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 32 for “"Power generator"”.
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An Investigation of Micro-Hydro Power Generator Characteristics
… the electrical characteristics of hydroelectric power systems has to the author’s knowledge, not received much attention. However, renewed interest in hydropower microgeneration has created a need to understand the underlying properties. This thesis presents a pioneering empirical investigation …
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Harmonic analysis in power network with renewable power generator
… the world. A large number of renewable energy generators, more highly sensitive electronic equipment and more electronics or microprocessor controllers are used in the power system. It has brought new challenges to supply quality, and thus the study of Power Quality (PQ) has become obviously …
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Piezoelectric Micro Power Generator (PMPG) : a MEMS-based energy scavenger
… Auto ID tag has demonstrated the need for a power source with the characteristics of our Piezoelectric Micro Power Generator (PMPG). The PMPG is a MEMS-based energy scavenging device which converts ambient, vibrational energy into electrical energy. It consists of a composite micro-cantilever …
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Modeling and design considerations for a micro-hydraulic piezoelectric power generator
… Micro-Hydraulic Transducers are compact high power density transducers, which can function bi-directionally as actuators/micropumps and/or power generators. They are designed to generate 0.5-1W power at frequencies of ~10-20kHz, resulting in high power densities approaching 500W/kg. These …
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Self-powered wireless sensor system using MEMS piezoelectric micro power generator (PMPG)
… titanate, Pb(Zr,Ti)03, MEMS Piezoelectric Micro Power Generator (PMPG) has been integrated with a commercial wireless sensor node (Telos), to demonstrate a self-powered RF temperature sensor module. PMPG and a power management module are designed to satisfy sensor node's power requirement. An …
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An air-breathing, portable thermoelectric power generator based on a microfabricated silicon combustor
… and weight has put increased pressure on the power density of available power storage and generation options, which have been dominated by batteries. The energy densities of many hydrocarbon fuels exceed those of conventional batteries by several orders of magnitude, and this gap motivates …
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Lithium ion power generator : a novel system for direct thermal to electric energy conversion
… to miniaturization and true autonomy is how to power sensors. Lithium ion batteries have been ideal power sources due to their high power density, but autonomy requires some form of power generation. The unique demands of miniaturization require power generation that can be isothermal and have a …
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Design criteria for a medium-powered, dynamically converted radioisotopic power generator for terrestrial use.
Thesis: B.S., Massachusetts Institute of Technology, Department of Nuclear Engineering, 1978
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Design of a model pipeline for testing of piezoelectric micro power generator for the Trans-Alaska Pipeline System
… System (TAPS), a distributed wireless self-powered sensor array is needed to monitor the entire length of the pipeline at all times. Such a sensor faces two primary challenges: a method to provide power for the sensor, and a method to detect corrosion. This project has two goals: to build a …
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Numerical and Experimental Design of High Performance Heat Exchanger System for A Thermoelectric Power Generator for Implementation in Automobile Exhaust Gas Waste Heat Recovery
… waste heat energy and convert it to electrical power. Thermoelectric devices work on the principle of the Seebeck effect, which states that if two junctions of dissimilar materials are at different temperatures, an electrical potential is developed across them. Even though these devices have …
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Az Európai Unió emissziókereskedelmi rendszerében résztvevő gázerőmű reálopciós döntési modelljének alkalmazásai = Real option decision model applications for a European Union Emissions Trading System participant gas-fueled power generator
Az értekezésben egy EU ETS résztvevő gáztüzelésű villamos erőműre vonatkozó reálopciós döntési modell néhány fontos alkalmazását ismertetem. A technológiai korlátozó tényezők (például minimum üzemelési idő, felfuttatási költségek) elhanyagolása esetén a profitmaximalizáló erőmű csak abban az …
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Smart Nanocoated Structure for Energy Harvesting at Low Frequency Vibration
… electrical energy that can be stored and used to power other devices. With the recent surge of micro scale devices, piezoelectric power generation can provide a convenient alternative to traditional power sources. In this research, a piezoelectric power generator composite prototype was developed …
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Short Distance Telemetry for Piston Monitoring. Design and Development of Short Distance Telemetry for Engine Condition Monitoring.
… of the reciprocating motion of the piston, power generation is intermittent and available only when the piston reaches near bottom dead centre, using inductive coupling to power the sensors and transmit data to an evaluation unit for data processing. The planned system involves designing and …
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Characterizing the thermal efficiency of thermoelectric modules
… that act reversibly as both a heat pump and a power generator. The experimental setup encased the modules in an insulating container and thermal power was provided by a variable power cartridge heater, using type-K thermocouples to measure the temperature difference across the module. The …
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Innovative Platform Design for In Vitro Primary Blast Injury Research
… In this thesis, a redesigned benchtop shock wave generator (SWG) has provided a platform for in vitro models. A pulsed power generator charges a capacitor and discharges the capacitor through a bridge wire. The discharge causes the bridge wire to experience phase changes, momentarily becoming a …
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Design of a low power VLSI systems powered by ambient mechanical vibration
Low power design trends raise the possibility of using ambient energy to power future digital systems. This thesis explores the design of such systems for collecting and processing data from sensors. The low throughput requirements of this type of computation allows aggressive scaling of supply …
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Photovoltaic cell efficiency at elevated temperatures
… be used in a thermoelectric photovoltaic hybrid power generator, we tested the change in efficiency due to higher temperatures of three types of solar cells: a polymer cell, an amorphous silicon cell and a CIS cell. Using an AM1.5 G solar simulator at 973 W/m2 we took the I-V curve of each of the …
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Robust de-centralized control and estimation for inter-connected systems
… mathematical example representing an electrical power generator.- The development of a new method to design a dynamic control based on an LMI framework with Output Integral Sliding Mode Control (OISMC) to improve the stability and performance.- Using the above framework, making use of LMI tools …
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Development and validation of a combustion model for a fuel cell off-gas burner
A low-emissions power generator comprising a solid oxide fuel cell coupled to a gas turbine has been developed by Rolls-Royce Fuel Cell Systems. As part of the cycle, a fraction of the unreacted fuel (the off-gas) and oxidizer streams is reacted in a burner, which is the main source of pollutant …
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