Cleaner Environmental Systems最新文献_第6页

Eco-innovation and green entrepreneurship: Transforming challenges into opportunities for the environment 生态创新和绿色创业：将环境挑战转化为机遇

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-10-04 DOI: 10.1016/j.cesys.2025.100345

Leola Dewiyani , Arita Marini , Gusti Yarmi , Nelfiyanti , Dwi Atmanto , Sardi Salim , Desy Safitri , Parulian Irwansyah , Musril Zahari , Rezeqi Hardam Saputro , Asep Marfu

This study aims to analyze the impact of eco-innovation and green entrepreneurial orientation on environmental awareness and sustainability practices, and their effect on green business strategies among engineering students in Indonesia. The study employs a quantitative approach with a survey method, and data analysis was performed using Structural Equation Modeling (SEM) to test the relationships between variables. The respondents in this study were engineering students in Indonesia who are involved in sustainability-oriented entrepreneurial activities or technological innovations. The key findings of this study indicate that eco-innovation and green entrepreneurial orientation have a positive and significant impact on environmental awareness and sustainability practices. Additionally, environmental awareness is found to mediate the relationship between eco-innovation, green entrepreneurial orientation, and green business strategies. However, sustainability practices were not found to be a significant mediator in the relationship between these variables and green business strategies. These findings highlight the importance of integrating environmental awareness into engineering education to foster innovative green entrepreneurs. The contribution of this study lies in expanding the literature on the role of environmental awareness in shaping green business strategies, particularly within the context of engineering education in Indonesia. The originality of this study is reflected in testing the model of relationships between eco-innovation, green entrepreneurial orientation, and green business strategies among engineering students, an area that remains underexplored in previous research in Indonesia. This study provides recommendations for educational policies to facilitate the development of green entrepreneurship among engineering students.

本研究旨在分析生态创新和绿色创业导向对印尼工科学生环境意识和可持续发展实践的影响，以及它们对绿色商业战略的影响。本研究采用定量方法和问卷调查法，采用结构方程模型（SEM）对数据进行分析，检验变量之间的关系。本研究的受访者是参与可持续发展导向的创业活动或技术创新的印度尼西亚工程专业学生。研究发现，生态创新和绿色创业取向对环境意识和可持续发展行为具有显著的正向影响。此外，环境意识在生态创新、绿色创业取向和绿色商业战略之间起中介作用。然而，在这些变量与绿色商业战略之间的关系中，可持续性实践并没有被发现是一个显著的中介。这些发现突出了将环境意识融入工程教育以培养创新型绿色企业家的重要性。本研究的贡献在于扩大了关于环境意识在塑造绿色商业战略中的作用的文献，特别是在印度尼西亚工程教育的背景下。本研究的独创性体现在对工程专业学生的生态创新、绿色创业取向和绿色商业战略之间关系模型的测试上，这一领域在印度尼西亚的先前研究中仍未得到充分探索。本研究为促进工科学生绿色创业的教育政策提供建议。

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引用次数: 0

Life cycle assessment of whiteleg shrimp farming in earthen vs. HDPE-lined ponds in India 印度土质与高密度聚乙烯衬里池塘养殖白对虾的生命周期评估

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-10-03 DOI: 10.1016/j.cesys.2025.100342

Trivesh S. Mayekar , Venkatesh Paramesha , G.B. Sreekanth , C.U. Rivonker , Parveen Kumar

Whiteleg shrimp (Penaeus vannamei) farming has expanded rapidly worldwide, contributing significantly to global seafood supply. However, concerns remain about its environmental impacts, particularly in India—a major exporter with diverse production systems. High-Density Polyethylene (HDPE)-lined ponds and earthen ponds are widely used, but their comparative environmental performance has not been comprehensively evaluated. This study aimed to quantify and compare the environmental impacts of intensive HDPE-lined and semi-intensive earthen pond shrimp farming systems along India's west coast. A cradle-to-farm-gate Life Cycle Assessment (LCA) was conducted using SimaPro software and the ReCiPe 2016 Midpoint method. Primary data were collected from 20 farms and one hatchery, covering seed production, feed use, and energy consumption. Environmental impacts were assessed across multiple categories, including Global Warming Potential (GWP), Terrestrial Acidification Potential (AC), and Marine Eutrophication Potential (EU). Results showed that HDPE-lined ponds had significantly higher GWP (369.04 vs. 268.06 kg CO₂ eq) and AC (1.20 vs. 0.94 kg SO₂ eq) per tonne of shrimp compared to earthen ponds, but lower EU (0.03 vs. 0.05 kg N eq). Seed production, electricity use, and feed emerged as the primary contributors to environmental impacts. Findings suggest that transitioning from HDPE-lined to earthen pond systems, adopting renewable energy sources such as solar aeration, and replacing fishmeal with plant-based alternatives could substantially improve the sustainability of Indian shrimp aquaculture.

白对虾（南美白对虾）养殖在世界范围内迅速扩大，对全球海产品供应作出了重大贡献。然而，对其环境影响的担忧仍然存在，特别是在印度——一个生产体系多样化的主要出口国。高密度聚乙烯（HDPE）衬砌池和土池被广泛使用，但它们的比较环境性能尚未得到全面评价。本研究旨在量化和比较沿印度西海岸高密度聚乙烯衬里和半密集的土塘对虾养殖系统对环境的影响。采用SimaPro软件和ReCiPe 2016 Midpoint方法进行了从摇篮到农场的生命周期评估（LCA）。主要数据收集自20个养殖场和一个孵化场，包括种子生产、饲料使用和能源消耗。环境影响通过多个类别进行评估，包括全球变暖潜势（GWP）、陆地酸化潜势（AC）和海洋富营养化潜势（EU）。结果表明，与土池相比，hdpe池每吨虾的GWP （369.04 kg CO2当量比268.06 kg CO2当量）和AC （1.20 kg SO2当量比0.94 kg SO2当量）显著高于土池，但EU （0.03 kg N当量比0.05 kg N当量）较低。种子生产、电力使用和饲料成为造成环境影响的主要因素。研究结果表明，从高密度聚乙烯衬里池塘系统过渡到土质池塘系统，采用太阳能通风等可再生能源，并用植物性替代品替代鱼粉，可以大大提高印度虾类水产养殖的可持续性。

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引用次数: 0

Financial feasibility and optimization of anaerobic digestion systems for sustainable waste management: A comprehensive global analysis 经济可行性和优化厌氧消化系统的可持续废物管理：一个全面的全球分析

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-09-26 DOI: 10.1016/j.cesys.2025.100339

Ali Marefat , Abooali Golzary , Fumitake Takahashi , Donald Huisingh

Effective management of organic waste plays a vital role in addressing environmental challenges and advancing sustainable development goals. This review article provides a comprehensive financial assessment of anaerobic digestion (AD) systems for treating the organic fraction of municipal solid waste (OFMSW). Previous studies on AD systems have largely been confined to local case studies with findings that cannot be generalized beyond their specific regions, and they have often overlooked the combined influence of technical, economic, and political factors on financial performance. The study begins by identifying the gaps and limitations in existing financial models for AD systems. It then develops an enhanced financial framework and uses scenario-based analyses to assess the financial feasibility of AD technologies. The model outputs indicate that the financial feasibility of AD systems is heavily influenced by national energy policies and environmental regulations. It is revealed that insufficient government support for energy tariffs—particularly in countries experiencing economic instability—serves as a major barrier to the cost-effectiveness of AD systems. In contrast, in economically stable regions, the financial sustainability of these systems is primarily challenged by stringent environmental regulations specifically related to digestate disposal. To overcome these challenges and further strengthen the financial performance of AD systems, future research should prioritize AI-driven optimization to enhance operational efficiency, reduce costs, increase energy output, and ultimately improve financial sustainability. By addressing existing barriers and proposing actionable recommendations, this review aims to foster the adoption of AD technologies as a cornerstone of sustainable waste management practices.

有效管理有机废物对应对环境挑战和推进可持续发展目标至关重要。本文综述了厌氧消化（AD）系统处理城市固体废物（OFMSW）有机部分的综合财务评估。以前对AD系统的研究主要局限于当地的案例研究，其结果不能推广到特定区域之外，而且往往忽视了技术、经济和政治因素对财务绩效的综合影响。该研究首先确定了AD系统现有财务模型中的差距和局限性。然后，它开发了一个增强的财务框架，并使用基于场景的分析来评估AD技术的财务可行性。模型结果表明，可持续发展系统的财务可行性受到国家能源政策和环境法规的严重影响。研究表明，政府对能源关税的支持不足——特别是在经历经济不稳定的国家——是AD系统成本效益的主要障碍。相比之下，在经济稳定的地区，这些系统的财务可持续性主要受到严格的环境法规的挑战，特别是与消化处理有关的法规。为了克服这些挑战并进一步加强防空系统的财务绩效，未来的研究应优先考虑人工智能驱动的优化，以提高运营效率、降低成本、增加能源产出，最终提高财务可持续性。通过解决现有的障碍和提出可行的建议，本审查旨在促进采用可持续废物管理技术，作为可持续废物管理做法的基石。

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引用次数: 0

Artificial intelligence and sustainable development: Public concerns and governance in developed and developing nations 人工智能与可持续发展：发达国家和发展中国家的公众关注和治理

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-09-26 DOI: 10.1016/j.cesys.2025.100340

Mehrdad Maghsoudi , Navid Mohammadi , Mohammadreza Bakhtiari

Artificial Intelligence (AI) has emerged as a transformative technology with the potential to accelerate progress toward the United Nations' Sustainable Development Goals (SDGs). However, its adoption and societal implications vary significantly between developed and developing nations, shaped by differing priorities, socio-economic realities, and governance capacities. This study systematically analyzes global public discourse on AI and its alignment with the SDGs using natural language processing and a graph-based multi-label classification framework. By analyzing over 249,000 posts on social media (Twitter/X) and categorizing them into SDG-related concerns, we reveal shared global priorities, such as the emphasis on SDG 9 (Industry, Innovation, and Infrastructure), and key contextual divergences. Developed nations focus on optimizing advanced systems and ethical governance, while developing countries highlight AI's potential to bridge infrastructural gaps and promote digital equity. Notably, SDGs addressing essential human needs, such as Zero Hunger (SDG 2) and Clean Water and Sanitation (SDG 6), remain underrepresented globally. Using expert-driven Delphi panels, we provide context-sensitive governance strategies tailored to regional priorities. This study highlights the necessity of inclusive, adaptive AI policy frameworks that reflect global disparities while fostering equitable development. The findings offer actionable insights for policymakers, researchers, and practitioners seeking to align AI governance with sustainability and equity goals.

人工智能（AI）已经成为一种变革性技术，有可能加速实现联合国可持续发展目标（sdg）。然而，由于优先事项、社会经济现实和治理能力的不同，发达国家和发展中国家对其采用情况和社会影响差异很大。本研究使用自然语言处理和基于图的多标签分类框架系统地分析了关于人工智能的全球公共话语及其与可持续发展目标的一致性。通过分析社交媒体（Twitter/X）上的249,000多条帖子，并将其归类为与可持续发展目标相关的问题，我们揭示了全球共同的优先事项，例如对可持续发展目标9（工业、创新和基础设施）的强调，以及关键的背景分歧。发达国家注重优化先进系统和道德治理，而发展中国家则强调人工智能在弥合基础设施差距和促进数字公平方面的潜力。值得注意的是，解决人类基本需求的可持续发展目标，如零饥饿（可持续发展目标2）和清洁水和卫生设施（可持续发展目标6），在全球仍未得到充分代表。通过专家驱动的德尔福小组，我们提供针对地区优先事项的环境敏感型治理策略。本研究强调了包容性、适应性人工智能政策框架的必要性，该框架应反映全球差异，同时促进公平发展。研究结果为寻求将人工智能治理与可持续性和公平性目标相结合的政策制定者、研究人员和从业者提供了可操作的见解。

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引用次数: 0

Assessing the economic feasibility and environmental sustainability of 3D printed dysphagic food 评估3D打印消化不良食品的经济可行性和环境可持续性

