Articles techniques et présentations

One of the most critical aspects on water electrolysis is gas-liquid separation, especially in systems with forced convection. The main problem of this kind of circulation is that a gas fraction could return to the electrolysis circuit. A suitable design of separator devices could be a ... En savoir plus

Magnetophoresis of non-magnetic particles is the induced motion of non-magnetic particles suspended in magnetic media on the application of a magnetic field gradient. Magnetophoresis can be used in special separation devices to separate colloidal particles based on their sizes. ... En savoir plus

Oxygen-free methane aromatization has been attracting growing attention due to a potential means for producing high valuable products such as aromatics and hydrogen. Many studies have been focused on catalysts screening and characterization, and elementary thermodynamic steps of the ... En savoir plus

CO2 capture and further conversion into valuable products can be a promising solution against global warming. Normally, CO2 conversion can be achieved by chemical methods, by photocatalytic and electrocatalytic reduction [1]. Specifically for electrocatalytic reduction of CO2, challenges ... En savoir plus

研究基于自主研发并已投入运行的超高纯氪氙分离低温精馏系统的实验数据，在 COMSOLMultiphysics 软件利用非等温流动和多孔介质中的稀物质传递模块建立极低浓度下波纹规整填料PACK-13C 的 REU 模型，利用化学模块描述不同温度、压力和浓度下的气液物性，通过Delft模型计算得到气液间传质系数，利用传质通量边界和边界热源模拟气液界面上的传质传热现象，分析气液两相传热传质特性，研究极低浓度(<e-7 mol/mol)下的气液传质过程，并通过改变填料几何结构进行优化分析。 模拟结果显示REU模型能较为准确地表征填料液膜上的浓度变化 ... En savoir plus

In this conference we have brought together a community that is scientifically diverse in an event that allows for inspiring contacts about the use of COMSOL Multiphysics. It is an event to connect with the Spanish and Portuguese COMSOL Multiphysics users and participate in training ... En savoir plus

The high power of X-ray beam delivered by synchrotrons and free electron lasers, up to 240 W/mm2, requires heat load management solutions to obtain the best performance from the optical elements which will shape the beam for its use in the experimental stations [1]. One solution is the ... En savoir plus

During examination of molecular gas flow in freeze dryers in near-vacuum properties, an idea came up to model a molecular fish trap nozzle. An appropriate shape of this fish trap nozzle allows to separate free flowing molecules into 2 chambers, and obtain a pressure gain in a isothermal ... En savoir plus

A comprehensive mathematical model that includes mass and heat transfer was developed for the transport of gas mixture of carbon dioxide and methane through hollow fiber membrane (HFM) contactor. COMSOL Multiphysics® was used in solving the set of partial, ordinary and algebraic ... En savoir plus

In semiconductor gas sensors, the base of the gas detection is the interaction of the gaseous species at the surface of the semiconducting sensitive material. Since the chemical reactions at the surface of the sensor material are functions of temperature. We simulate our µHeater design ... En savoir plus