| 运行参数对喷雾干燥烟气脱硫效率影响的数值模拟 |
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| 引用本文： | 王雷,章明川,田凤国,谢广录.运行参数对喷雾干燥烟气脱硫效率影响的数值模拟[J].热能动力工程,2005,20(3):262-265,269. |
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| 作者姓名： | 王雷 章明川 田凤国 谢广录 |
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| 作者单位： | 上海交通大学,机械与动力工程学院,上海,200240 |
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| 基金项目： | 国家自然科学基金资助项目(90210016) |
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| 摘 要： | 以计算流体力学为基础，结合浆滴脱硫的双膜模型，以Euler/Lagrange方法建立了喷雾干燥烟气脱硫的数值计算模型及程序，在较广的参数变化范围内，模拟结果与Hill和Zank的试验数据符合较好；同时对影响脱硫效率的运行参数如雾化浆滴粒径、出口饱和温距、入口SO2浓度和钙硫摩尔比进行了模拟。相对于常用的一维平推流模型，能够方便地跟踪单个浆滴的运动轨迹及脱硫和蒸发经历，直观的显示出整个反应器内的流场、温度场及组分的空间分布。
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| 关 键 词： | 烟气脱硫 喷雾干燥 浆滴 数值模拟 |
| 文章编号： | 1001-2060(2005)03-0262-05 |
Numerical Simulation of the Influence of Certain Operating Parameters 0n Desulfurization Efficiency During a Spray Drying Absorption Process |
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| WANG Lei,ZHANG Ming chuan,TIAN Feng guo,et al.Numerical Simulation of the Influence of Certain Operating Parameters 0n Desulfurization Efficiency During a Spray Drying Absorption Process[J].Journal of Engineering for Thermal Energy and Power,2005,20(3):262-265,269. |
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| Authors: | WANG Lei ZHANG Ming chuan TIAN Feng guo |
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| Abstract: | Based on computational fluid dynamics and in connection with a dual film model of slurry droplet desulfurization a numerical calculation model and procedures for a spray drying based flue gas desulfurization were established by employing an Euler/Lagrange approach. In a relatively wide range of parameter variation the results of simulation are in fairly good agreement with the test data of Hill and Zank. Meanwhile, a simulation was conducted of some operating parameters, which may affect desulfurization efficiency. Such parameters include: particle diameter of atomized slurry droplet, outlet saturated temperature head, inlet SO 2 concentration and calcium/sulfur molar ratio. Relative to the commonly used one dimensional plug flow model the model under discussion can easily keep track of the motion trajectory of a single slurry droplet, desulfurization and evaporation process, thus visually displaying the flow field, temperature field and spatial distribution of constituent elements in the reactor as a whole. |
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| Keywords: | flue gas desulfurization spray drying slurry droplet numerical simulation |
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