多茸状金属纤维载体成形机理及定向微通道均匀化控制

项目名称： 多茸状金属纤维载体成形机理及定向微通道均匀化控制

项目编号： No.50805052

项目类型： 青年科学基金项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 潘敏强

作者单位： 华南理工大学

项目金额： 21万元

中文摘要： 针对燃料电池车间接供氢技术对制氢反应系统的极端要求，申请人提出一种具有多茸状粗糙形貌的定向微通道金属纤维载体，既具备微通道金属载体微通道均匀分布特征，又具备多孔泡沫金属高比表面积特征，实现在极有限的反应体积内获得极高催化反应速率。项目将研究不同加工条件下具有多茸状粗糙形貌的金属纤维加工机理，探索不同尺度范围金属纤维烧结微通道的成形机理，建立金属纤维烧结的微通道结构模型。同时研究多尺度多通道下低碳醇重整制氢反应作用机理与传热传质机理，建立多尺度多/微通道的流体速度分布优化理论模型，实现由功能需求主动设计金属纤维烧结载体内定向微通道结构参数和特征的目的，使我国低碳醇制氢微通道反应器制造技术和理论水平达到国际先进水平。

中文关键词： 间接供氢；多茸状纤维；定向微通道；多尺度；粗糙形貌

英文摘要： To satisfy the extreme demands for the reaction system for indirect hydrogen supply on fuel-cell vehicles, a metal fiber carrier with characteristic of anlter-like coarse surface structure and orient microchannel is proposed. The new carrier not only has the characteristic of uniform distribution of microchannels for the microchannel metal carrier, but also has the characteristic of high specific surface area for the porous foam metal, which can achieve extremely high catalytic reaction rate in a limited reaction volume. In this project, the mechanism of machining antler-like metal fiber under different machining conditions will be studied, and the formation mechanism of sintered metal fibers on different scopes will be studied and then the microchannel structure model for the metal sintered fibers will be established. At the same time, the reaction as well as heat and mass transfer mechanism of low-carbon alcohol reforming for hydrogen production under multi-scale and multi-channel will be investigated, and then the theory model of optimization for the velocity distribution among multi-scale multior micro- channel will be established. The initiative design of structural parameters and characteristics of orient microchannels in the metal sintered fiber carriers will be realized, which can raise the manufacture technique and theory level of low-carbon alcohol reforming for hydron prodution.

英文关键词： indirect hydrogen supply;antler-like fiber;orient microchannel;multi-scale;coarse surface structure