Browsing by Author "Tairi, Abdelaziz"

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A catalyst method for an innovative eco-design strategy using TRIZ approach
(2014) Cherifi, Ahmed; Dubois, Mario; Gardoni, Mickaël; Tairi, Abdelaziz
Today, in the context of product innovation, the environmental dimension takes a new dimension and cannot be separated from other product requirements which make it competitive. Tools are available but unfortunately proficiency levels required for their use are at the expert’s level. Those tools must also be able to clearly identify their benefits, strengths and weaknesses for a given multi-criteria environmental evaluation. In the present work we have adopted an approach using a qualitative evaluation matrix including parameters related to the ease of use of the product related to the organizational preparation for the appropriation of an eco-design approach, in addition to the standard factors of eco-efficiency. In order to help the designer to make a decision, an adapted TRIZ method is proposed (Téoria Rechénia Izobrétatelskikh Zadatch or theory of inventive problem solving). The applicability of this method is justified by the many contradictions in the choices in a study of the life cycle and can help designers and companies to choose an approach to attain a satisfying level of eco-design for the resources invested in it. An application, based on inventive principles, will be adapted and completed. This matrix can help the designer to reduce the scope of his creative investigations. The results of our methodological approach have been tested on cases of creative projects and a certain number of recently patented projects - See more at: http://www.sciencedomain.org/abstract.php?iid=621&id=5&aid=5659#sthash.nEYgb76P.dpuf
Comparative Life Cycle Assessment of Two Types of Truck Bumper Produced in the Algerian Auto Industry
(Bio One, 2020) Kebbouche, Zahia; Tairi, Abdelaziz; Safi, Brahim
Currently, the reduction of weight in automotive is a very important topic to reduce the air pollution. In this context, the purpose of the present paper is to analyze a real case study through a comparison of the environmental impacts between a conventional steel bumper and a polyester prototype. In the first part of this work, a door-to-door life-cycle assessment methodology was used throughout the study of the component manufacturing phase. The SIMAPRO7.0 software is used to evaluate the impacts of both bumpers on the environment and health. The second part is devoted to dust analysis from the polyester workshop. The obtained results have allowed us to show the company that its choice of steel substitution by the polyester is advantageous for certain impacts including the impact of climate change, but unfortunately there may be, given the working conditions of the polyester workshop, a transfer of impact, since we will end up with a risk of health (irritations, cancers) for the workers. LCA has proven to be a very useful tool for validating a redesigned automotive component from an environmental point of view; from this case study, several recommendations were made for the company to design environmentally friendly components , and ecodesign should be introduced into the company's procedures
Improvement of risk management in the marble industry
(2005) Tairi, Abdelaziz; Cherifi, Ahmed
Ergonomic aspects of the marble enterprise are presented with a focus on improving performance. The general context of the national economy and the new judicial environment of enterprises will have serious repercussions on missions of the enterprise. Activities throughout different technol ogical processes applied in the quarry blocks, in the quarry stone and in the marble’s transformation factory have been analysed. Thanks to this approach, the different factors influencing safety and productivity were observed. This permitted to establish the required measures for a better organisation and a new prevention policy
Life cycle assessment application for the medical waste management in Algeria
(2019) Kihal, Nafika; Tairi, Abdelaziz
Our study aimed to assess environmental im-pacts of a medical waste (MW) management sys-tem in using life cycle assessment (LCA) methodol-ogy in Algeria. We use standardized CML2 method to ana-lyze the environmental impacts resulting from one scenario’s MW management system for One kilo-gram of MIW disposed, including: production raw material of the MW, transportation, MW incinera-tion and MW ash storage. Seven impacts categories were taken into ac-count: Abiotic depletion (AD), Acidification, Eu-trophication, Global warming (GWP100), Ozone layer depletion (ODP), Human toxicity (HT) and Fresh water aquatic ecotoxicity (FAET). The data was obtained from Bachir Montouri hospital, the ECFERAL company, ecoinvent data-base and the literatures. Our study showed that all impact categories had significant values, except for ODP. The MW-Transportation contributed to the majority of im-pacts category. The highest impact category of the MW process was the eutrophication about 51% resultant of the fiber cotton production (38%). Despite significant emissions of dioxins, the BTEX and heavy metals which contributed for both HT and FAET impact, the MW incineration process contributed the least for AD, acidification, eutroph-ication, GWP100 after the MW ash storage. Our findings provide a useful tool to guide pol-icymakers in their choice of environmental perfor-mance indicators for disposal of MW.
Methodology for innovative Ecodesign based on TRIZ
(Springer, 2015) Cherifi, Ahmed; Dubois, Mario; Gardoni, Mickael; Tairi, Abdelaziz