Performance assessment of annular thermoelectric generators for automobile exhaust waste heat recovery

Huang, Bin; Shen, Zu-Guo

doi:10.1016/j.energy.2022.123375

Cited by 37 publications

(10 citation statements)

References 50 publications

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“…al. [11] After conducting the numerical analysis, the HX was manufactured and assembled on the experimental test setup. During the experimental studies, the engine was operated at three different speeds and four different engine torques.…”

Section: Resultsmentioning

confidence: 99%

Improving the Efficiency of Waste Heat Recovery Systems by Means of a Novel Combined Turbine-Peltier System

TEKİN,

BARZEGAR,

SÖYLEMEZ

2023

Preprint

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A novel Combined Turbine-Peltier System (CTPS) was designed and built to harness both thermal and kinetic energies of the exhaust gas of an engine and convert it to electrical power. The Turbine-Generator was connected to the turbocharger shaft and the Thermoelectric Generators (TEG) were assembled between the heat exchangers mounted on the exhaust pipe. The Computational Fluid Dynamics (CFD) approach and Taguchi optimization technique were employed in order to analyze and optimize the flow field and heat transfer characteristics of the system. Based on the optimized numerical results, an experimental setup was designed and manufactured, and the experiments were conducted on an engine operating at different load and speed conditions. The harvested maximum power output for a single TEG was 5.5 W with the thermal efficiency of 3.6% and the net output power of the CTPS was 190 W obtained at the engine speed of 3000 rpm. The maximum increase in the power of the ICE combined with CTPS method was calculated as 1.6%. The obtained numerical results were compared with the experiments and showed a good accordance with the maximum deviation of 6%.

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Section: Resultsmentioning

confidence: 99%

Improving the Efficiency of Waste Heat Recovery Systems by Means of a Novel Combined Turbine-Peltier System

TEKİN,

BARZEGAR,

SÖYLEMEZ

2023

Preprint

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“…However, this decreases significantly with increasing exhaust flow rate. They recommended the use of a cylinder with a dimensionless diameter of 0.8 for gasoline cars (Huang and Shen, 2022).…”

Section: Song Et Al Performed Thermoelectric Generator (Teg) Optimiza...mentioning

confidence: 99%

Gemi Makinelerinde Egzoz Atık Isısının Geri Kazanımı İçin Bir Termoelektrik Sistemin Sonlu Elemanlar Yöntemiyle Tasarımı ve Analizi

TOL¹,

SARMAN²,

TİKIZ³

et al. 2022

jomaramphora

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When studies on this subject are examined, it is discovered that trials are generally on land vehicles, with no examples in maritime sector. When studies were examined, it was discovered that, while no large thermoelectric generators were encountered, temperature values could also be captured in ship's chimney. As result studies, we concluded that system would also be applicable on ships. The exhaust outlet temperatures on ships are 500℃ at exhaust manifold, 450℃ at turbocharger inlet, 300℃ at turbocharger outlet, and around 200℃ at chimney boiler outlet. The silencer device at the exit of chimney boiler was thought to be the best location for thermoelectric module's operating temperatures, so detailed technical drawings were examined.

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“…25 This is because heat is mostly recovered from heat sources via tubes 26,27 and exhausts. 28 In addition, the use of a passive cooling technique by adding fins, referred to as tubular fins, can effectively enhance the heat dissipation from tubular TEGs. 29 TEGs generate electric power by utilizing waste heat from several heat sources via direct and indirect methods.…”

Section: Introductionmentioning

confidence: 99%

“…For a circular surface, a mechanism was built to recover heat from a tubular structure 25 . This is because heat is mostly recovered from heat sources via tubes 26,27 and exhausts 28 . In addition, the use of a passive cooling technique by adding fins, referred to as tubular fins, can effectively enhance the heat dissipation from tubular TEGs 29 .…”

Section: Introductionmentioning

confidence: 99%

Waste heat recovery from household biomass gasifier stoves (HBGSs) for thermoelectric generators: Effect of the primary air valve angle

Kaewluan,

Wiriyasart

2023

Heat Trans

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Household biomass gasifier stoves (HBGSs) are used in remote areas using natural firewood that is burned in the HBGS for general purposes, such as cooking and warming in winter. The heat dissipation from the walls is assumed to be heat loss. This paper evaluates the electrical performance of thermoelectric generators (TEGs) using heat recovered from the hot walls of an HBGS, considering the effect of three primary air valve angles of 0°, 9°, and 18°. The heat recovered from the HBGS that is electrically transferred through a TEG is assessed. The results showed that the wall heat loss increases with the primary air valve angle of the HBGS. The upper zone near the HBGS gas combustion zone exhibits higher wall temperatures than the middle and lower zones, with a maximum wall temperature of 140°C resulting in an output voltage of 2.55 V. However, the middle and lower zones are also considered as their capacities are consistent with the TEG temperature range. The heat loss from the HBGS is considerably larger than that from other heat sources, and the specific heating area of the heat source is a variable that should be considered to increase the number of TEGs to achieve the desired output values for practical applications. Furthermore, this research serves as a guideline for applying TEGs to recover waste heat from various applications.

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Performance assessment of annular thermoelectric generators for automobile exhaust waste heat recovery

Cited by 37 publications

References 50 publications

Improving the Efficiency of Waste Heat Recovery Systems by Means of a Novel Combined Turbine-Peltier System

Improving the Efficiency of Waste Heat Recovery Systems by Means of a Novel Combined Turbine-Peltier System

Gemi Makinelerinde Egzoz Atık Isısının Geri Kazanımı İçin Bir Termoelektrik Sistemin Sonlu Elemanlar Yöntemiyle Tasarımı ve Analizi

Waste heat recovery from household biomass gasifier stoves (HBGSs) for thermoelectric generators: Effect of the primary air valve angle

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