Journal of advanced manufacturing and processing最新文献

{"title":"BRE-X Emissions Database for End-of-Life Scenarios of Selective Building Construction Materials to Enable Circular Economy in Construction","authors":"Naveen Kumar Muthumanickam,&nbsp;Swaroop Atnoorkar,&nbsp;Heather Goetsch,&nbsp;Michael Deru,&nbsp;Jordan Palmeri,&nbsp;Milad Ashtiani,&nbsp;Vaclav Hasik,&nbsp;Mirko Farnetani","doi":"10.1002/amp2.70018","DOIUrl":"10.1002/amp2.70018","url":null,"abstract":"<p>In the United States, construction and demolition debris predominately end up in landfills with minimal end-of-life Re-X (recover, recycle, reuse, etc.) scenarios, resulting in large environmental impacts and lost opportunities for material recovery. Except for concrete and metals, which seem to have a few well-defined end-of-life pathways, there seems to be a lack of well-documented end-of-life scenarios for other construction materials, let alone their emissions data. Hence, there is a need for documented end-of-life Re-X scenarios and end-of-life data of more building materials to motivate widespread use of Re-X strategies in building design. This paper outlines the efforts of the National Renewable Energy Laboratory, Carbon Leadership Forum, Building Transparency, and Skidmore, Owings &amp; Merrill to (a) create an open-access BRE-X (Building Re-X) end-of-life emissions database consisting of greenhouse gas emissions data associated with various end-of-life scenarios for a select list of high-impact building construction materials, and (b) integrate the BRE-X end-of-life emissions database with CAD/BIM/LCA tools for evaluating various end-of-life scenarios. The paper also presents a few existing life cycle inventory databases that contain sparse amounts of end-of-life data for a few construction materials and their limitations in terms of scaling and data consolidation. Finally, a sample of how the collected data can be ingested into whole-building LCA tools using open data formats and a public access link to the BRE-X end-of-life emissions database is also included.</p>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Techno-Economic Analysis of Polypropylene Recycling Through Catalytic Pyrolysis: FCC Catalysts in Batch Reactors","authors":"Farhad Zaker Hosseiny,&nbsp;Rui Shi","doi":"10.1002/amp2.70016","DOIUrl":"10.1002/amp2.70016","url":null,"abstract":"<p>The short lifespan of plastics, particularly in the packaging sector, results in rapid accumulation of plastic waste, with polypropylene being a major contributor. Chemical recycling is gaining increasing attention as a strategy in managing plastic waste, facilitating the transition from a linear to a circular economy. This study presents a comprehensive techno-economic analysis (TEA) of a polypropylene recycling process via pyrolysis designed for a facility in the Southern United States, processing 300 kt of waste annually. The process was modeled using Aspen Plus for energy and mass balance and Aspen Process Economic Analyzer for capital cost estimations, with additional manual calculations for operating costs. Economic viability was assessed through net present value (NPV), internal rate of return (IRR), and Minimum Fuel Selling Price (MFSP). Results show that recycling polypropylene via catalytic pyrolysis is economically viable, with a NPV exceeding $330 million and an IRR of 29.6% over a 30-year lifespan. The base case (300 kt/year) demonstrates the most promising financial viability, with high IRR and favorable ROI. Sensitivity analysis highlights the impact of market factors and operational costs on the economic viability of the process. Equipment cost breakdown shows that the “Storage” area, particularly the costs associated with hydrogen storage, is a significant contributor to the total capital investment. This finding highlights the importance of on-site hydrogen production to further reduce capital investments and operational costs.</p>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supply Chain Energy and Greenhouse Gas Analysis Using the Materials Flows Through Industry (MFI) Tool: Examination of Alternative Technology Scenarios for the U.S. Chemical Sector","authors":"Greg Avery,&nbsp;Alberta Carpenter","doi":"10.1002/amp2.70012","DOIUrl":"10.1002/amp2.70012","url":null,"abstract":"<p>Chemical manufacturing is a large and diverse sector of the U.S. economy, with products, fuels, and a wide assortment of materials used daily by both the public and businesses. Currently, several of the largest volume chemicals produced in the United States rely on fossil fuels as a feedstock, energy source, or both. The list of chemicals includes steam cracking products such as ethylene, propylene, benzene, and xylenes as well as products such as ammonia and