Applied Energy最新文献

{"title":"Strategic decision-making in offshore oil and gas platform-to-wind turbine conversion: An integrated analysis of structural integrity into retrofit lifecycle costs and climate change impacts","authors":"Mohammadsaeid Bagheri Nia,&nbsp;Pedram Edalat","doi":"10.1016/j.apenergy.2025.125728","DOIUrl":"10.1016/j.apenergy.2025.125728","url":null,"abstract":"<div><div>The conversion of offshore oil and gas platforms into offshore wind turbines presents a viable and complex solution for extending the lifecycle of existing infrastructures at their decommissioning stage while contributing to renewable energy production. However, the retrofit process involved in conversion projects poses significant challenges for decision-makers in resource allocation and strategic planning. These challenges mainly lie in balancing the structural feasibility and economic viability of retrofit processes with their environmental sustainability. This study proposes an analytical decision-making framework that integrates structural integrity assessment into the retrofit life cycle cost and its associated climate change impact analyses. Utilizing a fuzzy analytic hierarchy process methodology, the study evaluates the impact of structural integrity criteria of the integrated existing infrastructure-offshore wind turbine on key retrofit cost components and its climate change implications. This framework provides insights into how variations in structural integrity directly influence the distribution of life cycle cost main contributors in retrofit process and its climate change impact across various life cycle stages. A sensitivity analysis was conducted to examine retrofit cost distributions and environmental effects across different structural safety threshold scenarios, providing strategic insights into sustainable resource allocation and strategic planning optimization in offshore platform conversion projects.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125728"},"PeriodicalIF":10.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Categorizing experiences of misrecognition in energy contexts: A recognition justice typology","authors":"Nynke van Uffelen ,&nbsp;Lara M. Santos Ayllón","doi":"10.1016/j.apenergy.2025.125730","DOIUrl":"10.1016/j.apenergy.2025.125730","url":null,"abstract":"<div><div>Within energy justice, distinct categories or “tenets” of justice are distinguished, such as procedural, distributive, and recognition justice. However, many tensions still surround the concept of recognition justice. By going back to the philosophical roots of the concept, Van Uffelen distinguishes between three modes of recognition: love, law, and status order (Van Uffelen, 2022). Although this is a valuable analytical tool for understanding grievances of misrecognition, its categories are wide-ranging and, at first sight, abstract and distant from the energy space. Because of this, it remains difficult to analyse qualitative data in energy contexts from a recognition lens. In this paper, we pose the following research question: how can experiences of misrecognition in the energy context be categorised? This paper proposes a more granular typology of recognition justice, building on literature on recognition justice in critical theory and taxonomies of human needs. We test the typology to see (1) whether it is sufficiently comprehensive and (2) whether its subcategories are relevant in energy contexts. To do so, we analyse a small sample of interviews in which participants express various experiences of misrecognition in relation to energy policies or infrastructure. In this, we adopt methodological triangulation, as Researcher One coded the interviews deductively through the framework, while Researcher Two conducted an inductive, thematic analysis of the same data. The resulting typology for recognition justice can support researchers and decision-makers in identifying and analysing experiences of misrecognition in energy contexts.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125730"},"PeriodicalIF":10.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental investigation of transcritical CO2 mixture power cycle with dual heat sources","authors":"Jingyu Wang ,&nbsp;Zhaohui Xing ,&nbsp;Yiwei Yin ,&nbsp;Liuchang Sun ,&nbsp;Xuanang Zhang ,&nbsp;Ligeng Li ,&nbsp;Hua Tian ,&nbsp;GequnShu","doi":"10.1016/j.apenergy.2025.125758","DOIUrl":"10.1016/j.apenergy.2025.125758","url":null,"abstract":"<div><div>The CO₂ transcritical power cycle is a prominent technology for utilizing low- and medium-temperature heat sources. To enhance CO₂ cycle performance, CO₂ mixture working fluids are employed to address harsh operating conditions and high pressures. However, comparative experiments on the performance of different additives under various operating conditions have not been conducted. The mechanisms behind performance improvements in real-world environments remain validated. Therefore, this work conducted an experimental investigation on three additives at two mass fractions and pure CO₂. The test bench utilized two heat sources, hot water and hot air, and the selected working fluids were tested under varying maximum temperatures and pressures. The results demonstrate that the CO₂ mixture working fluids are less suitable for hot water with high specific heat and low temperature, leading to reduced heat absorption and mass flow rate. Nevertheless, the CO₂ mixture working fluids can significantly reduce condensing pressure by up to 20 % under identical condensing conditions. Compared to pure CO₂, the mixture working fluids show relative improvements of 2.45 % in maximum net power output and 19.46 % in thermal efficiency. CO₂ mixture working fluids exhibit a greater performance advantage over pure CO₂ at lower maximum pressure. Recommendations for selecting working fluid to maximize net power output are provided. This work provides operational data for CO₂ mixture working fluids in real-world environments, demonstrates their effect on the matching of heat and cold sources, verifies the potential of CO₂ mixtures to replace pure CO₂, and offers motivation for future research and component development.