Heat Exchanger for Air-Liquid Application with Chaotised Polymeric Hollow Fibres

Kroulíková, Tereza; Astrouski, Ilya; Raudenský, Miroslav; Kůdelová, Tereza

doi:10.1016/j.applthermaleng.2021.117365

Cited by 4 publications

(1 citation statement)

References 26 publications

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“…Over the last century, polymer materials have been used extensively in the industrial world. They are well known as thermal insulators, but despite their low thermal conductivity, they have found their way into thermal management applications such as heat exchangers [6][7][8][9]. By combining polymers with different fillers, they can not only counter conventional materials in their respective fields, but even successfully replace them.…”

Section: Introductionmentioning

confidence: 99%

Numerical Computation of Anisotropic Thermal Conductivity in Injection Molded Polymer Heat Sink Filled with Graphite Flakes

et al. 2022

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The use of polymer composites as a replacement for commonly applied materials in industry has been on the rise in recent decades. Along with the development of computer software, the desire to predict the behavior of new products is thus increasing. Traditional additives in the form of fibers cause anisotropic properties of the whole product. The subject of the presented study is a polymer heat sink prototype with a thermally conductive filler in the form of graphite flakes, which differs from the commonly used fibers. Three simplified approaches are introduced to model the thermal conductivity anisotropy of an entire heat sink. Each model is subjected to an inverse heat conduction problem, the output of which are thermal conductivity values. These are optimized to minimize the difference between simulated and experimental temperatures at selected locations in the model. The approaches are compared with each other with respect to their error against the experimentally obtained results. The goal is to find a sufficiently simplified approach that can be applied to products of various geometries. This would remove the costly and time-consuming need for mold production and experimental testing.

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Section: Introductionmentioning

confidence: 99%

Numerical Computation of Anisotropic Thermal Conductivity in Injection Molded Polymer Heat Sink Filled with Graphite Flakes

et al. 2022

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Experimental determination of the heat transfer coefficients of shell-and-tube heat exchangers with different hollow fiber arrangements

Strunga

Kroulíková

Bartuli

et al. 2022

J Therm Anal Calorim

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Case study on thermal management of planar elements with various polymeric heat exchangers: experiment and simulation

Hvozda,

Mraz,

Raudensky

et al. 2024

J Therm Anal Calorim

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A reliable battery thermal management system (BTMS) is essential to ensure proper performance, a long life span and high electric vehicle safety. The primary objective of BTMS is to maintain the cells’ temperature in the range of 15–35 °C while limiting the temperature spread between cells to below 5 °C. Active thermal management with polymeric hollow fibers (PHFs) has been reported in a few articles, but its tremendous flexibility is mainly advantageous for cylindrical cells. Extruded polymeric cold plate heat exchangers with rounded rectangle channels (RRCs) are proposed as a more elegant solution for planar batteries. Heat exchangers using PHFs and RRCs were experimentally compared, with a strong focus on minimizing the maximum temperature and temperature spread of the experimental setup while simultaneously achieving minimal pressure drops. The system behavior with different parameters, including materials, geometry and thermophysical properties, was further studied using properly validated CFD models.

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Heat Exchanger for Air-Liquid Application with Chaotised Polymeric Hollow Fibres

Cited by 4 publications

References 26 publications

Numerical Computation of Anisotropic Thermal Conductivity in Injection Molded Polymer Heat Sink Filled with Graphite Flakes

Numerical Computation of Anisotropic Thermal Conductivity in Injection Molded Polymer Heat Sink Filled with Graphite Flakes

Experimental determination of the heat transfer coefficients of shell-and-tube heat exchangers with different hollow fiber arrangements

Case study on thermal management of planar elements with various polymeric heat exchangers: experiment and simulation

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