Velocity Distribution inside a Laminated‐Sheet Microchannel Reactor
Velocity Distribution inside a Laminated‐Sheet Microchannel Reactor
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DOI：
10.1002/ceat.201400447
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发表时间：
2015-02
影响因子：
2.1
通讯作者：
Minqiang Pan;Lei Li;X. Shao;Dehuai Zeng
中科院分区：
文献类型：
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作者：
Minqiang Pan;Lei Li;X. Shao;Dehuai Zeng
在叠片式微通道反应器中，将具有相同或不同结构的多个微通道片相互叠层在一起。研究了微通道和歧管结构以及层合板的数量对相同结构的每一片微通道间速度分布的影响。结果表明，较大的微通道长度、高深宽比的微通道和中心对称的管汇结构有利于在每个薄板上形成相对均匀的速度分布。考虑到中心对称的歧管结构，入口和出口在微通道宽度方向上到微通道的距离较短，在微通道长度方向上到微通道阵列的距离较长，有助于获得更均匀的速度分布。层合板数对每片微通道间的速度分布影响不大。
In a laminated-sheet microchannel reactor, several microchannel sheets with the same or different structures are mutually laminated together. The effect of microchannel and manifold structure as well as the number of laminated sheets on the velocity distribution among microchannels in each sheet with the same structure is investigated. Results indicate that a large microchannel length, a high-aspect-ratio microchannel, and centrosymmetric manifold structure are favorable for a relatively uniform velocity distribution in each sheet. Considering the centrosymmetric manifold structure, a shorter distance from inlet and outlet to microchannels in direction of the microchannel width and a longer distance to the microchannel array in direction of the microchannel length can contribute to a more uniform velocity distribution. The laminated-sheet number has only a minor impact on the velocity distribution among microchannels in each sheet.