Estudo e modelagem 3D de uma turbina Francis

Most of the hydraulic turbines that are running in the world are the Francis type, because they are able to fit a wide range of head and flow. We also can declare that most of the installed hydraulic energy up to this date is generated by this type of turbine. On the other hand, if we pay attention to mechanical details of a Francis turbine we will see that among the three most used types it is the one that presents the more complex design. And, the simplest one is the Pelton type, whereas the Kaplan is the one less utilized. This work aims to develop the hydrodynamic calculation of a Francis turbine as well as to obtain its assembly drawing and 3D modeling drawing. In this way all details must be shown therefore needing a complete knowledge about this issue. Both 2D and 3D drawings help much if one wants the machine to be running in its power house. It is well noted that most of the entities that design and manufacture the Francis turbines are not brazilian. In this way the more we study how to design this kind of machine the more is our contribution to our country in order to conquer technology and manufacture Francis turbines

Projeto de uma rede de ar comprimido industrial

In this study was shown the historical uses of compressed air by humanity, the general scenario of its uses and the most important steps of a project to set up an industrial network of compressed air, from the selection of a suitable compressor to the design of a distribution network, discussing all the possibilities and their characteristics as well as the feasibility of them. A case study was conducted in a food company where was implemented an industrial compressed air network. Information was collected regarding the consumers points of compressed air, as well as the layout of the new facility, necessary for the development of the distribution system. Two methods were used, analytical and nomogram, which complemented each other to the definition of appropriated tubing, both financially and physically

Estudo geoelétrico em ocorrência de manganês supergênico no município de Itapira (SP) por meio do método da eletrorresistividade

The geophysical methods are used as tools that, together with other data, assist in target detail and sizing of ore bodies. This paper presents the results of the application of DC resistivity geophysical method on a manganese mineral occurrence located in Itapira, in the northern portion of São Paulo state, hosted predominantly in schists and quartzits of Itapira Group. The integration of geophysical data resulted in the elaboration of electrical resistivity models, where it was possible observe that the mineralized body, composed predominantly of manganese oxides and hydroxides, has a pattern of high resistivity (above 5000 Ω.m) both surface and subsurface. The contrast with the host rock is characterized mainly by different minerals assemblages and by the presence of local groundwater. The results accomplished in this paper reveal that the application of DC resistivity method is valid in primary evaluations of supergene deposits

Avaliação de momentos fletores em estruturas de fundação tipo radier em concreto armado

It aims the comparison of these moments between an analytical plates theory and a computational numerical simulation. It is accented the details of studies about analytical theory as well the process, step by step, of a program that has as an influence the method of finite elements. The theory of plates has an extremely importance when it is talked about slabs and it takes as a base some fundamental hypotheses (that the middle point of the plate is considered flat and under formable) the points that are normal in relation to the middle surface is not considered because of its intensity that is irrelevant in comparison to the rest. The computational programs offer good results when they are applied in a correct way and, it resolves numerous functions in a short period of time. The objective is to highlight the importance of bending moments, its points of maximum and minimum, that has the objective of realize a good reinforcement sizing for a reinforced concrete. Furthermore, it can propitiate an economy in places that is demanded a small quantity of steel, before dimensioned for a load that is distributed in all the surface of the plate, at the same intensity

Projeto mecânico do sistema de transmissão de um veículo Baja

This study aims to determine the best configuration for the new gearbox of the new Baja´s vehicle from Piratas do Vale team, focusing on the gear train, in order to achieve high performance of it. To this end, first some information about the vehicle is gathered to determine the best pair of gears configuration, then calculations about maximum bending stress, fatigue and surface thereof are performed; ; thereafter static simulations are performed using an a appropriated software. Thus this paper shows a satisfactory design of the addressed, besides providing the Baja SAE team consultation material for future use in the project

Proposta de conector para ensaios de ligações CDE submetidas à tração perpendicular as fibras em madeira de pinus

The growth of urban population associated with the shortage of supply of public infrastructure such as hospitals, kindergartens, schools, among others, has reinforced the need to develop alternative methods that simplify the construction processes and allows for a reduction in these costs works. The conventional processes have increasingly been shown ineffective to solve the problem of demand for different types of urban and rural buildings. Given this fact, industrial construction processes can gain space and have proven to be highly interesting to solve the above problems, in particular, considering the cost-effective and time. Therefore, this study aimed to determine the influence of moisture on the strength of metal plate connections connectors (printed plate with teeth). For the sizing of the links between structural lumber using metal connectors with teeth prints; controlled process variables (drying of the wood and the different moisture contents), and finally found results and compare them with different literatures order to obtain a qualitative efficiency of the process. Some specimens had very low expectations, can be explained by the presence of bone marrow, and pre-existing cracks. Thus, the results were discarded for further analysis and more accurate results

