Facultad Regional Santa Fe

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Author: search.filters.author.Corsano, GabrielaSubject: search.filters.subject.Cadena de suministros

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Now showing 1 - 4 of 4
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    Sustainability in the forest supply chain considering the efficient use of residues and byproducts
    (2015) Corsano, Gabriela; Campanella, Sandra; Montagna, Jorge Marcelo
    Supply chain (SC) globally integrates production units with raw material sources and customers, and coordinates all input and output flows (materials, information, finance, etc.) so that the products are produced and distributed in the right amounts, in appropriate locations and at the right time. These activities involve complex tasks that have different tradeoffs between the involved actors and require significant effort to coordinate the common actions. In particular, the forest SC has many heterogeneous participants, therefore, its integration is a challenging issue. One of the main aspects in the forest industry is the huge amount of generated residues and by-products generating through the wood mechanical transformation, from the harvest to the final product production. The residues use has not receive much attention, and its appropriate and efficient use is affected by many factors, as big involved volume, which increases the transportation cost. Nowadays, residues are burned in order to avoid its accumulation. This generates smoke, ash and gases impacting the environment, increasing the greenhouse effect and modifying the landscape. With the aim of avoiding these drawbacks, in this work a mixed integer linear programming (MILP) model for the optimal design and planning of the forest SC is proposed. The formulation considers different production alternatives, with the objective of maximizing the net benefit, generating the sustainable design of the overall network. This work is developed considering the particular characteristics of the Argentinean forest industry, but it can be easily adapted for other geographical regions. The proposed approach represents a useful tool for decision making and analysis of different production-distribution scenarios of sustainable SCs.
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    Impacto del uso de residuos en el diseño y operación de una cadena de suministros para la producción de etanol
    (2015) Montagna, Jorge Marcelo; Fumero, Yanina; Vanzetti, Nicolás; Corsano, Gabriela
    En este trabajo se desarrolla un modelo multiobjetivo (maximizar ganancias-minimizar impacto ambiental) para el diseño óptimo de una cadena de suministro para la producción de etanol a partir de mieles provenientes de diversas plantas de azúcar. Simultáneamente se obtiene el diseño de cada planta instalada y la programación detallada de su producción, esto último modelado mediante campañas mixtas de producción. El impacto ambiental causado por la producción de etanol es medido a través de los efluentes generados en cada planta. Para minimizar este impacto, se propone producir levaduras de dos tipos. De esta forma, el problema multiobjetivo es resuelto maximizando la función económica para diferentes valores permitidos de efluentes, generando un conjunto de soluciones posibles. A través de un caso de estudio, se muestra la potencialidad del enfoque propuesto, que sirve como herramienta al momento de diseñar una cadena sustentable y permite analizar diferentes escenarios.
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    Diseño óptimo de cadenas de suministros considerando criterios ambientales
    (2014) Montagna, Jorge Marcelo; Corsano, Gabriela; Campanella, Sandra
    En el presente trabajo se propone un modelo multiobjetivo de pro-gramación mixta entera lineal para el diseño sustentable de la Cadena de Sumi-nistros (CS). Se desea determinar el diseño óptimo de la CS teniendo en cuenta las variables económicas y ambientales mediante la metodología "epsilon cons-traint". Para la formulación se considera una CS de 4 niveles: materia prima, plantas de producción, centros de distribución y consumidores. Para introducir la variable ambiental dentro del diseño se propone el uso de una metodología de Evaluación de Impacto Ambiental (EIA) del tipo "checklist" o "lista de che-queo", como una primera aproximación al estudio del impacto ambiental. Se plantea el análisis ambiental de manera desagregada a lo largo de la CS. El modelo propuesto se aplica al diseño de una CS de producción de etanol a partir de caña de azúcar y miel obtenida a partir de ésta.
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    Supply chain planning considering the production of defective products
    (2014) Corsano, Gabriela; Montagna, Jorge Marcelo; Ferrara, Miguel Angel
    When the markets become more competitive, the customer satisfac-tion level starts to be a more important factor. One of the principal components to achieve the customer satisfaction is to minimize the amount of defective or non-standard products. Therefore, it is convenient to consider decisions about product quality when the supply chain is planned. In this work, a mixed integer linear programming mathematical (MILP) model is developed for the supply chain planning, which determines impact of different decisions over the ex-pected number of defective products. These decisions are: supplier selection, inbound control methods selection, and production process selection. The ob-jective function is the cost minimization associated to the supply chain plan-ning.