Recycling economic feasibility dynamic evaluation method and system for product design

Abstract

The present invention discloses a recycling economic feasibility dynamic evaluation method and system for product design and belongs to the product recycling feasibility evaluation technical field. The method includes the following steps that: S1, material categories constituting a product to be evaluated and the mass of the material categories are collected; S2, an environmental impact factor EI benefitted from the recycling of the product to be evaluated is calculated; S3, an economic benefit factor EE generated by the recycling of the product to be evaluated relative to the re-production of the product to be evaluated is calculated, wherein the economic benefit factor EE integrates decreased carbon emissions and ET and decreased energy consumption EC brought by the recycling of the product to be evaluated relative to the re-production of the product to be evaluated; and S4, the economic feasibility factor CEER of the recycling is calculated. The present invention also discloses a recycling economic feasibility dynamic evaluation system for product design. According to the recycling economic feasibility dynamic evaluation method and system for product design of the invention, the feasibility of product recycling is evaluated through the integration of factors such as the economy benefits of the product and influence on the environment caused by the recycling of the product.

Description

technical field [0001] The invention relates to the technical field of assessing the feasibility of product reuse, in particular to a method and system for dynamically evaluating economic feasibility of product design for reuse. Background technique [0002] With the development of social productivity, people's requirements for material conditions are getting higher and higher, and the life cycle of consumer products is also shortening, which leads to the generation of a large number of waste products, resulting in a huge waste of resources and environmental pollution. However, these waste products are not worthless, and many of their components and materials can be directly or indirectly recycled. Due to the gradual scarcity of resources and the increasingly prominent environmental problems, the recycling of waste products, as an effective way to achieve energy saving and emission reduction and promote circular economy, is attracting more and more attention. Usually, the p...

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Problems solved by technology

However, this method of evaluating economic rationality often only focuses on the economic benefits of product material recycling and the recycling process, ignoring the economic benefits brought about by the environmental impact avoided by recycling, and this part of the economic benefits is often more obvious. Should not be directly ignored (e.g. recycling of product materials for secondary production requires far less energy than primary production, that is, product recycling actually avoids the energy required for primary production of product constituent materials energy consumption, while reducing environmental impact, there are also potential huge economic benefits

At the same time, recycling reduces greenhouse gas emissions, especially carbon emissions. With the emergence of carbon trading, the certified emission reductions generated by recycling-related projects under the Clean Development Mechanism can also bring good economic benefits ), therefore, it is not comprehensive enough to only consider the economic feasibility of product recycling

Secondly, because some price variables that change over time, such as the price fluctuation of waste products, have an important impact on the accuracy of the evaluation, and the original evaluation methods often take the design stage to the economic feasibility of product recycling in the design stage. Price fluctuations during the scrapping phase are ignored, which is also clearly unreasonable

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