tailieunhanh - Product Design for the Environment: A Life Cycle Approach - Chapter 15

Chu kỳ phục hồi sản phẩm Kế hoạch và Phân tích chi phí-lợi ích của Phục hồi Các yếu tố khác nhau ảnh hưởng đến sự phù hợp của một sản phẩm bị thu hồi ở các cấp độ khác nhau (trực tiếp tái sử dụng, tái sử dụng các bộ phận, tái chế). Một hoạt động phục hồi hiệu quả, do đó, đòi hỏi sự đánh giá đúng đắn của tất cả những yếu tố này (dự đoán tuổi thọ, sự suy giảm về hiệu năng, tái sử dụng vật liệu, sự phân chia của các thành phần từ các. | Chapter 15 Product Recovery Cycles Planning and Cost-Benefit Analysis of Recovery Various factors influence the suitability of a product to be recovered at different levels direct reuse reuse of parts recycling . An efficient recovery operation therefore requires the correct evaluation of all these factors predicted lifespan deterioration in performance recyclability of materials separability of components from the constructional system . This type of analysis is thus essential in the design phase in order to plan possible recovery cycles at the end of the product s life and for an evaluation of the efficiency of the product s architecture and component details. An increase in the volumes recovered can be obtained by modifying certain characteristics of product architecture or by simply varying certain design choices regarding materials or shape of components in a way that allows a recovery plan involving greater volume flows. In most cases however modifications of this type result in higher production costs. In order to plan economically sustainable recovery operations it is thus necessary to evaluate their economic impact. In particular it is important to determine the conditions under which an increase in the volumes recovered which entails an undoubted environmental benefit is also economically advantageous. This chapter describes a method to aid designers in making the best choices in order to plan the recovery at reuse levels direct reuse reuse of parts for a product at the end of its useful life. Having outlined an effective design methodology for this purpose calculation models are introduced here for several reasons to support the quantification of determinant factors allowing the definition of the reusable parts of the product and the recovery cycles planning and simulation to evaluate an indicator that translates the environmental effects of recovery cycles in terms of extension of the product s useful life and to determine the condition for which an .