31 resultados para Metodologia de Projeto

em Universidade Federal do Rio Grande do Norte(UFRN)


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In this thesis, a frequency selective surface (FSS) consists of a two-dimensional periodic structure mounted on a dielectric substrate, which is capable of selecting signals in one or more frequency bands of interest. In search of better performance, more compact dimensions, low cost manufacturing, among other characteristics, these periodic structures have been continually optimized over time. Due to its spectral characteristics, which are similar to band-stop or band-pass filters, the FSSs have been studied and used in several applications for more than four decades. The design of an FSS with a periodic structure composed by pre-fractal elements facilitates the tuning of these spatial filters and the adjustment of its electromagnetic parameters, enabling a compact design which generally has a stable frequency response and superior performance relative to its euclidean counterpart. The unique properties of geometric fractals have shown to be useful, mainly in the production of antennas and frequency selective surfaces, enabling innovative solutions and commercial applications in microwave range. In recent applications, the FSSs modify the indoor propagation environments (emerging concept called wireless building ). In this context, the use of pre-fractal elements has also shown promising results, allowing a more effective filtering of more than one frequency band with a single-layer structure. This thesis approaches the design of FSSs using pre-fractal elements based on Vicsek, Peano and teragons geometries, which act as band-stop spatial filters. The transmission properties of the periodic surfaces are analyzed to design compact and efficient devices with stable frequency responses, applicable to microwave frequency range and suitable for use in indoor communications. The results are discussed in terms of the electromagnetic effect resulting from the variation of parameters such as: fractal iteration number (or fractal level), scale factor, fractal dimension and periodicity of FSS, according the pre-fractal element applied on the surface. The analysis of the fractal dimension s influence on the resonant properties of a FSS is a new contribution in relation to researches about microwave devices that use fractal geometry. Due to its own characteristics and the geometric shape of the Peano pre-fractal elements, the reconfiguration possibility of these structures is also investigated and discussed. This thesis also approaches, the construction of efficient selective filters with new configurations of teragons pre-fractal patches, proposed to control the WLAN coverage in indoor environments by rejecting the signals in the bands of 2.4~2.5 GHz (IEEE 802.11 b) and 5.0~6.0 GHz (IEEE 802.11a). The FSSs are initially analyzed through simulations performed by commercial software s: Ansoft DesignerTM and HFSSTM. The fractal design methodology is validated by experimental characterization of the built prototypes, using alternatively, different measurement setups, with commercial horn antennas and microstrip monopoles fabricated for low cost measurements

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This work was aimed at making a critical analysis of the product wheelchair, both for using four different models, which were objects of study of the dissertation of Cludia Regina Cabral Galvo, entitled Critical Analysis of the Mobility Products Seated a wheelchair - Used by Children and Adolescents with Cerebral Palsy in Natal / RN and other municipalities of Rio Grande do Norte . This product is considered an instrument in the social rehabilitation of great importance for people with physical disabilities. This study aims to position the issue and develop comments on technical up grading of certain models according to the needs of the user. Describes features of four models in search searched through catalogs in order to know its advantages and disadvantages of use. Were presented the definitions of ergonomics and ergonomic aspects to be considered on a design, the study of anthropometry and its recommendations. Discussions the methodology of project design in two parts: the first, on the structuring of design problem (formulation, analysis, synthesis and evaluation.) And the second on the project (design and development, implementation and evaluation and solution). With that review will include the possibilities for a new redesign of the wheelchair, based on forms of adaptation in order to achieve the target that was compressed by the average population studied. Seeks to that this project makes an improvement in quality of life of people in wheelchairs by including these people in society but also the improvement of rehabilitation

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This work describes the study, the analysis, the project methodology and the constructive details of a high frequency DC/AC resonant series converter using sequential commutation techniques for the excitation of an inductive coupled thermal plasma torch. The aim of this thesis is to show the new modulation technique potentialities and to present a technological option for the high-frequency electronic power converters development. The resonant converter operates at 50 kW output power under a 400 kHz frequency and it is constituted by inverter cells using ultra-fast IGBT devices. In order to minimize the turn-off losses, the inverter cells operates in a ZVS mode referred by a modified PLL loop that maintains this condition stable, despite the load variations. The sequential pulse gating command strategy used it allows to operate the IGBT devices on its maximum power limits using the derating and destressing current scheme, as well as it propitiates a frequency multiplication of the inverters set. The output converter is connected to a series resonant circuit constituted by the applicator ICTP torch, a compensation capacitor and an impedance matching RF transformer. At the final, are presented the experimental results and the many tests achieved in laboratory as form to validate the proposed new technique

