Browsing by Author "Artingstall, James"

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    Energy flexibility in aerospace manufacturing: the case of low carbon intensity production
    (Elsevier, 2024-05-17) Haddad, Yousef; De Bonneval, Elena Galigny; Afy-Shararah, Mohamed; Carter, Joseph; Artingstall, James; Salonitis, Konstantinos
    In this paper, the prospects of energy flexibility in mitigating the environmental impact of aerospace manufacturing are explored. In collaboration with a UK-based aerospace manufacturing enterprise, demand response, in particular production time, is explored under different stochastic scenarios. This is done through a decision-support framework that consists of a stochastic discrete-event simulation model that tests different scenarios under a full factorial design of experiments framework. The simulation model tests various improvement strategies pertaining to prioritisation rules, production start-up rules, and operating hours. The model aids in scheduling energy-intensive processes, so the time of performing such processes can coincide with times of the day when the energy’s carbon intensity is at its lowest. The use case constitutes a family of aluminium structural aerospace components that are characterised by high production rate. Results demonstrate promising potential of the proposed approach, with the best-case scenario resulting in a 7% reduction in CO2e emissions. Analysis of the results demonstrate that operational decisions that do not require infrastructural changes or capital expenditures can contribute favourably to achieving net-zero targets. This research offers useful insights on leveraging operational short-term decisions to meet the aerospace manufacturing’s sector decarbonisation targets.
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    Evaluating LCA product families in an approach to determine baseline emissions within aerospace manufacturing
    (Elsevier, 2024-05-07) Cox, Rylan; Venkatapuram, Roopa Sai Reddy; Afy-Shararah, Mohamed; Carter, Joseph L.; Artingstall, James; Salonitis, Konstantinos
    This paper investigates a Life Cycle Assessment (LCA) based methodology to determine baseline emissions for an aerospace manufacturer. Aerospace manufacturing entails high complexity and low throughput of a vast array of components. Rather than establishing the environmental footprint through waste, electric, and gas data alone; an LCA cradle-to-gate approach extends to a product's raw material acquisition and shipment to provide a comprehensive set of environmental performance indicators. The approach combines several products that follow a similar manufacturing process and can be denoted as a product family. This paper discusses the ability that LCA product families must develop baseline emissions for products validated with a case study of an aerospace component. The methodology can be extended to other product families manufactured within the facility which when combined will accumulate to a site-wide environmental footprint. The paper further evaluates how this methodology can identify environmental hotspots at a process and product level. The aerospace component case study incorporates several manual and automated stages. This work aims to demonstrate the ease of determining baseline emissions using an LCA product family and enable aerospace manufacturing companies to adopt a similar approach to establishing environmental hotspots. This can drive strategic internal change for sustainable manufacturing aligning with company environmental, social, and financial frameworks.