CIESC Journal ›› 2012, Vol. 63 ›› Issue (8): 2418-2424.DOI: 10.3969/j.issn.0438-1157.2012.08.012

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Bionic design and optimization for monolithic catalyst chip

FANG Yu,WANG Lijun,WU Wei,LI Xi   

  • Received:2012-01-06 Revised:2012-05-17 Online:2012-08-05 Published:2012-08-05
  • Supported by:

    the National Natural Science Foundation

整体式催化剂芯片的仿生设计与优化

方宇,王丽军,吴玮,李希   

  1. 浙江大学化学工程与生物工程学系,浙江 杭州 310027
  • 通讯作者: 王丽军
  • 基金资助:

    国家自然科学基金;教育部博士点基金

Abstract: According to principles and features of biological circulatory system,a novel monolithic catalyst chip with bionic micro-channel network configuration was proposed.It included a multi-stage and multi-function network with separated inflow and outflow systems.A series of high-resolution CFD simulations and optimizations were performed to investigate the characteristics of the bionic configuration.Compared with conventional fixed-bed catalyst chip,flow resistance was greatly reduced by using bionic micro-channel network at the same residence time.Back-mixing was lowered in the optimal bionic network. Strong robustness was verified for the bionic micro-channel network configuration,which would reduce worse effects induced by uncertain factors,such as short passing or blocking in micro-channel network. This kind of bionic network is an ideal configuration fit for monolithic catalyst chip.

Key words: monolithic catalyst, micro-channel, bionic network, CFD simulation, configuration optimization

摘要: 借鉴生物体内循环系统的原理和组织结构特征,设计了一种具有进料、出料仿生微通道网络分布的整体式催化剂芯片。对仿生通道网络构型进行了CFD模拟研究和优化计算。模拟发现,在保证相同停留时间条件下,相比传统床层式催化剂芯片,具有仿生微通道网络分布的整体式催化剂芯片流动阻力极大降低。经过构型优化的仿生通道结构芯片返混小,平推效果较好。稳定性分析表明,仿生通道结构芯片还具有较好的抗干扰性,能够有效地降低流道短路或断路等不确定因素带来的不良影响,是一种理想的催化剂芯片构型。

关键词: 整体式催化剂, 微通道, 仿生网络, CFD模拟, 构型优化

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