TY - JOUR

T1 - Case study on thermal management of planar elements with various polymeric heat exchangers: experiment and simulation

AU - Hvozda, Jiri

AU - Mraz, Krystof

AU - Raudensky, Miroslav

AU - Vakhrushev, Alexander

AU - Karimi Sibaki, Ebrahim

AU - Bohacek, Jan

PY - 2024/5/2

Y1 - 2024/5/2

N2 - A reliable battery thermal management system (BTMS) is essential to ensure proper performance, a long life span andhigh electric vehicle safety. The primary objective of BTMS is to maintain the cells’ temperature in the range of 15–35 °Cwhile limiting the temperature spread between cells to below 5 °C. Active thermal management with polymeric hollow fib-ers (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 elegantsolution for planar batteries. Heat exchangers using PHFs and RRCs were experimentally compared, with a strong focus onminimizing the maximum temperature and temperature spread of the experimental setup while simultaneously achievingminimal pressure drops. The system behavior with different parameters, including materials, geometry and thermophysicalproperties, was further studied using properly validated CFD models.

AB - A reliable battery thermal management system (BTMS) is essential to ensure proper performance, a long life span andhigh electric vehicle safety. The primary objective of BTMS is to maintain the cells’ temperature in the range of 15–35 °Cwhile limiting the temperature spread between cells to below 5 °C. Active thermal management with polymeric hollow fib-ers (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 elegantsolution for planar batteries. Heat exchangers using PHFs and RRCs were experimentally compared, with a strong focus onminimizing the maximum temperature and temperature spread of the experimental setup while simultaneously achievingminimal pressure drops. The system behavior with different parameters, including materials, geometry and thermophysicalproperties, was further studied using properly validated CFD models.

KW - Battery thermal management systems

KW - Heat exchangers

KW - Planar batteries

KW - Polymeric cold plates

KW - olymeric hollow fibers

U2 - 10.1007/s10973-024-13172-x

DO - 10.1007/s10973-024-13172-x

M3 - Article

VL - 149.2024

SP - 5229

EP - 5238

JO - Journal of Thermal Analysis and Calorimetry

JF - Journal of Thermal Analysis and Calorimetry

SN - 1418-2874

IS - June

ER -