| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 2.54 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
necessidade de tornar sistemas de redes sem fios energeticamente autónomos, independentes de baterias, tem sido um desafio essencial tanto de cariz tecnológico como económico e ambiental. Nomeadamente, em sistemas de gestão e tratamento de água. Com a particularidade de hoje já ser reconhecido o impacto que os setores de água, energia e alimentação têm entre si devido a sua relação intrínseca: Nexus- food, water, energy.
Esta dissertação procura responder a desafios tecnológicos dentro do sector energético dos sensores sem fios. E, inserir esta solução no sector hídrico procurando formas de converter energia que à partida está a ser dissipada, em forma de calor, em energia elétrica.
De maneira a conseguir implementar esta solução é feito o estudo sobre transdutores termoelétricos, em particular a célula de Peltier. Este transdutor permite converter energia térmica em energia elétrica. Para que a célula consiga alimentar um microprocessador é desenvolvida uma placa PCB que consiga elevar e regular a tensão de saída ca célula.
Adicionalmente, é feita a concetualização um protótipo que simula situações reais que possibilitam estabelecer e recolher um gradiente de temperatura. Ou seja, levando a que seja possível gerar energia elétrica que alimente a componente eletrónica.
The need to overcome the dependency of wireless sensors from batteries has been a technological, economic and environmental challenge. Namely, in water management and treatment systems. Particularly, today it is known the impact that water, energy and food have on each other since their relationship it is complex and intrinsic. This concept it is known as Nexus: food, water and energy. This dissertation seeks to respond to the technological challenges within the energy sector of wireless sensors. And insert this solution into the water sector searching ways to convert energy that is being dissipated, in the form of heat, into electrical energy. In order to implement this solution, a study is made on thermoelectric transducers, in particular the Peltier cell. This transducer allows to convert thermal energy into electrical energy. In order for the cell feed the microprocessor a PCB board is developed and therefore it is possible to raise and regulate the output voltage to the cell. Additionally, a prototype is developed that simulates real situations that make it possible to establish and collect a temperature gradient. Leading to being possible to generate electrical energy that feeds an electronic component.
The need to overcome the dependency of wireless sensors from batteries has been a technological, economic and environmental challenge. Namely, in water management and treatment systems. Particularly, today it is known the impact that water, energy and food have on each other since their relationship it is complex and intrinsic. This concept it is known as Nexus: food, water and energy. This dissertation seeks to respond to the technological challenges within the energy sector of wireless sensors. And insert this solution into the water sector searching ways to convert energy that is being dissipated, in the form of heat, into electrical energy. In order to implement this solution, a study is made on thermoelectric transducers, in particular the Peltier cell. This transducer allows to convert thermal energy into electrical energy. In order for the cell feed the microprocessor a PCB board is developed and therefore it is possible to raise and regulate the output voltage to the cell. Additionally, a prototype is developed that simulates real situations that make it possible to establish and collect a temperature gradient. Leading to being possible to generate electrical energy that feeds an electronic component.
Description
Keywords
Célula de Peltier Efeito Seebeck Energy Gerador Termoelétrico Nexus- Food Sensores Water