基于CFD的船舶柴油机SCR脱硝系统变工况导流板角度控制规则设计
he Research on Control Rules with Gate Leaves in The SCR-DeNOx System Of Marine Diesel Egines
选择性催化还原法是船舶柴油机尾气脱硝系统中最有效的方法之一。在系统设备和材料不变的条件下，该系统的脱硝率取决于两个关键因素：一是尾气与还原剂的浓度混合均匀程度；二是混合气体在进入催化剂前的速度分布均匀程度。本文以MAN 6S50MC-C型船用柴油机为研究对象，基于计算流体力学方法建立了选择性催化还原脱硝系统的流动机理模型，开展了相应流程模拟，重点研究了导流板对首层催化剂表面上的气体速度分布的影响，并基于数据分析建立了变工况下的导流板角度控制规则。
Selective Catalytic Reduction (SCR) with ammonia is regarded as one of the most important technologies to reduce the NOx emissions from marine diesel engines. The NOx removal efficiency depends highly on the uniform distributions of the ammonia concentration and the velocity at the entrance of the catalyst layer without changing the geometry size and catalyst material. In this work, three-dimensional CFD simulations are carried out for a SCR-DeNOx facility of marine diesel engine(MAN 6S50MC-C). Specially, the influence of the gate leaves on the distribution of the velocity is investigated. The control rules of gate leaves are built based on data analysis for the variable working conditions of marine diesel engines .
梁勋荃、门秀艳、刘双双、许媛媛
环境污染、环境污染防治内燃机热工量测、热工自动控制
计算流体力学（CFD）、船舶柴油机、选择性催化还原脱硝（SCR-DeNOx）、导流板、角度控制规则。
omputational Fluid Dynamics(CFD)marine diesel engineSelective Catalytic Reduction Denitration(SCR-DeNOx)gate leavescontrol rules of angle .
梁勋荃,门秀艳,刘双双,许媛媛.基于CFD的船舶柴油机SCR脱硝系统变工况导流板角度控制规则设计[EB/OL].(2015-02-13)[2025-08-03].http://www.paper.edu.cn/releasepaper/content/201502-183.点此复制
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