Thermal characteristics of energy storage charging piles

Can a fin and ultra-thin heat pipe reduce the operation temperature of charging piles?

The charging speed of the charging piles was shorted rapidly, which was a challenge for the heat dissipation system of the charging pile. In order to reduce the operation temperature of the charging pile, this paper proposed a fin and ultra-thin heat pipes (UTHPs) hybrid heat dissipation system for the direct-current (DC) charging pile.

Do energy piles have a high heat transfer and bearing capacity?

Author to whom correspondence should be addressed. Energy piles, combined ground source heat pumps (GSHP) with the traditional pile foundation, have the advantages of high heat transfer efficiency, less space occupation and low cost. This paper summarizes the latest research on the heat transfer and bearing capacity of energy piles.

Do thermal loads affect energy pile capacity?

Moreover, thermally-induced forces applied to energy piles due to compression and tension should not reach the ultimate pile capacity. The distribution of stresses and strains induced by imposed thermal loads highly depends on the degree of freedom of the pile (DOF).

Does a pile cap affect the thermo-mechanical behavior of energy piles?

Wu et al. (2018) introduced the effect of the pile cap on the thermo-mechanical behavior of energy piles. They found that the pile cap poses additional restrains on the energy piles, resulting in smaller irreversible head displacements compared to that without the pile cap.

How efficient is heat transfer in an energy pile?

The efficiency of heat transfer in an energy pile depends on the design parameters concerning the characteristics of the pile, pipe, concrete, fluid, and ground. The configuration of heat exchanger pipes is found to be the most influential parameter.

How do design parameters affect thermo-mechanical performance of energy piles?

Batini et al. (2015) studied the thermo-mechanical effects of many design parameters. They found that the configuration of tubes as U-, double U- or W-shape is the most important factor in both the thermal and mechanical performance of energy piles. They also found that the aspect ratio of the pile strongly affects the thermo-mechanical behavior.