No default citation style available for Eprints
|
Pdf
J 2024 Frontier LuHK M.M.Noor Exp Hybrid BTMS RDU240117.pdf Available under License Creative Commons Attribution. Download (2MB) | Preview |
Abstract
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 liquidBTMSusingwater coolant at 280W, the hybridBTMS 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°C to 47.9°C, 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.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Battery thermal management system; oscillating heat pipe; liquid cooling; hybrid BTMS; graphene nanofluid |
| Subjects: | T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Institute of Postgraduate Studies Faculty of Mechanical and Automotive Engineering Technology |
| Depositing User: | PM Ts. Dr. Muhamad Mat Noor |
| Date Deposited: | 10 Jan 2025 00:53 |
| Last Modified: | 13 May 2025 04:59 |
| URI: | http://umpir.ump.edu.my/id/eprint/43492 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |