Search for dissertations about: "harvester"
Showing result 1 - 5 of 21 swedish dissertations containing the word harvester.
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1. Energy Harvesting for Wireless and Less-Wired Sensors in Gas Turbines
Abstract : 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. READ MORE
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2. Energy Harvesting and Energy Storage for Wireless and Less-Wired Sensors in Harsh Environments
Abstract : 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. READ MORE
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3. Towards an on-chip power supply: Integration of micro energy harvesting and storage techniques for wireless sensor networks
Abstract : The lifetime of a power supply in a sensor node of a wireless sensor network is the decisive factor in the longevity of the system. Traditional Li-ion batteries cannot fulfill the demands of sensor networks that require a long operational duration. READ MORE
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4. Wirelessly Powered Communications: From Signal Optimization to Antenna Design
Abstract : Future internet-of-things (IoT) and beyond 5G communication systems are envisioned to offer large-scale wireless connectivity where the different components of life, society and industry are connected in a smart yet sustainable way. The need for continuous battery charging and/or replacement is a bottleneck for sustainability in these systems. READ MORE
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5. Improved harvesting technology for thinning of small diameter stands : impact on forest management and national supply of forest biomass
Abstract : Forest biomass is used as feedstock for forest products as well as for bioenergy. The current Swedish roundwood utilization is near the sustainable maximum. READ MORE