methanol. The focus for this work is on platform chemicals that are both produced in the largest volume and have a high potential for subsequent processing into more specialized products. In this study, we explore several new pathways that reduce the overall energy consumption and greenhouse gas (GHG) emissions for each product. These pathways include energy efficiency measures applied to existing production methods, the use of bio-based fuels and/or feedstocks as new production methods, and electrification of high-energy-input stages within current production methods. Scenarios for energy demand and GHG reduction were conducted with the National Renewable Energy Laboratory's Materials Flows through Industry tool. Projections of the energy demand and GHG emissions in 2030 and 2050 are included, using grid composition projections from the NREL ReEDS model. The alternative scenarios selected showcase the effect of realistic changes the industry could make, focusing on technologies with a high level of technical readiness.</p>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using Material Flow Analysis to Identifying Global and Regional Opportunities for Zinc Circularity","authors":"Sabina Grund,&nbsp;Eric van Genderen,&nbsp;Martin van Leeuwen","doi":"10.1002/amp2.70020","DOIUrl":"10.1002/amp2.70020","url":null,"abstract":"<p>Today's sustainable development challenges are increasingly complex. Circularity, climate change, criticality, and the availability of raw materials at national through global scales are among the most dominant. Material Flow Analysis (MFA) has traditionally been used by industry sectors to identify impact opportunities and challenges associated with recycling. While using MFA for optimizing recycling flows is useful, combining MFA with product carbon footprints and geological resources/reserves is an important and essential step in developing decarbonization roadmaps for industry sectors or understanding future availability and criticality of a metal. Building on existing approaches for zinc, this paper combines MFA with other resources to (1) develop a decarbonization roadmap for the global zinc industry, (2) review scenarios of disruptive changes in value chains, and (3) investigate interdependencies in metals ecosystems.</p>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Textile Solid Waste End-Market in the Circular Economy: The Mirpur Cluster in Bangladesh","authors":"Abul Kalam Azad,&nbsp;Upama Nasrin Haq,&nbsp;Maeen Md Khairul Akter,&nbsp;Mohammad Abbas Uddin","doi":"10.1002/amp2.70007","DOIUrl":"10.1002/amp2.70007","url":null,"abstract":"<div>\u0000 \u0000 <p>The preconsumer textile waste in the manufacturing country dominates the circularity in the textile and apparel industries. Bangladesh, the world's second largest exporter of apparel, produces a tremendous amount of preconsumer waste while manufacturing yarn, fabric, dyed fabric, and apparel in the whole textile production chain. The sheer number of workers, traders, local manufacturers, exporters, and other formal and informal channels makes this waste management sector important. In addition, the value addition of this waste in the local and export markets is increasingly significant. This study aims to determine and fill the knowledge gap on current circularity practices of nonhazardous textile solid waste in Bangladesh, drawing experience from an end-market for textile solid waste. One distinct textile waste cluster, Mirpur, was selected. Based on field surveys and interviews, it is found that approximately 76% of textile solid waste is reused, 11% is used for making recycled yarn, and another 11% is used as fuel for boilers and geotextile for road construction activities, and 2% is wasted as fabric dust. The cost of selling textile solid waste ranges from USD 0.1 to USD 0.95, depending on the type of waste. Overall, the Mirpur cluster processes around 600–800 tons of textile solid waste per month and employs around 800–1000 staff, of whom 95% are women. It shows an informal circular textile waste economy where nothing is wasted, and everything is utilized, creating new markets, products, businesses, and employment. However, such practices lack regulatory oversight and monitoring, which could be transformed into a formally functioning circular economy.