3D study of the impact of aspect ratio and tilt angle on the thermoelectric generator power for waste heat recovery from a chimney

Khalil, Hesham; Hassan, Hamdy

doi:10.1016/j.jpowsour.2019.02.020

Cited by 24 publications

(7 citation statements)

References 25 publications

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“…However, the relationship was proportional to the velocity of water flow [ 38 ]. In [ 39 ], the authors examined the effect of aspect ratio and tilt angle on the performance of a TEG located in a chimney. When the number of TEGs was limited or the available surface area is large, the increase in the distance between TEGs to four lengths enhances their power by about 45%.…”

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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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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“…Different from other waste heat recovery devices, TEG has numerous advantages like no moving parts, silent operation, and high reliability. [1][2][3][4] It has a wide range of applications, including the combined heat and power system for stoves, [5][6][7] body heat harvesting, [8] automobile, [9][10][11][12] and aircraft and helicopters. [13] However, its power and conversion efficiency is extremely low, especially in lower-temperature difference.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Investigation about the Influence of Peltier Effect on the Temperature Loss and Performance Loss of Thermoelectric Generator

Wang

Meng

et al. 2022

Energy Tech

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“…Khalil et al. [ 10 ] optimized the structure of industrial smoke exhaust ducts by changing the angle of inclination. They found that the maximum output power can be increased by 5% when the inclination is 15°.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design and Performance Analysis of Thermoelectric Power Generation Device Based on Multi‐Objective Genetic Algorithm

Chen

Dou

et al. 2021

Advcd Theory and Sims

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The combined use of flue gas waste heat resources and thermoelectric generators (TEGs) is considered to be a relatively reliable method to generate electricity. The focus of this study is on the optimization and improvement of the hot‐end heat collection pipe. This paper aims to increase the temperature difference between hot and cold ends of TEG and enhance uniformity of temperature distribution, thereby improving the output power of the TEG system. To balance the temperature difference between the cold and hot ends of the TEG, the pressure drop from the inlet to the outlet and the mass of TEG hot end pipes, a finite element simulation model is constructed. Meanwhile, a multi‐objective genetic algorithm is applied to optimize the structure of four dimensions: fin bottom length, fin height, fin thickness, and outlet diameter. Three optimization objectives, namely, average temperature difference, total pressure drop from inlet to outlet, and pipeline mass are globally optimized to determine the best size, based on which the accuracy of the simulation model is verified by conducting experiments.

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3D study of the impact of aspect ratio and tilt angle on the thermoelectric generator power for waste heat recovery from a chimney

Cited by 24 publications

References 25 publications

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

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

Theoretical and Experimental Investigation about the Influence of Peltier Effect on the Temperature Loss and Performance Loss of Thermoelectric Generator

Optimal Design and Performance Analysis of Thermoelectric Power Generation Device Based on Multi‐Objective Genetic Algorithm

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