DPI - Departamento Acadêmico de Processos Industriais
URI permanente desta comunidadehttps://ri.ifam.edu.br/handle/4321/505
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27 resultados
Resultados da Pesquisa
Item Energy and exergy analysis of a adsorption chiller(2019-10-20) Soares, José Josimar; Gomes, Joseh Emmanuel de Sousa; Gurgel, José Maurício Alves de Matos; Melo, Francisco José AraújoThis paper shows the energy and exergy analysis of a two-bed adsorption chiller. The system was developed at LES/CEAR/UFPB, and constitutes of two adsorption reactors, a condenser and an evaporator, which function independently. Cycle times and secondary flow switching control scheduling is performed using a LabVIEW® interface that allows automatically secondary flow control through the cycle management system (SGC). The experimental tests were performed with the silica gel / water adsorptive pair. The specific cooling capacity (SCP) and coefficient of performance (COP) of the two-reactor chiller were 81.4 W kg-1 and 0.52 respectively, with an exergetic efficiency of 8.2% for the best working conditions, represented by the triplet 72/30/15 ℃ and a cycle time of 35 min. The results reached the levels of recent publications of literature describing models with the same characteristics. The maximum temperature required for the operation of this system is compatible with the use of low-temperature industrial thermal waste and flat type solar collectors, which may allow its production on a commercial scale.Item Os aspectos da quarta revolução industrial sob a perspectiva da manutenção(2019-11-14) Coelho, Bruno Barros; Chagas, Sidney Assis; http://lattes.cnpq.br/1705258854443084; Chagas, Sidney Assis; http://lattes.cnpq.br/1705258854443084; Lima, Placido Ferreira; http://lattes.cnpq.br/0865439005714077; Barros, Rodson de Oliveira; http://lattes.cnpq.br/9424687587691792The fourth industrial revolution has been called Industry 4.0. It is a revolution based on the inclusion of technologies such as Cyber-Physical Systems, the Internet of Things and the big data in the production processes, allowing greater autonomy in decision making and greater transparency in the processes. Human-machine relations. This paper aimed to bring a series of concepts related to Industry 4.0, as well as to verify perspectives and synthesize information about maintenance systems in the new industrial age as well as to identify all the requirements for the implementation of maintenance systems in the new industrial age, job. Therefore, it is a bibliographical work, which pretends to be another tool of knowledge about the chosen theme.Item Diretrizes para construção de caixas para instalação de elevadores elétricos de passageiros(2016-12-07) Almeida, Marcos Ramon Lima; Chagas, Sidney Assis; http://lattes.cnpq.br/1705258854443084; Chagas, Sidney Assis; http://lattes.cnpq.br/1705258854443084; Monteiro, Alberto de Castro; http://lattes.cnpq.br/8300386519703896; Machado, Carlos José Baptista; http://lattes.cnpq.br/2613703649034215Elevators are an essential equipment for the operation of almost all developments, such as large commercial and residential buildings, hotels, malls and hospitals. In cases where elevators do not work properly or stop frequently, the success of this ploy can be seriously compromised due to users' fear of getting stuck in the equipment. The present work show the guidelines for the construction of the elevator boxes to minimize or exclude mistakes in the construction stage, which end up harming and even unfeasible the services of installation, bringing expenses and inconvenience for who was hired (works) as well as for the Contractors (manufacturers of lifts). These guidelines will provide for those responsible for the execution of the boxes the information needed to understand the process and procedures to avoid the construction problems that are primarily responsible for the problems faced by the assembly that end up impacting the final delivery of the lift. The data were obtained through surveys, interviews and observation in Manaus works in the most different stages, both pre-installation, assembly and technical assistance. In this way it was possible to confirm the difficulties encountered and how the pre-install the processes impact on the assembly services and the final delivery of the equipment. It has been realized by an orientation of the whole process in the integration and follow-up through a detailed schedule of activities by the contractor and the contractor can minimize many problems and unnecessary expenses of time and money in this process for both involved.Item Análise da influência do raio de ponta de uma ferramenta na rugosidade de um torneamento de aço 1045(2016-12-07) Bernardino, Karla Monique Cruz; Monteiro, Alberto de Castro; http://lattes.cnpq.br/8300386519703896; Monteiro, Alberto de Castro; http://lattes.cnpq.br/8300386519703896; Sarkis, Sávio Raider Matos; http://lattes.cnpq.br/6674204758775154; Machado, Carlos José Baptista; http://lattes.cnpq.br/2613703649034215This paper presents a study on the influence of pellet radius in steel processing in 1045 and aims to conduct theoretical study of machining and their parameters that influence the roughness and the machining conditions due to its cutting conditions and machinery and equipment and changes along the technology. All these factors contribute to different effects on the surface quality of a machining process, there are several ways to quantify and qualify these different changes that will also be explained in the theoretical study. The equipment and the history of evolution turning process