Modeling and Simulation of a Thermoelectric Generator Using Bismuth Telluride for Waste Heat Recovery in Automotive Diesel Engines

Eddine, Ali Nour; Sara, Hanna; Chalet, David; Faure, Xavier; Aixala, L.; Cormerais, M.

doi:10.1007/s11664-019-06999-w

Cited by 11 publications

(5 citation statements)

References 25 publications

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“…The converted electrical energy was used to charge a 12 V battery. 34 Li et al designed a five-layer TEG module for power generation and measured the influence of flow rate, temperature, and temperature difference between hot and cold sides on power output and efficiency. 35 One can see that many papers have been published in this area of TEG modeling.…”

Section: Introductionmentioning

confidence: 99%

“…Eddine et al developed a dynamic model to investigate the application of a thermoelectric generator in the recovery of exhaust heat from automobile engines. The converted electrical energy was used to charge a 12 V battery . Li et al designed a five-layer TEG module for power generation and measured the influence of flow rate, temperature, and temperature difference between hot and cold sides on power output and efficiency …”

Section: Introductionmentioning

confidence: 99%

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Modeling the Effects of Module Size and Material Property on Thermoelectric Generator Power

Wang

Zhang

et al. 2020

ACS Omega

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It is known that thermoelectric power generators (TEGs) can utilize geothermal resources and recycle waste heat. It is vital to improve the thermoelectric power generation efficiency to economically and efficiently use these thermal resources. In this paper, ANSYS was used to build a three-dimensional model of a very simple TEG with only one pair of p- and n-legs (1-PN-TEG) to find the optimal design. The thickness of the semiconductor elements, the cross-sectional area of p- and n-type semiconductor elements, the heat insulation material, the thickness of copper sheet, and other factors were analyzed to study their effects on the power output of 1-PN-TEG. The results show that the power of TEG increases first and then decreases with the thickness of p- and n-legs (H); the maximum power existed at a specific value of H. The power increases when the cross-sectional areas of p- and n-type semiconductor elements become more extensive, but the power per area decreases. Furthermore, the power increases with the volume of p- and n-type semiconductor elements and tends to be stabilized finally. This observation may be used to estimate how much thermoelectric material is required to generate a specific value of TEG power. The gaps between p- and n-type semiconductor elements were filled with different heat insulation materials. The heat insulation material with lower thermal conductivity had a greater power output. The thickness of the copper sheet, as a conductor between p- and n-type semiconductor elements, was also investigated. The maximum power value was reached when the thickness of the copper sheet was equal to about 1.0 mm. All of the results obtained in this paper might provide a theoretical basis for the configuration and design optimization of a thermoelectric generator, making more efficient use of geothermal resources and the waste heat.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling the Effects of Module Size and Material Property on Thermoelectric Generator Power

Wang

Zhang

et al. 2020

ACS Omega

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“…They have obtained conversion efficiencies in the range of 0.05-0.35% and 0.26-0.4% for the Si80Ge20 and Bi2Te3 TE modules, respectively, for a Diesel engine exhaust temperature of 380 °C. In their other work, Nour Eddine et al established a model to investigate a TEG for waste heat recovery from the exhaust gas of an automotive engine [12]. They have reached a maximum generated TEG power of 42 W for 671 K of TEG hot side temperature and 354 K of cold side temperature.…”

Section: Introductionmentioning

confidence: 99%

Isı Kuyuları Kullanılarak Bir Termoelektrik Jeneratörün Sıcak ve Soğuk Yüzeyindeki Isı Transferinin Sayısal Olarak İncelenmesi

Kılınç

2023

Turkish Journal of Science and Technology

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This study represents CFD analyses to improve the heat transfer on the two sides of a thermoelectric generator (TEG) by utilizing heat sinks to recover the waste heat of hot air. In this respect, the temperature difference (ΔT) between the hot and cold sides of the TEG, the heat transfer rate on the hot (q ̇_h) and cold sides (q ̇_c) and the pressure drop (ΔP) between the inlet and outlet of the hot and cold air are investigated for varying hot air inlet temperature (Thi) and Re number in terms of improving the heat transfer and accordingly the output power of the TEG. According to the numerical results, the maximum ΔT concerning Thi of 600 °C and Re number of 16800 is specified as 418.9 °C and 478.1 °C, respectively. In terms of heat transfer, maximum q ̇_h for Thi of 600 °C and Re number of 16800 is specified as 180.4 W and 205.1 W, respectively, while the maximum q ̇_c is specified as 168.0 W and 192.6 W. The maximum ΔP occurs as 304.4 Pa for the Re number of 16800. As a result, increasing Thi and Re number yields an increase in ΔT, q ̇_h, and q ̇_c. Besides, ΔP increases with increasing Re number.

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“…At present, much progress have been made in the research of waste heat recovery from vehicles 1,2 and ship waste heat 3,4 by means of thermoelectric generation (TEG). After the establishment of a thermoelectric theoretical model with modular and spatial characteristics, 5 the researchers have designed TEG devices based on the waste heat of diesel generator, 6 air compressor, 7 air cooler, 8 and evaluated their performance from both theory and experiment. On the other hand, organic Rankine cycle (ORC) technology has been widely applied in the field of low temperature waste heat recovery, by integrating other types of circulatory systems with ORC systems, research on working fluid selection, energy efficiency and economic model makes the output performance of the integrated system the best.…”

Section: Introductionmentioning

confidence: 99%

Study on a new cascade utilize method for ship waste heat based on TEG‐ORC combined cycle

Shi

Liu

et al. 2021

Env Prog and Sustain Energy

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In order to achieve the efficient cascade utilization of various ship's waste heat, improve the energy efficiency of ships and meet the strict requirements of the new international carbon emission regulations, this article proposes a of TEG-ORC (thermoelectric power generation/organic Rankine cycle) combined cycle, and designs the experimental system. Coupling characteristics of each bottom cycle are taken as the entry point in the combined cycle, using the method of system simulation, the influ-

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Modeling and Simulation of a Thermoelectric Generator Using Bismuth Telluride for Waste Heat Recovery in Automotive Diesel Engines

Cited by 11 publications

References 25 publications

Modeling the Effects of Module Size and Material Property on Thermoelectric Generator Power

Modeling the Effects of Module Size and Material Property on Thermoelectric Generator Power

Isı Kuyuları Kullanılarak Bir Termoelektrik Jeneratörün Sıcak ve Soğuk Yüzeyindeki Isı Transferinin Sayısal Olarak İncelenmesi

Study on a new cascade utilize method for ship waste heat based on TEG‐ORC combined cycle

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