Modeling of a logistics network for wood flows from by-products and cascade utilization
eBook - PDF

Modeling of a logistics network for wood flows from by-products and cascade utilization

,
  1. 192 pages
  2. English
  3. PDF
  4. Available on iOS & Android
eBook - PDF

Modeling of a logistics network for wood flows from by-products and cascade utilization

,

About this book

Waste Wood and wood by-products have the potential to become attractive alternative sources of raw materials. Their efficient use is important due to the rising demand and limited supply of forest wood. Cascade utilization is gaining interest as a strategy to bridge the gap between rising wood demand and fresh wood availability. However, the economic and environmental impacts of a cascading system for wood-based products are not fully known. In this work, an investigation is conducted to determine the consequences of cascade utilization for the economic and environmental performance of logistics networks for wood flows. Two case studies in Lower Saxony consider five wood products, including medium density fiber (MDF), oriented strand board (OSB), particleboard, coated paper, and wood pellets. In the first case study, an approach for decision support is developed that consists of a mixed-integer linear programming (MILP) model. In the first case study, the MILP model is used for minimizing the costs of the logistics network for three scenarios. Then the UMBERTO software is applied to determine the quantity of CO2e of the minimized logistics network. In the second case study, the MILP model is enhanced using two objective functions, as cost and global warming potential (GWP) are considered simultaneously. In this case study, it is observed that environmental parameters such as CO2 emissions can also be implemented in the MILP. The utilization of a multi-objective optimization model brings new perspectives (the trade-off between two contradictory objective functions, for instance) in comparison to the first case study, in which CO2 is calculated as an off-line step after logistics costs are minimized. Altholz und Holz-Nebenprodukte besitzen das Potenzial, attraktive, alternative Rohstoffquellen zu werden. Ihre effiziente Nutzung ist von hoher Relevanz, da die Nachfrage nach Holz steigt und die Versorgung mit Holz aus WĂ€ldern begrenzt ist. Um die LĂŒcke zwischen der wachsenden Holznachfrage und - verfĂŒgbarkeit zu ĂŒberbrĂŒcken, ist die Kaskadennutzung eine Strategie, welche zunehmendes Interesse erfĂ€hrt. Allerdings sind die wirtschaftlichen und ökologischen Auswirkungen eines Kaskadensystems fĂŒr Holzprodukte nicht vollstĂ€ndig bekannt. In dieser Arbeit wird eine Untersuchung durchgefĂŒhrt, um die Folgen der Kaskadennutzung auf die Wirtschafts - und Umweltleistung von Logistiknetzwerken fĂŒr Holzströme zu bestimmen. Im Rahmen von zwei Fallstudien in Niedersachsen werden fĂŒnf Holzprodukte, einschließlich mitteldichten Fasern (MDF), OSB-Platten (OSB), Spanplatten, beschichtetem Papier und Holz-Pellets betrachtet. In der ersten Fallstudie wird ein Ansatz zur EntscheidungsunterstĂŒtzung entwickelt, der aus einem Mixed-Integer Linear Programming (MILP)-Modell besteht. Das MILP-Modell wird zuerst in drei verschiedenen Szenarien zur Minimierung der Logistikkosten angewendet. Mithilfe der UMBERTO-Software wird anschließend die Menge von CO2e bestimmt. In der zweiten Fallstudie wird das Modell fĂŒr zwei Zielfunktionen weiterentwickelt und eingesetzt, bei denen die Kosten und das Treibhausgaspotenzial gleichzeitig betrachtet werden. Diese Fallstudie zeigt, dass auch Umweltparameter wie CO2-Emissionen mit MILP umgesetzt werden können. Die Verwendung eines Mehrzieloptimierungsmodells ermöglicht die Betrachtung neuer Perspektiven (zum Beispiel den Trade-off zwischen zwei widersprĂŒchlichen Zielfunktionen) im Vergleich zur ersten Fallstudie, in welcher CO2-Emissionen in einem Offline-Schritt nach der Minimierung der Logistikkosten minimiert werden.

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Information

Year
2016
Print ISBN
9783736992672
eBook ISBN
9783736982673
Edition
1

Table of contents

  1. Acknowledgment
  2. Table of Contents
  3. List of Figures
  4. List of Tables
  5. List of Abbreviations
  6. List of Symbols
  7. 1 Introduction
  8. 2 Wood Resources and their Potential Cascade Uses
  9. 3 Modeling of the Logistics Network for Wood Utilization in Cascade versus Utilization of Fresh Wood
  10. 4 Mathematical and Environmental Modeling of a Wood Logistics Network
  11. 5 Sustainable Logistics Network for Wood Flow Considering Cascade Utilization (Case Study 1)
  12. 6 Utilization of Wood Resources in a Logistics Network for Wood Products Taking Economic and Environmental Parameters into Account (Case Study 2)
  13. 7 Conclusion and Outlook for Further Work
  14. 8 Summary
  15. References
  16. Appendix