Iluminação emocional, percepção visual e bem-estar

Dissertação de Mestrado para obtenção do grau de Mestre em Design de Produto, apresentada na Universidade de Lisboa - Faculdade de Arquitectura.

Adaptive lighting design as a holistic approach to public lighting

Dissertação para obtenção do grau de Doutor em Design, apresentada na Universidade de Lisboa - Faculdade de Arquitetura.

Design e desenvolvimento de equipamentos de iluminação técnica

Este documento é uma sinopse das atividades desenvolvidas e, conhecimentos adquiridos ao longo do estágio na empresa Lightenjin, Sistemas de Iluminação, Lda. e, surge em forma de relatório de projeto. O primeiro projeto foi o desenvolvimento de uma família de candeeiros. O segundo e principal projeto foi a criação e desenvolvimento de um projetor para aplicação em calha eletrificada, com as devidas restrições do Project brief apresentado pela empresa. O terceiro projeto foi o desenvolvimento de um projetor Downlight de encastrar. Houve outras tarefas ligadas à modelação de componentes, desenhos técnicos, manuais de instruções, fichas técnicas e prototipagem rápida. Em todos os projetos foi utilizada a metodologia de trabalho apresentada.

Pré-regulador retificador boost com controle digital por valores médios, para sistema de iluminação fluorescente multi-lâmpadas, utilizando dispositivo FPGA e VHDL

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Comparação entre a percepção e a normatização sobre a iluminação em ambientes ocupacionais: estudo de caso em uma empresa florestal

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação do uso de imagens HDR no estudo de iluminação

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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

Estudo sobre iluminação e banco de capacitores de uma típica indústria metalúrgica

The use of electricity for obtaining light has been quite an issue currently discussed, either through new technologies that are emerging, the quest for greater efficiency, reduced waste and rational use. This work comprises a lighting design applied to a metallurgical based Brazilian Standard 5413 which mentions levels of luminance for interior and, in the case of this work, for a sandblasting booth. Ways to improve the workplace and luminosity presented before the project and also after its implementation are discussed. Technologies are chosen guided by technical calculations according to the illuminance values they want to reach for the environment studied. All pertinent design features are critically analyzed and discussed, and at the end proposals are presented, relating to each other in a comparative framework, so the best solution is applied in a practical way in the enclosure. Results are also presented concerning the maintenance of a bank of capacitors to correct the power factor for the metals studied company

Desenvolvimento de um conversor estático PWM para o acionamento de LED’S para iluminação publica

This work deals with the development of a switched-mode power supply circuit based on a Buck topology converter with a Boost Rectifier One-Cycle Control with Power Factor Correction developing, thus, a source of direct current for a module of 50 power LEDs that will be used in a lamp for public street lightning. It is presented, at first, some aspects about the most common technologies used in lamps of public street lightning in Brazil and a comparison with the White LED high power, which is the one that presents itself as the most promising among the existing market. Then it is presented the detailed development of the static converter switched PWM, consisting of a Boost rectifier with power factor correction and methodology of control One-Cycle Control associated with a Buck converter controlled by a PI method that operates as a direct current source . At the end of the simulation results of the circuit through the PSIM software are presented to verify the design behavior

Ergonomia de tablets em uso ocupacional: atividade visual e biomecânica postural sob a influência de ofuscamentos reflexivos causados pela iluminação

Pós-graduação em Design - FAAC

Inclusão digital no ensino de iluminação natural

The teaching/learning activities of the daylighting built environment require from the Architecture and Urbanism undergraduate student the ability to abstract the effects of daylight distributed in three-dimensional space that is being designed. Several tools and techniques can be used to facilitate the understanding of the involved phenomena, among which the computational simulation. This paper reports the digital inclusion of the daylighting teaching in the Architecture and Urbanism undergraduate course at the School of Architecture, Arts and Social Communication of Bauru (FAAC) of UNESP – Sao Paulo State University, that began in 2010. The inclusion process involved free software use, specifically the programs DIALux and SketchUp+Radiance, both with graphical output for the illuminated scenes visualization and for result analysis. The graphic model is converted from SketchUp to Radiance by a plugin and a user-friendly interface for Windows was developed to simulate the lighting. The process of digital inclusion is consolidated, with wide acceptance by students, for which computational simulation facilitates understanding of relation between daylight and built environment and helps the design process of elements for daylighting control.

Sistema autônomo de iluminação utilizando energia solar

This work presents a self-sustainable lighting system using ultracapacitor as a storage device, replacing the conventional battery, using solar energy as the only energy supplier. A detailed study of solar panels, switched mode converters and ultracapacitors was made, in order to design a circuit capable of capturing solar energy and transfer it efficiently to a bank of ultracapacitors. Later, at nighttime, this energy is used for lighting in LED luminaires which have high luminous efficiency and high reliability index. This work presents the design of the solar panel, ultracapacitors bank, the development of the voltage converter circuit and charger working at the maximum power point of the solar panel. All subsystems were simulated and it was shown that the use of ultracapacitors is feasible to feed a LED lamp with enough brightness for a person to walk at night, for two night shifts, using a capacitive bank with twenty-four ultracapacitors. Replacing the battery by an ultracapacitor allows a faster recharge, with low maintenance costs, since ultracapacitors have a lifetime bigger than batteries; beyond reducing the environmental impact, as they don't use potentially toxic chemical compounds

Sistema autônomo de iluminação utilizando energia solar

This work presents a self-sustainable lighting system using ultracapacitor as a storage device, replacing the conventional battery, using solar energy as the only energy supplier. A detailed study of solar panels, switched mode converters and ultracapacitors was made, in order to design a circuit capable of capturing solar energy and transfer it efficiently to a bank of ultracapacitors. Later, at nighttime, this energy is used for lighting in LED luminaires which have high luminous efficiency and high reliability index. This work presents the design of the solar panel, ultracapacitors bank, the development of the voltage converter circuit and charger working at the maximum power point of the solar panel. All subsystems were simulated and it was shown that the use of ultracapacitors is feasible to feed a LED lamp with enough brightness for a person to walk at night, for two night shifts, using a capacitive bank with twenty-four ultracapacitors. Replacing the battery by an ultracapacitor allows a faster recharge, with low maintenance costs, since ultracapacitors have a lifetime bigger than batteries; beyond reducing the environmental impact, as they don't use potentially toxic chemical compounds