Bases metodológicas para la programación y administración eficiente de la inversión pública

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La política de uso eficiente de la energía: ¿es el mercado el motor de dicha política?

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Uso eficiente de la energía en la minería chilena del cobre

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Chile: congestión portuaria y racionamiento eficiente en la transferencia de carga

El sistema de precios difícilmente puede eliminar la congestión en la transferencia de carga portuaria en períodos de máxima afluencia (peak), pues el uso del puerto no depende tanto de factores estacionales como sobre todo de la llegada simultánea de barcos, situación que conduce al racionamiento de su uso. En este artículo se muestra que el racionamiento eficiente debe hacerse de acuerdo con el valor de la carga transferida más que según el orden de arribo de las naves (first-come-first-served ). Se evidencia que en un racionamiento eficiente se da prioridad a la carga en contenedores, luego a la fraccionada y por último a la carga en graneles. Se aplican estos resultados a la transferencia de carga en el puerto concesionado de San Antonio Terminal Internacional de Chile.

Desenvolvimento de um conversor estático controlado por PWM para luminária de iluminação púbica com LEDs

Pós-graduação em Engenharia Mecânica - FEG

Políticas de logística y movilidad: propuestas para una política de movilidad urbana eficiente, integrada y sostenible. Volumen 2

Este documento complementa el texto que presenta una visión panorámica de la movilidad urbana en los países latinoamericanos (Rozas, Jaimurzina y Pérez, 2015), y propone un conjunto de elementos que, en opinión de los autores, permiten construir una política eficiente de movilidad urbana capaz de hacer frente a los diversos problemas que afectan en este plano a las principales ciudades de la región.

Conservação de energia em sistemas de iluminação pública e os seus efeitos na rede elétrica de distribuição

Pós-graduação em Engenharia Mecânica - FEG

Reatores eletrônicos para sistemas de iluminação com múltiplas lâmpadas tubulares fluorescentes com controle de luminosidade, elevada eficiência e elevado fator de potência

Pós-graduação em Engenharia Elétrica - FEIS

Iluminação para codornas japonesas na fase de produção

Pós-graduação em Zootecnia - FMVZ

Mapas topográficos: metadados e as regras de catalogação para o acesso eficiente à informação geográfica

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Sistema de iluminação inteligente através de redes de sensores wireless

The objective of this project is to collaborate with the society, working on a subject that is directly linked to issues of sustainability and environmental preservation. For this, a survey is being developed in order to make possible the creation of an intelligent mechanism, with the use of wireless solutions for the control of energy consumption in order to meet the needs of quality of life and reduce the average consumption of electrical energy. An intelligent lighting system can be explained simply, as an interconnected network of lamps in order to meet needs such as light intensity, the location of it, the moment will turn on or turn off the lights, among other possibilities. This network of lamps is controlled by algorithms implemented using microcontrollers, which may or may not have changed its characteristics. This can be automatic (pre-programmed by the administrator) or manual (controlled via a remote control, phones, etc.), and will depend upon the manager himself and also the characteristics imposed on the project. However, it is important to note that after the search is complete, decisions will be consistent with the Brazilian reality, ie, this system can only be feasible if it has all the characteristics described above, but with an affordable price so that people can acquire it

Análise de desempenho de lâmpadas LEDs e LFCs como alternativas em iluminação residencial em função da implementação da portaria ministerial n° 1007 que limita o uso de lâmpadas incandescentes no Brasil

With the imposition of the suspension of production and subsequent banning of incandescent light bulbs will be necessary to replace it by other more energy-efficient. Although the main alternative is the compact fluorescent lamp, the environmental impact caused by it due to incorrect disposal and the amount of harmonics included in the network resulting in losses related to the quality of electric power system makes them sought new alternatives for lighting systems that are efficient and have low environmental impact. In this context, the LED (Lighting Emitting Diode), based on solid-state components, is presented as an option for new projects and replacement of existing lighting. In this work we studied aspects of energy, environmental and economic impacts of a possible replacement of conventional lighting systems for new technology. From laboratory tests and surveys of the costs of different types of lamps used for residential lighting, we performed a comparative analysis considering energy and economic aspects which showed that the LED technology, but has a high initial investment, it is best when power quality and environmental preservation are relevant factors in decision making for the choice of technology to be used in the lighting system

Iluminação de exteriores utilizando tecnologia LED: estudo de caso

This Graduate Work aims to exhibit the analyze of the applicability of LED technology in a real outdoor lighting situation, and this project’s illumination solution is compared with the initial proposal, the sodium vapor lamps. What is studied is an outdoor area, like the roads and parking lots of a plant. A light planning software is used for this comparison, and the results are displayed instantly, allowing rapid analysis of the project through a simulation. The medium illuminance is the same in both solutions for this case study and minimum rates set as standard were observed then the analysis are appropriate in this project. Various aspects are considered in order to obtain a comprehensive analysis of this project, such as economic, environmental and quality of lighting. LED technology in outdoor lighting is presented in its infancy, but promising. Solid state lamps show great advantages when compared with other technologies, such as discharge lamps, however there are some disadvantages tied to new products that are expected to be overcome with technological development and increased production

Plano de iluminação externa da UNESP Campus Itapeva com base em LED e energia solar

This work presents the development of the External Lighting Plan UNESP in the Itapeva Campus based LED and Solar Energy. Firstly it was made a collection of data from measurements of the local transit through the Google Earth 6 software and divide the local in sectors, and then perform an analysis of characteristics and age of the site. With these data it was possible to determine the average luminance the place, in30 lux. After these procedures was possible to determine the type of sets that would perform the role of bridge lighting the kit chosen was the 20/20 Sun LED manufacturer, since it contains the luminaire with the solar panel to the pole. Therefore we determined the number of poles for each sector, whichwas72in total and. After the determination of the location of each point lighting