Analysis of discharge time of supporting energy storage

What is the relationship between discharge temperature and specific energy?

One is related to the discharge temperature, which is constant for the first and changes for the latter, and the other is related to the specific energy, which can be from five to fourteen times higher in the first compared to the latter , , , .

How does a triangular tube improve energy storage/release capacity?

Energy storage/release capacity improved by 0.15 % to 12 % with the triangular tube. Phase change materials (PCMs) play a critical role in energy storage systems due to their high latent heat capacity, enabling efficient thermal energy storage and release during phase transitions.

Does a multi-tube lhes method affect charge/discharge time and energy storage/release capacity?

Studies on the multi-tube LHES method have focused on tube size, number, geometry, and layout. However, studies that collectively address the effects of tube geometry, size, number, and layout on charge/discharge time and energy storage/release capacity are not yet available in the literature.

Which multi-tube lhes has the highest energy storage/release capacity?

Multi-tube LHES with various geometries using metal foam-enhanced PCM is analyzed. The triangular tube achieved the highest reduction in charge time at 10.4 %. The square tube achieved the highest reduction in discharge time at 27.8 %. The triple triangle tube provided the greatest energy storage/release capacities.

What determines the discharge time at nameplate power?

The storage temperature also determines the discharge time at nameplate power. Varying the TES temperatures from 1100 K to 1300 K, we observe an increase by 61% of the discharge time.

What is the lowest discharge time for a square inner tube?

The lowest discharge times for all designs were obtained for the square inner tube geometry. The 100 % solidification rate time for the square inner tube was 10,040 s, 3900 s, 3060 s, and 1440 s for single-, double-, triple- and quadruple-tube designs, respectively.