This paper investigates the heat transfer response of the concrete pile foundation subjected to temperature changes from the compressed air for the renewable energy storage purpose. The non-steady state heat transfer analysis was conducted using the 2D plane strain model with different thermal properties for concrete and pile section geometries
The analysis results show that the group pile effect significantly increases the temperature up to more than 100 °C depending on the location and changes its distribution in both concrete and soil due to the heat transferred from the adjacent piles.
The experimental data shows that the initial minimum temperature of the battery is 39.5 °C; the maximum temperature is 40.0 °C; the total charging time is about 40 min; the maximum...
In this paper, the battery energy storage technology is applied to the traditional EV (electric vehicle) charging piles to build a new EV charging pile with integrated charging,...
Results revealed that implementing the PCM containers increased the energy storage from 16.4 to 48.2 kJ/kg (in the case of PCM 2), while the temperature distribution was always lower during the charging, due to the smaller thermal radius of the piles.
The experimental data shows that the initial minimum temperature of the battery is 39.5 °C; the maximum temperature is 40.0 °C; the total charging time is about 40 min; the
This paper investigates the heat transfer response of the concrete pile foundation subjected to temperature changes from the compressed air for the renewable energy storage purpose. The non-steady state heat transfer analysis was
With the theory of geotechnical medium circular hole expansion, the elastic and elastic–plastic solutions of radial stress of energy piles caused by temperature change are derived in this work and the analytical
The analysis results show that the group pile effect significantly increases the temperature up to more than 100 °C depending on the location and changes its distribution in both concrete and...
With the theory of geotechnical medium circular hole expansion, the elastic and elastic–plastic solutions of radial stress of energy piles caused by temperature change are derived in this work and the analytical model under joint action of axial–radial temperature effect are implemented into the numerical model with load transfer method
Results revealed that implementing the PCM containers increased the energy storage from 16.4 to 48.2 kJ/kg (in the case of PCM 2), while the temperature distribution was
The analysis results show that the group pile effect significantly increases the temperature up to more than 100 °C depending on the location and changes its distribution in both concrete and
After 210 days of solar energy storage, the temperature of the energy pile reaches the maximum value of about 24 °C. The corresponding temperature increase of the pile is about 9
Firstly, the characteristics of electric load are analyzed, the model of energy storage charging piles is established, the charging volume, power and charging/discharging timing...
Ming et al. (2022) illustrates the thermal management performance of the charging pile using the fin and ultra-thin heat pipes, and the hybrid heat dissipation system effectively increases the temperature uniformity of the charging module.
Firstly, the characteristics of electric load are analyzed, the model of energy storage charging piles is established, the charging volume, power and charging/discharging
After 210 days of solar energy storage, the temperature of the energy pile reaches the maximum value of about 24 °C. The corresponding temperature increase of the pile is about 9 °C, which is within the
The analysis results show that the group pile effect significantly increases the temperature up to more than 100 °C depending on the location and changes its distribution in both concrete and...
The heat power of the fast charging piles is recognized as a key factor for the efficient design of the thermal management system. At present, the typical high-power direct current EV charging pile available in the market is about 150 kW with a heat generation power from 60 W to 120 W ( Ye et al., 2021 ).
The typical cooling system for the high-power direct current EV charging pile available in the market is implemented by utilizing air cooling and liquid cooling. The heat removal rate of the air cooling scheme depends upon the airflow, fans, and heat sinks ( Saechan and Dhuchakallaya, 2022 ).
Ming et al. (2022) illustrates the thermal management performance of the charging pile using the fin and ultra-thin heat pipes, and the hybrid heat dissipation system effectively increases the temperature uniformity of the charging module.
The heat generated during fast charge duration will affect the lifetime of fast charging pile, even a fire accident. The latest data reveals that the present fastest EV charging still performs at a lower rate than internal combustion engine vehicles refueling time ( Gnann et al., 2018 ).
The temperature rises of the charging module during higher charging rates are evaluated under the different cooling themes. Subsequently, the effects of PCMs thermo-physical parameters including thermal conductivity, latent heat, and melting point are investigated.
This study aims to control the fast charging module temperature rises by combining air cooling, liquid cooling, and PCM cooling. Based on the developed enthalpy method, a comparative analysis of the charging module’s temperature rise with and without the PCM demonstrates the beneficial effect of applying the PCM.
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