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.
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Showing 1 to 20 of 40 for “"thermoelectric generator"”.
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A MEMS thermoelectric generator
… batteries, fuel cells, thermophotovoltaic (TPV) generators and thermoelectric (TE) generators. Fuel cells and generators offer significantly improved performance over batteries, but issues of fuel processing and miniaturization remain. Microfabrication has the potential to address this …
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Preliminary design of a cryogenic thermoelectric generator.
A cryogenic thermoelectric generator is proposed to increase the efficiency of a vehicle propulsion system that uses liquid nitrogen as its fuel. The proposed design captures some of the heat required for vaporizing or initial heating of the liquid nitrogen to produce electricity. The …
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Modeling and simulation of a segmented thermoelectric generator
Interest in thermoelectric generators for waste heat recovery has flourished in recent years. Typically, the efficiency of thermoelectric generators (TEGs) is quite low. Investigations are conducted in this thesis to get better performance and efficiency. The segmented leg generator is investigated …
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Small-scale thermoelectric generator for off-grid power
… power. It has been shown in the literature that thermoelectric generators (TEG) can utilize a temperature gradient and convert it into electricity. The hypothesis put forth in this research is to use the naturally occurring temperature gradient that exists in the soil and the thermal energy of …
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The initial transient behavior of a thermoelectric generator
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1960.
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Investigations of a potential high-efficiency thermoelectric generator
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Development of micro-thermoelectric generator (µ-TEG) for powering wearable devices
… of self-powered and autonomous operation. Thermoelectric generator (TEG) energy harvesting technology has garnered significant attention in recent years as an uninterrupted power supply for the continuous operation of wearable devices. TEGs are solid-state devices employed to convert heat …
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Breaking the thermo-mechanical coupling of thermoelectric materials : determining the viability of a thermoelectric generator
Thermoelectric power generators (TEGs) convert a temperature difference into electricity. This temperature difference can be created from waste heat. Since up to 50% [1] of US industrial energy input is lost as waste heat, an economical means of recovering waste heat and converting it into useful …
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Modeling of solar thermal selective surfaces and thermoelectric generators
A thermoelectric generator is a solid-state device that converts a heat flux into electrical power via the Seebeck effect. When a thermoelectric generator is inserted between a solar-absorbing surface and a heat sink, a solar thermoelectric generator is created which converts sunlight into …
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Coupled Thermoelectric and Piezoelectric Meta Structures for Renewable Energy Generation
This work focuses on the combination of thermoelectric and piezoelectric materials into a new hybrid generator. It was discovered that a hybrid thermoelectric piezoelectric generator results in a meta-structure that creates a coupling field effect at the interface between the thermoelectric and …
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EARTH-ABUNDANT METAL CHALCOGENIDES: SYNTHESIS, INTERFACE MODIFICATION, AND APPLICATIONS IN ENERGY CONVERSION DEVICES
… the most common MCs used for photovoltaic and thermoelectric devices all consist rare or toxic elements which rises criticism on their candidacy as a solution for future sustainable energy. The focus of this work is to develop low-cost solution methods to synthesize non-toxic earth-abundant MC …
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Design of Power Converter and Wireless Data Acquisition System for TEG Energy Harvester
… a wireless sensor system which is powered by the Thermoelectric Generator (TEG) Energy Harvester is designed and built. Meanwhile, a power converter circuit has also been designed to converter the output voltage of TEG Energy Harvester to a DC voltage to charge the battery or power the application …
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High-density thermoelectric power generation and nanoscale thermal metrology
Thermoelectric power generation has been around for over 50 years but has seen very little large scale implementation due to the inherently low efficiencies and powers available from known materials. Recent material advances appear to have improved the technology's prospects. In this work we show …
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Improvements to solar thermoelectric generators through device design
A solar thermoelectric generator (STEG) is a device which converts sunlight into electricity through the thermoelectric effect. A STEG is nominally formed when a thermoelectric generator (TEG), a type of solid state heat engine, is placed between a solar absorber and a heat sink. When the solar …
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Thermoelectric Energy Harvesting for Sensor Powering
The dissertation solved some critical issues in thermoelectric energy harvesting and tried to broaden the thermoelectric application for energy recovery and sensor powering. The scientific innovations of this dissertation were based on the new advance on thermoelectric material, device …
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Experimental investigation of an integrated solar driven wastewater treatment system for trigeneration applications
… process and produces hydrogen. A novel solar thermoelectric generator (TEG) unit drives the reactor. For the hot side, the phase change material (PCM) which is heated by the concentrator feeds TEG, and the wastewater stream provides the cold surface. The PEC system is investigated …
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THERMOELECTRIC ENERGY HARVESTING IN DISPLAYS
The development of a complete thermoelectric generator and its application on a display polarizer film was successfully accomplished in this thesis. A systematic study of the prospective thermoelectric materials, PEDOT:PSS-based and ${ZnON}$, used for the present application is presented. To the …
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Oxide based thermoelectric materials for large scale power generation
The thermoelectric (TE) devices are based on the Seebeck and Peltier effects, which describe the conversion between temperature gradient and electricity. The effectiveness of the material performance can be described by its figure of merit, ZT, which is defined as ZT = [alpha]²[sigma]T / [kappa] , …
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Thermoelectric waste heat recovery in automobile exhaust systems: Topological studies and performance analysis
… to exploit exhaust stream thermal power using thermoelectric generators (TEGs) that operate using the Seebeck effect. Thermoelectric generators have the potential to recover some of this waste energy in the exhaust stream potentially improving fuel economy by as much as 5%. ^ Attempts are made …
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Piezoelectric-based Multi-Scale Multi-Environment Energy Harvesting
… piezoelectric energy harvesters and a magneto-thermoelectric generator are treated from the perspective of system design. In the area of materials development, PbTiO3 (PTO) nanostructures consisting of nanofibers and three-dimensional (3-D) nanostructure arrays were hydrothermally synthesized. …
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