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There are two main approaches for using in adaptive controllers. One is the so-called model reference adaptive control (MRAC), and the other is the so-called adaptive pole placement control (APPC). In MRAC, a reference model is chosen to generate the desired trajectory that the plant output has to follow, and it can require cancellation of the plant zeros. Due to its flexibility in choosing the controller design methodology (state feedback, compensator design, linear quadratic, etc.) and the adaptive law (least squares, gradient, etc.), the APPC is the most general type of adaptive control. Traditionally, it has been developed in an indirect approach and, as an advantage, it may be applied to non-minimum phase plants, because do not involve plant zero-pole cancellations. The integration to variable structure systems allows to aggregate fast transient and robustness to parametric uncertainties and disturbances, as well. In this work, a variable structure adaptive pole placement control (VS-APPC) is proposed. Therefore, new switching laws are proposed, instead of using the traditional integral adaptive laws. Additionally, simulation results for an unstable first order system and simulation and practical results for a three-phase induction motor are shown

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Le thme du patrimoine culturel architectural et urbain continue d avoir une place importante dans le milieu technique et scientifique. Le concept s est largi et aujourd hui comprend diffrentes procdures de projets d intervention. L importance accorde au thme amne l inclusion de la matire de techniques rtrospectives et aux contenus qui en sont lis: conservation, restauration, restructuration et reconstruction d difices et ensembles urbains, dans les parcours des cours d architecture et d urbanisme au Brsil tablies par le Ministre de l Education Nationale (MEC) dans les annes quatre-vingt-dix, postrieurement incorpors dans les directrices disciplinaires nationales. Nous partons des discussions thoriques et conceptuelles du Domaine du Patrimoine Culturel, ainsi que des principales thories pdagogiques d enseignements et d apprentissage articules au projet. Dans ce contexte les objectifs principaux de cette thse consistent systmatiser et analyser les principales procdures mthodologiques contribuant pour la construction de mthodes d enseignement tourne vers des activits pratiques dans ce domaine. Pour cela, la recherche a t systmatise dans une approche deux niveaux. En ce qui concerne le premier, bas sur des donnes secondaires, neuf cours d architecture et urbanisme ont ts identifis entre institutions publiques d enseignement suprieur dont huit brsiliennes et une franaise, considres reprsentatives en ce qui concerne les pratiques d enseignement de projet et de patrimoine culturel. Trente disciplines ddies la matire ont t galement reconnues initialement, et postrieurement, cinq disciplines qui possdent un emploi du temps ddi la pratique de projet ont aussi t reconnues. Dans le deuxime cas, base sur des donnes primaires, ont ts analyses les mthodologies et les stratgies d enseignement de projet bases sur les dfinitions des matires et des autres lments des plans de travail avec des observations, des entrevues et des questionnaires en trois ateliers. Par rapport aux rsultats nous avons constat que toutes les coles possdent les contenus de la matire, mais peu d entre elles privilgient la relation du projet appliqu au patrimoine culturel. Nous avons constat que les questions des projets dans ce contexte, mme s elles sont considres complexes, ont privilgi le listage et l analyse du site. L atelier qui intgre les fondements des thories de prservation, l histoire de l architecture et urbanisme et techniques anciennes et actuelles, est mis en valeur comme un modle cohrent avec les propositions d intgration des connaissances thoriques et pratiques du projet appliqu la discipline. Bas sur ces constatations il est possible de dmontrer quatre tapes du projet appliqu au patrimoine culturel: 1) les fondements gnraux qui concernent les bases thoriques sur la prservation, histoire et technique rtrospective, par exemple, l appropriation de lois et normes et la sensibilisation de l lve sur les questions de patrimoine culturel; 2) le contacte avec la ralit qui inclut l appropriation du problme partir de ces acteurs, de ces chelles, de cette lecture de site et l analyse de l objet d tude; 3) le dveloppement de la proposition qui inclut programmes (fonctions existantes et propositions), dfinitions du partit (types d intervention), conception (hypothse et discussion) et dfinition de proposition; 4) la finalisation du projet qui consiste dvelopper la proposition avec sa reprsentation graphique et sa prsentation finale. Nous concluons que le projet en Domaine du Patrimoine Culturel demande une attention spciale et doit tre prsent dans les cursus considrant les principes gnraux ncessaires la formation de l lve. Le binme projet / patrimoine signifie avoir dans le cursus universitaire les contenus et questions ncessaires les connaissances, les variables et possibilits existantes dans le projet appliqu au patrimoine culturel de faon ce que ces connaissances soient incorpores dans l exercice de projet et n apparaissent pas comme un simple contenu thorique sans articulation avec la pratique. Naturellement ces conclusions n puisent pas la rflexion sur la question. Nous esprons que les analyses faites contribuent dfinir des mthodologies d enseignements capables d tres vrifies et testes dans la pratique en salle de cours, et puisse collaborer avec les nouvelles recherches surtout celles qui ont pour but des nouvelles thories pdagogiques d enseignement apprentissage du projet en Domaine du Patrimoine Culturel

