Experimental Study on a Hybrid Battery Thermal Management System Combining Oscillating Heat Pipe and Liquid Cooling  

作　　者：Hongkun Lu M.M.Noor K.Kadirgama 

机构地区：[1]School of Automotive Engineering,Jiangxi Polytechnic University,Jiujiang,332000,China [2]Faculty of Mechanical and Automotive Engineering Technology,Universiti Malaysia Pahang Al-Sultan Abdul-lah,Pekan,26600,Malaysia [3]Centre for Research in Advanced Fluid&Processes,Universiti Malaysia Pahang Al-Sultan Abdul-lah,Pekan,26600,Malaysia [4]Institute of Sustainable and Renewable Energy(ISuRE),Universiti Malaysia Sarawak(UNIMAS),Kota Samarahan,94300,Malaysia

出　　处：《Frontiers in Heat and Mass Transfer》2025年第1期299-324,共26页热量和质量传递前沿(英文)

基　　金：funded by the Science and Technology Research Project of Jiangxi Provincial Department of Education(GJJ2404911);the Ministry of Higher Education,Malaysia through the Fundamental Research Grant Scheme:FRGS/1/2024/TK10/UMP/02/15 and Universiti Malaysia Pahang Al-Sultan Abdullah(RDU240117).

摘　　要：To improve the thermal performance and temperature uniformity of battery pack,this paper presents a novel battery thermal management system(BTMS)that integrates oscillating heat pipe(OHP)technology with liquid cooling.The primary innovation of the new hybrid BTMS lies in the use of an OHP with vertically arranged evaporator and condenser,enabling dual heat transfer pathways through liquid cooling plate and OHP.This study experimentally investigates the performance characteristics of the⊥-shaped OHP and hybrid BTMS.Results show that lower filling ratios significantly enhance the OHP’s startup performance but reduce operational stability,with optimal performance achieved at a 26.1%filling ratio.Acetone,as a single working fluid,exhibited superior heat transfer performance under low-load conditions compared to mixed fluids,while the acetone/ethanol mixture,forming a non-azeotropic solution,minimized temperature fluctuations.At 100 W,the⊥-shaped OHP with a horizontally arranged evaporator demonstrated better heat transfer performance than 2D-OHP designs.Compared to a liquid BTMS using water coolant at 280 W,the hybrid BTMS reduced the equivalent thermal resistance(RBTMS)and maximum temperature difference(ΔTmax)by 8.06%and 19.1%,respectively.When graphene nanofluid was used as the coolant in hybrid BTMS,the battery pack’s average temperature(Tb)dropped from 52.2℃ to 47.9℃,with RBTMS andΔTmax decreasing by 20.1%and 32.7%,respectively.These findings underscore the hybrid BTMS’s suitability for high heat load applications,offering a promising solution for electric vehicle thermal management.

关 键 词：Battery thermal management system oscillating heat pipe liquid cooling hybrid BTMS graphene nanofluid 

分 类 号：TG1[金属学及工艺—金属学]