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-09-26 DOI: 10.1016/j.cesys.2025.100341

Alexandros Stratakos , Antonia Vyrkou , Oluwatobi Fatola , Athanasios Angelis-Dimakis

3D-printing of food is an emerging technology that has great potential not only to leading to more efficient food production with less waste but also for developing functional foods, suitable for consumers with specific medical conditions such as dysphagia. An aspect that has not been addressed so far, though, is its environmental performance compared to conventional food production and the potential economic benefits of decentralised 3D-printing of food. We have examined the case of a care home which hosts between 10 and 30 dysphagic residents, with specific dietary requirements, and assessed three alternative scenarios: (a) decentralised 3D printed dysphagic food; (b) centralised 3D printed dysphagic food, distributed to the care home; and (c) centralised conventionally prepared dysphagic food. The analysis has shown that 3D-printing of dysphagic food has a better environmental performance compared to conventionally prepared food, with a 5–13 % improvement in all the midpoint impact indicators. Moreover, the purchase of a 3D-printer by the case home for decentralised production of dysphagic food can be a profitable investment, with the price of conventionally prepared food being the main parameter affecting the decision. A commercial purchase price conventionally prepared food higher than £3.80 per portion of 250 g will definitely render such an investment economically viable, while prices as low as £3.25 can also lead to a viable investment, when the number of residents increases.

食品3d打印是一项新兴技术，它具有巨大的潜力，不仅可以提高食品生产效率，减少浪费，还可以开发功能性食品，适合患有吞咽困难等特定疾病的消费者。然而，到目前为止还没有解决的一个方面是，与传统食品生产相比，它的环境性能以及分散的食品3d打印的潜在经济效益。我们研究了一个护理中心的案例，其中有10到30名患有吞咽困难的居民，他们有特定的饮食要求，并评估了三种替代方案：(a)分散的3D打印吞咽困难食物；(b)集中3D打印的吞咽困难食物，分发给养老院；(c)集中常规制备的消化不良食物。分析表明，与传统制备的食品相比，3d打印的消化不良食品具有更好的环保性能，所有中点影响指标都提高了5 - 13%。此外，购买一台用于分散生产消化不良食品的3d打印机可能是一项有利可图的投资，因为传统制备食品的价格是影响决策的主要参数。如果传统食品的商业购买价格高于每250克3.80英镑，那么这种投资在经济上肯定是可行的，而当居民数量增加时，价格低至3.25英镑也可以导致可行的投资。

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引用次数: 0

Life cycle assessment of selected maritime pine wood industries in the Landes de Gascogne forest of France 法国加斯科涅州森林中选定海洋松木工业的生命周期评估

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-09-25 DOI: 10.1016/j.cesys.2025.100338

Haji Yazdeen , Takunda Y. Chitaka , Regis Pommier , Guido Sonnemann

Forestry is a vital part of natural systems and has traditionally supplied renewable raw materials for industrial uses and domestic fuelwood. Life Cycle Assessment has become one of the most recognized and internationally accepted method for examining the environmental performance of forest products and processes. The main aim of this study was to evaluate the potential environmental impact associated with different commercial outputs of maritime pine wood (construction wood, pallets, plywood, pellets, unbleached (UB) pulpwood) from the Landes de Gascogne forest. The study showed that pulpwood presented the highest values in all the evaluated impact categories including climate change whilst pellets presented the lowest values. Maritime pine from the first thinning was the hotspot in the construction wood production process, while the nails presented the hotspot for the pallet production process. In the plywood production process, melamine formaldehyde resin was the highest contributor to environmental impacts. Maritime pine from the first thinning was also the hotspot in pellet production whilst heat from steam was the hotspot in UB pulp production. The results of this comprehensive assessment can be used to support environmentally sound decision-making for forest and factory management with regard to the beneficiation of wood.

