Performance of Thermoelectric Power-Generation System for Sufficient Recovery and Reuse of Heat Accumulated at Cold Side of TEG with Water-Cooling Energy Exchange Circuit

Zhang, Zhe; Zhang, Yuqi; Sui, Xiaomei; Li, Wenbin; Xu, Daochun

doi:10.3390/en13215542

Cited by 16 publications

(5 citation statements)

References 22 publications

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“…The integrated thermoelectric cooler-thermoelectric generator approach [17][18][19][20][21][22][23] has to be mentioned as an ongoing direction for improving the performance of thermoelectric systems. Such an approach is focused on waste heat recovery and employs an additional thermoelectric cooler to assist the thermoelectric generator or to create a self-powered thermoelectric cooling system.…”

Section: Introductionmentioning

confidence: 99%

Estimating the Impact of a Recuperative Approach on the Efficiency of Thermoelectric Cooling

Jurķāns,

Blūms

2024

Sustainability

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Thermoelectric cooling is a prospective technology that has a lot of advantages; however, its main drawback is its low efficiency compared to other technologies. A lot of scientific research is aimed at the improvement of the efficiency of thermoelectric cooling, including the development of new thermoelectric materials, innovative structures, and better power management strategies. The present work further explores a self-developed recuperative power management approach, which takes advantage of the thermoelectric element’s ability to work as an electrical generator. This study relied on the thermal–electrical analogy method to develop a model that is capable of describing the impact of recuperation on the cooling performance while preserving the simplest configuration possible. The influence of different variables was estimated by three suggested quantities for evaluating the gains, losses, and rationality of the recuperative approach. A recovery of up to 10% of the electrical energy supplied to the thermoelectric element was observed experimentally. The ratio between the recovered energy and induced heat losses did not exceed a factor of 0.9. It is concluded that the recuperation process is reasonable only in the case of unavoidable interruption of the cooling process when average-performance thermoelectric elements are used.

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Section: Introductionmentioning

confidence: 99%

Estimating the Impact of a Recuperative Approach on the Efficiency of Thermoelectric Cooling

Jurķāns,

Blūms

2024

Sustainability

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“…The application of the Seebeck effect in strategic industries [ 8 , 9 ] is also of high importance for development, including that of space areas. One of the leading directions in the development of materials for TEC is skutterudites [ 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Development and Testing of the Thermoelectric Thermal Energy Conversion Device in the Conditions of Existing Aluminum Production

Kondratiev

Sysoev²,

Kolosov³

et al. 2022

Materials

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The aim of the work is to develop an energy-saving device that provides the conversion of thermal energy into electrical energy. The design and materials of the thermoelectric converter unit, consisting of 12 thermoelectric converter modules, a cooling radiator and a switching unit, were developed and selected. Based on the test results, the zone of the maximum temperatures in the section of the gas duct recommended for the installation of a gas cooling module using a thermoelectric converter was determined. The technology for cooling gases with the help of a thermoelectric converter was tested on the site located in front of the experimental heat exchanger. An assessment of the efficiency of the conversion of heat into electrical energy was conducted using the design of the thermoelectric converter unit, based on thermoelectric modules TGM 127-1.4-1.2. It was determined that the device is capable of generating electricity stably for production needs. The data obtained showed that, at a temperature difference of 75–80 °C between the wall surface of the gas duct section and the coolant, the power of one thermoelectric converter block of the gas cooling system reaches 9 W.

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“…Consequently, the harvested energy from the TEG can be produced depending on the applied temperature difference within both sides-the hot and cold-of the TEG, as well as the load [5,30]. Based on the principle of MPP theory, the MPP of the TEG system will be obtained in the case where the load value equals the TEG internal resistance value [31,32]. In view of this, it is crucial to implement a robust MPP tracking system (MPPTS) to force the TEG to work at the MPP at all times during the operation.…”

Section: Introductionmentioning

confidence: 99%

Robust Fractional MPPT-Based Moth-Flame Optimization Algorithm for Thermoelectric Generation Applications

et al. 2022

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Depending on the temperature difference between the hot and cold sides of the thermoelectric generator (TEG), the output performance of the TEG can be produced. This means that it is necessary to force a TEG based on robust maximum power point tracking (MPPT) to operate close to its MPP at any given temperature or load. In this paper, an improved fractional MPPT (IFMPPT) is proposed in order to increase the amount of energy that can be harvested from TEGs. According to the suggested method, fractional order control is used. A moth-flame optimizer (MFO) was used to determine IFMPPT’s optimal parameters. A comparison of the results obtained by the MFO is made with those obtained by a particle swarm optimizer, genetic algorithm, gray wolf optimizer, seagull optimization algorithm, and tunicate swarm algorithm in order to demonstrate MFO’s superiority. IFMPPT’s primary objective is to enhance dynamic responses and exclude steady-state oscillations. Consequently, incremental resistance and perturb and observe are compared with the proposed strategy’s performance. It was revealed that IFMPPT provides superior tracking results both in dynamic and steady-state conditions when compared with traditional methods.

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Performance of Thermoelectric Power-Generation System for Sufficient Recovery and Reuse of Heat Accumulated at Cold Side of TEG with Water-Cooling Energy Exchange Circuit

Cited by 16 publications

References 22 publications

Estimating the Impact of a Recuperative Approach on the Efficiency of Thermoelectric Cooling

Estimating the Impact of a Recuperative Approach on the Efficiency of Thermoelectric Cooling

Development and Testing of the Thermoelectric Thermal Energy Conversion Device in the Conditions of Existing Aluminum Production

Robust Fractional MPPT-Based Moth-Flame Optimization Algorithm for Thermoelectric Generation Applications

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