Now showing items 1-16 of 16

    • A MILP scheduling model for multi-stage batch plants 

      Kopanos, Georgios; Puigjaner Corbella, Lluís (Elsevier, 2009-06-15)
      Conference lecture
      Open Access
      In the current work, a new precedence-based mixed integer linear programming (MILP) scheduling framework, based on a continuous-time representation, is developed for the scheduling in multi-stage batch plants. Advantages ...
    • Costs for rescheduling actions: a critical issue for reducing the gap between scheduling theory and practice 

      Kopanos, Georgios; Capón García, Elisabet; Espuña Camarasa, Antonio; Puigjaner Corbella, Lluís (2008-11-19)
      Article
      Restricted access - publisher's policy
      Rescheduling programmed tasks, when an unexpected event occurs, may affect the smooth operation of the plant if the initial schedule is not taken into account. This work addresses the penalty incurred by rescheduling actions ...
    • Efficient mathematical frameworks for detailed production scheduling in food processing industries 

      Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (Pergamon Press, 2012)
      Article
      Restricted access - publisher's policy
      The production scheduling of a real-world multistage food process is considered in this work. An efficient mixed integer programming (MIP) continuous-time model is proposed to address the production problem under study. ...
    • Extendiendo los Horizontes Productivos frente a la Paradoja de la Integración - EHMAN 

      Espuña Camarasa, Antonio; Velo García, Enrique; Roca Mussons, Francisco Javier; Perales Lorente, José Francisco; Nougués, José María; Gallego Piñol, Eva; Puigjaner Corbella, Lluís; Pérez Moya, Montserrat; Graells Sobré, Moisès; Kopanos, Georgios; Pérez Fortes, María del Mar; Capón García, Elisabet; Monroy, Isaac; Silvente Saiz, Javier; Moreno Benito, Marta; Shokry Abdel-aleem, Ahmed; Bojarski, Aarón David (2010-01-01 / 2013-06-30)
      Website
      Open Access
      El proyecto EHMAN ha abordado la optimización global de un sistema productivo (EWMO) planteando la necesidad de una coherencia entre los modelos matemáticos y las metodologías habitualmente utilizados por separado para ...
    • MIP-based decomposition strategies for large-scale scheduling problems in multiproduct multistage batch plants: A benchmark scheduling problem of the pharmaceutical industry 

      Kopanos, Georgios; Méndez, Carlos Alberto; Puigjaner Corbella, Lluís (Elsevier, 2010-06-16)
      Article
      Restricted access - publisher's policy
      An efficient systematic iterative solution strategy for solving real-world scheduling problems in multiproduct multistage batch plants is presented. Since the proposed method has its core a mathematical model, two alternative ...
    • Optimal production scheculing and lost-sizing in yogurt production lines 

      Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (2010)
      Conference lecture
      Restricted access - publisher's policy
      The lot-sizing and production scheduling problem in a real-life multi-product yoghurt production line is addressed. A new discrete/continuous time representation mixedinteger linear programming model, based on the definition ...
    • Optimal production scheduling and lot-sizing in diary plants: the yogurt production line 

      Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (American Chemical Society (ACS), 2009-12-04)
      Article
      Restricted access - publisher's policy
      The lot-sizing and production scheduling problem in a multiproduct yogurt production line of a real-life dairy plant is addressed in this work. A new mixed discrete/ continuous-time mixed-integer linear programming model, ...
    • Production planning and scheduling of parallel continuous processes with product families 

      Kopanos, Georgios; Puigjaner Corbella, Lluís; Maravelias, Christos T. (American Chemical Society (ACS), 2011)
      Article
      Open Access
      The goal of this paper is the development of a mixed integer programming formulation for the production planning and scheduling of parallel (single-stage) continuous processes in the presence of sequence-dependent switchover ...
    • Production scheduling in multiproduct multistage semicontinuous food processes 

      Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (American Chemical Society (ACS), 2011-04-10)
      Article
      Restricted access - publisher's policy
      This works presents a novel mixed-integer programming framework and a solution strategy for the optimal production scheduling of multiproduct and multistage food process industries, such as ice-cream production facilities, ...
    • Resource-constrained production planning in semicontinuous food industries 

      Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (Pergamon Press, 2011-12-14)
      Article
      Restricted access - publisher's policy
      The resource-constrained production planning problem in semicontinuous multiproduct food industries is addressed. In particular, the case of yogurt production, a representative food process, in a real-life dairy facility ...
    • Scheduling and lot-sizing in the dairy industry: the yoghurt production case 

      Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (2009-11-08)
      Conference lecture
      Open Access
      In this work, a continuous-time Mixed-Integer Linear Programming model (MILP) is developed for the short-term scheduling and lot-sizing problem in a multi-product yoghurt production line of a real-life dairy plant. The ...
    • Short-term scheduling in multi-stage batch plants through Lagrangean decomposition. 

      Kopanos, Georgios; Lainez Aguirre, José Miguel; Puigjaner Corbella, Lluís (2009-11-08)
      Conference lecture
      Open Access
      In this work, a continuous-time Mixed-Integer Linear Programming (MILP) model for the short-term scheduling in multi-stage batch plants is used. The MILP model accounts for ready unit times, release order times, ...
    • Simultaneous production and logistics operations planning in semicontinuous food industries 

      Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (2012)
      Article
      Restricted access - publisher's policy
      The production and logistics operations planning in real-life single- or multi-site semicontinuous food industries is addressed in this work. A discrete/continuous-time mixed integer programming model, based on the definition ...
    • Supply chain design considering operational level details 

      Lainez Aguirre, José Miguel; Kopanos, Georgios; Espuña Camarasa, Antonio; Puigjaner Corbella, Lluís (2009-11-08)
      Conference lecture
      Open Access
      In this paper we apply attainable region approach to the integration of SC hierarchical levels. The main idea behind this kind of framework is to find a new set of constraints that adequately represent the scheduling ...
    • Techniques for the efficient solution of Large-scale production scheduling & planning problems in the process industries 

      Kopanos, Georgios (Universitat Politècnica de Catalunya, 2011-04-14)
      Doctoral thesis
      Open Access
      Nowadays, every company seeks to optimize its Supply Chain (SC) in response to competitive pressures or to acquire advantage of new flexibility in the restrictions on world trade. The process systems engineering research ...
    • Towards an ontological infrastructure for chemical batch process management 

      Muñoz Mata, Edrisi; Kopanos, Georgios; Espuña Camarasa, Antonio; Puigjaner Corbella, Lluís (Elsevier, 2009)
      Conference lecture
      Restricted access - publisher's policy
      Chemical batch process management, regardless of the level where its analysis is focused (such as pre-formulation and new process development, supply chain management, scheduling, process control, fault analysis, etc.) ...