Water overflows from energy storage charging pile

How much solar energy can a 10 m-long energy pile store?

Under the specific thermal boundary conditions adopted, the maximum daily average rate of solar energy storage reached 150 W/m for the 10 m-long energy pile. It decreased to about 35 W/m as the pile length increased to 50 m.

How do energy piles work?

The energy piles combine the foundation piles with the heat exchange pipes, the latter being attached to the steel cage and embedded in the pile body, as illustrated in Fig. 1. In this way, the energy piles sustain the building load and hold the heat exchange pipes simultaneously.

How does pile size affect solar energy storage?

As the pile diameter increases, there has a relatively larger volume of concrete for solar energy storage, leading to a lower pile temperature. As a result of its lower temperature, a higher rate of solar energy storage is observed for cases with larger pile diameters.

What is energy pile?

The energy pile concept can be considered as a to cool/heat buildings is the heat pump (HP) system. Unlike the vast cost of drilling boreholes and the land area required for borehole could be readily employed almost anywhere. Although HPs are installation.

What is the mass flow rate of energy pile?

When the energy pile serves as a heat exchanger for the GSHP system, the mass flow rate is usually about 0.25 kg/s to create a turbulent flow condition and increase the convective heat transfer coefficient .

How to determine the heat exchange capacity of an energy pile?

The heat exchange capacity of an energy pile could be determined from an in situ test (thermal response test) or from an advanced three-dimensional numerical analysis (Ozudogru et al., 2012). Morino and Oka (1994) conducted the first experimental study to assess the heat exchange behaviour of a steel pile equipped with two vertical tubes.