Optimal pulse current shape for transient supercooling of thermoelectric cooler

Lv, Hao; Wang, Xiaodong; Wang, Tianhu; Meng, Jinghui

doi:10.1016/j.energy.2015.02.092

Cited by 42 publications

(10 citation statements)

References 35 publications

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“…If the time term in Formula (1) is 0, the steady state heat absorption can be obtained as follows: The governing equation of the integrated thermoelectric generation-cooling system is [18,19]:…”

Section: Theoretical Modelmentioning

confidence: 99%

Modeling of an Integrated Thermoelectric Generation–Cooling System for Thermoelectric Cooler Waste Heat Recovery

Zhu

Kong

et al. 2020

Energies

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This paper focuses on the problem of thermoelectric cooler waste heat recovery and utilization, and proposes taking the waste heat together with the original heat source as the input heat source of the integrated thermoelectric generation–cooling system. By establishing an analytic model of this integrated thermoelectric generation–cooling system, the steady-state and transient thermal effects of this system are analyzed. The steady-state analysis results show that the thermoelectric generator’s actual heat source is about 20% larger than the intrinsic heat source. The transient analysis results prove that the current of thermoelectric power generation and the cold end temperature of the system show a nonlinear change rate with time. The cold end temperature of the system has a maximum value. Under different intrinsic heat sources, this maximum value can be reached between 1 s and 2.5 s.

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Section: Theoretical Modelmentioning

confidence: 99%

Modeling of an Integrated Thermoelectric Generation–Cooling System for Thermoelectric Cooler Waste Heat Recovery

Zhu

Kong

et al. 2020

Energies

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“…Використання наближених математичних моделей ПНТО дає змогу отримати результат, зокрема залежність ISSN 2226-3780 температури охолодження від часу, в аналітичній формі, як для випадку постійного струму [13], так і для окремих функцій, які задають залежність струму від часу, наприклад, для прямокутних або синусоїдальних імпульсів струму [16]. Але для розв'язування задач, пов'язаних з оптимізацією нестаціонарного процесу охолодження, навіть у випадку найпростіших математичних моделей, які описують процес, вже доводиться використовувати комп'ютерні методи [18][19][20][21][22][23].…”

Section: аналіз літературних даних та постановка проблемиunclassified

“…математична модель пнто. Огляд та аналіз наукових праць, які стосуються теоретичного опису нестаціонарного термоелектричного охолодження [5][6][7][8][9][10][13][14][15][16][17][18][19][20][21][22][23], приводять до висновку, що математична модель ПНТО повинна враховувати наступні важливі фізичні фактори:…”

Section: оптимізація нестаціонарного процесу термоелектричного охолодunclassified

Mathematical modeling and optimization of transiant thermoelectric cooling process

Kotsur¹

2016

TAPR

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“…Further improvements could be gained by modeling the Joule heat generated within the solder and copper as well as radiative and convective losses. 27 To produce a model that accurately reproduces the transient effect from experimental data with intrinsic properties, these items must be included and / or provided in the experimental technical paper that provides experimental data. To simplify reporting, sometimes, T h is measured and reported vs. time and then imposed on the model.…”

Section: T Rmentioning

confidence: 99%

“…19 Variables that affect pulsed Peltier cooling include: thermoelement length, 15 current pulse amplitude 15,19 pulse duration, 19 pulse shape, 14,16,19,[22][23][24][25][26][27] time between pulses, 28 thermoelectric figure of merit, 15 thermoelement thermal diffusivity 15 , thermoelement shape [29][30][31] and the number of stages of a multi-stage thermoelectric cooler. 32 Of these variables, there are only two that can be varied to change the operating conditions for any given pulse shape.…”

mentioning

confidence: 99%

Peltier Supercooling with Isosceles Current Pulses: A Response Surface Perspective

Piggott

Allen

2017

ECS J. Solid State Sci. Technol.

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Using a pulsed electrical current enables a temporary state in which a Peltier element achieves temperatures below that obtained with a steady current. This is referred to as supercooling. Supercooling is followed by a period of superheating during which Peltier heat transfer is diminished and the surface temperatures increases. Most studies have found that the duration of superheating is longer than the duration of supercooling. As a result, the current pulse generates a net heating instead of enhanced cooling. There are limited studies that have shown the possibility of net cooling during a current pulse. The objective of this paper is to discuss the operating conditions for which net cooling is possible and maximized. The interaction between pulse duration and pulse height using isosceles shaped current pulses on net cooling was investigated using response surfaces generated using electrical-thermal analogies in SPICE. Pulse duration ranged from 0.1 to 10.0 seconds and pulse height ranging from 1.01 to 6.0 times steady current. Response surfaces were used to map a variety of performance factors; including the transient time to achieve a minimum temperature, the pulse cooling enhancement, transient penalty and transient advantage. The optimal combination of pulse duration and pulse height was identified.

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Optimal pulse current shape for transient supercooling of thermoelectric cooler

Cited by 42 publications

References 35 publications

Modeling of an Integrated Thermoelectric Generation–Cooling System for Thermoelectric Cooler Waste Heat Recovery

Modeling of an Integrated Thermoelectric Generation–Cooling System for Thermoelectric Cooler Waste Heat Recovery

Mathematical modeling and optimization of transiant thermoelectric cooling process

Peltier Supercooling with Isosceles Current Pulses: A Response Surface Perspective

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