Estudo de capacidade de armazenagem e frota em uma empresadoramo de bebidas

This paper presents a case study in a largebeverage company,which suffers fromlack of inputs. Through 5 Whys analysis,it was possible to find the root causes of the problem: the bad fleet sizing deliveriesand low capacityof storage of inputs. Through the use of simulation, it was possible to determine theactual fleet required, and it was alsoquantified thespace required for thestorage ofloads.Based on these results andconsidering the cost, it waspossible todetermine which the most effective solutions toreducing the initialproblem: the increase of storage capacity, considered the best option, even demanding time, or the increase of the fleet, considered a stopgap measure to partially solve the problem until the first solution is finalized

Projeto, desenvolvimento e construção de um redutor/multiplicador de velocidades de baixo custo

This paper aims to present the design, development and construction of a reducer / multiplier speeds low cost, sturdy and easy operation. The beginning of the project was given to research on issues related to mechanisms and machine elements, and these theories of fundamental importance in the development of items of equipment which, together with the aid of AutoCAD software, enabled the construction of it. Parallel to the sizing of equipment, were also investigated and taken into account the costs of materials used in the project. Made to mount the reducer / multiplier speeds it was at the evidence through experiments involving the use of torque wrench, tachometer and weights, getting proven applicability in situations that are small or medium loads required

Centro de educação, cultura e lazer

O presente Trabalho Final de Graduação apresenta um projeto que se baseou no programa oferecido pelo Centro Educacional Unificado – CEU, equipamento público criado em 2001 pela Secretaria Municipal de Educação da Prefeitura de São Paulo destinado a áreas periféricas da cidade de São Paulo. E também no programa oferecido pelo SESI – Serviço Social da Indústria, entidade de direito privado criado em 1946 pela CNI – Confederação Nacional da Indústria. Formulado para funcionar como um espaço de sociabilização da vida urbana e com o intuito de oferecer EDUCAÇÃO, CULTURA E LAZER para o desenvolvimento integral de crianças, jovens e adultos das comunidades do entorno. O programa desenvolvido para o CENTRO DE EDUCAÇÃO, CULTURA E LAZER, conta com um Bloco Cultural o qual apresenta espaços como: Biblioteca, Teatro, Refeitório, Administração, Salas de atividades diversas e a Creche; o Bloco Educacional Abriga um Centro de Educação Infantil (CEI), uma Escola Municipal de Educação Infantil (EMEI), uma Escola Municipal de Ensino Fundamental (EMEF) e Educação de Jovens e Adultos (EJA). E por fim, uma Praça de Esporte e Lazer equipada com Ginásio Poliesportivo coberto, quadras descobertas, piscinas e playground, sendo estes espaços abertos aos finais de semana com a finalidade de proporcionar opções de recreação em beneficio de toda comunidade. A escolha do local para a implantação deste projeto foi a cidade de Ribeirão Preto (localizada a nordeste do Estado de São Paulo), no bairro Jardim Jamil Seme Cury, conjunto habitacional criado para receber moradores vindos de uma comunidade carente que se localizava no entorno do aeroporto Leite Lopes, o qual passa por discussões para a inserção de um Terminal Internacional de Cargas, e consequentemente necessita ampliar sua área de abrangência

Projeto elétrico básico de uma subestação industrial típica na classe 15 kV

The electrical substations have the goal to transmit, distribute and change the characteristics of electrical energy transmission networks of dealers to the end user with a high rate of reliability and continuously. For this it’s necessary to accomplish a gathering of datas from the local dealers where will be installed the substation to make a good electric project. This work has the objective to gather all the contents relatives to electric project of substation that are scattered in the literature, in order to organize and develop a basic guide that presents a methodology to dimension electrical equipments that belong to an industrial substation at 15 kV. In addition to elaborate a basic guide, this work aids to specify electrical equipments installed in the substation, bringing information and comparisons to know and determinate the kind of equipments that will be used, in a correct and coherent way with the national and international rules. Ultimately, after determined, got and specified all the equipments that belongs to an industrial substation, the work mention in global manner how to calculate the dimension of substation physical arrangement, determining all the least and required dimensions of each cubicle

Viabilidade técnica e econômica na utilização de um sistema fotovoltaico para alimentação de luminárias LED na Faculdade de Engenharia do Campus de Guaratinguetá SP

