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Authors
Abstract(s)
Atualmente, a captação de energia através do corpo humano está-se a tornar um meio
popular em termos de alimentação de dispositivos portáteis wearable. Os wearables estão a ser
cada vez mais utilizados em diferentes aplicações relacionadas com a saúde graças à
disponibilidade que existe presencialmente ao acesso a tecnologias miniaturizadas. Ao integrar
o processamento de dados nos wearable, é possível captar uma panóplia de variáveis associadas
à saúde e segurança dos seres humanos. Infelizmente, a capacidade e o tamanho da bateria
determinam o tempo de operação dos wearables, limitando assim a sua aplicabilidade para a
monitorização a longo prazo. Entre todas as tecnologias usadas para captar energia de fontes
ambientais, recuperar a energia associada ao calor produzido pelo corpo humano através de
geradores termoelétricos é uma opção interessante em termos de energia, que é o foco deste
projeto dissertativo.
Será feita uma análise e otimização de sistemas com geradores termoelétricos para
aproveitamento da energia do corpo humano, através de simulação de um circuito com
geradores termoelétricos em série ligado a um circuito boost com um MPPT integrado. O
sistema será caracterizado do ponto de vista de disponibilização de energia, em função do
número de geradores termoelétricos, gradientes de temperatura e valores de resistência de
carga.
Nowadays, energy harvesting through the human body is becoming a popular in terms of powering portable wearable devices. Wearable devices are being used increasingly in different applications related to health, thanks to the availability that exists in the access of miniaturized technologies. By integrating or processing data on wearable devices, it is possible to grasp a panoply of variables related to human health and safety. Unfortunately, the capacity and size of the battery determine their operating time, thus limiting their application for long-term monitoring. Among the technologies used to harvest energy from environmental sources, recovering an energy associated with the heat produced by the human body through thermoelectric generators in an interesting option in terms of energy, and is the focus of this dissertation. An analysis and optimization of systems with thermoelectric generators to use energy from the human body will be made through the simulation of a circuit with thermoelectric generators in series connected to a boost circuit with an integrated MPPT. The system will be characterized in the terms of energy availability, depending on the number of thermoelectric generators, temperature gradients and load resistance values.
Nowadays, energy harvesting through the human body is becoming a popular in terms of powering portable wearable devices. Wearable devices are being used increasingly in different applications related to health, thanks to the availability that exists in the access of miniaturized technologies. By integrating or processing data on wearable devices, it is possible to grasp a panoply of variables related to human health and safety. Unfortunately, the capacity and size of the battery determine their operating time, thus limiting their application for long-term monitoring. Among the technologies used to harvest energy from environmental sources, recovering an energy associated with the heat produced by the human body through thermoelectric generators in an interesting option in terms of energy, and is the focus of this dissertation. An analysis and optimization of systems with thermoelectric generators to use energy from the human body will be made through the simulation of a circuit with thermoelectric generators in series connected to a boost circuit with an integrated MPPT. The system will be characterized in the terms of energy availability, depending on the number of thermoelectric generators, temperature gradients and load resistance values.
Description
Keywords
Circuito de Elevação de Tensão Conversão de Energia Dispositivos Wearable Energy Harvesting Gerador Termoelétrico Temperatura Corporal