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Le thme du patrimoine culturel architectural et urbain continue d avoir une place importante dans le milieu technique et scientifique. Le concept s est largi et aujourd hui comprend diffrentes procdures de projets d intervention. L importance accorde au thme amne l inclusion de la matire de techniques rtrospectives et aux contenus qui en sont lis: conservation, restauration, restructuration et reconstruction d difices et ensembles urbains, dans les parcours des cours d architecture et d urbanisme au Brsil tablies par le Ministre de l Education Nationale (MEC) dans les annes quatre-vingt-dix, postrieurement incorpors dans les directrices disciplinaires nationales. Nous partons des discussions thoriques et conceptuelles du Domaine du Patrimoine Culturel, ainsi que des principales thories pdagogiques d enseignements et d apprentissage articules au projet. Dans ce contexte les objectifs principaux de cette thse consistent systmatiser et analyser les principales procdures mthodologiques contribuant pour la construction de mthodes d enseignement tourne vers des activits pratiques dans ce domaine. Pour cela, la recherche a t systmatise dans une approche deux niveaux. En ce qui concerne le premier, bas sur des donnes secondaires, neuf cours d architecture et urbanisme ont ts identifis entre institutions publiques d enseignement suprieur dont huit brsiliennes et une franaise, considres reprsentatives en ce qui concerne les pratiques d enseignement de projet et de patrimoine culturel. Trente disciplines ddies la matire ont t galement reconnues initialement, et postrieurement, cinq disciplines qui possdent un emploi du temps ddi la pratique de projet ont aussi t reconnues. Dans le deuxime cas, base sur des donnes primaires, ont ts analyses les mthodologies et les stratgies d enseignement de projet bases sur les dfinitions des matires et des autres lments des plans de travail avec des observations, des entrevues et des questionnaires en trois ateliers. Par rapport aux rsultats nous avons constat que toutes les coles possdent les contenus de la matire, mais peu d entre elles privilgient la relation du projet appliqu au patrimoine culturel. Nous avons constat que les questions des projets dans ce contexte, mme s elles sont considres complexes, ont privilgi le listage et l analyse du site. L atelier qui intgre les fondements des thories de prservation, l histoire de l architecture et urbanisme et techniques anciennes et actuelles, est mis en valeur comme un modle cohrent avec les propositions d intgration des connaissances thoriques et pratiques du projet appliqu la discipline. Bas sur ces constatations il est possible de dmontrer quatre tapes du projet appliqu au patrimoine culturel: 1) les fondements gnraux qui concernent les bases thoriques sur la prservation, histoire et technique rtrospective, par exemple, l appropriation de lois et normes et la sensibilisation de l lve sur les questions de patrimoine culturel; 2) le contacte avec la ralit qui inclut l appropriation du problme partir de ces acteurs, de ces chelles, de cette lecture de site et l analyse de l objet d tude; 3) le dveloppement de la proposition qui inclut programmes (fonctions existantes et propositions), dfinitions du partit (types d intervention), conception (hypothse et discussion) et dfinition de proposition; 4) la finalisation du projet qui consiste dvelopper la proposition avec sa reprsentation graphique et sa prsentation finale. Nous concluons que le projet en Domaine du Patrimoine Culturel demande une attention spciale et doit tre prsent dans les cursus considrant les principes gnraux ncessaires la formation de l lve. Le binme projet / patrimoine signifie avoir dans le cursus universitaire les contenus et questions ncessaires les connaissances, les variables et possibilits existantes dans le projet appliqu au patrimoine culturel de faon ce que ces connaissances soient incorpores dans l exercice de projet et n apparaissent pas comme un simple contenu thorique sans articulation avec la pratique. Naturellement ces conclusions n puisent pas la rflexion sur la question. Nous esprons que les analyses faites contribuent dfinir des mthodologies d enseignements capables d tres vrifies et testes dans la pratique en salle de cours, et puisse collaborer avec les nouvelles recherches surtout celles qui ont pour but des nouvelles thories pdagogiques d enseignement apprentissage du projet en Domaine du Patrimoine Culturel

