Analysis of relationship between the dynamics of a thermoelectric cooler and its design and modes of operation

Zaykov, Vladimir; Mescheryakov, Vladimir; Zhuravlov, Yurii

doi:10.15587/1729-4061.2018.123891

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…The result of this research was development of mathematical model of thermoelectric cooler [16], which quantitatively connects failure rate with design and energy indices. However, these developments were limited to static models and did not take into account dynamics issues relevant for thermal management systems [17,18]. In [19] the results of studies of inertia of a solidstate cooler and connection of reliability indicators with design and energy performance are given.…”

Section: Literature Reviewmentioning

confidence: 99%

Reliability control of a thermoelectric cooler with changes in ambient temperature

Zaykov¹,

Mescheryakov²,

Zhuravlov³

2023

HAIT

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The paper presents the development of method of thermoelectric system reliability indexes control for providing thermal modesof radio electronic equipment, based on thermoelectric coolers medium temperature variation. A mathematical model for investigating influence of the environment temperature variation on the reliability performance of a single-cascade thermoelectric cooler at a given temperature level of cooling, thermal load, geometry of thermoelement branches for different characteristiccurrent operating modes is considered. The results of calculations of the basic parameters, reliability indices, dynamic characteristicsand the analysis of dependences are given for revealing the peculiarities of control processes. It is shown that decreasing the medium temperature at a given chiller design decreases the operating current, increases the cold-productivity, and decreases the time of reaching a steady-state operating mode for various characteristic current operating modes. The time to steady-state operation decreases from the minimum failure rate to the maximum cooling capacity at a fixed medium temperature. The minimum steady-state operation time is ensured in maximum cooling capacity mode. Reduction of such significant for control indices as the amountof consumed energy for different characteristic current operation modes, required heat dissipation capacity of the radiator, time of reaching the steady-state mode is noted. Analysis of research results has shown that it is possible to control indicators of reliability of a single-stage cooler of a given design by changing the medium temperature by changing the value of operating current. A change in the medium temperature of the thermoelectric cooler due to an external supporting device makes it possible to vary the reliability indices and to find a compromise between the reliability, dynamics and cooling capacity of the thermal mode support system.

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Section: Literature Reviewmentioning

confidence: 99%

Reliability control of a thermoelectric cooler with changes in ambient temperature

Zaykov¹,

Mescheryakov²,

Zhuravlov³

2023

HAIT

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“…The need to use a pulse mode as a working one in the systems of maintaining operational conditions for heat-loaded elements suggests that research is needed on the ability to manage the dynamic characteristics of thermoelectric coolers [11]. An analysis of the relationship between the dynamics and reliability indicators of the cooler and its structure and modes of operation is given in [12]. A study [13] was carried out into the time it takes to enter a stationary mode, taking into consideration the influence of mass and technological elements in a single-cascade thermoelectric device.…”

Section: одержано аналIтичний зв'язок часу виходу термоелектричного оmentioning

confidence: 99%

Designing a singlecascade thermoelectric cooler with the predefined time to enter a stationary mode of operation

Zaykov¹,

Mescheryakov²,

Zhuravlov³

2019

EEJET

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“…In accordance with [9], the time for entering a stationary operation mode τ can be determined from the expression ( )…”

Section: Development Of the Model Of Relationship Between The Mean Vomentioning

confidence: 99%

Influence of the mean volumetric temperature of a thermoelement on reliability indicators and the dynamics of a cooler

Zaykov¹,

Mescheryakov

Zhuravlov

2019

EEJET

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Розглянуто вплив середньооб'ємної температури гiлки термоелементу на основнi параметри, показники надiйностi i динамiку функцiонування термоелектричного охолоджувача при рiзних перепадах температури при заданому тепловому навантаженнi, геометрiї гiлок термоелементiв для характерних струмових режимiв роботи. Показано, що середня температура термоелементу, яка є опорною точкою при розрахунку енергетичних показникiв термоелектричного охолоджувача, може бути використана тiльки для розрахункiв в стацiонарному режимi роботи. Використання її в динамiчному режимi призводить до значних похибок. Обґрунтовано, що для динамiчного режиму такою опорною точкою може служити середньооб'ємна температура термоелектричної гiлки. Визначено спiввiдношення для оцiнки среднеоб'ємної температури в залежностi вiд вiдносного робочого струму. Проаналiзовано зв'язки среднеоб'ємної температури термоелемента, часу виходу на стацiонарний режим, необхiдну кiлькiсть термоелементiв, вiдмiнностi мiж среднеоб'ємної i середньою температурою, холодильного коефiцiєнта в залежностi вiд вiдносного робочого струму. Показано, що з ростом среднеоб'ємної температури при заданому струмовому режимi роботи i перепадi температури, що перевищує 40 K, величина робочого струму, кiлькiсть термоелементiв, потужнiсть споживання, iнтенсивнiсть вiдмов i постiйна часу зменшується, а холодильний коефiцiєнт зростає. Час виходу на стацiонарний режим при переходi вiд режиму мiнiмуму iнтенсивностi вiдмов в режим максимальної холодопродуктивностi, знижується на 5 %, а iнтенсивнiсть вiдмов зростає на 16 %. Практична значимiсть проведених дослiджень полягає як у пiдвищеннi якостi проектування охолоджувачiв, так i виборi необхiдних режимiв термоелектричної системи забезпечення теплових режимiв електронної апаратури в залежностi вiд значимостi динамiчних або критерiїв управлiння по надiйностiКлючовi слова: гiлка термоелементi, середньооб'ємна температура, показники надiйностi, динамiка охолоджувача UDC 621.362.192

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Analysis of relationship between the dynamics of a thermoelectric cooler and its design and modes of operation

Cited by 6 publications

References 6 publications

Reliability control of a thermoelectric cooler with changes in ambient temperature

Reliability control of a thermoelectric cooler with changes in ambient temperature

Designing a singlecascade thermoelectric cooler with the predefined time to enter a stationary mode of operation

Influence of the mean volumetric temperature of a thermoelement on reliability indicators and the dynamics of a cooler

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Analysis of relationship between the dynamics of a thermoelectric cooler and its design and modes of operation

Cited by 6 publications

References 6 publications

Reliability control of a thermoelectric cooler with changes in ambient temperature

Reliability control of a thermoelectric cooler with changes in ambient temperature

Designing a single­cascade thermoelectric cooler with the predefined time to enter a stationary mode of operation

Influence of the mean volumetric temperature of a thermoelement on reliability indicators and the dynamics of a cooler

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Designing a singlecascade thermoelectric cooler with the predefined time to enter a stationary mode of operation