TY - JOUR
T1 - Non-steady experimental investigation on an integrated thermal management system for power battery with phase change materials
AU - Shi, S
AU - Xie, Y
AU - Li, M
AU - Yuan, Y
AU - Yu, Y
AU - Wu, Hongwei
AU - Liu, B
AU - Liu, N
N1 - This document is the Accepted Manuscript version of the following article: Shang Shi, Yongqi Xie, Ming Li, Yanping Yuan, Jianzu Yu, Hongwei Wu, Bin Liu, Nan Liu, ‘Non-steady experimental investigation on an integrated thermal management system for power battery with phase change materials’, Energy Conversion and Management, Vol. 138, pp. 84-96, first published online 10 February 2017. Under embargo. Embargo end date: 10 February 2018.
This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
The version of record is available online at doi: http://dx.doi.org/10.1016/j.enconman.2017.01.069
© 2017 Elsevier Ltd. All rights reserved.
PY - 2017/4/15
Y1 - 2017/4/15
N2 - A large amount of heat inside the power battery must be dissipated to maintain the temperature in a safe range for the hybrid power train during high-current charging/discharging processes. In this article, a combined experimental and theoretical study has been conducted to investigate a newly designed thermal management system integrating phase change material with air cooling. An unsteady mathematical model was developed for the battery with the integrated thermal management system. Meanwhile, the heat generation power, thermal resistance, and time constant were calculated. The effect of several control parameters, such as thermal resistance, initial temperature, melting temperature and ambient temperature, on the performance of the integrated thermal management system were analyzed. The results indicated that: (1) the calculated temperature rise of the battery was in good agreement with the experimental data. The appropriate operation temperature of the battery was attained by the action of the phase change storage energy unit which is composed of copper foam and n-Eicosane, (2) the remarkable decrease of the battery temperature can be achieved by reducing the convection thermal resistance or increasing the conductivity of the phase change storage energy unit, where the latter could be the better option due to no additional energy consumption. When convective resistance and thermal resistance between the battery surface and the phase change storage energy unit are less than 2.03 K/W and 1.85 K/W, respectively, the battery will not exceed the safety temperature under extreme condition, (3) the temperature rise declines with the decrease of the melting temperature or with the increase of the ambient temperature. It could be possible that the battery temperature exceeds the safety temperature for the high ambient temperature, (4) even if the phase change material is completely melted, the integrated thermal management system can still maintain the battery temperature within the safe range because of the air cooling.
AB - A large amount of heat inside the power battery must be dissipated to maintain the temperature in a safe range for the hybrid power train during high-current charging/discharging processes. In this article, a combined experimental and theoretical study has been conducted to investigate a newly designed thermal management system integrating phase change material with air cooling. An unsteady mathematical model was developed for the battery with the integrated thermal management system. Meanwhile, the heat generation power, thermal resistance, and time constant were calculated. The effect of several control parameters, such as thermal resistance, initial temperature, melting temperature and ambient temperature, on the performance of the integrated thermal management system were analyzed. The results indicated that: (1) the calculated temperature rise of the battery was in good agreement with the experimental data. The appropriate operation temperature of the battery was attained by the action of the phase change storage energy unit which is composed of copper foam and n-Eicosane, (2) the remarkable decrease of the battery temperature can be achieved by reducing the convection thermal resistance or increasing the conductivity of the phase change storage energy unit, where the latter could be the better option due to no additional energy consumption. When convective resistance and thermal resistance between the battery surface and the phase change storage energy unit are less than 2.03 K/W and 1.85 K/W, respectively, the battery will not exceed the safety temperature under extreme condition, (3) the temperature rise declines with the decrease of the melting temperature or with the increase of the ambient temperature. It could be possible that the battery temperature exceeds the safety temperature for the high ambient temperature, (4) even if the phase change material is completely melted, the integrated thermal management system can still maintain the battery temperature within the safe range because of the air cooling.
KW - integrated thermal management system
KW - power battery
KW - phase change material
KW - air cooling
KW - heat power
U2 - 10.1016/j.enconman.2017.01.069
DO - 10.1016/j.enconman.2017.01.069
M3 - Article
SN - 0196-8904
VL - 138
SP - 84
EP - 96
JO - Energy Conversion and Management
JF - Energy Conversion and Management
ER -