In latent thermal energy storage, heat is transferred between a single- or two-phase heat transfer fluid and a solid/liquid phase change material. Due to the low thermal conductivity of most suitable storage materials, heat exchangers with highly thermally conductive fin structures are used to ...
In this effort, we evaluated the device performance for a range of design variables (fin pitch, fin length, tube diameter, etc.) and selected the design with the largest energy density for a 1-h discharge. In this analysis we found that larger fin spacings (∼6 mm) were preferable, ...
The heat transfer enhancement in the latent heat thermal energy storage system by using an internally finned tube is presented in this paper. The phase change material fills the annular shell space around the tube, while the transfer fluid flows within the internally finned tube. The melting of ...
The energy storage system can also promote efficient energy use in the field of daily life and industry, which is helpful for low carbon emissions [13]. At present, the main energy storage methods are electrochemical energy storage (lithium-ion batteries, lead-acid batteries, flow batteries, sod...
An upper threshold for the power density generated by the diurnal thermal resonator is estimated to be 330 μW cm−2 for a device limited by convection through the heat fin (Supplementary Note 12). Clearly, maximizing thermal effusivity is paramount to optimizing the harvestable power from...
Frosting performance of tube fin heat exchanger with wavy and corrugated fins [J]. Experimental Thermal and Fluid Science, 1991, 4: 613–618. Article Google Scholar O’NEAL D L, PETERSON K T, ANAND N K, SCHLIESING J S. Refrigeration system dynamics during the reversing cycle defrosting ...
In this study, the phase change materials (PCM) thermal energy storage system utilizing a novel webbed tube heat exchanger was designed and numerically investigated. The obtained simulation results were then compared with three types of conventional heat exchangers. These included: shell and tube heat...
13.2.2.2 Latent heat storage The latent heat storage (LHS) uses phase change materials, such as wax, and salt hydrates, as the storage medium, whereby energy is absorbed or released when a change of phase occurs at a specific temperature. The latent heat storage system's output can be modi...
FIG. 3, the second fluid source80is an external thermal energy exchanger (e.g. a shell and tube heat exchanger, a chiller, etc.) in fluid communication with at least one other system90of the vehicle via a conduit92. It is understood that the external thermal energy exchanger may include...
A system, configured to be disposed in a information technology equipment rack for providing ice thermal storage, includes a tank configured to hold water, a heat exchanger disposed