林业是自然系统的重要组成部分，传统上为工业用途和家庭薪柴提供可再生原料。生命周期评价已成为审查森林产品和过程的环境绩效的最公认和国际接受的方法之一。这项研究的主要目的是评估来自朗德德加斯科涅森林的海洋松木（建筑木材、托盘、胶合板、颗粒、未漂白纸浆木）的不同商业产出对环境的潜在影响。研究表明，在包括气候变化在内的所有评估影响类别中，纸浆木材的价值最高，而颗粒的价值最低。第一次疏伐的海松是建筑木材生产过程中的热点，而钉子是托盘生产过程中的热点。在胶合板生产过程中，三聚氰胺甲醛树脂对环境的影响最大。第一次减薄的海松也是球团生产的热点，而蒸汽产生的热量是UB纸浆生产的热点。这项综合评价的结果可用于支持森林和工厂管理在木材选矿方面的无害环境决策。

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引用次数: 0

Comparative life cycle assessment of bamboo-containing and wood-based hygiene tissue: Implications of fiber sourcing and conversion technologies 含竹和木质卫生组织的生命周期比较评估：纤维来源和转化技术的意义

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-09-23 DOI: 10.1016/j.cesys.2025.100337

Naycari Forfora, Rhonald Ortega, Isabel Urdaneta, Ivana Azuaje, Keren A. Vivas, Hasan Jameel, Richard Venditti, Ronalds Gonzalez

This study assesses the environmental impact of producing consumer bath tissue (CBT) in the United States using Brazilian bleached eucalyptus kraft (BEK) and Canadian northern bleached softwood kraft (NBSK) market pulps, in comparison to bamboo-based CBT from China. Additionally, the analysis includes considerations of soil organic carbon (SOC) sequestration from plant growth, and the biogenic global warming potential (GWPbio) based on biomass rotation periods.

Results indicate a cradle-to-grave carbon footprint (CF) of 1824 kg CO₂eq/air-dry ton (ADt) for US CBT (70 % BEK/30 % NBSK) using Light Dry Creped (LDC) technology. Substituting BBK for BEK/NBSK increases CF to 2041 kg CO₂eq/ADt, with Chinese manufactured CBT at 2400 kg CO₂eq/ADt. Using Creped Trough Air Drying (CTAD), CF rises to 2531 and 2739 kg CO₂eq/ADt for BEK-NBSK and BEK-BBK mixtures, respectively. Including SOC factors do not change the conclusions. While the GWPbio factors are highly dependent on the time horizon considered. These results emphasize production technologies' critical role in tissue sustainability and challenge bamboo's perceived environmental advantages.

本研究评估了在美国使用巴西漂白桉树硫酸盐（BEK）和加拿大北方漂白针叶硫酸盐（NBSK）市场纸浆生产消费者沐浴纸（CBT）对环境的影响，并与中国以竹子为基础的CBT进行了比较。此外，该分析还考虑了植物生长对土壤有机碳（SOC）的固存，以及基于生物量轮作周期的生物源全球变暖潜势（GWPbio）。结果表明，使用轻干蠕变（LDC）技术的美国CBT （70% BEK/ 30% NBSK）从摇篮到坟墓的碳足迹（CF）为1824 kg co2当量/风干吨（ADt）。以BBK代替BEK/NBSK可使CF增加到2041 kg CO2eq/ADt，而中国生产的CBT为2400 kg CO2eq/ADt。使用蠕变槽风干（CTAD）， BEK-NBSK和BEK-BBK混合物的CF分别上升到2531和2739 kg CO2eq/ADt。包括SOC因素不会改变结论。而GWPbio因子高度依赖于所考虑的时间范围。这些结果强调了生产技术在组织可持续性中的关键作用，并挑战了竹子的环境优势。

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引用次数: 0

Environmental impact assessment of multifunctional desalination systems 多功能海水淡化系统的环境影响评价

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-09-19 DOI: 10.1016/j.cesys.2025.100328

J.M. Ribeiro , G.A. Tsalidis , E. Nika , V. Vasilaki , D. Xevgenos , H. Jouhara , E. Katsou

