Utilização de geotecnologias no monitoramento de processos erosivos e movimentos de massa em trecho da faixa de dutos Rio de Janeiro - Belo Horizonte

The transportation of oil through pipelines raises a concern related to safety and environmental impacts they may cause, especially when exposed to risks that affect their integrity. Among the natural phenomena that can affect the pipelines are erosion and landslides. Considering the large territory involving the pipelines, remote sensing tools have a great applicability for data acquisition. For this, visual analysis techniques were applied to perform change detection in order to monitor erosion features and landslides along a stretch of pipeline Rio de Janeiro – Belo Horizonte, in the state of Rio de Janeiro. The work involved the characterization of the study area as well as the erosion and landslide processes, through bibliographical data. The satellite image processing and the application of change detection techniques were developed in two scenes for the years 2002 and 2010. It was noted a small increase in the number of the identified features, however with regard to their area, a decrease of 21.7% was observed

Aplicação de um sistema de monitoramento remoto para auxiliar na manutenção preditiva e preventiva de componentes de uma subestação

The increase in energy consumption in the world has caused the electrical systems becoming ever larger and more complex. Because of that becomes necessary to use special tools to efficiently manage the equipment present in these systems. Nowadays a tool very used is the remote monitoring of assets which works collecting signals using sensors processing these signals and make them available to the system user. So the user can use informations that may assist him efficiently in making decisions when doing a maintenance. The system is technically efficient since it improves the measurement process and enables the asset management of a substation by using advanced technology for that and economically viable especially in cases where the user is subject to monetary loss due an interruption of power supply

Análise crítica de contratos técnicos como ferramenta para melhoria da gestão da manutenção

Currently, due to the highly competitive search among industries are becoming more tools for managing product that provides higher availability and therefore profitability. Maintenance as a strategic sector and of fundamental importance in business, it seeks to maximize availability and available resources, minimizing costs and waste, which directly impacts the company's results. The present work has as main objective the review of contracts for maintenance services for companies contracted by a chemical company in the Paraíba Valley, since most of its maintenance services are outsourced, and raise these contracts which are more critical and higher risk to the company's success, thus creating a tool for decision-making by maintenance managers in the act of seeking renewals or new contracts to provide services. As a result after drawing up a standard procedure for contracting of services and a better structuring of the same, we developed a method for the calculation of the criticality of the contracts and based on these calculations, charts were prepared which showed that the current scenario of maintenance contracts the company studied. Thus it is possible to evaluate the contracts which are most critical to the success or failure of the company studied, and also pave the way for further studies on how this criticality of a contract can affect the relationship, the contractor x contracted

Auxílio a tomada de decisão na inclusão de sobressalentes de manutenção em estoque utilizando um sistema especialista fuzzy

In the current economic scenario of constant changes, industries seek to increase their profitability decreasing inventory levels. Maintenance and maintenance management, combined with the inventory management of spare parts, has assumed a position of competitive advantage in business. Stock only what you need has become a difficult decision for managers, who are faced with the lack of models and criteria to assist this decision-making. This work proposes a method which supports decision making, on a MATLAB modeling, using criteria established by an expert and his maintenance workers team, focusing on no regular demand of spare parts. The proposed model was adequate to the needs of the company and the maintenance manager in the decision on the storage

Padronização das atividades de manutenção para implementação de um projeto de TPM

La mission de ce rapport se trouvée dans un projet major de mise en place de la TPM dans l’usine de Biotechnologie à Huningue. Le même sera utilisé comme pilote pour les autres sites de l’entreprise. Le but spécifique de ma mission au sein de Novartis, était d’identifier les activités principales des équipes de maintenance, étudier la façon de travailler et la manière comment ils étaient renseignées dans leurs Ordres de Travail (OT). Ensuite, proposer un standard de flux de travail et façon de renseigner les OT et ainsi organiser la façon de travailler et pouvoir planifier les activités de maintenance, ayant une bonne base de données pour faire les indicateurs

Estudo da viabilidade da aplicação de técnicas preditivas na manutenção de reatores batelada

