Browsing by Author "Mudgal, Devanshu"

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    Approach to value stream mapping for make-to-order manufacturing
    (Elsevier, 2020-09-22) Mudgal, Devanshu; Pagone, Emanuele; Salonitis, Konstantinos
    This paper presents a new approach to the Value Stream Mapping (VSM), a proven tool of Lean Manufacturing (LM) in a Make-To-Order (MTO) manufacturing environment. The use of VSM in mass production has proven to be successful due to the predictable volume and repetitive product type. Within a MTO environment the product is tailored to specific requirements and varying volumes make it hard to balance production causing lean waste. The approach combines the classic VSM technique with commonality analysis to get a better understanding of the processes. Author illustrates this approach using a case study. Using VSM for MTO requires some changes to capture the attributes of product families required at different frequencies and volumes successfully
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    Finding a greener, cost-effective and colour-based partial or complete replacement to White Portland Cement for cast stone production using TOPSIS
    (Springer, 2024-03-01) Mudgal, Devanshu; Pagone, Emanuele; Salonitis, Konstantinos; Scholz, Steffen G.; Howlett, Robert J.; Setchi, Rossi
    As per recent research, the use of White Portland Cement (WPC) in the production of cast stone results in significant carbon emissions. This study aims to identify alternatives to WPC that have lower carbon emissions and are cost-effective. A literature review was performed, and data were gathered on WPC and its alternatives. Based on the literature review, five alternatives were identified. An investigation was conducted to determine the most suitable replacement for WPC based on four criteria. Automatically weighted TOPSIS which is a Multi-Criteria Decision Analysis (MCDA) was used to identify the optimal substitute for WPC. The results of the analysis were used to make a final recommendation. Overall, this study provides valuable insights into the potential substitutes for WPC in the production of cast stone, which could help to reduce carbon emissions and promote greater sustainability in the construction industry.
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    Material selection for ornamental products based on carbon footprint and embodied water
    (Springer, 2022-09-16) Mudgal, Devanshu; Pagone, Emanuele; Salonitis, Konstantinos
    This paper analyses and compares the Life Cycle Assessment of ceramics, bricks, steel, clay, and polypropylene with cast stone widely used in architectural ornaments. Architectural ornaments include, for example, statues, Georgian architectural window surrounds and balustrading etc. A methodology was proposed within this study which was verified after being applied to the case study. The Life Cycle Assessment of all the materials was performed from “cradle-to-gate” for a kilogram of each material. The transportation of the finished goods is also included in this study as that is a crucial part of a business. The selected materials were compared based on the overall carbon dioxide equivalent, water, and energy consumption during the general manufacturing process. Materials were plotted at the end of this study based on each parameter. Concrete showed the lowest contribution towards the carbon dioxide equivalent whereas cast stone had the lowest water consumption. Polypropylene had the highest energy consumption. A few recommendations to make cast stone greener were also made at the end of this paper.
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    Selecting sustainable packaging materials and strategies: a holistic approach considering whole life cycle and customer preferences
    (Elsevier, 2024-11-25) Mudgal, Devanshu; Pagone, Emanuele; Salonitis, Konstantinos
    With the increasing public awareness of packaging and the environmental impact caused by it, companies are driving their businesses to introduce and promote practices that help ease the negative impact of packaging on the environment. Studies done on consumer behaviour show that decisions nowadays are influenced by sustainability. Yet, companies struggle with changing practices and justifying adopting environmentally friendly packaging materials. The current paper presents a holistic approach, addressing the need for identifying, assessing, and selecting sustainable materials for packaging applications. The Kano model prioritises features that are then used with Ashby plots for identifying alternative materials. Life cycle assessment, as well as life cycle costing, are used for assessing the environmental and financial impact of the use of such materials. Automatically weighted Multi-Criteria Decision-Making Analysis (MCDA) is used to select the most appropriate packaging material. This methodology provides a combinatorial ranking for each criterion set by four pre-defined weight distributions for Technique for Order Preference by Similarity to the Ideal Solution (TOPSIS). The proposed methodology allows for a systematic and holistic design process when deciding on packaging materials for any product. The methodology is validated for the case of packaging weather-sensitive cast stone products and carbonated drinks. In cast stone, three packaging materials are ranked for pallets based on their attributes. Similarly, for carbonated drinks, three packaging materials are recommended at the end of the study.
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    Utilizing waste cast stone: compression strength analysis and implication for suitable cast stone production
    (GCSM, 2024-10-11) Mudgal, Devanshu; Pagone, Emanuele; Salonitis, Konstantinos
    In recent years, the concept of circular economy has become increasingly popular as a sustainable approach to resource management. The present study explores the potential of reusing cast stone waste generated during the production process, in alignment with the principles of the circular economy. Cast stone waste typically goes to landfill sites discarded as a byproduct and poses environmental challenges due to its non-biodegradable nature. This work focuses on reusing this waste material as a viable resource, thus mitigating the environmental impact. Through a series of compression test experiments on cast stone, the presented study investigates the effectiveness of incorporating cast stone waste into production. The findings of this study contribute to cost reduction in raw material and waste minimization promoting economic and environmental benefits.