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O objeto de estudo desta tese o ensino de projeto de arquitetura no contexto acadmico brasileiro. O trabalho procura analisar esse objeto nos aspectos relativos ao ensinar a fazer e ao aprender a fazer , por meio de uma perspectiva epistemolgica e cognitiva, a partir da produo cientfica dos Seminrios UFRGS (1985) e Projetar (2003-2011) sob o olhar de trs estados constitutivos: conservao, permanncia e transformao. A metodologia de investigao qualitativa e seus pressupostos so investigad os por meio do mtodo hipottico-dedutivo em busca de um conhecimento aproximativo. Dentro do universo pesquisado, as hipteses conduzem: primeiro, investigao e caracterizao de estruturas que se conservam; segundo, investigao e levantamento de valores e conceitos que permanecem adequados por sua capacidade de adaptao s mudanas e paradigmas; e, terceiro, por procurarem destacar prticas pedaggicas que indicam novos caminhos na maneira de agir e de se pensar o ensino de projeto de arquitetura. A pesquisa demonstrou que, embora em menores propores, ainda se conservam aes e posturas pedaggicas que: valorizam os ideais funcionalistas e racionalistas da arquitetura; adotam posturas deterministas, caminhos prescritivos ou intuitivos no ensino da concepo arquitetural; no apresentam clareza metodolgica na abordagem da problemtica arquitetnica; os contextos urbanos so pouco explorados na experimentao; utilizam um sistema de concepo baseado em princpios estticos cannicos e universais, sem problematizar as causas da transformao da arquitetura contempornea e qual o seu papel numa sociedade complexa e diversificada. Com relao s novas perspectivas encontradas, a anlise da produo cientfica demonstrou que a prtica pedaggica do ensino de projeto de arquitetura no Brasil passa por transformaes crticas valiosas. Essa constatao foi percebida, por meio, tambm, de reflexes e de prticas pedaggicas que valorizam a integrao de contedos; que possuem um discurso crtico e conciliador com relao necessidade de renovao de prticas, paradigmas, meios e contedos; que esto abertas s posturas cooperativas e s estratgias para a constituio de um corpo terico-prtico para o ensino do projeto que no se limite ao campo da arquitetura; que reconhecem a importncia das novas tecnologias computacionais na concepo projetual e no ensino do projeto, assim como, as tecnologias e estratgias que atualizam as solues projetuais no uso adequado dos recursos ambientais; que consideram o espao acadmico como um lugar propcio para as experincias projetuais e pedaggicas; que manifestam um esforo em considerar a participao do usurio, assim como em realizar um processo de apreenso de contextos complexos como objeto de estudo, adotando uma postura de valorizao do processo projetual. O trabalho conclui que a educao do arquiteto deve estar atenta aos aspectos relativos incluso da realidade sociocultural e ambiental como referncia para o fazer arquitetural em detrimento da primazia dada racionalidade tcnica, uma vez que essa realidade permite a mediao, entre o ser e o mundo , como uma estratgia que supera qualquer antecipao programtica e viabiliza a transformao e a construo do prprio ser e do mundo . Assim, se o aprender fazendo necessrio para a formao do arquiteto, que esse fazer seja refletido e retroalimente a prtica

