Water Pumping System
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. DIRECT CONNECTION PHOTOVOLTAIC SYSTEM IN MULTI-MOTOR APPLICATION FOR THE RURAL SECTOR
ABSTRACT Photovoltaic pumping systems equipped with variable speed drive have been consolidated as an alternative for water supply in rural locations where energy services are unavailable. Such systems are of the direct connection type and, therefore, it is likely that their operation occurs in two situations: when energy is available and when the reservoir
Eng. Agríc.. Publicado em: 2020-06
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2. Analysis of the long-term effects of groundwater extraction on the water balance in part of the Urucuia Aquifer System in Bahia - Brazil
Resumo Em regiões agrícolas onde há insuficiência de chuva para o cultivo, entender a dinâmica das águas, superficiais e subterrâneas, é fundamental para avaliar o impacto do crescente bombeio de poços sobre o balanço hídrico. O Oeste do estado da Bahia-Brasil, maior área de agronegócio do estado, experimenta uma progressiva ocupação a partir
Rev. Ambient. Água. Publicado em: 28/11/2019
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3. ENERGY EFFICIENCY OF A CENTER PIVOT IRRIGATION SYSTEM
ABSTRACT This study aimed to evaluate the energy efficiency of a center pivot irrigation system operating in a terrain of variable topography. Values of Pumping Energy Efficiency (PEE), Supply Energy Efficiency (SEE), Global Energy Efficiency (GEE) and Specific Energy (Es in kWh m-3) computed at 18 different angular positions of the lateral line were used as
Eng. Agríc.. Publicado em: 2018-04
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4. LOW COST ANALYZER FOR THE DETERMINATION OF PHOSPHORUS BASED ON OPEN-SOURCE HARDWARE AND PULSED FLOWS
The need for automated analyzers for industrial and environmental samples has triggered the research for new and cost-effective strategies of automation and control of analytical systems. The widespread availability of open-source hardware together with novel analytical methods based on pulsed flows have opened the possibility of implementing standalone auto
Quím. Nova. Publicado em: 2016-04
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5. Eficiência energética em estações elevatórias de esgotos : estudo de caso em Uberlândia-MG / Energy efficiency in pumping stations sewage : a case study in Uberlândia-MG
Proper operation of a system of collection and removal of sewage is directly related to the optimization of its operation. Given the use of equipment such as AC drives and control panels the distance to sewage pumping stations and large financial viability of installing such devices to sewage pumping stations in small and medium optimization arises to seek a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/08/2011
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6. Algoritmos evolucionÃrios multipopulaÃÃo na otimizaÃÃo multiobjetiva da remediaÃÃo de Ãguas subterrÃneas / Multi-population Evolutionary Algorithm Multi-Objective Optimization of Groundwater Remediation
Through the last three decades the evolutionary algorithms have been successful on application to many areas. Easily applied, efficiency and confidence are the main advantages of the evolutionary algorithms. In the groundwater remediation, generally, the objectives are the cost minimization, minimization of contaminant presence, maximization of pumping effic
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/07/2009
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7. Tempo de residÃncia da Ãgua em um sistema experimental de aquicultura integrada com camarÃes, ostras e macroalgas. / Residence time of water in an experimental integrated aquaculture with shrimp, oysters and seaweeds.
Shrimp culture presented at a world-wide level a significant growth in recent years, mainly in tropical and subtropical regions, however, this expansion comes with diverse environment negative impacts, mainly related to the cultures effluents, which are rich in nitrogen and phosphorous, that are many times discarded in the environment without any previous tr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2009
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8. Estimativa do indice de nacionalização dos sistemas fotovoltaicos no Brasil / Estimates of nationalization index of PV systems in Brazil
The Law nº 10.438/02 established the Program of Incentives for Alternative Electric Power Sources - PROINFA, which is the only national program aimed to foster alternative renewable energy sources and to increase the share of electric energy production from enterprises based on wind power, small hydropower plants and biomass in the interconnected national p
Publicado em: 2009
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9. Real-time optimization of water supply system operation / Otimização energética em tempo real da operação de sistemas de abastecimento de água
This work presents a computational model for real-time optimization of water-distribution networks operation. An integrated software tool has been developed which is composed of three main modules: (i) a hydraulic simulator that performs the extended period simulation of the system (EPANET); (ii) a short-term demand-forecasting model, based on the moving Fou
Publicado em: 2009
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10. UTILIZAÇÃO DE SISTEMAS, SOLAR E EÓLICO, NO BOMBEAMENTO DE ÁGUA PARA USO NA IRRIGAÇÃO / SOLAR AND WIND SYSTEMS UTILIZATION IN WATER PUMPING FOR USE IN IRRIGATION
No presente trabalho, foi realizado uma pesquisa aplicada em duas estações, a primeira localizada na localidade de Canabarro e a segunda no Colégio Politécnico da Universidade Federal de Santa Maria na cidade de Santa Maria , RS, com equipamentos eólicos e fotovoltaicos para bombeamento de água . Esses foram utilizado para irrigação em frutíferas, e
Publicado em: 2009
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11. VazÃo de uma motobomba acionada por painÃis fotovoltaicos / Outflow of a motor pump run by photovoltaic panels
This project evaluated the performance of a motor pump connected to two photovoltaic panels in order to determinate the outflow equations in relation to the solar irradiance on the photovoltaic panels. All data were collected between September 15th, 2007 and February 1st, 2008. For each lift height, it was verified: year, julian day, hour, panels temperature
Publicado em: 2008
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12. Detecção condutométrica sem contato: uma nova ferramenta para monitoramento de interações biomoleculares em microssistemas analíticos / Contactless conductivity detection: a new tool for monitoring biomolecular interactions on analytical microsystems
The study reported in this thesis shows the application of a capacitively coupled contactless conductivity detection (C4D) for monitoring biomolecular interactions on analytical microsystems. Initially, the analytical performance of the microsystems fabricated in glass, poly(dimethylsiloxane) (PDMS) and polyester-toner (PT) was investigated in order to choos
Publicado em: 2008