Water Pumping System
Mostrando 13-24 de 37 artigos, teses e dissertações.
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13. Evaluation of a water pumping system fed by photovoltaic panels / AvaliaÃÃo de um sistema de bombeamento de Ãgua alimentado por painÃis fotovoltaicos
The current dissertation describes an experiment to evaluate a water pumping system activated by two photovoltaic panels installed at The Federal Technological University of Paranà â FTUPR, Medianeira Campus, in the State of ParanÃ, Brazil. The city of Medianeiraâs latitude and longitude are 25Â17â43âsouth and 54Â03â38âwest respectively, with an al
Publicado em: 2007
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14. Geoprocessamento como ferramenta de apoio à gestão dos recursos hídricos subterrâneos do Distrito Federal
In the Federal District of Brasilia (Capital of Brazil), the groundwater demand has growin significantly in the last decades. Migratory process promoted by local government policies, population increasing and inadequate territory occupation are the main factors that compromises qualitatively and quantitatively subsurface water resources. In this sense, it is
Publicado em: 2007
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15. Modelagem do escoamento monofásico em bomba centrífuga submersa operando com fluidos viscosos / On the influence of viscosity upon electrical submersible pumping performance
In the oil industry, when artificial lift using Electrical Submersible Pumps (ESP) is considered, there is a need to determine their performance for displacing oils of medium to high viscosity. This work proposes a model that is able to predict the performance of conventional centrifugal pumps and ESPs when pumping heavier oils (meaning oils of high viscosit
Publicado em: 2007
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16. Analysis of the optimal location of pressure reducing valves in water distribution systems considering multiple objectives / Estudo ótimo da localização de válvulas redutoras de pressão em sistemas de distribuição de água considerando objetivos múltiplos
In Brazil, water distribution systems with high leakage levels represent a problem with multiple implications for water utilities. Leakage, which accounts for the dominant component of water losses, produces negative effects from the economical, as well as from the operational perspectives: increase in pumping energy, compromise of water quality, increase in
Publicado em: 2007
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17. Support system for utility and energy management: utilization of information systems and decision support systems concepts. / Sistema de apoio à gestão de utilidades e energia: aplicação de conceitos de sistemas de informação e de apoio à tomada de decisão.
This work deals with specification, development and utilization of the Support System for Utility and Energy Management - SAGUE, a system created to assist in analysis of data collected from utilities systems as compressed air, vapor, water pumping systems, environmental conditioning systems and others, integrated with energy consumption and climatic measure
Publicado em: 2007
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18. ANÁLISE DE MÚLTIPLAS VARIÁVEIS NO FECHAMENTO DE MINA ESTUDO DE CASO DA PILHA DE ESTÉRIL BF-4, MINA OSAMU UTSUMI, INB CALDAS, MINAS GERAIS.
The Osamu Utsumi belongs to Indústrias Nucleares do Brasil (INB), located in Caldas/MG, operated from 1982 to 1995, when the complete suspension of mining activities a processing of the uranium ore took place. Since then, the mine has an active maintaining system, which focus is the treatment of the acid drainage from the pit, waste dumps (locally called bo
Publicado em: 2007
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19. Desempenho de sistema de irrigação por gotejamento utilizado na aplicação de água residuária de suinocultura / Performance of dripping irrigation system using swine wastewater
The objective of this work was to analyze the performance of a drip irrigation system using swine wastewater. The following parameters were evaluated: (a) removal of suspended solids, oils and greases by passing the effluent through sloped static screens; (b) influence of service pressure on clogging of drippers operating with effluent and water; and (c) eff
Publicado em: 2007
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20. Um analisador fluxo-batelada com bomba-pistÃo aplicado à preparaÃÃo de soluÃÃes de calibraÃÃo e microemulsÃes: determinaÃÃo de metais em Ãgua mineral e gasolina por GF AAS
The development of flow analyzers and continuous monitoring of some chemical processes have lead to the design of flow manifolds more cheap and simplified, with potential for miniaturization. For these purposes, the use of flow systems seems to be an attractive option. Among these systems, the Flow-batch analyzers (FBA) were applied with success in the imple
Publicado em: 2007
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21. Proposição de uma metodologia para avaliação de inversores de freqüência em estações elevatórias de água: estudo de casos no sistema de abastecimento de água de São José dos Campos. / Proposal of methodology to evaluation of variable frequency drives in water pumping stations: case study in water supply system in the city of São José dos Campos.
The main purpose of this work is to evaluate the application of Variable Frequency Drives ? VFD, carried out in water pumping stations managed by SABESP ? Companhia de Saneamento Básico do Estado de São Paulo, located in the city of Sâo José dos Campos that are monitored by the Operational Control Center ? O.C.C. Technical characteristics of four pumping
Publicado em: 2006
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22. Estimativa da infiltração e do afluxo devidos à precipitação na rede de esgoto sanitário em município de pequeno porte.
The main purpose of this work was to identify and to estimate the rainfall derived infiltration and inflow (IADP) into the sewer in a small city and to do an analysis of their influence on this collection system. This work was composed by field measurements on the sewage flowrate output and volume arriving to the Sewage Pumping Plant Station, simultaneously
Publicado em: 2006
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23. Operação otimizada do sistema adutor metropolitano utilizando algoritmos genéticos: estudo de caso - SAM Leste da Região Metropolitana de São Paulo (R.M.S.P.). / Optimized operation of metropolitan mains system using genetic algorithms: case study - East Metropolitan Mains System of Metropolitan Region of São Paulo (M.R.S.P.).
This work presentss an evaluation of optimization of real time operation of a complex water supply system. Genetic Algorithm associated with a SCADA system and a network hydraulic simulation model was applied. Observed historic consumptions were used as a perfect water demand forecast model. Case study is the optimization of a multiobjective function (energy
Publicado em: 2005
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24. Resfriamento a vacuo de alfaces hidroponicas (Lactuca sativa L.) cv. Salad bowl : avaliação do processo e da vida pos-colheita. / Vacuum cooling of the alfaces hydroponics lettuces (Lactuca sativa L.) cv. Salad bowl: process evaluation and of the life postharvest time.
The principle of vacuum cooling process is based on the evaporation of water. The water evaporation occurs under low pressure and the boiling point temperature of water is lowered. Refrigeration systems are used for the condensation of the water vapor. For the condensation of water vapor, the adsorption appears as a good technological alternative. The vacuum
Publicado em: 2005