Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 24 for “"energy harvesting systems"”.
-
Electromechanical Suspension-based Energy Harvesting Systems for Railroad Applications
… development of vibration-based electromechanical energy harvesting systems that would provide electrical power in a freight car. With size and shape similar to conventional shock absorbers, these devices are designed to be placed in parallel with the suspension elements, possibly inside the coil …
-
Low power circuits with integrated magnetics for sensors and energy harvesting systems
… led to a proliferation of wireless sensors and systems across the globe. The application space for sensors is wide-ranging: from industries, to serve the upcoming era of Industry 4.0, to consumer products, like body wearable sensors. The rise to billions of sensors relies on two key trends in …
-
Ground-Source Bridge Deck Deicing and Integrated Shallow Geothermal Energy Harvesting Systems
Shallow geothermal energy (SGE) systems are becoming increasingly popular due to both their environmental and economic value. By using the ground as a source and sink for thermal energy, SGE systems are able to more efficiently heat and cool structures. However, their utility beyond structural …
-
Maximizing efficiency of solar energy harvesting systems supplying a microgrid using an embedded system
… system, by contributing to the optimization of energy withdrawn from the PV panel using an embedded system. For this purpose, the model of the PV panel is first studied in accordance with the real behavior of the PV panel. The single diode model of the PV panel is first developed in Matlab …
-
Experimental and Computational Study of Vibration-Based Energy Harvesting Systems for Self-Powered Devices
Energy harvesting of ambient and aeroelastic vibrations is important for reducing the dependence of wireless sensing and networks on batteries. We develop a configuration for a piezoelectric energy harvester with the capability to wirelessly communicate vibration measurements while using those …
-
Design, Modeling and Tests of Electromagnetic Energy Harvesting Systems for Railway Track and Car Applications
… various methods to harvest the mechanical energy present in railcar suspensions and railroad tracks to generate electricity that is suitable for onboard or trackside electronics, using electromagnetic generators. Compact electromagnetic energy harvesters that can be installed onboard …
-
Evaluation of Internal Fin Geometry for Heat Transfer Enhancement in Automobile Exhaust Energy Harvesting Systems
… currently being explored for their potential in harvesting energy from automobile exhaust. TEGs in form of an appropriate TEG- Heat exchanger module can utilize the temperature difference between the hot exhaust gases and the automobile coolant and convert it into electrical voltage. The amount …
-
A Soft-Switched Grid-Connected DC/AC Inverter with Low Current Ripple
Renewable energy sources will soon be responsible for mainstream power generation. The energy produced by these sources needs to be conditioned to compatible forms for the utility grid system. The power conditioning can efficiently be performed through power electronic converters. Thus, power …
-
Downhole vibration sensing by vibration energy harvesting
… a prototype electromagnetic induction vibration energy harvesting device for use in a downhole environment. First order models of the necessary components for a generic vibration energy harvester are presented and used to predict the most sensitive parameters for the design of energy harvesting …
-
Control of Vibratory Energy Harvesters in the Presence of Nonlinearities and Power-Flow Constraints
… has been devoted to developing electromechanical systems that can convert ambient mechanical vibrations into usable electric power. Such systems, referred to as vibratory energy harvesters, have a number of useful of applications, ranging in scale from self-powered wireless sensors for structural …
-
A 1-mW vibration energy harvesting system for moth flight-control applications
… and methodologies required to build a 1-mW energy-harvesting system for moth flight control applications. The crepuscular hawk moth Manduca sexta is the chosen test subject. This project is part of the Hybrid Insect MEMS (HI-MEMS) program. The objective of the program is to establish an …
-
Temperature-Dependent Supramolecular Remodeling of Poly-Ether Perylene Diimides
… use in practical applications from organic energy-harvesting systems to self-healing hydrogels. This thesis investigates a novel PDI, TEL-045, which has been found to exhibit unique properties in solution. In doing so, this serves to expand the possible applications by which these molecules …
-
Multimaterial fiber microelectromechanical systems based on electrostrictive P(VDF-TrFE-CFE)
… enabled the deployment of microelectromechanical systems (MEMS) in a variety of applications, from cell phones and ink-jet printers to drug delivery devices. A recently developed approach for the fabrication of multimaterial fiber devices presents a unique opportunity to realize MEMS in a novel …
-
A Study on Energy Harvesters for Physical Unclonable Functions and Random Number Generation
… for data encryption. Transducers used in the energy harvesting systems of wireless sensor nodes, can generate the PUFs and RNGs. These transducers include piezoelectric devices (piezo), thermoelectric generators (TEG) and solar cells. This research studies the electrical properties of …
-
Optimization of a Plate Beam System for Energy Harvesting Using a Piezoelectric Material
… provides an examination of the potential of energy harvesting with smart materials technology and its practical applications. The energy harvesting system considered here works on generating energy through vibrations of a piezoelectric material beam which will undergo sustained vibrations due …
-
Power Sources for Sensors and Robots in Remote and Inaccessible Environments
… robots. This thesis works towards addressing the energy demand for sensors in those inaccessible environments, and by extension exploring their potential applications. In specific, we approach this goal in 2 aspects. On one hand, we developed and optimized thermal energy harvesting systems to …
-
An assessment of reverse electrodialysis for application to small-scale aquatic systems
… thesis then compares RED to other environmental energy harvesting systems and determines RED to be a competitive power source within the environmental constraints of the Artic. Regarding the use of RED as a secondary power source to charge lithium ion batteries, it is found that it would require …
-
Wireless, Battery-Free, High-Sensitivity 5G RF Energy Harvesters for Next Generation IoT Sensor Tags
… has become a critical challenge. Traditional IoT systems rely on batteries, which present issues of limited lifespan, environmental impact, and maintenance costs, especially in large-scale deployments. As a result, the development of battery-free IoT devices powered by ambient energy harvesting …
-
Harvesting energy from non-ideal vibrations
Energy harvesting has drawn significant interest for its potential to power autonomous low-power applications. Vibration energy harvesting is particularly well suited to industrial condition sensing, environmental monitoring and household environments where low-level vibrations are commonly found. …
-
Smart Prismatic Louver Technology for Enhanced Daylighting and Management of Thermal Loads in Green Buildings
… design strategies for mitigating building energy consumption are daylight redirection and solar energy harvesting. Good daylighting implementation enhances the amount of useful natural light within a space, thereby offsetting the need for electric lighting. Solar energy harvesting systems …
Page 1 of 2