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Modeling of the Electrical and Thermal Behaviors of an Ultracapacitor

Authors :
Jeongbin Lee
Jaeshin Yi
Daeyong Kim
Chee Burm Shin
Kyung-Seok Min
Jongrak Choi
Ha-Young Lee
Source :
Energies, Vol 7, Iss 12, Pp 8264-8278 (2014)
Publication Year :
2014
Publisher :
MDPI AG, 2014.

Abstract

This paper reports a modeling methodology to predict the electrical and thermal behaviors of a 2.7 V/650 F ultracapacitor (UC) cell from LS Mtron Ltd. (Anyang, Korea). The UC cell is subject to the charge/discharge cycling with constant-current between 1.35 V and 2.7 V. The charge/discharge current values examined are 50, 100, 150, and 200 A. A three resistor-capacitor (RC) parallel branch model is employed to calculate the electrical behavior of the UC. The modeling results for the variations of the UC cell voltage as a function of time for various charge/discharge currents are in good agreement with the experimental measurements. A three-dimensional thermal model is presented to predict the thermal behavior of the UC. Both of the irreversible and reversible heat generations inside the UC cell are considered. The validation of the three-dimensional thermal model is provided through the comparison of the modeling results with the experimental infrared (IR) image at various charge/discharge currents. A zero-dimensional thermal model is proposed to reduce the significant computational burden required for the three-dimensional thermal model. The zero-dimensional thermal model appears to generate the numerical results accurate enough to resolve the thermal management issues related to the UC for automotive applications without relying on significant computing resources.

Details

Language :
English
ISSN :
19961073
Volume :
7
Issue :
12
Database :
Directory of Open Access Journals
Journal :
Energies
Publication Type :
Academic Journal
Accession number :
edsdoj.1f38a7de27e4a7b8deb31415982b696
Document Type :
article
Full Text :
https://doi.org/10.3390/en7128264