Samira Keivanpour

The sustainable worldwide offshore wind energy potential: A systematic review

The offshore wind industry is expanding rapidly around the world due to several factors enabling this source of renewable energy. Stronger wind resources in offshore areas, lack of social and geographical constraints related to onshore wind power, the evolution of technology, and increasing demand for electricity in coastal regions as a result of a massive increase in population are some of the factors favoring the use of wind energy. The assessment of the potential global capacity that considers the different economic, environmental, and social factors and the dynamics of market, policy, and technology are vital for estimating the competitiveness of offshore wind energy in the future energy profile. There are several studies and technical reports that evaluate the potential of offshore wind energy in different countries or regions. They used a different source of data, metrics, and quantitative approaches in appraising the potential offshore wind power capacity and its cost efficiency. The critical facto...

Modelling end of life phase of the complex products: the case of end of life aircraft

There are different approaches to modelling the products at the End of Life (EOL), including closed loop approach, the ladder of lansink and material flow. The sustainability principles and the complexity of the products may affect the choice of modelling type. The life cycle costs, several subsystems and the interaction between design features, construction, technology, suppliers and legislation affect the degree of complexity of the products. Hence, developing appropriate strategies are required for modelling EOL phase of the complex products. This article presents strategies for modelling EOL phase of complex products considering sustainability tools, EOL phase models and the characteristics of these products. An ingenerated approach is proposed to address the four essential aspects of the complex product at the EOL: operational, tactical, strategic and sustainability. The case of aircraft at the EOL is presented to highlight the application of the proposed approach.

End of life aircrafts recovery and green supply chain (a conceptual framework for addressing opportunities and challenges)

Purpose – This paper aims to address the different aspects of end-of-life (EOL) aircraft problems and their effects on original manufacturer’s supply chain. Aircraft manufacturers, in the greener aviation context, need to care about the footprint of planes at the EOL. Considering the challenges in EOL aircraft recovery, the reverse logistics and green supply chain solutions in the other industrial sections cannot be applied in the aerospace industry. A conceptual framework with four elements, supply chain competency, governance policy, relationship in supply chain and aerospace industry context, provides a basis for assessing the opportunities and challenges of the green supply chain in this industry. Design/methodology/approach – The basic research method utilized in this paper is the literature review. The literature review is a research methodology that includes examining books, journals, conference proceedings and dissertations for available information on the area of research. The research area regar...

End-of-life aircraft treatment in the context of sustainable development, lean management, and global business

ABSTRACT Dealing with retired aircraft taking into account the environmental, social, and economic impacts is emerging as an air transportation problem for the near future. The players involved in the problem wish to solve this challenge in a systematic way to benefit from the value extracted from the core activities of the end-of-life (EoL) aircraft treatment, decrease the environmental impacts, and at the same time maximize the social value. This paper proposes a holistic approach to EoL aircraft treatment considering lean management, sustainable development, and the global business environment. An integrated optimization framework is proposed to support decision-making at both the strategic and managerial levels. The flexibility of the framework makes it possible to compare different business models, dismantling strategies, and network structures that impact the efficiency, stability, and leanness of the recovery network. A solution methodology based on the joint application of fuzzy interactive approach and genetic algorithm is introduced. The application perspective and guidelines for pilot study are also provided. To the best of our knowledge, this is the first time that recovery of EoL aircraft is considered based on three aspects of sustainability, lean, and global business. Therefore, this study provides many promising perspectives in this context to enrich the literature of EoL aircraft as a new aviation industry challenge and opportunity.

Strategic eco-design map of the complex products: toward visualisation of the design for environment

With growing sustainability and environmental concerns regarding the products, decision-makers and business managers need to integrate sustainability into business strategies and support it via systematic business processes and decision support tools. With the integration of the eco-efficiency attributes to the product development, more data should be analysed in engineering design. This integration also increases the complexity of the design process due to the large volume of data processing and diversity of the different attributes and features of the products. In this paper, we used the stock market metaphor to develop a visual data mining approach to the strategic eco-design assessment of the complex products. We presented a fresh framework using clustering and visualisation techniques to analyse the eco-efficiency profile of the different modules, components and parts of a complex product, and provide an efficient data exploration tool for decision-makers to facilitate processing of eco-design attributes, and strategic objectives at the same time. An illustrative example is provided to show the procedure of the application and the effectiveness of the proposed approach.

Automobile manufacturers’ strategic choice in applying green practices: joint application of evolutionary game theory and fuzzy rule-based approach

Satisfying the end-of-life vehicle (ELV) legislations is essential for business activities in some markets. However, with the lack of similar regulations for the treatment of ELV, automotive manufacturers follow different green practices. These practices can be a complex task such as an eco-design strategy or issuing a guideline or manual for the end-of-life phase of the product. Each of these practices also has different impacts on the other players in the market. Several factors contribute to manufacturers’ gain as a result of applying green practices. The uncertainties in these features and the absence of data availability raise the difficulty in the manufacturers’ profit estimation. This paper proposes a new approach to analysing automotive manufacturers’ strategic choice in applying ELV practices considering the competitive advantages of performing these practices and the interaction between players. A joint application of evolutionary game theory and fuzzy rule-based approach is proposed to analyse the strategic behaviour of automotive manufacturers. The proposed model provides a simulation environment for testing the interaction of the different market factors and players’ action. The experimental design highlights the validity of the model and its implications. The result reveals that when we have two populations of players including the market leader in recycling initiatives and market reader; the market elements such as ‘elasticity of demand to price’ and ‘loyalty of consumers to market leader’ play an essential role in determining the stable strategy of the game.

Toward a projection model for estimation of end of life aircrafts

Dealing with retired aircrafts considering the environmental, social and economic impacts is becoming an emerging problem in the aviation industry in near future. Estimation of the volume of end-of-life aircrafts (ELAs) has a great impact on the implementing of the sustainable policies and passing new regulations. There is few research carried out about the prediction of the number of End of life vehicles. This study, with reviewing the existing models, addresses the challenges for estimation of retired aircrafts and proposes an integrated approach for prediction of ELAs.

Towards the Blockchain-Enabled Offshore Wind Energy Supply Chain

While the technology of offshore wind production is more or less mature, there are still many issues to be solved for mass production and deployment of wind farms at reasonable costs. Hence, one of the challenging topics in developing a supply-chain strategy of offshore wind energy is efficiency on the one hand and meeting the requirements of stability, flexibility, and adaptability from market, technology and policy perspectives on the other. Supply-chain management of offshore wind energy requires processing a large amount of data and effective traceability and visibility. Blockchain as a fresh technology could provide the solution for interoperability and collaboration among a number of suppliers dispersed all over the world. This paper seeks to discuss the opportunities of blockchain technology in upstream, midstream and downstream of offshore wind energy.

A Decision Model for Selecting the Optimum Oil Production Profile Using Multi Criteria Decision Making and Social Choice Theory

Applying a MCDM model has many benefits for decision makers in the course of oil field master development plans preparation and evaluation. In this study, a multi-criteria decision making model is proposed in order to achieve an optimum production profile. The most important criteria and parameters for selection of best production profile are identified. These parameters are derived by several interviews with Iranian oil Industry’s experts. The candidate alternatives for production profile are ranked using a combination of group decision making approach and social choice theory. The degree of group consensus is evaluated by using a statistic model to confirm the validity of decision making model.© 2014 ASME