Open Access
ARTICLE
NUMERICAL STUDY ON HEAT TRANSFER CHARACTERISTICS OF CORRUGATED TUBE PHASE CHANGE THERMAL ENERGY STORAGE UNIT
Kun Zhanga,b,*
, Zhiyong Lia,b, Jia Yaoa,b
a School of Mechanical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
b Key Laboratory of Railway Vehicle Thermal Engineering of MOE, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
* Corresponding author. Email: zhangkun52015@163.com
Frontiers in Heat and Mass Transfer 2022, 19, 1-8. https://doi.org/10.5098/hmt.19.5
Abstract
Detailed numerical analysis is presented for heat transfer characteristics of charging or discharging process in phase change thermal energy storage
unit with inner corrugated tube. The results indicated that the charging or discharging rate of phase change material (PCM) for the case of inner
corrugated tube is obviously higher than that in unit with inner plain tube due to the increasing heat transfer surface. The heat transfer rate increase
with the increasing mass flow rate. However, when the mass flow rate of heat transfer fluid (HTF) is greater than 0.0315kg/s, the charge and
discharge time can not be obviously shorten by increasing mass flow rate. The heat transfer rate between PCM and HTF increases with the increasing
of wave amplitude and the decreasing of wavelength.
Keywords
Cite This Article
Zhang, K., Yao, J. (2022). NUMERICAL STUDY ON HEAT TRANSFER CHARACTERISTICS OF CORRUGATED TUBE PHASE CHANGE THERMAL ENERGY STORAGE UNIT.
Frontiers in Heat and Mass Transfer, 19(1), 1–8. https://doi.org/10.5098/hmt.19.5