Sensitivity analysis for justification of utilising special purpose machine tools in the presence of uncertain parameters

Vafadar, Ana; Hayward, Kevin; Tolouei‐Rad, Majid

doi:10.1080/00207543.2017.1308032

Cited by 6 publications

(4 citation statements)

References 25 publications

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“…The analysis demonstrated that the unit production cost is inversely proportional to profit while the selling price per unit is directly proportional to profit. The results are consistent with several authors [37] [38] [39] included who demonstrated that sensitivity analysis has a significant impact on assessing the effects of applying a certain action throughout a process. As a result, its use is critical in the decision-making process.…”

Section: Presentation Of Results and Discussionsupporting

confidence: 92%

A Comprehensive Economic Assessment of Producing Biodiesel Derived from Used Cooking Oil Using the BioPro380 EX

Matome¹,

Ketlogetswe²,

Mmopelwa³

2022

EPE

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The authors performed economic assessment of producing biodiesel at pilot scale using used cooking oil as feed-oil in a Bio-Pro 380 EX biodiesel reactor. The overall results suggest that the biodiesel production using used cooking oil is a viable project even at large or medium scale. The payback period for producing biodiesel at a pilot scale of 31,320 liters per year was 1.5 years, which was 1 month longer than the payback period for a large plant capacity of 66,000 liters per year. The study demonstrated that the unit selling price and unit production cost are sensitive to the economic feasibility of biodiesel production, since price variations of BWP 1 result in at least a 13% increase and 12% decrease in profit, respectively. The study further revealed that feed-oil (used cooking oil) was the most expensive among all the inputs accounting for 61%, followed by methanol and direct labour with 19% and 13% respectively. The overall energy recorded to produce approximately 360 liters of biodiesel contributed to 2% only, suggesting that Bio-Pro 380 EX biodiesel reactor is relatively a low energy intensity processor. The situation is suitable for the promotion of biodiesel particularly in countries where initiatives to stimulate the development of biofuels are at its infant stage Botswana included.

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Section: Presentation Of Results and Discussionsupporting

confidence: 92%

A Comprehensive Economic Assessment of Producing Biodiesel Derived from Used Cooking Oil Using the BioPro380 EX

Matome¹,

Ketlogetswe²,

Mmopelwa³

2022

EPE

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“…Despite the generalizability of RMSs' definition, many authors, when referring to RMSs, limited their focus on specific systems. Indeed, RMSs' components are Computerized Numerically Controlled (CNC) machines, Reconfigurable Machines (RMs), Reconfigurable Machine Tools (RMTs), inspection machines, material-handling devices and systems (ElMaraghy, 2006;Bi et al, 2008b;Essafi, Delorme and Dolgui, 2012;Haddou Benderbal, Dahane and Benyoucef, 2017;Prasad and Jayswal, 2017;Borisovsky, Delorme and Dolgui, 2014;Vafadar, Hayward and Tolouei-Rad, 2017).…”

Section: Introductionmentioning

confidence: 99%

A framework to manage reconfigurability in manufacturing

Napoleone

Pozzetti

Macchi

2018

International Journal of Production Research

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Nowadays, manufacturing firms are dealing with the unpredictability of market requirements and the frequent changes induced by technological innovation. For this reason, firms are more and more addressing the need to be responsive at an affordable cost. To do so, they are required to develop a capability called reconfigurability. This paper is a review of the existing literature because the current need makes interesting to reflect on the state of the art of reconfigurability as a concept. This reflection has led to focus on reconfigurability characteristics for both their relevance and their relationships with managerial decisions in manufacturing. To this end, a framework has been proposed. It is based on system lifecycle and production levels. These two elements have been deduced from literature and identified as relevant dimensions for decision making.

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“…Therefore, it is critical to identify all costs including the above items as well as any hidden elements related to the production of metal components for successful implementation. In addition, the development of a cost analysis model that estimates the production costs of a metal AM produced part versus a traditionally manufactured product is required, in such a model, using a sensitivity analysis to investigate various alternatives in the presence of uncertainty may lead to more robust results [176]. Impacts on supply chains, and the potential cost benefits of on demand production should also be factored into such models when assessing particular use cases [177].…”

Section: Metal Am Costsmentioning

confidence: 99%

Advances in Metal Additive Manufacturing: A Review of Common Processes, Industrial Applications, and Current Challenges

et al. 2021

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In recent years, Additive Manufacturing (AM), also called 3D printing, has been expanding into several industrial sectors due to the technology providing opportunities in terms of improved functionality, productivity, and competitiveness. While metal AM technologies have almost unlimited potential, and the range of applications has increased in recent years, industries have faced challenges in the adoption of these technologies and coping with a turbulent market. Despite the extensive work that has been completed on the properties of metal AM materials, there is still a need of a robust understanding of processes, challenges, application-specific needs, and considerations associated with these technologies. Therefore, the goal of this study is to present a comprehensive review of the most common metal AM technologies, an exploration of metal AM advancements, and industrial applications for the different AM technologies across various industry sectors. This study also outlines current limitations and challenges, which prevent industries to fully benefit from the metal AM opportunities, including production volume, standards compliance, post processing, product quality, maintenance, and materials range. Overall, this paper provides a survey as the benchmark for future industrial applications and research and development projects, in order to assist industries in selecting a suitable AM technology for their application.

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Sensitivity analysis for justification of utilising special purpose machine tools in the presence of uncertain parameters

Cited by 6 publications

References 25 publications

A Comprehensive Economic Assessment of Producing Biodiesel Derived from Used Cooking Oil Using the BioPro380 EX

A Comprehensive Economic Assessment of Producing Biodiesel Derived from Used Cooking Oil Using the BioPro380 EX

A framework to manage reconfigurability in manufacturing

Advances in Metal Additive Manufacturing: A Review of Common Processes, Industrial Applications, and Current Challenges

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