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Until the early 90s, the simulation of fluid flow in oil reservoir basically used the numerical technique of finite differences. Since then, there was a big development in simulation technology based on streamlines, so that nowadays it is being used in several cases and it can represent the physical mechanisms that influence the fluid flow, such as compressibility, capillarity and gravitational segregation. Streamline-based flow simulation is a tool that can help enough in waterflood project management, because it provides important information not available through traditional simulation of finite differences and shows, in a direct way, the influence between injector well and producer well. This work presents the application of a methodology published in literature for optimizing water injection projects in modeling of a Brazilian Potiguar Basin reservoir that has a large number of wells. This methodology considers changes of injection well rates over time, based on information available through streamline simulation. This methodology reduces injection rates in wells of lower efficiency and increases injection rates in more efficient wells. In the proposed model, the methodology was effective. The optimized alternatives presented higher oil recovery associated with a lower water injection volume. This shows better efficiency and, consequently, reduction in costs. Considering the wide use of the water injection in oil fields, the positive outcome of the modeling is important, because it shows a case study of increasing of oil recovery achieved simply through better distribution of water injection rates

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Many challenges have been presented in petroleum industry. One of them is the preventing of fluids influx during drilling and cementing. Gas migration can occur as result of pressure imbalance inside the well when well pressure becomes lower than gas zone pressure and in cementing operation this occurs during cement slurry transition period (solid to fluid). In this work it was developed a methodology to evaluate gas migration during drilling and cementing operations. It was considered gel strength concept and through experimental tests determined gas migration initial time. A mechanistic model was developed to obtain equation that evaluates bubble displacement through the fluid while it gels. Being a time-dependant behavior, dynamic rheological measurements were made to evaluate viscosity along the time. For drilling fluids analyzed it was verified that it is desirable fast and non-progressive gelation in order to reduce gas migration without affect operational window (difference between pore and fracture pressure). For cement slurries analyzed, the most appropriate is that remains fluid for more time below critical gel strength, maintaining hydrostatic pressure above gas zone pressure, and after that gels quickly, reducing gas migration. The model developed simulates previously operational conditions and allow changes in operational and fluids design to obtain a safer condition for well construction

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The Six Sigma methodology has received considerable attention in the last two decades. This is due to its great potencial to reduce processes variability, through the use of accurate data, facts and statistical techniques. The methodology seeks to improve the quality of products and services, maximizing the company s financial performance. Specifically, its implementation and results in medium-sized textile enterprises is unknow, although there are signs that the methodology can be applied with success. Considering this scenario, the goal of this research is to describe the application of the Six Sigma methodology in a mdium-sized textile company specialized in the production of male shirts in the satate of Rio Grande do Norte, Brazil. First, we present a literature review, seeking to highlight the themes of quality, Six Sigma and its methodology for improvement. Then, we show the implementation of the project selected, depicting the steps and procedures that must be performed. The results confirm the efficiency of Six Sigma in providing significant gains to companies. It is observed substantial improvements in the speed of product development and the flexibility of the parts produced, reducing the process lead time from 12.5 to 6.2 days, which means a performance improvement of over 50%. This leads also to cultural and behaviour change, creating motivation for implementation of new projects and a continuous search for knowledge

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The jangadas (brazilian fishing rafts) are rudimentary artisanal vessels intrinsic to the Northeast of Brazil. The fishery with jangadas is highly representative in the State of Rio Grande do Norte, and source of income for many families in addition to being a strong cultural icon. Is still alive despite the difficulties, bringing the history and customs of the fishermen and their people. However, is in process of extinction due to factors such as the low profitability of the activity, tourism and urbanization. From the understanding of activity involving their context and circumstances, based on identified problems regarding the conditions of use of jangadas as the unpredictability, the risk of accidents, poor working conditions, hygiene and housing, this dissertation aims to: analyzing the design of the jangada on the beach of Ponta Negra and its relationship with the activity in relation to health, safety, productivity and environment, and from such assessments, together with the results achieved during the workshops of the project, proposing a cart to move the raft, adapted to the local fisherman activity studied. To perform analysis of jangadeira activity, we used a methodology based on ergonomic work analysis - AET (WISNER, 1987; GURIN, 2001; VIDAL, 2008, SALDANHA, 2004 and Carvalho, 2005). For data collection were used observational and interaction methods as a conversational action, verbalizations, photographs and video. It is emphasized that the search for solutions appropriate to the jangadeira activity was possible through the collaboration of several people, not just an informational level and understanding during the work activity, but effectively contributing to the making decisions

