Improvement of waste tyre recycling technology based on a new tyre markings

Dobrotă, Dan; Dobrotă, Gabriela; Dobrescu, Tiberiu

doi:10.1016/j.jclepro.2020.121141

Cited by 63 publications

(24 citation statements)

References 26 publications

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“…Green technologies utilize automated tire assembly equipment which improves the productivity and decreases the waste and energy consumption (Gent & Walter, 2006) Conventional technologies of tire recycling and recovery consume large amounts of energy and also have very complex processes, thus they are not efficient. In comparison, green technologies of tire recovery can decrease energy consumption and environmental pollution (Dobrotă et al, 2020)…”

Section: Green Technologymentioning

confidence: 99%

Sustainable tire supply chain network design and operations planning using a multi objective , scenario-based optimization approach

Zenouz

Jamalnia

Farrokh

et al. 2021

Preprint

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Each year, millions of tires reach their end of life. Worn-out tires are either buried or burned, both of which harm the environment through polluting the air and groundwater. Companies need to consider their social responsibility, such as employment and regional development, and the environmental impact of their activities when making strategic and operational decisions. This study addresses the closed-loop supply chain network design (SCND) and operations planning problem with regard to the three dimensions of sustainability using a mathematical programming approach. The options of retreading, recycling, and energy recovery together with the use of green technologies are considered to minimize the environmental impacts. The proposed decision model can help supply chain managers in tire manufacturing industry make better-informed decisions in order to achieve the three-fold objectives of sustainability. The developed mathematical model turns out to be a multi-objective, multi-echelon, and multi-product mixed integer linear programming. The model is solved using the Lp-metric method and CPLEX solver. The scenario approach is used to address the uncertainty in demand of new products and the rate of return of worn-out tires. The model solutions are the optimal location of the facilities considering population density and unemployment rate in addition to economic dimension, the optimal amount of allocation, the flow of materials, and the best green technology selection. Sensitivity analysis is also conducted to validate the model and test the robustness of the obtained solutions. Finally, managerial implications are provided.

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Section: Green Technologymentioning

confidence: 99%

Sustainable tire supply chain network design and operations planning using a multi objective , scenario-based optimization approach

Zenouz

Jamalnia

Farrokh

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The current worldwide recycling technologies for waste pneumatic tires allow for various products (see Table 1). However, the demand for certain types of products is not balanced due to the fact that the obtained "raw material" rarely meets the required characteristics, which means alternative solutions must be found [Dobrotă et al, 2020]. The most efficient alternative is devulcanization that allows for significant expanding the range of the new rubber materials and, accordingly, the range of products in demand [Dobrotă, Dobrotă, 2018].…”

Section: Conclusion and Recommendationsmentioning

confidence: 99%

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2021

Foresight and STI Governance

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NAICS -5414 NACE -M74.1 NAICS -54131 NACE -M71.11 NAICS -54191 NACE -M71.11 NAICS -5418 NACE -M73.1 NAICS -54192-9 NACE -M74.2.9 Advertising services Market research services Architectural services Design services Technical testing services Engineering services R&D services Computerrelated services Data processing and information services Consultancy services Accountancy services Legal services (Other Professional Scientific and Technical Services)11 Such a process is known as "KIBSification" [Brax et al., 2008], and described without this label in [Djellal, 2002]. 12 One exception is the UK Foresight Programme, which ran a striking projection on "Detection and Identification of Infectious Diseases" (published in 2006, available at https://bityl.co/4uGx; see also [Suk et al., 2008]; the recent Russia 2030 study drew attention to the danger of pandemics and the scope for new approaches to vaccine development [Gokhberg, 2016].

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“…Debido al gran aumento del número de automóviles en todo el mundo, la acumulación de enormes volúmenes de neumáticos de desecho se ha convertido en un importante problema de gestión de residuos. Una gran cantidad de neumáticos de caucho usados se acumulan en el mundo cada año [1,2]. La gestión de residuos, como todo esfuerzo medioambiental, involucra factores estresantes y receptores.…”

Section: Introductionunclassified

Diseño de una máquina prototipo para la separación y remoción de partículas ferromagnéticas de neumáticos triturados

Moreira

Jiménez

2021

InGenio

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La presente investigación tiene como objetivo el diseño de una máquina prototipo para separación y remoción de partículas ferromagnéticas de neumáticos triturados. Para la selección del prototipo a diseñar se analizaron los modelos existentes. El diseño se realizó mediante el software Autodesk Inventor que permite además realizar el análisis de elementos finitos. Por otra parte, se realizaron los cálculos para la selección del motor, potencia y momento torsor. Los resultados del trabajo presentan que el modelo diseñado tiene al acero AISI 1020 para la estructura inferior y superior, el acero AISI 304 para el tambor magnético y se utilizaron imanes cerámicos C8 debido al bajo costo respecto a otros. El moto-reductor calculado posee una velocidad de 1426 min-1 y el reductor es 40:1. La potencia requerida para el proceso de remoción fue de 140,65 W, además, el torque obtenido fue de 38,43 N·m. En el cálculo de las tensiones de Von Mises se obtuvo un máximo de 49,1 N, inferior al límite elástico del material. Asimismo, el máximo valor en el desplazamiento resultante se encuentra en el soporte de las chumaceras con 7,7·10-5 m, lo que demuestra que no existen deformaciones. Por último, los resultados del coeficiente de seguridad muestran valores entre 5,6 y 15, esto demuestra que la relación entre tensión última y tensión admisible están distantes.

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Improvement of waste tyre recycling technology based on a new tyre markings

Cited by 63 publications

References 26 publications

Sustainable tire supply chain network design and operations planning using a multi objective , scenario-based optimization approach

Sustainable tire supply chain network design and operations planning using a multi objective , scenario-based optimization approach

Untitled

Diseño de una máquina prototipo para la separación y remoción de partículas ferromagnéticas de neumáticos triturados

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