Numerical study of transient supercooling performance and thermal stress analysis of segmented annular thermoelectric cooler

Applied Thermal Engineering, Год журнала: 2024, Номер 245, С. 122804 - 122804

Опубликована: Фев. 28, 2024

Язык: Английский

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Personalized ventilation with embedded air treatment system for simultaneous cooling and sorption-based carbon and humidity capture

Energy Conversion and Management, Год журнала: 2023, Номер 291, С. 117290 - 117290

Опубликована: Июнь 15, 2023

Язык: Английский

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Design and decoupling analysis of Thermal–Electric energy comprehensive utilization scheme based on “diamond” active cooling thermal protection system for hypersonic vehicle

Energy, Год журнала: 2024, Номер 294, С. 130906 - 130906

Опубликована: Март 6, 2024

Язык: Английский

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The Impact of Asymmetric Contact Resistance on the Operating Parameters of Thermoelectric Systems

Energies, Год журнала: 2024, Номер 17(3), С. 599 - 599

Опубликована: Янв. 26, 2024

This paper presents a simulation model for system equipped with thermoelectric elements, considering the impact of independent thermal contact resistances on each side module. An analytical was constructed, taking into account asymmetry between generator/cooler and respective heat source/heat sink. A comparative analysis device operating indicators such as conducted heat, efficiency, electricity/cooling power produced performed. The selection electrical current in circuit analysed based maximization or efficiency. discusses deviations from ideal conditions, specifically absence resistance source/sink junction. accurately simulates conditions low computational cost. results indicate that total resistance, rather than its location, predominantly affects operation generator. However, cooling operations, influence significantly depends demand temperature.

Язык: Английский

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Maximizing energy harvesting in grid‐connected hybrid photovoltaic and thermoelectric generator systems: An adaptive global power tracking technique

Environmental Progress & Sustainable Energy, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract This paper proposes an innovative strategy to optimize the integration of thermoelectric generator (TEG) and photovoltaic (PV) technologies into a hybrid system linked three‐phase grid, aiming enhance renewable energy harvesting raise overall efficiency. An adaptive overstepping tracking algorithm is presented meet requirements PV‐TEG systems for grid‐connected applications, combining advantages conventional perturb observe techniques with modified trapezoidal rule based technique. The validations were conducted under wide range weather fluctuations, including varying irradiance, temperature gradients, complex partial shading levels, dynamic sun irradiation. results simulation show that proposed method performs better than some most widely used metaheuristic approaches, exhibiting notable gains in yield over 99.7% efficiency response time less 10 ms, reducing steady‐state error (SSE) 0.2%. Experimentally, technique has been put practice evaluated variety additional scenarios using solar simulator microcontroller (TMS320F28335) as main part implemented setup. In all tests carried out, reliable stable 99% was approved. findings demonstrate MPPT can significantly stability systems, paving way more robust high‐performing solutions.

Язык: Английский

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Experiment-Validated multiphysics modeling, generalizable deep learning and interpretable global sensitivity analyses for thermoelectric generators

International Journal of Heat and Mass Transfer, Год журнала: 2024, Номер 229, С. 125711 - 125711

Опубликована: Май 22, 2024

Язык: Английский

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Transient real-weather 4E optimization of two-stage segmented thermoelectric generators for enhanced solar energy conversion

Applied Energy, Год журнала: 2024, Номер 373, С. 123881 - 123881

Опубликована: Июль 17, 2024

Язык: Английский

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Optimization of cooling process under varied pulsed conditions in multi-stage thermoelectric systems

Applied Thermal Engineering, Год журнала: 2024, Номер unknown, С. 124526 - 124526

Опубликована: Окт. 1, 2024

Язык: Английский

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Supercooling behaviours of thermoelectric coolers with different continuous Double-pulse current waveforms

Applied Thermal Engineering, Год журнала: 2023, Номер 230, С. 120766 - 120766

Опубликована: Май 13, 2023

Язык: Английский

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Analysis of nanofluid and nano-enhanced phase change material (NEPCM) in a heat exchanger for thermal management of electronic devices

Numerical Heat Transfer Part A Applications, Год журнала: 2024, Номер unknown, С. 1 - 25

Опубликована: Июль 1, 2024

Thermal management of high-power electronic devices is essential to control their enormous heat generation, which usually the cause damage. Scientists have found several solutions for cooling devices, but a counter-current exchanger has never been used. In same context, numerical research on thermal performance proposed new system based counterflow combined with sink conducted in this article. Cu-H2O nanofluid, n-Docosane nano-enhanced phase change material, and water were selected as coolants, they are compared terms temperatures, Nusselt number, transfer coefficient, pressure drop, friction factor, enhancement coefficient using two-phase mixture transient model Finite Volume method. Two cases studied find optimal distance between pipes hot surface. Results previous experimental data demonstrate that under study accurate. They revealed integrating nf coolant maintained surface temperature below 308 K improved by 31.22% water. 0.25 mm optimum highest system.

Язык: Английский

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