نتایج جستجو برای: thermoelectric generator
تعداد نتایج: 51836 فیلتر نتایج به سال:
Nowadays humans are facing difficult issues, such as increasing power costs, environmental pollution and global warming. In order to reduce their consequences, scientists concentrating on improving generators focused energy harvesting. Thermoelectric (TEGs) have demonstrated capacity transform thermal directly into electric through the Seebeck effect. Due unique advantages they present, thermoe...
ABSTRACT This paper reports on a thermoelectric generator (TEG) used for converting human body heat energy to electrical energy. The proposed TEG was composed of a polydimethylsiloxane (PDMS) substrate and thermocouples. The use of PDMS provides flexibility to the TEG and low thermal conductivity that helps minimize losses in the effective heat flowing through the thermocouples. The proposed TE...
Transient multiphysics simulations are performed to investigate the thermal and electric performance of a thermoelectric generator (TEG) module placed between hot and cold blocks. Effects of heat radiation, thermal and electric contact on the TEG are examined and the simulated results are compared with experimental data. The predicted temperature difference across the TEG module and the electri...
The presented paper gives an overview of basic principles and recent trends in power management electronics for thermoelectric energy harvesting. Energy harvesting systems are a modern way how to feed the autonomous devices on-site using ambient energy. The ambient energy in the case of thermoelectric generators is represented by temperature gradients. Different temperatures are applied to the ...
Bismuth telluride and its alloys are widely used as materials for thermoelectric refrigeration. They are also the best materials for use in thermoelectric generators when the temperature of the heat source is moderate. The dimensionless figure of merit, ZT, usually rises with temperature, as long as there is only one type of charge carrier. Eventually, though, minority carrier conduction become...
We report the development of a Si-based micro thermogenerator build from silicon-oninsulator by using standard CMOS processing. Ultrathin layers of Si, 100 nm in thickness, with embedded n and p-type doped regions electrically connected in series and thermally in parallel, are the active elements of the thermoelectric device that generate the thermopower under various thermal gradients. This pr...
This paper describes the design of twoand three-stage cascaded oxide thermoelectric generators (TEGs) for high-temperature heat recovery using reported data to optimize energy conversion efficiency. We used the general intermetallic compounds Bi2(Se,Te)3 and (Bi,Sb)2Te3 for the low-temperature stages and oxides of TiO1:1, La-doped SrTiO3, NaxCo2O4, and Al-doped ZnO for the higher-temperature st...
During recent years, microelectronics helped to develop complex and varied technologies. It appears that many of these technologies can be applied successfully to realize Seebeck micro generators: photolithography and deposition methods allow to elaborate thin thermoelectric structures at the micro-scale level. Our goal is to scavenge energy by developing a miniature power source for operating ...
The Microgrid is a small-scale controlled power system, which can be used in islanded mode or in a grid-connected one to provide power. In the islanded Microgrid, the system frequency will be affected severely by the smallest disturbance which can happen due to light inertia in the system. In the independent Microgrid, several generation sources such as solar, wind, and so on can be considered....
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