</p>\u0000 </div>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in Titania Nanotubes Development by Anodization and Their Role in Solar-Driven Water Splitting","authors":"G. P. Jeslin Jebish,&nbsp;R. P. Jebin","doi":"10.1002/amp2.70005","DOIUrl":"10.1002/amp2.70005","url":null,"abstract":"<div>\u0000 \u0000 <p>The study investigates the fabrication and characterization of titanium dioxide (TiO₂) nanotubes synthesized via a two-electrode anodization process, with a focus on their application in solar-driven water splitting for sustainable hydrogen production. TiO₂ nanotubes were fabricated on titanium foils by anodizing in a 0.5% M ammonium fluoride (NH₄F) solution in ethylene glycol, using a range of applied voltages (12, 20, and 30 V) for a duration of 2 h. The resultant TiO₂ nanotubes exhibited an average diameter of 85 nm and an average length of 1.4 μm, demonstrating a highly ordered and uniform structure, as observed via field emission scanning electron microscopy (FESEM). The crystallinity and phase composition of the TiO₂ nanotubes were investigated through X-ray diffraction (XRD), which revealed that the nanotubes predominantly retained the anatase phase, known for its high photocatalytic efficiency. Optical properties were further examined using UV–Vis absorption spectroscopy, which indicated a characteristic absorption edge around 380 nm, corresponding to a bandgap of 3.2 eV. This suggests that the material predominantly absorbs ultraviolet (UV) light, limiting its use under natural sunlight. However, these properties indicate the potential for further enhancement through techniques such as doping or cocatalyst integration to improve visible light absorption and overall photocatalytic efficiency. The findings demonstrate that TiO₂ nanotubes, with their high surface area and well-defined structure, exhibit favorable characteristics for photocatalytic water splitting. This work highlights the efficiency of the anodization technique in fabricating TiO₂ nanotubes with desirable properties for solar hydrogen production. The results suggest that future work aimed at optimizing the material through doping or the integration of cocatalysts could further enhance its performance in solar-driven water splitting, contributing to the development of sustainable energy solutions.</p>\u0000 </div>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scale-Down Analysis of Fouling in Cell Retention Devices for the Continuous Production of Monoclonal Antibodies","authors":"Delphine Tavernier,&nbsp;Timothy Erlandson,&nbsp;Andrea C. M. E. Rayat","doi":"10.1002/amp2.70019","DOIUrl":"10.1002/amp2.70019","url":null,"abstract":"<p>The use of perfusion bioreactor systems is increasing in biomanufacturing due to their potential for productivity gains, increased facility utilization, and process intensification. Systematic studies on cell retention devices are limited even if these devices are often described as process-limiting during perfusion. This work aims to address this gap by establishing a scale-down model for perfusion that enables the specific investigation of fouling, whether due to submicron particles or soluble foulants, in a cell retention device. A methodology was developed to simulate aspects of perfusion culture and investigate the impact of fouling components from the cell culture. To mimic large-scale cell culture, the feed to a filter membrane was varied using quasi-perfusion in flasks over several days. The effect of upstream changes on filter capacity was evaluated using ultra scale-down normal flow filtration, including studies of cell culture and cell-free supernatant harvest for pore size selection. By replicating the impact of shear from industrial pumps during fluid transport (i.e., from bioreactor to the retention device), the kompAs ultra scale-down shear device demonstrated a significant reduction in filter capacity due to shear exposure. Lastly, a very small-scale TFF system (16 cm²) was used to simulate the continuous filtration during perfusion and to evaluate the filter operation using cell-free feeds to investigate the impact of soluble foulants. The novel application of these ultra scale-down tools revealed the main fouling mechanism (pore constriction) and the major soluble foulant in this study (DNA rather than the product or host cell proteins).</p>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilization of Data Augmentation Techniques in Automated Inspection Systems for Defect Detection in Metals With Limited Data","authors":"Mohammad Mohammadzadeh,&nbsp;Elif Elçin Günay,&nbsp;John Jackman,&nbsp;Gül E. Kremer,&nbsp;Paul Kremer","doi":"10.1002/amp2.70011","DOIUrl":"10.1002/amp2.70011","url":null,"abstract":"<p>Accurate identification of defects on metal surfaces is of great interest to many industry sectors, such as the automotive and aerospace industries. In contrast to conventional manual inspection techniques, recent automated inspection systems employ deep learning models trained to detect defects rapidly and precisely. The development of these models often requires a substantial image dataset to acquire adequate knowledge of defect features and enhance their predictive accuracy. When