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Open AccessArticle

Disposal and Recycle Economic Assessment for Aircraft and Engine End of Life Solution Evaluation

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School of Power and Energy, Aerospace Propulsion, Northwestern Polytechnical University, Xi’an 710072, China
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School of Engineering, Aerospace Engineering and Aviation, RMIT University, Melbourne, VIC 3053, Australia
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Faculty of Aerospace Engineering, Air Transport and Operations, Delft University of Technology, 2629 HS Delft, The Netherlands
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(2), 522; https://doi.org/10.3390/app10020522
Received: 12 November 2019 / Revised: 29 December 2019 / Accepted: 30 December 2019 / Published: 10 January 2020
(This article belongs to the Section Applied Industrial Technologies)
The present study proposes an economic indicator to support the evaluation of aircraft End of Life (EoL) strategies in view of the increasing demand with regards to aircraft decommissioning. This indicator can be used to evaluate an economic performance and to facilitate the trade-off studies among different strategies. First, Disposal and Recycle (D&R) scenarios related to stakeholders are investigated to identify the core concepts for the economic evaluation. Next, we extracted the aircraft D&R process from various real-life practices. In order to obtain the economic measure for the engineering process, a method of estimating the D&R cost and values are developed by integrating product, process and cost properties. This analysis is demonstrated on an averaged data set and two EoL aircraft cases. In addition, sensitivity analysis is performed to evaluate the impact of the D&R cost, residual value, and salvage value. Results show that the disassembly and dismantling of an aircraft engine possesses relatively more economic gains than that for the aircraft. The main factors influencing the proposed D&R economic indicator are the salvage value and D&R cost for economically efficient D&R cases. In addition, delaying the disposal and recycle process for EoL aircraft can lead to economically unfavorable solutions. The economic indicator combined with the evaluation methods is widely applicable for evaluations of engineering products EoL solutions, and implies a significant contribution of this research to decision making for such complex systems in terms sustainable policy. View Full-Text
Keywords: aircraft disposal and recycle process; End of Life (EoL); aircraft and aircraft engine Life Cycle Analysis (LCA); engineering cost and value analysis; disposal and recycle economic indicator aircraft disposal and recycle process; End of Life (EoL); aircraft and aircraft engine Life Cycle Analysis (LCA); engineering cost and value analysis; disposal and recycle economic indicator
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Zhao, X.; Verhagen, W.J.; Curran, R. Disposal and Recycle Economic Assessment for Aircraft and Engine End of Life Solution Evaluation. Appl. Sci. 2020, 10, 522.

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