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Advisor(s)
Abstract(s)
A população mundial está aumentando exponencialmente à medida que o tempo passa, assim
como, a constante procura de energia. A este ritmo, estima-se que as fontes de energia não
renováveis se extingam num futuro próximo. É então necessário recorrer a fontes alternativas
de energia como o “energy harvesting” para que se consiga satisfazer os sistemas mais básicos.
O “energy harvesting” está associado à captação de pequenas quantidades de energia através
de vários sistemas, seja através do sol, de sistemas à base de vibrações ou através de processos
fisiológicos humanos como a movimentação ou a temperatura corporal. Neste trabalho o
conceito “energy harvesting” está associado à captação da energia baseada na disponibilização
de energia térmica no corpo humano, uma vez que, existe um gradiente em relação à
temperatura do meio ambiente. Através de dispositivos termoelétricos essa energia poderá ser
captada e armazenada, utilizando para o efeito, sistemas eletrónicos de condicionamento. Será
proposto um sistema de captação de energia térmica do corpo humano, definindo-se a matriz
de módulos termoelétricos e sua interligação, bem como o circuito de condicionamento e de
armazenagem de energia. Será caracterizado o sistema do ponto de vista de disponibilização
de energia, em função da área de colocação de módulos e dos gradientes de temperatura
presentes.
The world's population is increasing exponentially as time passes as the constant demand for energy. At this rate it is estimated that non-renewable sources of energy will be extinguished in a near future. Alternative energy sources such as energy harvesting are therefore required to be able to feed the most basic systems. Energy harvesting is associated with the uptake of small amounts of energy through various systems whether through the sun, vibrations, or through human physiological processes such as movement or body temperature. In this work, the concept of "energy harvesting" is associated to energy capture based on the availability of thermal energy in the human body since there is a gradient in relation to the temperature of the environment. Through thermoelectric devices this energy can be captured and stored using electronic conditioning systems. It will be proposed a system for capturing thermal energy from the human body, defining the matrix of thermoelectric modules and their interconnection, as well as the circuit of conditioning and energy storage. The system will be characterized from the point of view of energy availability, depending on the area of module placement and the available temperature gradients.
The world's population is increasing exponentially as time passes as the constant demand for energy. At this rate it is estimated that non-renewable sources of energy will be extinguished in a near future. Alternative energy sources such as energy harvesting are therefore required to be able to feed the most basic systems. Energy harvesting is associated with the uptake of small amounts of energy through various systems whether through the sun, vibrations, or through human physiological processes such as movement or body temperature. In this work, the concept of "energy harvesting" is associated to energy capture based on the availability of thermal energy in the human body since there is a gradient in relation to the temperature of the environment. Through thermoelectric devices this energy can be captured and stored using electronic conditioning systems. It will be proposed a system for capturing thermal energy from the human body, defining the matrix of thermoelectric modules and their interconnection, as well as the circuit of conditioning and energy storage. The system will be characterized from the point of view of energy availability, depending on the area of module placement and the available temperature gradients.
Description
Keywords
Captação de Energia Dispositivos Médicos Efeito Termoelétrico Get Temperatura Corporal