Design optimization of plate-fin heat sink with forced convection for single-module thermoelectric generator

Pujol, Toni; T’Jollyn, Ilya; Massaguer, E.; Massaguer, A.; Cózar, I.R.; Paepe, Michel De

doi:10.1016/j.applthermaleng.2022.119866

Cited by 20 publications

(4 citation statements)

References 41 publications

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“…1,2 Taking a thermoelectric generator (TEG), which can convert heat into electricity as an example, the heat-to-electricity conversion efficiency depends not only on the material and device properties, [3][4][5][6] but also on the heat dissipation capacity, which affects the temperature difference and output performance. [7][8][9] Similarly, solar cells suffer from reduced stability, lifetime, and efficiency when their operating temperature increases. 10,11 Adopting the cooling systems can reduce the temperature of photovoltaic modules by 6-30 1C and enhance electricity generation efficiency by 15.5-22%.…”

Section: Introductionmentioning

confidence: 99%

A high heat dissipation strategy based on a multi-scale porous hydrogel and heat sink exhibiting cooling capacity comparable to that of forced air convection but with zero energy consumption

Yan,

Zhang,

Feng

et al. 2024

Mater. Adv.

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Section: Introductionmentioning

confidence: 99%

A high heat dissipation strategy based on a multi-scale porous hydrogel and heat sink exhibiting cooling capacity comparable to that of forced air convection but with zero energy consumption

Yan,

Zhang,

Feng

et al. 2024

Mater. Adv.

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“…It was applied to determine the heat sink design that optimized the net electrical power for given values of hot source temperature, TEG properties, and duct cross-section. The optimal heat sink designs predicted by the model for the cases studied had fin thicknesses of 0.32 and 0.44 mm with fin-to-fin distances of 1 mm [ 37 ]. Qasim et al developed a CFD model for a TEG consisting of five TE modules embedded between two aluminum blocks.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Analysis of a Prototypical Thermoelectric Generator Dedicated to Wood-Fired Heating Stove

Sornek

Papis-Frączek

2023

Micromachines

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The typical operating range of domestic heating devices includes only heat generation. However, the availability of combined heat and power generation in microscale devices is currently becoming a more and more interesting option. This paper shows the experimental and numerical analysis of the possibility of developing a micro-cogeneration system equipped with a wood-fired heating stove and a prototype of the thermoelectric generator equipped with low-price thermoelectric modules. In the first step, mathematical modeling made it possible to analyze different configurations of the hot side of the thermoelectric generator (computational fluid dynamics was used). Next, experiments have been conducted on the prototypical test rig. The maximum power obtained during the discussed combustion process was 15.9 We when the flue gas temperature was approximately 623 K. Assuming a case, when such value of generated power occurred during the whole main phase, the energy generated would be at a level of approximately 33.1 Whe, while the heat transferred to the water would be approximately 1 078.0 Whth. In addition to the technical aspects, the economic premises of the proposed solution were analyzed. As was shown, an installation of TEG to the existing stove is economically not viable: the Simply Payback Time will be approximately 28.9–66.1 years depending on the analyzed scenario. On the other hand, the SPBT would be significantly shorter, when the installation of the stove with an integrated thermoelectric generator was considered (approximately 5.4 years). However, it should be noted that the introduction of the power generating system to a heat source can provide fully or partially network-independent operation of the hot water and heating systems.

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“…The study was conducted by analyzing the effects of various heat sink designs on the overall performance of the thermoelectric modules. Pujol et al [ 22 ] carried out a design optimization for a plate-fin heat sink with forced convection for a single-module thermoelectric generator. The research results showed that the optimization had effectively improved the efficiency and power generation capabilities of the thermoelectric generator.…”

Section: Introductionmentioning

confidence: 99%

Effects of Installing Different Types of Cooling Fins on the Cold Side of a Thermoelectric Power Generation Device on the Thermal Efficiency and Exergy Efficiency of Power Cable Surface Waste Heat Recovery

León

Wang

et al. 2023

Micromachines

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This study investigates the thermal efficiency and exergy efficiency of a thermoelectric power generation device for recovering power cable surface waste heat. Numerical simulations are conducted to analyze the impact of different types of cooling fins on the system’s performance. The results demonstrate that the installation of cooling fins improves heat transfer efficiency and enhances the thermoelectric power generation device’s output power. Among the various fin designs, the system equipped with cooling fins with 17 teeth exhibits the highest performance. These findings highlight the importance of fin design in optimizing the system’s thermal efficiency and exergy efficiency. This study provides valuable insights for the development and improvement of thermoelectric power generation systems for power cable surface waste heat recovery applications.

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Design optimization of plate-fin heat sink with forced convection for single-module thermoelectric generator

Cited by 20 publications

References 41 publications

A high heat dissipation strategy based on a multi-scale porous hydrogel and heat sink exhibiting cooling capacity comparable to that of forced air convection but with zero energy consumption

A high heat dissipation strategy based on a multi-scale porous hydrogel and heat sink exhibiting cooling capacity comparable to that of forced air convection but with zero energy consumption

Numerical and Experimental Analysis of a Prototypical Thermoelectric Generator Dedicated to Wood-Fired Heating Stove

Effects of Installing Different Types of Cooling Fins on the Cold Side of a Thermoelectric Power Generation Device on the Thermal Efficiency and Exergy Efficiency of Power Cable Surface Waste Heat Recovery

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