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

Zaykov, Vladimir; Mescheryakov, Vladimir; Zhuravlov, Yurii

doi:10.15587/1729-4061.2019.184400

Cited by 4 publications

(5 citation statements)

References 14 publications

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“…where t =10 4 h is the assigned resource. The formula for determining the time of steadystate operation can be presented in the form [19]:…”

Section: Development Of a Thermoelectric Cooler Modelmentioning

confidence: 99%

“…In [17,18], the results of investigation of the relationship between the dynamics of a thermoelectric cooler and reliability indices at variation of geometry of thermoelements and modes of operation are presented. In [19] the task of reducing the inertia of the cooler and its dependence on the design and loading characteristics is considered. In [20] the possibilities of controlling the operating modes of the cooler by complex indices are presented.…”

Section: Introductionmentioning

confidence: 99%

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Method of reliability control of thermoelectric systems to ensure thermal regimes

Zaykov,

Mescheryakov,

Ustenko

2024

HAIT

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The paper presents the results of research of controllability of the thermoelectric system for ensuring thermal modes of electronic equipment, including a regulator, a cooler, and a component of excess heat removal to the environment. It is shown that for the use of methods of optimization of automatic control systems it is necessary to study the transfer and dynamic characteristics of the object - thermoelectric cooling device with one input and one output. The mathematical model of the thermoelectric cooler of the system of providing thermal modes of a given design is presented, which takes into account the influence of the conditions of interaction of the heat sink with the medium on the main significant parameters, reliability indicators, dynamic and energy characteristics of the single stage cooler. The model is created for the operating range of cooling, level of thermal load, geometry of thermocouple branches, different temperature of the medium, for the characteristic thermal regime of maximum cooling capacity. The results of calculations of the main significant parameters, reliability indicators, dynamic and energy characteristics of the cooler for different medium temperature in the operating temperature range and variation of conditions of heat exchange of the heat sink with the medium are given. It is shown that as the intensity of heat exchange of the heat sink with the medium increases, the temperature difference between the heat sink and the medium decreases. This makes it possible to significantly reduce the relative failure rate, increase the probability of failure-free operation of the thermoelectric cooler and control the reliability indicators of the device of a given design during operation.

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“…where t =10 4 h is the assigned resource. The formula for determining the time of steadystate operation can be presented in the form [19]:…”

Section: Development Of a Thermoelectric Cooler Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Method of reliability control of thermoelectric systems to ensure thermal regimes

Zaykov,

Mescheryakov,

Ustenko

2024

HAIT

View full text Add to dashboard Cite

show abstract

“…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. However, control issues related to the use of thermoelectric coolers in the feedback circuit have not been discussed.…”

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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“…The importance of the task of including TEC in the control circuit has led to a series of works related to the study of the relationship of dynamic characteristics and reliability indicators with the design [14], the number of thermocouples [15], current operating modes [16]. In works [17,18] possibilities of optimization of reliability and dynamics indices of fuel injection equipment by complex criteria including these indices are substantiated. At the same time, the conducted researches concern the use of single TEC for thermal mode support systems.…”

Section: Literary Reviewmentioning

confidence: 99%

Control of a thermoelectric cooling unit complex mixed electrical connection in an uneven temperature field

Zaykov¹,

Mescheryakov²,

Zhuravlov³

2022

HAIT

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A possibility of optimal thermal management of a number of temperature-dependent and heat-laden elements of radio electronic equipment with different power dissipation in an uneven temperature field using a set of thermoelectric cooling devices with mixed electrical connection and fixed geometry of thermocouple branches has been considered. Ratios for determining the relative operating current corresponding to the minimum supply voltage at a given thermal load for different temperature gradients and thermocouple branch geometries are derived. The possibility of selecting a supply voltage for a group of thermoelectric coolers with parallel electric connection using both analytical and graphical methods of solving a system of algebraic equations of first and second orders is shown. The basic parameters, reliability indices and dynamic characteristics of a thermoelectric cooler complex with mixed electrical connection when a group of thermoelectric coolers with series electrical connection operates at maximum cooling capacity and supply voltage variation of a group of coolers with parallel electrical connection are evaluated. Analysis of the research results showed the possibility of selecting the optimum supply voltage for a group of thermoelectric coolers with parallel electric connection in the interrelation of energy, mass-dimensional and dynamic characteristics, taking into account the reliability indicators of the complex as a whole. It is shown that by reducing the supply voltage of a group of thermoelectric coolers with parallel electric connection included in the complex, the energy, mass-size and dynamic characteristics are improved, and the reliability of the complex with mixed electric connection in an uneven temperature field is increased.

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

Cited by 4 publications

References 14 publications

Method of reliability control of thermoelectric systems to ensure thermal regimes

Method of reliability control of thermoelectric systems to ensure thermal regimes

Reliability control of a thermoelectric cooler with changes in ambient temperature

Control of a thermoelectric cooling unit complex mixed electrical connection in an uneven temperature field

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

Cited by 4 publications

References 14 publications

Method of reliability control of thermoelectric systems to ensure thermal regimes

Method of reliability control of thermoelectric systems to ensure thermal regimes

Reliability control of a thermoelectric cooler with changes in ambient temperature

Control of a thermoelectric cooling unit complex mixed electrical connection in an uneven temperature field

Contact Info

Product

Resources

About

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