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《中国工程科学》 >> 2006年 第8卷 第1期

物质流分析的跟踪观察法

东北大学 国家环境保护生态工业重点实验室,沈阳 110004

资助项目 :国家科技攻关计划资助项目(2003BA614A-02) 收稿日期: 2005-06-28 修回日期: 2005-07-29 发布日期: 2006-01-20

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摘要

流动,是物质(如铜、铝等)流动和流体流动二者所具有的基本特征,基于这个论点,简要地回顾了流体力学中研究流体流动的两种方法,即拉格朗日法和欧拉法;相应地提出了物质流分析的两种方法,即跟踪观察法和定点观察法。由于前者在文献中未见报道,因此对它进行了重点说明。强调了物质流的跟踪观察法既适用于稳态物质流(产品产量不变),也适用于非稳态物质流(产品产量增长或下降)。以钢铁产品生命周期的铁流图为例,说明了物质流的跟踪模型。在引入了物质流的非稳度后,提出了物质流各项指标的计算式,以及它们之间的相互关系。以瑞典铅酸电池系统为对象,计算了其中铅流的各项指标,并进行了必要的分析。

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