下行循环流化床反应器要求气固分离器具有分离效率高、气相停留时间短、压力损失小、设备磨损小等特点。利用气固二相在惯性上的差别,提出了一种新型同轴双锥两级气固快速分离器,并以FCC(F lu id Catalytic Crack ing)为循环物料对该型...下行循环流化床反应器要求气固分离器具有分离效率高、气相停留时间短、压力损失小、设备磨损小等特点。利用气固二相在惯性上的差别,提出了一种新型同轴双锥两级气固快速分离器,并以FCC(F lu id Catalytic Crack ing)为循环物料对该型分离器的分离特性进行了研究。结果表明,同轴双锥两级气固分离器的分离效率在98%以上,气固分离器的压力损失在100 Pa以下,设备磨损小,能够满足下行循环流化床反应器的要求。展开更多
Particle methods have been widely used in many fields such as chemical engineering,material science and energy.Based on an introduction to the application background and characteristics in the programming and implemen...Particle methods have been widely used in many fields such as chemical engineering,material science and energy.Based on an introduction to the application background and characteristics in the programming and implementation of particle methods,some key problems in designing the main computational module of a general software platform for parallel computation with partical methods are discussed.The implementation of the main module of this platform and relevant template library are introduced in the paper.Object-oriented programming and template techniques are adopted in the software development,and the codes are of good generality and extensibility.The software was tested in simulation of 3D air flow in stove hearth using the PPM method and in MD simulation of phase separation of two immiscible components in membrane.The results manifest that the platform provides good facility for large scale particle simulation.展开更多
文摘下行循环流化床反应器要求气固分离器具有分离效率高、气相停留时间短、压力损失小、设备磨损小等特点。利用气固二相在惯性上的差别,提出了一种新型同轴双锥两级气固快速分离器,并以FCC(F lu id Catalytic Crack ing)为循环物料对该型分离器的分离特性进行了研究。结果表明,同轴双锥两级气固分离器的分离效率在98%以上,气固分离器的压力损失在100 Pa以下,设备磨损小,能够满足下行循环流化床反应器的要求。
基金funded by the Technical University of Denmark,Nordic Energy Research,Elsam A/S,Energi E2 A/S,PS0 funds from Eltra A/S and Elkraft A/Sthe Danish Energy Research program.supported by the National Natural Science Foundation of China(90210034)National Basic Research Program of China(2004CB719704).
文摘Particle methods have been widely used in many fields such as chemical engineering,material science and energy.Based on an introduction to the application background and characteristics in the programming and implementation of particle methods,some key problems in designing the main computational module of a general software platform for parallel computation with partical methods are discussed.The implementation of the main module of this platform and relevant template library are introduced in the paper.Object-oriented programming and template techniques are adopted in the software development,and the codes are of good generality and extensibility.The software was tested in simulation of 3D air flow in stove hearth using the PPM method and in MD simulation of phase separation of two immiscible components in membrane.The results manifest that the platform provides good facility for large scale particle simulation.
