There are several emerging memory technologies looming on the horizon to compensate the physical scaling challenges of DRAM. Phase change memory (PCM) is one of such candidates proposed for being part of the main memory in computing systems. One salient feature of PCM is its multi-level cell (MLC) property which can be used to multiply the memory capacity at the cell level. However, due to the ...

The popularity of using phase change materials (PCMs) for heat storage and recovery metal hydrides’ reaction has grown tremendously. However, a fundamental study the coupling such system with low-temperature PEM (polymer electrolyte membrane) fuel cell is still lacking. This work presents numerical investigation dehydrogenation performance hydride reactor (MHR)-PCM coupled cell. It shown that t...

Phase change materials are substances that absorb and release thermal energy during the process of melting and freezing. This characteristic makes phase change material (PCM)  a favourite choice to integrate it in buildings. Stephan problem including melting and solidification in PMC materials is an practical problem in many engineering processes. The position of the moving boundary, its veloci...

The thermal response characteristic of a hybrid cooler that is charged with a “dry” solid-solid phase change compound is evaluated. A mathematical model that simulates the performance of a cooler/heat storage unit is formulated. A prototype heat sink that incorporates heat storage using a “dry” PCM is tested, and used to benchmark the simulation model. Different heating and cooling strategies a...

We present in this work simulations using the finite difference approximation in 2D for the melting of an encapsulated phase-change material suitable for heat storage applications; in particular, we study CaCl2·6H2O in a cylindrical encapsulation of internal radius 8 mm. We choose this particular salt hydrate due to its availability and economic feasibility in high thermal mass building walls o...

The building envelope design constrains how much HVAC systems must work to provide comfort. High thermal mass in walls is preferable delay heat gain, as well reduce it. Phase Change Materials (PCMs) seem proportionate more without increasing wall thickness because of their high latent heat. Thus, this studies various PCM-based layouts four case studies, H060, H100, H200, and OB, under the tropi...

As DRAM is facing the scaling difficulty in terms of energy cost and reliability, some nonvolatile storage materials were proposed to be the substitute or supplement of main memory. Phase Change Memory (PCM) is one of the most promising nonvolatile memory that could be put into use in the near future. However, before becoming a qualified main memory technology, PCM should be designed reliably s...

Abstract Light-weight materials are commonly used in high-rise buildings to reduce the building weight, but their thermal inertia will increase fluctuation of air-conditioning and heating load indoor comfort. Phase-Change Material (PCM) is employed improve behavior by latent storage, its location has obvious impact on improvement light-weight wall. According this condition, taking common multi-...

This study was carried out within the HYBUILD project, as part of task aimed at developing novel evaporators for compact and direct integration phase-change materials (PCM) into air-conditioning systems efficient utilization solar energy. To achieve this, were designed to contain PCM between refrigerant heat transfer fluid (HTF) channels, allowing a three-media exchange mechanism. paper experim...

Encapsulation of Phase Change Materials (PCM) for energy storage, thermal comfort and many other applications is receiving much attention due to the fact that material, physical characteristics geometry container can affect drastically performance PCM. change materials have usually low conductivity which impairs their charging discharging characteristics. Different geometries were investigated ...