Cooling Performance Investigation of Commercially Available Paraffin and Nanographene Enhanced Paraffin as Working Material in Thermal Management
Year: 2026
Type: article
Abstract: Lithium-Ion batteries, when subjected to high discharge rates (C rate), exhibit elevated temperatures. When the temperature crosses the 323 K threshold, thermal runaway occurs, leading to fire and sometimes an explosion. To prevent this, the Battery Thermal Management System (BTMS) is employed. The current study investigates the cooling performance of mass-produced paraffin and Graphene-based (in 1,3, and 5 wt% concentrations) experimentally synthesized Nano-enhanced Phase Change Material (NePCM). Characterization of NePCM indicated elevated thermal conductivity by 23.32, 53.22, and 66.95% and density by 3.75, 6.5, and 13.5% but decreased latent heat by 3.17, 4.20, and 11.37% and specific heat by 4.30%, 4.93%, and 7.16% for each NePCM sample, respectively. Paraffin and NePCM were numerically computed in Li-Ion cell BTMS discharged at 3C. The results indicated the successful cooling performance of PCM with temperature reduction of 11.69, 11.78, 12.23, and 12.38% concerning Bare Cell temperature, respectively. Cost analysis conducted with similar studies involving specialized Phase Change Material (PCMs) showed that the present BTMS was, at maximum, 63.23% less costly.
DOI: 10.4028/p-17yage
Authors: Jvalant Trivedi, Mitesh Shah, Aditya Bais
Institution: The Charutar Vidya Mandal (CVM) University
Language: English
Subfield: Automotive Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7203873382