Models for life cycle assessment of manufactured products

机译：制成品生命周期评估模型

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One of the objectives of the life cycle is to evaluate environmental burdens with a product, process or activity by quantifying energy and materials used and wastes released to the environment. The assessment includes the entire life cycle of the product encompassing extraction and processing raw materials, manufacturing, transportation, recycling and disposal. This paper describes a set of mathematical models and a logic framework to systematically arrive at these assessments. This is done by emphasizing the physical aspect of manufacturing systems whose function is to transform raw materials into useful products using physical energy and skill specific human time. Under this theoretical structure, the production system is modularized into networks of processing centers, each of which is represented mathematically by models derived from material and energy balance equations.

机译：生命周期的目标之一是通过量化所使用的能源和材料以及释放到环境中的废物来评估产品，过程或活动对环境造成的负担。评估包括产品的整个生命周期，包括原材料的提取和加工，制造，运输，回收和处置。本文介绍了一套数学模型和一个逻辑框架，可以系统地得出这些评估结果。这是通过强调制造系统的物理方面来完成的，这些系统的功能是使用物理能量和特定于人的时间将原材料转化为有用的产品。在这种理论结构下，生产系统被模块化为加工中心网络，每个加工中心都由从材料和能量平衡方程式导出的模型进行数学表示。

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《Electronics and the Environment, 1994. ISEE 1994. Proceedings., 1994 IEEE International Symposium on》|1994年|P.94-99|共6页
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Tummala R.L.; Koenig B.E.;
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中图分类无线电电子学、电信技术;
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Models for life cycle assessment of manufactured products

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