| 针对化工系统的(火用)分析模型改进 |
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| 引用本文： | 彭振宇,张冠忠.针对化工系统的(火用)分析模型改进[J].清华大学学报(自然科学版),2006,46(8). |
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| 作者姓名： | 彭振宇 张冠忠 |
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| 作者单位： | 清华大学,航天航空学院,北京,100084 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 为了确定化工系统中优化改造部件的顺序,针对化工系统的实际特点,提出了建立整体系统目的效率同子系统目的效率关系的数学模型的方法,并且提出了整体效率影响因子的概念作为用能系统优化改造的指导原则。同时以热法磷酸生产系统为例进行了建模分析,计算得到了分析的关系模型和各个设备的整体效率影响因子,指出了系统中用能的薄弱环节和改造的重点方向在燃烧塔和水化塔,并同单个子系统目的效率及流图得到的结果和实际改造的结果进行了比较,结果显示,该文方法能够准确方便地指出化工系统能量利用合理性改造的重点方向。
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| 关 键 词： | (火用)分析 化工系统 模型 影响因子 |
Development for exergy analysis model of chemical engineering systems |
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| PENG Zhenyu,ZHANG Guanzhong.Development for exergy analysis model of chemical engineering systems[J].Journal of Tsinghua University(Science and Technology),2006,46(8). |
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| Authors: | PENG Zhenyu ZHANG Guanzhong |
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| Abstract: | An optimization modeling method was developed for chemical engineering systems using an exergy-efficiency analysis.The Integrated-efficiency Influence Quotient(IIQ) was defined as the optimization turget.The production of phosphoric acid was used as an example.The IIQ for all the units showed that the phosphoric furnace and hydration column have the lowest energy utilization efficiences in need of optimization.The results compare well with exergy flow and object exergy efficiency analyses and results of real processes to show that this optimization method provides good results. |
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| Keywords: | exergy analysis chemical engineering system model influence quotient |
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