help to understand how it was allowing the control of these data and studies of the same for improvement of production processes, and they were becoming more demanding and the final customer. The normalization of machining were also suiting the requirements of industries. This paper analyzes the roughness of machined surfaces in the cylindrical turning, conducting a study on the parameters: Cutting speed (Vc), forward (Fn) and mainly analyzing the influence of tip radius on the final quality measuring that data and putting in graphics for best viewing insert which applies the best view of the finishing process. It also performs a theoretical roughness compared to the actual achieved in assays allowing visualizing the process difference calculated for practice.Item Estudo do dimensionamento de soldas de filete produzidas pelo processo de soldagem por eletrodo revestido(2016-12-06) Lêdo, Getro Felipe Simões; Sarkis, Sávio Raider Matos; http://lattes.cnpq.br/6674204758775154; Sarkis, Sávio Raider Matos; http://lattes.cnpq.br/6674204758775154; Gama, Marcelo Martins da; http://lattes.cnpq.br/2955108730907462; Nascimento, Andrea Regina Leite do; http://lattes.cnpq.br/2993012897803928The enormous need for cost reduction has proved to be a determining factor in ensuring the survival and competitiveness of companies in various industries. The wide application of fillet welds, about 80% of all world production, generated the motivation to elaborate the present study on the dimensioning of fillet welds produced by the process of welding to e lectric arc by coated electrode. The aim of the present study was to evaluate the relationship between the resistance and the length of the weld bead, as well as to discuss the behavior of the efficiency and deposition rate of the E6013 and E7018 electrode s as a function of optimum current v alues, as well as to determine t he costs of welding metal using different electrodes. This allowed us to perform a quantitative evaluation on each of the factors considered, besides allowing a qualitative discussion on t he influence of the welding current, the rate and efficiency of deposition of the electrodes considered and the discontinuities in the increase of the welding costs.Item Análise comparativa de juntas soldadas com variação de tensão em chapa de aço carbono 1020 com eletrodo E7018(2016-12-07) Oliveira Neto, Erasmo Aquino de; Gama, Marcelo Martins da; http://lattes.cnpq.br/2955108730907462; Gama, Marcelo Martins da; http://lattes.cnpq.br/2955108730907462; Nascimento, Andrea Regina Leite do; http://lattes.cnpq.br/2993012897803928; Sarkis, Sávio Raider Matos; http://lattes.cnpq.br/6674204758775154This work presents a comparative analysis of top joint in welding with E7018 coated electrode in 1020 carbon steel sheet, by tensile test, and aims at the realization and analysis of resistance of welded metal to sheets welded with the same process, but with different amps. In order to carry out a study of the results, the present work proposes a comparative analysis of bodies of equal thickness of 1/4 ", with posterior tensile testing and analysis of the results by stress strain diagrams. In order to improve the knowledge about the work, is made the bibliographic review study with the main topics related to the study, for example, symbologies used in the welding, welding equipment used in industry, coated electrode concept, as well as its specifications of use, safety standards that are used, the sample body model and the type of test used. The steel used in the study has a low carbon content, on average 0.2%, and is composed of manganese, phosphorus.For the preparation of the test specimens, the plasma cutting process was used due to its ease and simplicity of use. The welding process chosen was the electrode coating with direct current from ESAB MOD OrigoTM ARC 406 machine. The results show the differences in the mechanical strengths, the number of passages and the point of rupture of the weld for each type of current.Item Sistema integrado de logística: o desafio de transporte e armazenamento de peças mecânicas para região norte(2016-06-15) Carvalho, Evellyn da Silva; Gama, Marcelo Martins da; http://lattes.cnpq.br/2955108730907462; Gama, Marcelo Martins da; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4509892H3&tokenCaptchar=03AGdBq26jq5_mBDMa92Jl-H8mNaVQtOgRnvyuRiH_WxUf_ZDF8ZhV18sXLyi93bV7vGJ7GklBuwmNqC82KSinqUQztUQWgdljQ8URIDKEt9w7dprV_jPGHgQdlRcv2UD3p4I86FKyCTuMZB4n7cXbJ5wUPeGGTokYTEX16U4pcBlyuvfg6ykNAUIW11J2mwlaLW9Qq8jS2cDV3toPQhceGFzBUqlL0zzpbg76T_cwwt6TxnAjxxrQJ-0ckyuqpXFuaLOTxf9AVSAbKMPVvZ8rDFYe4TXO3EKPmrGta0Cf68tHkpmPsAK54XJ9yC0vYpv_looolK640hCYW3KF8UCLOHKr5T2YseZWqwWay09xqJ6UWZXmrwWpK-3uimHFvrPisqQa_xLSyBEpbDlmKuJUfdtQfyUy3cUwQgCVfULM-J5O8Yij3WO4oHja0r323c_DYj1YUod8hx0GNjgdG4A6b0aACrTOmp2ZUg; Nascimento, Andrea Regina Leite do; http://lattes.cnpq.br/2993012897803928; Santos, Antônio Aurélio Pereira dos; http://lattes.cnpq.br/4252052970703374Logistics regarding the issues were always placed at a level that was not up to their relevance. The issue to be addressed is much in evidence in all industrial sectors: Logistics. Many companies use logistics not enjoying their real virtues that are the increased level of service, productivity and cost reduction. These logistics virtues are obtained by its intrinsic characteristics as control, integration and coordination of all activities involved in the system, from design to the final product. The research tries to show the attempts of a problem solution. Trying to show so that everyone understands how difficult it is facing, and is intended to address. The Industrial Pole of Manaus is presented today as a new option for export. The region is undergoing a process of transition to achieve balance its trade deficit and still quite becomes an export base of many products produced there. The parts industry requires high flexibility by a logistics operator. One of the main demands of those who operate in this segment is to provide intelligent services and advanced technological systems for storage, since the speed in separation and speed of deployment is critical, and the delivery time is very important. Thus the main objective of this study is to conduct research about the main logistics characteristics of parts in the Amazon.Item Estruturação de um plano de avaliação de confiabilidade em um processo de produção de condicionador de ar Split 12.000 BTUs frio tipo Hi Wall.