Conversion Efficiency of Thermoelectric Combustion Systems

Min, Gao; Rowe, D.M.

doi:10.1109/tec.2006.877375

Cited by 84 publications

(24 citation statements)

References 7 publications

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“…The first system captured the residual heat (3,4) of the industrial processes, which consisted of a heat transfer module (3) and a heat transfer (hot place) (4), which was responsible for transferring heat (4) by convection from the process to the heat transfer block (3), where the arrangement of the thermoelectric modules (5) was located. In addition, the second system was a hybrid refrigeration-cogeneration set (1, 2, 7, and 8) that was composed of fins (1, 7) and a flat cooling block (2,8), in order to increase the contact area with the thermoelectric modules, simultaneously obtaining hot water (6), which could have even been reused in the industrial process itself, and warranting a thermal gradient for thermoelectric generation.…”

Section: Methods and Designmentioning

confidence: 99%

“…However, there is an energy crisis that has evidenced the limits of the energy supply to meet the growing demand [1,2]. Therefore, it is important to seek new alternative sources that stand out as environmentally sustainable solutions, so as to diversify the energy matrix and thus minimize the environmental impacts, by prioritizing the substitution by renewable sources [3].…”

Section: Introductionmentioning

confidence: 99%

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Characterization of a Thermoelectric Generator (TEG) System for Waste Heat Recovery

2018

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This paper presents the development and characterization of a thermoelectric generator (TEG) system for waste heat recovery to low temperature in industrial processes. The relevance of this mode of electric energy harvest is that it is clean energy and it depends only on the capture of losses. These residual energies from industrial processes are, in principle, released into the environment without being exploited. With the proposed device, the waste energy will not be released into the environment and will be used for electrical generation, which is useful for heat production. The characterization of TEGs that are used a data-acquisition system have measured data for the voltage, current, and temperature, in real-time, for temperatures down to 200 • C without signal degradation. As a result, the measured data has revealed an open circuit voltage of V OC = 0.4306 × ∆T, internal resistance of R 0 = 9.41 Ω, with tolerance ∆R int = ±0.77 Ω, where R int = 9.41 ± 0.77 Ω. The measurements were made on the condition that the maximum output was obtained at a temperature gradient of ∆T = 80 • C, resulting in a maximum power gain of P out ≈ 29 W.

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Section: Methods and Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterization of a Thermoelectric Generator (TEG) System for Waste Heat Recovery

2018

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“…Systems that have been studied and tested in a wide range of industries include planar thick-film thermoelectric microgenerators, 6 microthermoelectric generators for portable electronic devices, 9,11,12 waste heat recovery systems for the automotive as well as furnace industries, [13][14][15][16] as well as some new approaches based on the combination of solar and thermoelectric technology. [17][18][19][20] All of these methodologies have shown promising experimental results for further development.…”

Section: Thermoelectric Generator (Teg)mentioning

confidence: 99%

Electric Power Generation from Thermoelectric Cells Using a Solar Dish Concentrator

Fan

Singh

Akbarzadeh

2011

Journal of Elec Materi

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In this paper, design details, theoretical analysis, and outcomes of a preliminary experimental investigation on a concentrator thermoelectric generator (CTEG) utilizing solar thermal energy are presented. The designed CTEG system consisted of a parabolic dish collector with an aperture diameter of 1.8 m used to concentrate sunlight onto a copper receiver plate with 260 mm diameter. Four BiTe-based thermoelectric cells (TEC) installed on the receiver plate were used to convert the concentrated solar thermal energy directly into electric energy. A microchannel heat sink was used to remove waste heat from the TEC cold side, and a two-axis tracking system was used to track the sun continuously. Experimental tests were conducted on individual cells and on the overall CTEG system under different heating rates. Under maximum heat flux, a single TEC generator was able to produce 4.9 W for a temperature difference of 109°C, corresponding to 2.9% electrical efficiency. The overall CTEG system was able to produce electric power of up to 5.9 W for a 35°C temperature difference with a hot-side temperature of 68°C. The results of the investigation help to estimate the potential of the CTEG system and show concentrated thermoelectric generation to be one of the potential options for production of electric power from renewable energy sources.

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“…However, micro-energy harvesters are an alternative to solve this problem. They convert external mechanical energy into electrical energy by different conversion mechanisms, such as electrostatic, (1)(2)(3) electromagnetic, (4)(5)(6) triboelectric, (7)(8)(9) thermoelectric, (10)(11)(12) and piezoelectric (13)(14)(15)(16) mechanisms. Because piezoelectric harvesters have a simple structure, a high electromechanical coupling coefficient, no requirement for an external voltage source, and a long lifetime, they have been used in volume-limited wireless sensor nodes.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Thick Film Based on Bonding technologies for Energy Harvester

2017

Sensors and Materials

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With the development of low-power-consumption electronic devices and systems, the development of power supplies will be a major challenge. High-performance piezoelectric energy harvesters (PEHs) are an alternative that convert mechanical deformation into electric charge. For PEHs, it is highly desirable to utilize materials with a high piezoelectric charge coefficient. Piezoelectric thick films based on bonding and thinning technologies meet this requirement due to their high-temperature sintering process. In this paper we review the development of piezoelectric thick film fabrication processes, including the direct bonding process and the transferring process. Additionally, PEHs in substrates for different applications are described. Moreover, we summarize and compare the output performance of thick-film-based PEHs from all recently published papers in terms of normalized power density and resonant frequency.

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Conversion Efficiency of Thermoelectric Combustion Systems

Cited by 84 publications

References 7 publications

Characterization of a Thermoelectric Generator (TEG) System for Waste Heat Recovery

Characterization of a Thermoelectric Generator (TEG) System for Waste Heat Recovery

Electric Power Generation from Thermoelectric Cells Using a Solar Dish Concentrator

Piezoelectric Thick Film Based on Bonding technologies for Energy Harvester

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