Numerical Study on Heat Transfer Characteristics of Corrugated Tube Phase Change Thermal Energy Storage Unit

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.

Heat Transfer Performance Through Obstacles Tube Based on Sc- Co2

“…Also, eddy blockage gets worst and therefore leading to the degrading the heat transfer process at the top horizontal pipe by 17%. Similar outcomes were acheived related to the heat storage unit with (Ida et al,2022, Kun et al,2022, Hai et al,2019Scott Hai et al,2022, andWenlei et al,2020).…”

Investigation and Optimization of a Thermal Management System for Lithium-Ion Batteries Combining Closed Air-Cooling With Phase Change Material

“…To reduce the temperature difference between batteries, phase change materials (PCM) are used for battery thermal management because PCM will maintain a small temperature range during phase transition (Mohammed et al, 2022;Zhang et al, 2022). Jilte et al (2021) studied the heat dissipation of batteries with enhanced PCM in different arrangement modes by means of simulation, the results showed that the 7*7*1 arrangement was more efficient than the 7*1*1 arrangement.…”