Solar energy can be considered the largest source of energy available on earth and has attracted in recent decades, attention and interest for its rational use. The use of energy sources in a sustainable way is essential to the survival of future generations, due to the scarcity of natural resources and their exploitation in a disorderly way. This academic work aims to bring a possible alternative to reduce the consumption of eletrical energy, at the University of Engineering – Campus of Guaratinguetá, through the use of a photovoltaic system interconnected to the LED bulbs. For this, the necessary data for the design of the photovoltaic system componentes and their acquisition costs were obtained and three differents configurations were developed to choose the one that bests fits the studied case, considering the return time of the initial investment (payback)

Previsão do comportamento de estruturas de contenção atirantadas utilizando o software FTOOL

Population growth, together with the gradual social ascent in Brazil, reflects at the growing need for better use of urban spaces. In this context, the amount of new buildings to meet the demand in property market, the needs for creating new roads and highways, among others, make the use of geotechnical works and, more specifically, retaining walls, more and more common. One of the simplest solutions for underground works is the use of retaining structures using tie back walls for soil support, therefore, the present work deals with this kind of structures. This paper proposes the use of FTOOL software testing in predicting deformations in tie back walls, by comparing simulations of the presented model to a real and measured deformation case in Guabirotuba Formation (PR). The results showed the importance of defining the parameters such as stiffness and curtain geometry, as well as the definition of representative loads acting on it. Also, it was pointed out that the passive response of the steel rods depends on the horizontal displacement of the wall. The study concluded that the program generates very representative results when compared to field data and seems to be a promising tool for tie back structures displacement predictions

Subsídios para implantação de trincheiras de infiltração na área urbana de Rio Claro/SP

The purpose of this work is to study the theme “infiltration trenches” in some of its main aspects, such as sizing methods and parameters related to this, in order to subsidize the installation of these structures in the urban area of Rio Claro/SP. For purposes of sizing, the “rain-envelope method” was used for its simplicity and direct application from the local characterization data and the IDF (intensity-duration-frequency) curve data. The method bases on the determination of the tributary volume of input and output device. The curve of values accumulated over time of the volumes tributaries to the device, which is built on the flow rates obtained from the local IDF curve, is compared with the value curve of his effluent volumes determined from the flow characteristics obtained from the infiltration soil. The maximum difference between the curves is the volume sizing. Five locations were chosen in the urban area of Rio Claro for implementation of these devices, considering the soil type, hydraulic conductivity of each area and lot size according to the Master Plan of Rio Claro. This work also presented an estimated reduction of the runoff in urban lots by using infiltration trenches.

Estudo de caso do conforto térmico de dois modelos construtivos em madeira: wood frame e log home

O presente trabalho consiste em demonstrar valores referentes ao conforto ambiental de dois modelos construtivos, sendo o primeiro um edifício já executado e o outro em fase de implantação, ambos no Campus Experimental de Itapeva, aplicando alguns conceitos em habitação mais sustentáveis de madeira na região de Itapeva, estado de São Paulo, Brasil. A edificação construída sedia duas salas de aula a partir da tipologia construtiva wood frame, constituída basicamente de paredes autoportantes compostas de ossatura de madeira tratada de pinus.sp, chapas estruturais em OSB, manta de isolamento térmico/acústico e fechamento interno e externo, respectivamente em gesso e sidding (lambris de madeira). A habitação em fase de início de implantação foi idealizada a partir da tipologia construtiva log-home, e atenderá a necessidade de espaço físico para abrigar o Centro Acadêmico e a empresa-júnior “PROMAD”, ambos do curso de Engenharia Industrial Madeireira do Campus Experimental da UNESP/Itapeva. Esta construção foi elaborada a partir de técnicas de baixo impacto ambiental, levando em consideração os resultados de análise térmica obtidos na edificação anterior. Em ambos modelos construtivos foram empregados recursos renováveis abundantes na região, como a madeira de reflorestamento de Pinus e de Eucalipto. Foi acrescentado ainda ao segundo modelo a utilização de resíduos industriais lignocelulósicos, como rolete de laminação e outros materiais locais disponíveis. A metodologia básica empregada para a obtenção de dados sobre o conforto térmico em relação as edificações foi, para o primeiro caso, a coleta de dados de temperatura e umidade utilizando um termo-higrômetro, a sistematização e análise de dados reais obtidos no interior da edificação. No segundo caso, o dimensionamento do conforto térmico... (Resumo completo, clicar acesso eletrônico abaixo)

Caracterização hidráulica do aspersor Super 10 e sua influência na energia cinética e erosividade

Pós-graduação em Agronomia (Ciência do Solo) - FCAV