pulse tube cryocooler. Cryocoolers are used for various applications like, cooling of infra red detectors, cryo surgical knife, cryogen recondenser etc. In this thesis the design development and testing of Twin Pulse Tube Cryocooler (TPTC) are discussed. TPTC consists of two pulse tubes driven by dual piston head linear compressor. This dual piston linear compressor is operated using single linear motor. Using this configuration, cooling power is doubled with reduced

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Gour, Abhay Singh. "Design And Development of Linear Moving Magnet Synchronous Motor Based Twin PTC And HTS Level Sensor for LOX Recondenser." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2673.

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Cryocoolers are closed cycle devices which produce cooling below 120 K. Usually, one or two linear motors are used to drive one pulse tube cryocooler. Cryocoolers are used for various applications like, cooling of infra red detectors, cryo surgical knife, cryogen recondenser etc. In this thesis the design development and testing of Twin Pulse Tube Cryocooler (TPTC) are discussed. TPTC consists of two pulse tubes driven by dual piston head linear compressor. This dual piston linear compressor is operated using single linear motor. Using this configuration, cooling power is doubled with reduced

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