This study aims to analyze the feasibility of using predictive techniques like thermography, vibration analysis, eddy current, liquid penetrant, visual examination and ultrasound in equipment as batch reactors of the type used in a biodiesel production company. This study is based on: analysis of the practices of corrective and preventive maintenance commonly adopted in the company in question, the cost and time spent for such activities and the potential savings and revenue generation that can be after implementation of these techniques on the analysis of maintenance current

Planejamento e organização das atividades de manutenção em instalações elétricas prediais e seus componentes

Are presented on this paper, concepts of corrective, preventive and predictive maintenances, following the prerequisites for planning and implementation of a maintenance plan. You also find the theoretical introduction of some measurement instruments accompanied by the necessary and recommended activities during routine maintenances of the electrical equipments in a building installation. Using case study, it is possible to assess a real maintenance plan applied to two occupied floors in a financial institution. The developing of a case study consolidates the effectiveness of the present concepts on this theoretical introduction and shows that the current maintenance plan can be improved in order to obtain better results on company productivity and reliability of equipments. As a conclusion, we can notice the importance of a solid maintenance plan and the need of including this theme on the graduation in Electrical Engineering

Implementação da metodologia TPM em uma indústria do setor de higiene pessoal, saúde e beleza

This work presents a project of Action Search in a consumption industry of the sector of personal care, health and beauty. Following the implementation steps of Autonomous Maintenance Pillar of TPM methodology, stands for Total Productive Maintenance, this work aims to ensure the advancement of some machines in a production line of the company to the next steps of the methodology implementation, demonstrating the results achieved by the TPM. In the company in question, the TPM has been implemented in the past but lost strength over the years and some of its concepts were abandoned, producing then a drop in the equipments efficiency, increased wastes and breaks in the processes, as well as loss in product quality. Then, the need arose to restart the implementation process from the beginning, to strictly follow all the steps of the methodology, ensuring increased efficiency of equipment and processes. Through training and a changing in the company culture, it was possible a joint effort between Operation and Maintenance in order to enhance the knowledge of the operators on their machines. Initially, it was developed a general cleanliness program of equipments so that it could be possible to find the anomalies in the process. Subsequently, operators and maintainers were trained to detect anomalies, enabling equipments to work under their basic conditions of operation and subsequently building provisional standards of equipment cleaning, lubrication and inspection. Through the improvement presented by some indicators such as OEE, wastes, bankruptcies and unavailability, it was proved the importance and the positive effects of TPM implementation in manufacturing

Avaliação mecânica da colagem estrutural entre compósitos poliméricos e materiais metálicos utilizados em dutos petroquímicos

The development of technology for structural composites has as one of its ends form a set of materials that combine high values of mechanical strength and stiffness and low density. Today, companies like Embraer and PETROBRAS and research institutions like NASA, working with these materials with recognized advantages in terms of weight gain, increased performance and low corrosion. We have developed a systematic study to determine the bond strength between composite carbon fiber / epoxy and fiberglass / epoxy laminate both bonded to a carbon steel which are widely used in the petrochemical industry and repair. For morphological evaluation and bonding between materials of different natures, ultrasound analysis, optical microscopy and stereoscopy were performed. To simulate actual conditions, the composites were subjected to conditioning by using heat shock temperatures from -50 to 80 ° C for 1000 cycles for composite carbon fiber / epoxy composites and 2000 cycles for fiberglass / epoxy . The use of composites studied here proved to be efficient to perform repairs in metallic pipes with application petrochemical, as when exposed to sudden changes of temperature (-50 ° to 80 ° C) cycling at 1000 to 2000 times, its mechanical properties (shear and tensile) practically do not change

Utilização de técnicas de geoprocessamento para monitoramento de atividades de mineração ao longo de dutos: poliduto Rio de Janeiro/Minas Gerais