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The bobbin lace, a secular art in the process of extinction in the Village Ponta Negra in Natal, Brazil, was one of the main means of income generation for some families in town, but over time, there was growing disaffection of the younger generation to learn and practice this art, due to the high demand of time for production and insufficient and not guaranteed financial return . This project aims to promote the recovery of control over the product in the production of bobbin lace in the village of Ponta Negra, by design and implementation of a workshop for the transfer of drawing techniques in the Production Center of Craft in Village of Ponta Negra. This design was based on the methodology of Ergonomic Work Analysis and in the concepts of anthropotechnology and technology social. The ergonomic analysis, by advocating and enforcing the social and technical building, was essential for the modeling of this workshop, as allowed the construction of a social participative device , with the participation of the community groups and the external group of researchers, in a process of social construction technique. As a result, it was observed that the transfer of technical design of bobbin lace molds came to complement the learning of art office, providing solutions to promote the sustainable development of the group of tenants, in an attempt to reduce the risk of extinction eminent, and also contributed to reactivate a network of economic activities interconnected to the craft, such as the production of cushions, lace and easels

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Ensuring the dependability requirements is essential for the industrial applications since faults may cause failures whose consequences result in economic losses, environmental damage or hurting people. Therefore, faced from the relevance of topic, this thesis proposes a methodology for the dependability evaluation of industrial wireless networks (WirelessHART, ISA100.11a, WIA-PA) on early design phase. However, the proposal can be easily adapted to maintenance and expansion stages of network. The proposal uses graph theory and fault tree formalism to create automatically an analytical model from a given wireless industrial network topology, where the dependability can be evaluated. The evaluation metrics supported are the reliability, availability, MTTF (mean time to failure), importance measures of devices, redundancy aspects and common cause failures. It must be emphasized that the proposal is independent of any tool to evaluate quantitatively the target metrics. However, due to validation issues it was used a tool widely accepted on academy for this purpose (SHARPE). In addition, an algorithm to generate the minimal cut sets, originally applied on graph theory, was adapted to fault tree formalism to guarantee the scalability of methodology in wireless industrial network environments (< 100 devices). Finally, the proposed methodology was validate from typical scenarios found in industrial environments, as star, line, cluster and mesh topologies. It was also evaluated scenarios with common cause failures and best practices to guide the design of an industrial wireless network. For guarantee scalability requirements, it was analyzed the performance of methodology in different scenarios where the results shown the applicability of proposal for networks typically found in industrial environments

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The purpose of this study was to develop a pilot plant which the main goal is to emulate a flow peak pressure in a separation vessel. Effect similar that is caused by the production in a slug flow in production wells equipped with the artificial lift method plunger lift. The motivation for its development was the need to test in a plant on a smaller scale, a new technique developed to estimate the gas flow in production wells equipped with plunger lift. To develop it, studies about multiphase flow effects, operation methods of artificial lift in plunger lift wells, industrial instrumentation elements, control valves, vessel sizing separators and measurement systems were done. The methodology used was the definition of process flowcharts, its parameters and how the effects needed would be generated for the success of the experiments. Therefore, control valves, the design and construction of vessels and the acquisition of other equipment used were defined. One of the vessels works as a tank of compressed air that is connected to the separation vessel and generates pulses of gas controlled by a on/off valve. With the emulator system ready, several control experiments were made, being the control of peak flow pressure generation and the flow meter the main experiments, this way, it was confirmed the efficiency of the plant usage in the problem that motivated it. It was concluded that the system is capable of generate effects of flow with peak pressure in a primary separation vessel. Studies such as the estimation of gas flow at the exit of the vessel and several academic studies can be done and tested on a smaller scale and then applied in real plants, avoiding waste of time and money.

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The present work has as objective to present a method of project and implementation of controllers PID, based on industrial instrumentation. An automatic system of auto-tunning of controllers PID will be presented, for systems of first and second order. The software presented in this work is applied in controlled plants by PID controllers implemented in a CLP. Software is applied to make the auto-tunning of the parameters of controller PID of plants that need this tunning. Software presents two stages, the first one is the stage of identification of the system using the least square recursive algorithm and the second is the stage of project of the parameters of controller PID using the root locus algorithm. An important fact of this work is the use of industrial instrumentation for the accomplishment of the experiments. The experiments had been carried through in controlled real plants for controllers PID implemented in the CLP. Thus has not only one resulted obtained with theoreticians experiments made with computational programs, and yes resulted obtained of real systems. The experiments had shown good results gotten with developed software