Life Cycle Analysis Research Articles

Alternative lubrication-cooling approaches for broaching medium-carbon steel: Machining performance and life cycle analysis

Alternative lubrication-cooling approaches for broaching medium-carbon steel: Machining performance and life cycle analysis

Gaining insight into best management practices for climate change impact abatement on agroecosystem services and disservices.

Gaining insight into best management practices for climate change impact abatement on agroecosystem services and disservices.

Sustainability of gasification-based cogeneration with agri-food residues and heat recovery technologies: Techno-economic and life cycle analyses

Sustainability of gasification-based cogeneration with agri-food residues and heat recovery technologies: Techno-economic and life cycle analyses

Empirical life cycle analysis (LCA) of wind turbines

Empirical life cycle analysis (LCA) of wind turbines

Sustainability in breast surgery: An eco-audit of the breast implant pathway.

Sustainability in breast surgery: An eco-audit of the breast implant pathway.

Analyzing the impact of design factors on external walls in lightweight modular construction based on life-cycle analysis: Energy, economic, and environmental trade-offs

Analyzing the impact of design factors on external walls in lightweight modular construction based on life-cycle analysis: Energy, economic, and environmental trade-offs

Techno-economic and environmental life cycle analysis of renewable-based combined potassium - calcium looping cycle for direct air CO2 capture

Techno-economic and environmental life cycle analysis of renewable-based combined potassium - calcium looping cycle for direct air CO2 capture

Techno-economic and life cycle analysis of a nano-enhanced flat plate solar collector for improved thermal performance

Techno-economic and life cycle analysis of a nano-enhanced flat plate solar collector for improved thermal performance

Life cycle analysis of a hybrid direct air capture system enabling combined carbon dioxide and water extraction from ambient air

Life cycle analysis of a hybrid direct air capture system enabling combined carbon dioxide and water extraction from ambient air

Techno-economic assessment and life cycle analysis of restaurant food waste-to-electricity conversion in Malaysia and Singapore within a circular bioeconomy framework

Techno-economic assessment and life cycle analysis of restaurant food waste-to-electricity conversion in Malaysia and Singapore within a circular bioeconomy framework

Life cycle analysis of hydrotreated vegetable oils production based on green hydrogen and used cooking oils

Life cycle analysis of hydrotreated vegetable oils production based on green hydrogen and used cooking oils

Optimization of hydrogen-methane co-production from corn stover via enzymatic hydrolysis: Process intensification, microbial community dynamics, and life cycle assessment.

Optimization of hydrogen-methane co-production from corn stover via enzymatic hydrolysis: Process intensification, microbial community dynamics, and life cycle assessment.

Integrating waste thermal conversion and lifecycle analysis for sustainable energy production: Reflecting upon environmental and economic impacts

Integrating waste thermal conversion and lifecycle analysis for sustainable energy production: Reflecting upon environmental and economic impacts

Product lifecycle analysis and assessment of lithium-ion battery for prioritizing the factors of effective 5R: Case study

Product lifecycle analysis and assessment of lithium-ion battery for prioritizing the factors of effective 5R: Case study

A real-time lifecycle analysis model with digital twin and novel control method for enhancing the environmental performance of electric/hybrid propulsion ships

A real-time lifecycle analysis model with digital twin and novel control method for enhancing the environmental performance of electric/hybrid propulsion ships

Aerospace technologies and their impact on global climate change: The role of electrical systems in sustainable aviation and space travel

This article explores the critical role of aerospace electrical systems in mitigating global climate change through the decarbonization of aviation and space travel. It examines how advancements in electric and hybrid-electric propulsion technologies can significantly reduce the environmental footprint of the aerospace industry, which currently contributes substantially to global carbon emissions. The article analyzes the technical, infrastructural, regulatory, and economic challenges hindering full electrification while highlighting promising developments in energy storage, power electronics, and thermal management systems. Through article methodology incorporating life cycle analysis and technological readiness evaluations, the study compares conventional and electrical propulsion systems across different operational profiles and market segments. The article presents case studies of successful implementations, projects market penetration trajectories, and offers policy recommendations to accelerate industry transition. Additionally, it explores synergies between aerospace electrical systems and broader sustainable energy ecosystems, concluding with a long-term vision for zero-emission aerospace transportation that integrates multiple technological pathways across different operational domains.

Aligning With the Goals of the Planetary Health Concept Regarding Ecological Sustainability and Digital Health: Scoping Review.