The desalination sector adopts Minimal Liquid Discharge (MLD) systems to become more circular, reduce brine discharge and enhance water recovery, which transforms them to multifunctional systems. This multifunctionality requires a methodologically consistent and goal-aligned approach to environmental impact assessment that recognises how different modelling choices are connected with specific decision contexts. A criterion LCA-based framework aligned with the ISO 14044 hierarchy and tailored specifically to desalination has been developed. It guides the selection of allocation approaches based on system characteristics, integration level, and assessment objectives and is applied to assess an MLD system which co-produces desalinated water, sodium chloride, magnesium hydroxide, calcium hydroxide, sodium sulphate and hydrochloric acid. Multifunctionality was handled with system expansion and partitioning (physical and economic) approaches, resulting in different functional units. For physical and economic partitioning, the MLD system is modelled from a process and system perspective. The results indicate that the MLD system has larger environmental benefits than the reference system with system expansion. When physical and economic partitioning under different perspectives are applied, they result in different environmental burdens per co-product. The MLD system performs better than the reference system (0.005 kg CO₂/kg desalinated water) only when process economic partitioning (0.003 kg CO₂/kg desalinated water) is applied. Whereas, the rest co-products perform better than reference products for all partitioning approaches applied. Our results highlight the potential of brine as a secondary source of products. This study underscores the importance of selecting appropriate allocation approaches, contributing to sustainable practices in the desalination sector.

海水淡化行业采用最小液体排放（MLD）系统，以实现更循环、减少盐水排放和提高水回收率，从而将其转变为多功能系统。这种多功能性需要一种方法上一致和目标一致的方法来进行环境影响评估，认识到不同的建模选择如何与特定的决策背景相关联。基于lca的标准框架与ISO 14044层次结构保持一致，并专门针对海水淡化开发。根据系统特点、集成水平和评价目标，指导配置方式的选择，并应用于对淡化水、氯化钠、氢氧化镁、氢氧化钙、硫酸钠和盐酸共产MLD系统进行评价。通过系统扩展和划分（物理的和经济的）方法来处理多功能性，从而产生不同的功能单元。对于物理和经济分区，从过程和系统的角度对MLD系统进行建模。结果表明，随着系统的扩展，MLD系统比参考系统具有更大的环境效益。当应用不同视角下的物理和经济分区时，它们会导致每个副产品的环境负担不同。仅当采用工艺经济分配（0.003 kg CO2/kg淡化水）时，MLD系统的性能才优于参考系统（0.005 kg CO2/kg淡化水）。然而，对于所有应用的划分方法，其余的副乘积都比参考乘积表现得更好。我们的研究结果强调了卤水作为产品二次来源的潜力。这项研究强调了选择适当的分配方法的重要性，有助于海水淡化部门的可持续实践。

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引用次数: 0

Product-as-a-service transition for original equipment manufacturers: Challenges, performance metrics, and design guidelines – The case of electrical and electronic equipment 原始设备制造商的产品即服务转型：挑战，性能指标和设计指南-电气和电子设备的情况

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-09-18 DOI: 10.1016/j.cesys.2025.100330

J. Hidalgo-Crespo , Paulina Golinska-Dawson , Andreas Riel

Product-as-a-Service (PaaS) is a circular business model that allows original equipment manufacturers (OEMs) to enhance their product offerings, and capture the economic value by cascading value retention processes like repair, reuse, refurbishment, remanufacturing, and afterward recycling. The shift from traditional product ownership models to PaaS models requires a systemic transformation in how products are designed, delivered, and supported. In this paper we focus on the PaaS models for electrical and electronic equipment (EEE) for consumer markets. To ensure successful deployment we identify four key pillars of PaaS transformation: product design, service offerings, enabling technologies and supporting infrastructure. Through this research, we explore how identified challenges can be linked to indicators and guidelines as potential solutions for each of the four pillars. By applying PRISMA and bibliometric analysis, we identified 229 challenges, 182 indicators, and 169 design barriers and categorize them within the four fundamental pillars of PaaS: products, services, technologies, and infrastructure. Our findings highlight a notable deficiency in performance indicators and design guidelines related to both infrastructure and technology, resulting in a lack of methods and tools to support the development of circular PaaS offerings and ecosystems. This study suggests relating challenges, performance indicators, and design guidelines with each other for ultimately coming up with PaaS decision guidance for both designers and decision makers.

