Development of a Small Thermoelectric Generators Prototype for Energy Harvesting from Low Temperature Waste Heat at Industrial Plant

Chiarotti, U.; Moroli, Valerio; Menchetti, F.; Piancaldini, Roberto; Bianco, Loris; Viotto, Alberto; Baracchini, Giulia; Gaspardo, Daniele; Nazzi, Fabio; Curti, Maurizio; Gabriele, Massimiliano

doi:10.1166/jnn.2017.13723

Cited by 8 publications

(6 citation statements)

References 5 publications

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“…For example, power generation using various heat sources including a deep sea hydrothermal vent, [353,354] stoves, [355] industrial furnaces, [356][357][358] or even geothermal environments. Additionally, TEGs have far more applications in some extreme conditions.…”

Section: Power Supply Using Other Heat Sourcesmentioning

confidence: 99%

“…Additionally, TEGs have far more applications in some extreme conditions. For example, power generation using various heat sources including a deep sea hydrothermal vent, stoves, industrial furnaces, or even geothermal environments . A summary of recently developed TEGs for other applications can be seen in Table 4 .…”

Section: Thermoelectric Applications and Devicesmentioning

confidence: 99%

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High Performance Thermoelectric Materials: Progress and Their Applications

Yang

Chen

Dargusch

et al. 2017

Advanced Energy Materials

616

434

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Thermoelectric (TE) materials have the capability of converting heat into electricity, which can improve fuel efficiency, as well as providing robust alternative energy supply in multiple applications by collecting wasted heat, and therefore, assisting in finding new energy solutions. In order to construct high performance TE devices, superior TE materials have to be targeted via various strategies. The development of high performance TE devices can broaden the market of TE application and eventually boost the enthusiasm of TE material research. This review focuses on major novel strategies to achieve high‐performance TE materials and their applications. Manipulating the carrier concentration and band structures of materials are effective in optimizing the electrical transport properties, while nanostructure engineering and defect engineering can greatly reduce the thermal conductivity approaching the amorphous limit. Currently, TE devices are utilized to generate power in remote missions, solar–thermal systems, implantable or/wearable devices, the automotive industry, and many other fields; they are also serving as temperature sensors and controllers or even gas sensors. The future tendency is to synergistically optimize and integrate all the effective factors to further improve the TE performance, so that highly efficient TE materials and devices can be more beneficial to daily lives.

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Section: Power Supply Using Other Heat Sourcesmentioning

confidence: 99%

Section: Thermoelectric Applications and Devicesmentioning

confidence: 99%

High Performance Thermoelectric Materials: Progress and Their Applications

Yang

Chen

Dargusch

et al. 2017

Advanced Energy Materials

616

434

View full text Add to dashboard Cite

show abstract

“…With this result and using Equation ( 4), the heat released to the ambient by this thermoelectric generator can be estimated, and the thermal resistance of this finned dissipater, R FD hex_c , is determined, see Equation (9).…”

Section: Analysis Methodologymentioning

confidence: 99%

“…Nesarajah et al [8] have built a 2 W prototype to harvest waste heat from a hot gas current. Chiarotti et al [9] show an example of a thermoelectric generator that is able to produce up to 36 W of electric power using a water flow at 90 °C as the heat source. This study includes the consumption of the auxiliary equipment used on the cold side of the generator, leading to a decrease in the net production to 20 W. Børset et al [10] present a thermoelectric generator employed in a metal casting plant that absorbs the heat by radiation from a heat source at 1400 °C producing up to 160 W/m 2 of electric output.…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Generator with Passive Biphasic Thermosyphon Heat Exchanger for Waste Heat Recovery: Design and Experimentation

et al. 2021

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One of the measures to fight against the current energy situation and reduce the energy consumption at an industrial process is to recover waste heat and transform it into electric power. Thermoelectric generators can be used for that purpose but there is a lack of experimental studies that can bring this technology closer to reality. This work presents the design, optimizations and development of two devices that are experimented and compared under the same working conditions. The hot side heat exchanger of both generators has been designed using a computational fluid dynamics software and for the cold side of the generators two technologies have been analysed: a finned dissipater that uses a fan and free convection biphasic thermosyphon. The results obtained show a maximum net generation of 6.9W in the thermoelectric generator with the finned dissipater; and 10.6W of power output in the generator with the biphasic thermosyphon. These results remark the importance of a proper design of the heat exchangers, trying to get low thermal resistances at both sides of the thermoelectric modules, as well as, the necessity of considering the auxiliary consumption of the equipment employed.

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“…In addition to natural heat transfer, there are also studies on the use of industrial waste heat. Chiarotti et al [11] designed a smaller power prototype to recover heat from industrial water. Cheng et al [12] developed a 1.2 kW TEG project by using industrial waste heat.…”

Section: Introductionmentioning

confidence: 99%

An experiment on full-day power generation building fabric component for zero-energy buildings

Li¹

2021

Preprint

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Thermal electricity generation (TEG) is a potential method to utilize energy emitted from the built environment. This work presents a prototype of the low-cost full-day power generation solar building component, which can be integrated as the building fabric or as a part of the solar panels. The size of the prototype is 0.04 m2. The overall cost is less than 25 USD. The prototype is tested in various environments to validate its performance. The first experiment tests its performance under the radiation of a high-temperature source, the prototype can generate the highest voltage of 0.8 V. In onsite experiments, it can reach a maximum value of 10 mW/m2 under sunlight. It can also work at night depending on the thermal radiation of the environment. It can also be used in different weather; the performance is even better than the nighttime. The experiments indicate that radiation heat transfer has a stronger influence on energy conversion than the convective heat transfer. The relative humidity has a certain influence on its performance, but there is no obvious effect of radiation heat transfer. Although the prototype has great potential, there are still limitations, and this article also discusses the problems. Meanwhile, this article also points out possible directions for improving design in the future. The results in this article might be helpful for zero-energy buildings and low-carbon buildings.

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Development of a Small Thermoelectric Generators Prototype for Energy Harvesting from Low Temperature Waste Heat at Industrial Plant

Cited by 8 publications

References 5 publications

High Performance Thermoelectric Materials: Progress and Their Applications

High Performance Thermoelectric Materials: Progress and Their Applications

Thermoelectric Generator with Passive Biphasic Thermosyphon Heat Exchanger for Waste Heat Recovery: Design and Experimentation

An experiment on full-day power generation building fabric component for zero-energy buildings

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