data is limited, augmentation techniques are often used to improve the precision and accuracy of defect detection systems. This study examined the prediction performance of two object detection models, namely Faster Region-based Convolutional Neural Network (Faster R-CNN) and You Only Look Once version 8 (YOLOv8), to identify dent defects in limited images of cast iron cylinder head surfaces. The original image set contains 46 images with 563 dents. To overcome limited data availability, common image augmentation techniques along with a copy-paste method were applied. Results show that standard augmentation improved YOLOv8 accuracy by 8.00% and average precision (AP) by 3.00%. On the other hand, the copy-paste technique achieved a 20.00% increase in accuracy and a 1% increase in AP with just 200 synthetic dents. These results provide support for using the copy-paste augmentation strategy to enhance defect detection performance, with a limited dataset, contributing to more accurate defect identification in remanufacturing processes.</p>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Addressing Favorable and Challenging Flexible Plastic Packaging Waste Flows: A Material Flow Analysis","authors":"Oksana A. Makarova,&nbsp;Basuhi Ravi,&nbsp;Margaret J. Sobkowicz,&nbsp;Davide Masato,&nbsp;Elsa A. Olivetti","doi":"10.1002/amp2.70014","DOIUrl":"10.1002/amp2.70014","url":null,"abstract":"<p>The majority of post-consumer flexible plastic packaging (FPP) in the United States ends up in landfills and incinerators. This represents a significant material loss because FPP, also referred to as plastic films or foils, comprises up to half of all plastic packaging. Since FPP encompasses a diverse range of products with varying recycling potentials, improving material recovery rates requires a detailed understanding of the composition and quantities of used films. This study quantifies post-consumer FPP flows in the US for 2021 and estimates the fraction most suitable for mechanical recycling. We conducted a material flow analysis (MFA) by reconciling publicly available data on packaging film generation and recycling from the US and comparable economies. We then categorized post-consumer FPP into three broad categories based on factors affecting the quality of the resulting mechanically recycled material. Our analysis reveals that only 3%–8% of the estimated 5–15 million metric tonnes of post-consumer film were recycled in 2021. Furthermore, at most 40% of the FPP could be readily mechanically recyclable, while up to half would be deemed non-recoverable due to techno-economic constraints. The actual proportions of challenging-to-recycle and non-recoverable FPP might be even higher, underscoring the need for updated studies on film generation and waste composition to assess the feasibility of scaling up nationwide film recycling.</p>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Retrospective Analysis of Circular Economy and Industrial Decarbonization Metrics in the United States, 1998–2022","authors":"Heather P. H. Liddell,&nbsp;Brian M. Ray,&nbsp;Joseph W. Cresko","doi":"10.1002/amp2.70013","DOIUrl":"10.1002/amp2.70013","url":null,"abstract":"<p>While technical strategies for industrial decarbonization can be synergistic with those supporting a circular economy, metrics for decarbonization and circularity are distinct (and not necessarily correlated). We analyze time-series data for the period 1998–2022 synthesized from multiple U.S. governmental datasets, including new input/output data from the Bureau of Economic Analysis's 2023 Comprehensive Update of the National Economic Accounts, to take a “pulse check” on decarbonization and circularity metrics in the United States. This includes a retrospective analysis of trends in industrial emissions intensity over time (based on historical Manufacturing Energy Consumption Survey data) and correlations with salient economic metrics for 18 U.S. manufacturing industries. Some industries are reducing their emissions much faster than others, and we show that this pace of change—at least for certain industries—has to do with industry growth rates as well as predictable lock-in effects related to investments in capital assets. The analysis is extended to an initial exploration of interconnectedness between industry growth, material flows, and indicators relevant to the circular economy. We leverage data from economic input–output tables to assess the intensiveness of virgin material use in U.S. manufacturing supply chains, and comment on the usefulness of these measures as high-level indicators for circularity and circularity potential.</p>","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.70013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}