Articles techniques et présentations

Sodium/metal chloride storage batteries, used in hybrid propulsion applications, provide high energy and power densities safely and reliably. To understand the dynamics of electrochemical cycling, a high-temperature sodium/ferrous chloride storage cell was modeled in two dimensions. The ... En savoir plus

A thorough study on the adsorption behaviour of carbon dioxide (CO2) on silica aerogel is critical for CO2 sequestration and recovery. Although CO2 sorption focuses mainly on the lab scale setup, research on the larger bulk counterparts, which is used at industry central facility is ... En savoir plus

This paper assesses the capability and sensitivity of COMSOL Multiphysics® to evaluate phase-changing material suitability for Thermal Energy Storage. The simulated system is a packed bed of encapsulated spheres, containing phase changing materials (PCM), placed inside a single ... En savoir plus

Metal hydrides are a widely-used method for storing and releasing hydrogen chemically under moderate conditions. This paper will present how highly dynamic metal hydride storage has been simulated and optimized using COMSOL Multiphysics. It will be shown how mass, energy and momentum ... En savoir plus

In this paper, a 3D dynamic simulation for a portion of a metal hydride-based (LaNi5) hydrogen storage tank is presented. The model is based on heat and mass balances and considers coupled heat and mass transfer resistance through a non-uniform pressure and temperature sorbent bed. The ... En savoir plus

Metal hydride based thermal energy storage systems belong to the category of heat storage systems which rely on reversible thermo-chemical reactions to store and release heat. Specifically, these systems utilize metal/alloy hydride decomposition (endothermic) and formation (exothermic) ... En savoir plus

Small-scale short-term thermal energy storage (TES) systems and large-scale seasonal TES systems have been the focus of many research projects. However, large-scale short-term TES units have not been covered in great depth, even though they play an important role by decoupling the heat ... En savoir plus

The integration of a Thermal Energy Storage (TES) system in District Heating (DH) networks allows increasing the share of renewables in the energy scheme, but it requires a proper pre-design phase in which the modelling of the TES system is adequately driven. The main purpose of this ... En savoir plus

Latent Heat Thermal Energy Storage (LHTES) systems utilize a Phase Change Material (PCM) for storing Latent Heat Energy to be used for a variety of applications like Solar Thermal based Air Conditioning to handle the heating and cooling demands of buildings during peak hours. Our project ... En savoir plus

A model for CO2 storage is presented. It is shown that the system is highly dynamic, i.e. results depend strongly on parameter disturbances and numerical features. However, a series of scenario calculations shows that there are invariants, most important: the duration of the early ... En savoir plus