Climate change, driven by greenhouse gas emissions, threatens human health and biodiversity. While the digitalization of health care, including telemedicine and artificial intelligence, offers sustainability benefits, it also raises concerns about energy use and electronic waste. Balancing these factors is key to a sustainable health care future. The objective of this review was to examine the extent to which digitalization in the health care sector influences environmental sustainability. Specifically, it aimed to assess how digitalization can contribute to reducing the health care sector's impact on global climate change. From these findings, conclusions were drawn regarding the extent to which digitalization aligns with the objectives of the Planetary Health movement and how these 2 movements may mutually reinforce each other. A scoping review guided by the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) 2020 guidelines using databases such as PubMed and Scopus was conducted, and 58 quantitative studies from 2009 to 2024 were analyzed for environmental, social, and economic outcomes aligned with Planetary Health goals. This review analyzed 58 studies on the environmental impact of digitalization in health care primarily focusing on telemedicine, which was examined in 91% (53/58) of the studies. Most studies (56/58, 97%) quantified transport-related emissions avoided through digitalization, with some also assessing emissions from health care facilities, medical equipment, and energy consumption. Findings indicated that telemedicine significantly reduces carbon dioxide emissions, with total avoided emissions amounting to approximately 830 million kg. A substantial proportion of the studies (36/58, 62%) focused on social aspects, highlighting factors such as patient satisfaction, time efficiency, and overall convenience. In addition, economic considerations were analyzed in 48% (28/58) of the studies, emphasizing cost reductions and resource optimization. However, only 12% (7/58) of the studies evaluated the full life cycle impact of digital technologies, highlighting the need for further research on their long-term environmental sustainability. This review calls for further research beyond telemedicine, advocating for life cycle analyses and actionable strategies for a sustainable digitalization in health care systems. The Planetary Health framework is highlighted as a guide for ensuring sustainable digital transformation in health care.

Governance, Energy Policy, and Sustainable Development: Renewable Energy Infrastructure Transition in Developing MENA Countries

This study provides a comparative analysis of the environmental and economic performance of Oman, Egypt, and Morocco, focusing on the critical interplay between their economic structures, governance frameworks, and energy policies. Morocco stands out as a regional leader in renewable energy, driven by significant investments in solar, wind, and hydroelectric projects, positioning itself as a model for clean energy transition. Egypt, despite its rapid industrialization and urbanization, faces mounting environmental pressures that challenge its economic diversification efforts. Oman, heavily dependent on hydrocarbons, confronts significant sustainability risks due to its reliance on fossil fuels, despite the political stability that could support renewable integration. The research underscores that while these nations share common challenges, including regulatory weaknesses and energy policy inconsistencies, their distinct economic contexts demand tailored approaches. Morocco’s path to energy leadership must focus on integrating renewables across all sectors, enhancing grid infrastructure, and expanding green technology innovations to maintain momentum. Egypt should prioritize scaling up renewable infrastructure, reducing dependency on fossil fuels, and investing in clean technology to address its carbon footprint. For Oman, the strategic diversification of its economy, combined with aggressive renewable energy integration, is critical to reducing CO2 emissions and mitigating climate impacts. This study contributes novel insights by highlighting the role of political stability, institutional quality, and policy coherence as critical enablers of long-term sustainability. It also identifies the importance of regional cooperation and knowledge sharing to overcome shared challenges like data limitations, geopolitical complexities, and methodological gaps in sustainability assessments. The findings advocate for a multi-method approach, integrating economic modeling, life-cycle analysis, and policy evaluation, to guide future sustainability efforts and foster resilient, low-carbon economies in the MENA region.

Life Cycle Analysis of Coaxial Layered Fiber Spinning for Wind Turbine Blade Recycling.

This article explores the environmental sustainability of recycling decommissioned wind turbine blades to produce polyacrylonitrile fiber. By comparing greenhouse gas emissions across various scales of production in different regions, including the US and Europe, the study highlights how cleaner energy grids, such as those in France, can substantially reduce the carbon footprint. The carbonization and graphitization stages, identified as highly energy-intensive, underscore the need for energy-efficient techniques and alternative energy sources. The study reveals significant reductions in greenhouse gas emissions with scalable production, demonstrating US production emissions reduced to 3.89 kg CO2 equiv/kg fiber and European production to 3.28 kg CO2 equiv/kg fiber from a lab scale of at least one order of magnitude higher. The findings emphasize the importance of sustainable raw materials, green chemistry, and renewable energy in enhancing the sustainability of carbon fiber production and promoting a circular economy in wind energy.

A Greener and More Scalable Synthesis of Biogenic Polydisulfides from Lipoic Acid.

Ring-opening polymerization (ROP) of 1,2-dithiolanes form polydisulfides, an emergent class of dynamic covalent polymers. However, both monomer and polymer syntheses typically require anaerobic and moisture-free conditions, often employing hazardous reagents and solvents that limit scalability. Herein, efficient, scalable syntheses for poly(ethyl lipoate) and ethyl lipoate that incorporate Green Chemistry principles are disclosed. The synthesis of ethyl lipoate from lipoic acid on a 100-gram scale (>80% yield) is optimized loweringthe E-factor (2.27) by an order of magnitude compared to conventional methods. Diphenyl phosphate, a nonhazardous commercial organic acid, is used to synthesize ultra-high-molecular-weight poly(ethyl lipoate) on a 50-gram scale from cationic ROP (CROP). The polymerizations proceed under ambient atmosphere in low-hazard and renewable solvents, and a mild depolymerization strategy to regenerate the monomer is developed. Due to their extreme molar mass, the materials possess unique mechanical and physical properties. Life cycle assessment (LCA) conducted on synthetic and recycling processes shows that the polydisulfide has competitive environmental impacts comparable to several commodity polymers, despite the latter having an efficiency advantage due to economies of scale. These discoveries establish an economical and scalable closed-loop polymer platform that can be broadly applied to various polydisulfides sourced from 1,2-dithiolanes such aslipoic acid.