产品即服务（PaaS）是一种循环商业模式，它允许原始设备制造商（oem）增强其产品供应，并通过诸如维修、再利用、翻新、再制造和随后的回收等层叠价值保留过程获取经济价值。从传统的产品所有权模型到PaaS模型的转变需要在如何设计、交付和支持产品方面进行系统的转换。在本文中，我们关注的是面向消费者市场的电子电气设备（EEE）的PaaS模型。为了确保成功部署，我们确定了PaaS转型的四个关键支柱：产品设计、服务提供、启用技术和支持基础设施。通过这项研究，我们探索了如何将已确定的挑战与指标和指导方针联系起来，作为四大支柱的潜在解决方案。通过应用PRISMA和文献计量分析，我们确定了229个挑战、182个指标和169个设计障碍，并将它们归类为PaaS的四个基本支柱：产品、服务、技术和基础设施。我们的研究结果突出了与基础设施和技术相关的性能指标和设计指南的显着缺陷，导致缺乏支持循环PaaS产品和生态系统开发的方法和工具。本研究建议将挑战、性能指标和设计指南相互联系起来，最终为设计师和决策者提供PaaS决策指导。

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引用次数: 0

Decarbonization in the automotive sector: A scenario-based analysis of original equipment manufacturer pathways 汽车行业的脱碳：基于场景的原始设备制造商路径分析

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Environmental Systems

Pub Date : 2025-09-17 DOI: 10.1016/j.cesys.2025.100336

Thomas Fugger , Joseph Poligkeit , Christoph Herrmann

The automotive industry plays a crucial role in climate change mitigation due to its significant share of global greenhouse gas (GHG) emissions across the life cycle of its products. As a result, many original equipment manufacturers (OEMs) have adopted absolute or relative carbon reduction targets covering scope 1–3 emissions. However, there is a lack of industry-wide insight into how these efforts align with the reductions needed to meet a well-below 2 °C or 1.5 °C climate pathway. This paper addresses this gap through a scenario analysis of major automotive manufacturers from 2020 to 2050. Starting from OEM GHG inventories for 2020, sector decarbonization pathways (SDPs) are developed for all scope 1–3 emission categories, focusing on key emission hotspots. Three comparative scenarios (benchmark, ambitious, net-zero) are constructed and compared to an OEM-based scenario reflecting current corporate targets and production plans. The analysis reveals that published OEM targets are insufficient in both scope and ambition to meet the well-below 2 °C target. Moreover, substantial differences exist among OEMs regarding target coverage, ambition levels, and timelines. To enable a more effective decarbonization of the automotive sector, urgent, comprehensive, and collaborative action is needed. This includes robust portfolio planning, the adoption of clear and ambitious climate targets, and the development of actionable strategies—particularly in addressing future emission hotspots, notably scope 3 category 1.

汽车行业在其产品的整个生命周期中占全球温室气体（GHG）排放的很大份额，因此在减缓气候变化方面发挥着至关重要的作用。因此，许多原始设备制造商（oem）采用了涵盖范围1-3排放的绝对或相对碳减排目标。然而，对于这些努力如何与远低于2°C或1.5°C的气候路径所需的减排相一致，整个行业缺乏洞察力。本文通过对2020年至2050年主要汽车制造商的情景分析来解决这一差距。从2020年OEM温室气体清单开始，针对所有范围1-3的排放类别制定行业脱碳路径（sdp），重点关注关键排放热点。构建了三种比较情景（基准、雄心和净零），并与基于oem的情景进行了比较，反映了当前的企业目标和生产计划。分析显示，公布的OEM目标在范围和力度上都不足以实现远低于2°C的目标。此外，在目标覆盖范围、目标水平和时间表方面，oem之间存在巨大差异。为了使汽车行业实现更有效的脱碳，需要采取紧急、全面和协作的行动。这包括强有力的投资组合规划，采用明确和雄心勃勃的气候目标，以及制定可操作的战略，特别是在解决未来的排放热点方面，特别是第3类第1类。

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