The transportation of oil through polyducts implies a concern related to safety and environmental impacts they may cause, especially when exposed to risks that affect their integrity. Among the various anthropogenic activities included in this scenario, mining can aggravate, increase the risks and degrade the environment. Since these polyducts go through significant extensions, remote sensing has great applicability as a tool for data acquisition. For this, change detection techniques were used to monitor mining activities in a defined study area in the state of Rio de Janeiro, along the duct ORBEL. The characterization of the study area and the mining activities were developed through bibliographical data. The satellite images processing and the application of change detection technique were performed in two scenes for the years 2002 and 2010. The growth in the mining area was about 6.67 times and it was possible to identify types of extraction involved which can represent direct risks to the pipeline

Utilização do método de tomada de decisão multicritério PROMETHEE II para priorização do plano de ação de redução de custos de manutenção

In the last years, the maintenance took an essential role inside the productive system. Plan and manage the maintenance actions in an efficient way, are vital activities for higher production availability. This paper presents an application of a Multicriteria Decision Analysis method in a chemical industry, willing to priories a plan action for the reduction of the maintenance cost. The method used was the PROMETHEE II, with it the results were obtained through the softwares Microsoft Excel and Decision Lab

Estudo sobre fornos de tratamento térmico e propostas de cogeração de energia em usina siderurgica não integrada

Steel industry is a sector heavily dependent on energy, both electrical and thermal. Since the receipt of raw materials to the shipment of finished products to customers, through mergers, casting, rolling, heat treatment, inspection, among others, high amounts of energy are demanded, generating very significant costs to the productive chain in its entirety . Therefore, any alternative that favors the reduction in energy consumption or barateie the cost of this is very welcome. Within this context, this paper aims to make a technical and economic analysis of installing a cogeneration plant in the field rolling in a non-integrated steel mill. Two configurations are proposed plants, with one being the use of heat from waste gases from furnaces existing in the area mentioned and another with the use of heat from waste gases from an internal combustion engine. Both proposals are evaluated technically and later is done the economic analysis, calculating the financial return (pay back) in relation to the investment required, operation and maintenance of the plant

Estabelecimento de rotinas de operação e orientações de manutenção para a planta termelétrica do DEN/FEG/UNESP

Steam generation plants have several industrial applications, being important for the national and global energetic matrix. Operational knowledge of steam plants is extremely important to forming a Mechanical Engineer. The facilities from Faculty of Engineering of Guaratingueta have a no operated steam pilot plant, named Thermal Machine Lab. Nowadays, the Energy Department from the faculty cannot explore this lab for its classes, even being essential to consolidate the theoretical concepts with tests simulating industrial applications. The goal of this project was to restore the operational condition of equipment of steam laboratory by fixing the equipment, and creating operational scripts for them. In a close future this lab could be used for classes, research and other applications

Manual de procedimentos técnicos para manutenção preventiva em empilhadeiras na área de prestação de serviços

The service area is in full development in the world, and it is proven the benefits of outsourcing services to large companies, which deliver services and manufacturing experts can focus only on production of their products. In the case of cargo handling is no different, many factories hire specialized companies to reduce fixed costs and factory overhead. And with the intense competition in the market, service providers are increasingly seeking to reduce costs in order to offer services at competitive prices. So if we see a growing need to train its employees to perform services faster and with better quality. In this work, will be a handbook of technical procedures for preventive maintenance, as well as a catalog of parts required to perform the same for Toyota 8 Series forklifts. Will be developed also tools to control and carry out the preventive maintenance of these trucks, such as Check-list and a manual of tools needed for each procedure. The results show that service quality has improved considerably and the cost of wrong parts decreases more than 15%

Implementação de produção enxuta em uma empresa de manutenção de equipamentos rotativos

This graduation work presents the implementation of the key concepts of lean thinking in a maintenance workshop of rotating equipment, analyzing all the administrative and workshop processes. The pursuit of quality and client satisfaction at lower costs has generated a lot of competition between organizations, which use the practices of lean manufacturing as tools for processes improvement, aiming to eliminate wastes, being this, the work objective. And, unlike a manufacturing system, where the product goes through certain stages until its conclusion, the workshop does not have a default sequence that is repeated routinely on all machines. Thus, it demonstrates a possibility of application of lean tools in a different way of the common used in the lean manufacturing