Sökning: "thermoelectric energy harvesting"
Visar resultat 1 - 5 av 13 avhandlingar innehållade orden thermoelectric energy harvesting.
1. Energy Harvesting and Energy Storage for Wireless and Less-Wired Sensors in Harsh Environments
Sammanfattning : Engineering requires sensors to control and understand the environment. This is particularly important in harsh environments. The drawbacks, especially in gas turbines is the complexity of installing a wired sensor and the weight of the wires. This makes wireless sensors attractive. LÄS MER
2. Efficient Energy Harvesting Interface for Implantable Biosensors
Sammanfattning : Energy harvesting is identified as a promising alternative solution for powering implantable biosensors. It can completely replace the batteries, which are introducing many limitations, and it enables the development of self-powered implantable biosensors. LÄS MER
3. Energy Harvesting for Wireless and Less-Wired Sensors in Gas Turbines
Sammanfattning : Four types of energy harvesters aimed for gas turbine applications were developed during this thesis. The unique gas turbine environment shaped the design- and material choices. A semiconductor thermoelectric harvester was built for a location in the gas turbine with active cooling at 600°C, with 800°C wall temperature. LÄS MER
4. Screen Printed Thermoelectric Devices
Sammanfattning : Thermoelectric generators (TEG) directly convert heat energy into electrical energy. The impediments as to why this technology has not yet found extensive application are the low conversion efficiency and high costs per watt. On the one hand, the manufacturing process is a cost factor. LÄS MER
5. Conducting Polymer Electrodes for Thermogalvanic Cells
Sammanfattning : Fossil fuels are still the dominant (ca. 80%) energy source in our society. A significant fraction is used to generate electricity with a heat engine possessing an efficiency of approximately 35%. Therefore, about 65% of fossil fuel energy is wasted in heat. LÄS MER