(2017-06-23) Silva, Regino Lopes da; Machado, Carlos José Baptista; http://lattes.cnpq.br/2613703649034215; Machado, Carlos José Baptista; http://lattes.cnpq.br/2613703649034215; Santos, Antônio Aurélio Pereira dos; http://lattes.cnpq.br/4252052970703374; Rodrigues Filho, João Nery; http://lattes.cnpq.br/3860803328978892Air conditioners are of relevant importance today, especially in a city with an equatorial climate like the city of Manaus. In this sense, the present study had the concern of carefully observing the reliability tests of a certain Company of the Industrial Pole of Manaus in order to ensure that such products - conventional Split Hi wall and inverter of 12,000 btus - reach the end consumer with quality, fully functioning, inherent in a durable consumer good. For this, 15 samples of each model were evaluated, in the visual aspects - internal and external -, electrical, mechanical and functional. Performance tests were performed in the laboratory in order to evaluate if the newly manufactured products were within the required parameters. Finally, the results were satisfactory, demonstrating that of the evaluated sample only one product was defective. At the same time, in the post-sale analysis, the results were also below the limit considered adequate which is a maximum of 0.9, SCR (Service Call Rate) goal stipulated by the company, thus demonstrating that the defect index is incipient. In this sense, it is inferred that the products are properly tested and arrive satisfactorily to the final consumer, so that their expectations in the acquisition of the product are met.Item Reaproveitamento energético em um sistema de vapor instalado em uma empresa do Pólo Industrial de Manaus(2017-06-28) Sousa, Müller de Almeida; Machado, Carlos José Baptista; http://lattes.cnpq.br/2613703649034215; Machado, Carlos José Baptista; http://lattes.cnpq.br/2613703649034215; Costa, José Francisco de Caldas; Rodrigues Filho, João Nery; http://lattes.cnpq.br/3860803328978892This work contains a study to determine the best way to reuse energy in a steam system installed in the company of the industrial pole of Manaus, showing a current situation of condensate return systems, indicating as measures and taking and guiding investments. For a moment, a survey of a series of data essential to the study with a company, a system of condensate return systems and a study to identify the best system of reutilization of this thermal energy, which indicated the system of reutilization with exchanger Of Heat as the most appropriate for such a situation as it would provide great fuel economy and a temperature rise in the boiler feed water.Item Apresentação de plano de manutenção, operação e controle desenvolvido para aplicação no sistema de ar-condicionado do edifício sede da TV universitária da Universidade Federal do Amazonas(2017-06-26) Pessoa, Marcelo Girão; Machado, Carlos José Baptista; http://lattes.cnpq.br/2613703649034215; Machado, Carlos José Baptista; http://lattes.cnpq.br/2613703649034215; Rodrigues Filho, João Nery; http://lattes.cnpq.br/3860803328978892; Santos, Antônio Aurélio Pereira dos; http://lattes.cnpq.br/4252052970703374Throughout its history, the air conditioner has evolved and consolidated as an indispensable machine for the population, for providing its well-being, this one directly related to thermal comfort, and also for the achievement of the various productivity goals of companies or institutions . However, because it is a machine that treats the air in a closed environment, if it is not properly maintained, it can negatively affect the users' health, causing illnesses or worsening the clinical condition of people with preexisting diseases and even taking To death. To avoid such problems, the Ministerial Order No. 3,523/98 was regulated by the Ministry of Health, which establishes rules and procedures to be practiced in collective settings. The city of Manaus has a hot and humid climate, where the use of air conditioning is undoubtedly necessary, so the UFAM TV building located in the urban area of the city requires air conditioning machines for its operation. This study seeks to present the PMOC required to the system of air conditioning of such a building so that it meets the current legislation. For this, an inventory of the air conditioning machines installed in the building was carried out to obtain information relevant to the installed project. Visual inspections were performed at the facility to detect possible problems. Finally, as a result, the PMOC was presented and could be implemented, in accordance with current regulations. Therefore, the entire development process was salutary for understanding, as well as for the proposal of the resulting Maintenance, Operation and Control Plan.
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