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System dynamics models for decision making in product multiple lifecycles
KTH, School of Industrial Engineering and Management (ITM), Production Engineering.ORCID iD: 0000-0002-6590-7514
KTH, School of Industrial Engineering and Management (ITM), Production Engineering, Machine and Process Technology.ORCID iD: 0000-0002-5960-2159
KTH, School of Industrial Engineering and Management (ITM), Production Engineering.
2015 (English)In: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 101, 20-33 p.Article in journal (Refereed) Published
Abstract [en]

The main drivers for adopting product multiple lifecycles are to gain ecological and economic advantages. However, in most of the cases it is not straight forward to estimate the potential ecological and economic gain that may result from adopting product multiple lifecycles. Even though many researchers have concluded that product multiple lifecycles result in gain, there are examples which indicate that the gain is often marginal or even none in many cases. The purpose of this research is to develop system dynamics models that can assist decision makers in assessing and analysing the potential gain of product multiple lifecycles considering the dynamics of material scarcity. The foundation of the research presented in this paper is laid based on literature review. System dynamics principles have been used for modelling and simulations have been done on Stella iThink platform. The data used in the models have been extracted from different reports published by World Steel Association and U.S. Geological Survey. Some of the data have been assumed based on expert estimation. The data on iron ore reserves, iron and steel productions and consumptions have been used in the models. This research presents the first system dynamics model for decision making in product multiple lifecycles which takes into consideration the dynamics of material scarcity. Physical unavailability and price of material are the two main factors that would drive product multiple lifecycles approach and more sustainable decisions can be made if it is done by taking holistic system approach over longer time horizon. For an enterprise it is perhaps not attractive to conserve a particular type of material through product multiple lifecycles approach which is naturally abundant but extremely important if the material becomes critical. An enterprise could through engineering, proper business model and marketing may increase the share of multiple lifecycle products which eventually would help the enterprise to reduce its dependency on critical materials.

Place, publisher, year, edition, pages
2015. Vol. 101, 20-33 p.
Keyword [en]
Material criticality, Multiple-lifecycle, Resource conservation, Resource scarcity, Resources policy, System dynamic
National Category
Environmental Sciences Economics and Business
Identifiers
URN: urn:nbn:se:kth:diva-170238DOI: 10.1016/j.resconrec.2015.05.002ISI: 000358970100003Scopus ID: 2-s2.0-84930644712OAI: oai:DiVA.org:kth-170238DiVA: diva2:832181
Funder
EU, FP7, Seventh Framework Programme, 603843
Note

QC 20150630

Available from: 2015-06-30 Created: 2015-06-29 Last updated: 2017-12-04Bibliographically approved
In thesis
1. Circular Manufacturing Systems: A development framework with analysis methods and tools for implementation
Open this publication in new window or tab >>Circular Manufacturing Systems: A development framework with analysis methods and tools for implementation
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The society today lives on the philosophy of ‘take-make-use-dispose.’ In the long run, this is not sustainable as the natural resources and the waste carrying capacity of the earth are limited. Therefore, it is essential to reduce dependency on the natural resources by decoupling the growth from the consumption. In this venture, both the society and the manufacturing industry have a vital role to play. The society needs to shift towards Circular Economy that rests upon the philosophy of ‘take-make-use-reuse’ and the manufacturing industry has to be a major stakeholder in this shift. Despite being proven to be both economically and environmentally beneficial, successful examples of circular systems are few today. This is primarily due to two reasons; firstly, there is a lack of systemic and systematic approach to guide industries and secondly, there is a lack of analysis methods and tools that are capable of assessing different aspects of circular manufacturing systems. Taking on to these challenges, the objective of this research is to bring forward a framework with methods and decision support tools that are essential to implement circular manufacturing systems. The initial conceptual framework with the systemic approach is developed based on extensive review and analysis of research, which is further adapted for industrial implementation. Systematic analysis methods, decision support and implementation tools are developed to facilitate this adaptation. This development has been supported by four cases from diverse manufacturing sectors. Behind each decision support tool, there are analysis methods built upon mainly system dynamics principles. These tools are based on simulation platforms called Stella and Anylogic. Among other things, these tools are capable of assessing the performance of closed-loop supply chains, consequences of resource scarcity, potential gains from resource conservation and overall economic and environmental performance of circular manufacturing systems.

Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2017. 120 p.
Series
TRITA-IIP, ISSN 1650-1888 ; 05
Keyword
Circular economy, circular manufacturing systems, resource conservative manufacturing, ResCoM, system dynamics
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Production Engineering
Identifiers
urn:nbn:se:kth:diva-207470 (URN)978-91-7729-403-0 (ISBN)
Public defence
2017-06-08, Brinellsalen M311, Brinellvägen 68, Stockholm, 10:00 (English)
Opponent
Supervisors
Projects
ResCoM: Resource Conservative Manufacturing- transforming waste into high value resource through closed-loop product systems
Funder
EU, FP7, Seventh Framework Programme, 603843
Note

QC 20170522

Available from: 2017-05-22 Created: 2017-05-19 Last updated: 2017-05-22Bibliographically approved

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Abdullah Asif, Farazee MohammadRashid, Amir

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