A study on extending technologies lifespan for the environment safety
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Department of Mechanical Engineering, Nagaoka University of Technology, Japan
Amal Labidi   

Department of Mechanical Engineering, Nagaoka University of Technology, Japan
Submission date: 2020-10-29
Acceptance date: 2021-01-19
Online publication date: 2021-03-29
Publication date: 2021-03-29
Journal of Machine Engineering 2021;21(1):109–120
The technological devices have become a big burden for the environment. Today, there is an agreement among researchers that this issue must be considered from a life cycle perspective. The best scenario would be to extend the devices lifespan. However, an old device, is usually linked to low performances, low profit, high risks, etc. In this paper, the Double-Eco model, an evaluation platform of the compromise between the performances, cost, ecology, safety and lifespan is developed. Also, the environmental impacts of the lifespan are highlighted through the example of personal computers and the DE model is applied to three types of grease lubrication as case of study. The results show that (1) evaluating a technology with all its aspects is efficient when deciding whether to extend its lifespan (2) based on the DE model, the lubrication with the longest lifespan has a better evaluation than the two other studied cases.
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