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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >Multi-objective optimization of cooling air distributions of grate cooler with different clinker particles diameters and air chambers by genetic algorithm
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Multi-objective optimization of cooling air distributions of grate cooler with different clinker particles diameters and air chambers by genetic algorithm

机译:不同熟料颗粒直径和空气室通过遗传算法对炉篦冷却器冷却空气分布的多目标优化

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摘要

The paper proposes a multi-objective optimization model of cooling air distributions of grate cooler in cement plant based on convective heat transfer principle and entropy generation minimization analysis. The heat transfer and flow models of clinker cooling process are brought out at first. Then the modified entropy generation numbers caused by heat transfer and viscous dissipation are considered as objective functions respectively which are optimized by genetic algorithm simultaneously. The design variables are superficial velocities of air chambers and thicknesses of clinker layer on different grate plates. The model is verified by a set of Pareto optimal solutions and scattered distributions of design variables. Sensitive analysis of average diameters of clinker particles and amount of air chambers are carried out based on the optimization model. The optimal cooling air distributions are compared by heat recovered, energy consumption of cooling fans and heat efficiency of grate cooler. And all of them are selected from the Pareto optimal solutions based on energy consumption of cooling fans minimization. The results show that the most effective and economic average diameter of clinker particles is 0.02 m and the amount of air chambers is 9. (C) 2016 Elsevier Ltd. All rights reserved.
机译:本文提出了一种基于对流传热原理和熵产生最小化分析水泥厂炉渣冷却器冷却空气分布的多目标优化模型。首先使熟料冷却过程的传热和流量模型引出。然后,由传热和粘性耗散引起的改进的熵生成数分别被视为目标函数,分别通过遗传算法同时优化。设计变量是不同格栅板上的空气室的表面速度和熟料层的厚度。该模型由一组Pareto最佳解决方案和分散的设计变量分布验证。基于优化模型,执行对熟料颗粒的平均直径和空气室的量的敏感性分析。通过热回收,冷却风扇的能量消耗和炉渣冷却器的热效率进行比较,比较最佳的冷却空气分布。所有这些都是根据冷却风扇最小化的能耗的帕累托最优解选。结果表明,熟料颗粒的最有效和经济平均直径为0.02米,空气室的量为9.(c)2016年Elsevier Ltd.保留所有权利。

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