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COMSOL Conference 2024 論文集を見る
熔盐堆是唯一一种以液态为燃料的反应堆，熔盐堆研究不同于其他反应堆。本文采用多物理场耦合方法模拟熔盐堆发生工况时熔盐堆中一些参数的变化[1-4]。我们将反应堆模型简化为一个石墨围成的空腔结构，如图[1a]。为简化计算采用二维轴对称图形，如图[1b]。分别采用流体流动接口中单向流中的湍流模式模拟熔盐流体流动、传热模块中流体传热模拟熔盐传热、传热模块中固体传热模拟石墨传热、稀质传递接口模拟反应堆中先驱核浓度、系数型偏微分方程模拟中子扩散。基于以上五个物理场耦合的情况下对一回路发生失流以及石墨发生膨胀两种工况下研究熔盐堆温度变化及先驱核浓度的变化 ... 詳細を見る
Simulation of criticality accident transients offers the ability to confirm understanding of critical configurations, bound accident scenarios and aid comprehensive emergency planning. Computational ability to recreate excursion power histories in fissile solution is sought due to the ... 詳細を見る
The rotary kiln process is a commonly practiced method in the industry for producing sponge iron using coal. In the industry, there have been recent reports of premature failures of certain air tubes in a rotary kiln. Most of those cases have concentrated on those air tubes which run ... 詳細を見る
A lot of techniques are developed to treat soils polluted by hydrocarbons pollutants: incineration, thermal treatment, extraction, chemical oxidation, bioremediation… Some of these techniques are very energy consuming (incineration, thermal treatment…) and often need a subsequent ... 詳細を見る
能量存储技术是减少能量浪费和节约能源的最为有效的手段之一。热化学储能技术具备高功率、大容量和低损耗的特点，在实际应用中可近乎无损耗地进行跨季节性利用，上述优点使得热化学储能近年来吸引了国内外学者的广泛关注。热化学能存储过程涉及流动、传热、传质、反应多个物理过程，为了完成实验室级测试到工业级应用的推广，储能设备的仿真模拟是必不可少的一环。为了简化计算，目前几乎所有的数值研究都假设储能材料的孔隙率为均匀且定常的；但在实际的物理过程中，孔隙率与反应程度紧密相关并随时间和空间变化。本文通过推导建立孔隙率变化的热化学储能模型 ... 詳細を見る
This work examined in detail the a priori prediction of the axial dispersion coefficient from available correlations versus obtaining it and also mass transfer information from experimental breakthrough data and the consequences that may arise when doing so based on using a 1-D axially ... 詳細を見る
The present work is aimed at evaluating the capabilities of COMSOL Multiphysics® to treat heat transfer in Molten Salt Reactors (MSR). The analyzed situation is represented by the molten salt in turbulent regime flowing through a cylindrical channel surrounded by graphite, with both ... 詳細を見る
We formulate a new mathematical model of gas-solids mixing hydrodynamic flow [1] in a combustion chamber with a fluid bed system used in the combustion of mineral coal waste. This model in study is called Model Gas-Solids Mixing and it is constructed by averaging the conservation ... 詳細を見る
Design of Microwave Resonance Cavity (MRC) to generate non-thermal plasma to treat NOx and SOx from marine diesel engine is presented in this paper. Microwave frequency of 2.45GHz is used generate the required plasma. A number of wave guides are used to transfer the microwave energy ... 詳細を見る
Pressurised Heavy Water Reactors (PHWR) play a prominent role in contributing power for the Nuclear Energy Programme in India. In 540MWe type PHWR reactors, there are horizontally placed Liquid Injection Shutdown System (LISS) tubes for injecting poison into the moderator to clamp down ... 詳細を見る