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125758"},"PeriodicalIF":10.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling CCS policy support: Implications for market performance, net emissions, and welfare","authors":"Joseph E. Duggan Jr. ,&nbsp;Jonathan D. Ogland-Hand ,&nbsp;Richard S. Middleton","doi":"10.1016/j.apenergy.2025.125613","DOIUrl":"10.1016/j.apenergy.2025.125613","url":null,"abstract":"<div><div>Carbon capture and storage (CCS) is critical for addressing climate change. While governments are increasingly exploring different policy tools to incentivize its adoption, this topic has been under explored in the academic literature from a game-theoretic perspective. We examine a stylized model of CCS given different regulatory and market structure regimes to examine the incentive effects and social welfare implications of proposed policy interventions. Specifically, we examine a simple linear economy model of a wholesale electricity market in the context of a Cournot duopoly where one firm’s generation process entails CO₂ emissions while the second firm’s process does not. The first firm can capture and sequester 90 % of its generated emissions with CCS. We consider two possible policy interventions: a tax on net emissions and a subsidy for CCS where a firm that undertakes CCS receives a subsidy payment based on the amount of CO₂ sequestered. We find that CCS decreases CO₂ emissions relative to the case of no CCS, but without a strong enough CO₂ tax, a high enough sequestration subsidy can increase net emissions, relative to a lower subsidy, because of the imperfect capture rate. Interestingly, we find that CCS can lead to increases in both producer and consumer welfare while reducing net emissions. As such, we suggest that the adoption of CCS may provide a unique tool in simultaneously addressing two market failures characteristic of wholesale electricity markets: the exercise of market power and the negative externality of CO₂ emissions.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125613"},"PeriodicalIF":10.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling and analysis of V-shaped bifacial PV systems for agrivoltaic applications: A Python-based approach for energy optimization","authors":"Stefania Guarino ,&nbsp;Alessandro Buscemi ,&nbsp;Christian Chiaruzzi ,&nbsp;Valerio Lo Brano","doi":"10.1016/j.apenergy.2025.125785","DOIUrl":"10.1016/j.apenergy.2025.125785","url":null,"abstract":"<div><div>Agrivoltaic systems integrate photovoltaic (PV) energy production with agricultural activities, addressing the critical challenges of land use optimization and sustainable energy generation in the context of climate changes and food security. These systems are pivotal in offering a promising solution in mitigating the environmental and social impacts of utility-scale PV installations, such as habitat disruption and competition with agricultural land. This study evaluates a patented V-shaped bifacial photovoltaic system with a single-axis solar tracking, designed to optimize energy capture but also to minimize shading effects on crops like vineyards. A custom Python-based algorithm using PVlib was developed to simulate the performance of the system, accounting for mutual shading, multiple solar radiation reflections, and dynamic tilt adjustments. Simulations conducted for Palermo, Italy, revealed that the system collects 5.2 % less solar irradiation than traditional side-by-side configurations but achieves an annual energy output of 2089.3 kWh per pair of panels, along with 24 % reduction in land use. These results highlight the system capability to optimize spatial efficiency while maintaining high energy production. The novelty of this work lies in its tailored simulation approach, addressing the unique geometry and operational dynamics of the V-shaped configuration, and its potential adaptability to diverse agrivoltaics scenarios. Unlike existing tools and methodologies in the literature, this work introduces a customized Python-based model specifically designed to analyse the performance of this innovative structure, which is of recent conception and lacks precedent in both academic studies and commercial software solutions. By advancing the methodological framework for integrating renewable energy with agriculture, this study contribute to the broader goals of sustainable development and climate resilience.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125785"},"PeriodicalIF":10.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomass supply chain network design: Integrating fixed and portable preprocessing depots for cost efficiency and sustainability","authors":"Gaurav Bhatt ,&nbsp;Amit Upadhyay ,&nbsp;Kamalakanta Sahoo","doi":"10.1016/j.apenergy.2025.125757","DOIUrl":"10.1016/j.apenergy.2025.125757","url":null,"abstract":"<div><div>Bioenergy, as part of a broader renewable energy strategy, can significantly contribute to reducing greenhouse gas (GHG) emissions and combating climate change. However, high logistics costs remain a significant barrier to the growth of the bioenergy industry. This study introduces a novel Mixed Integer Linear Programming (MILP) model to optimize the biomass supply chain (BMSC) by integrating both fixed depots (FDs) and portable depots (PDs) for biomass preprocessing. The model optimizes the collection, transportation, and preprocessing of forest residue as biomass feedstock by determining the optimal number and location of both FDs and PDs, balancing costs associated with transportation, processing, and facility setup. Unlike traditional BMSCs, which rely exclusively on FDs, the inclusion of PDs provides the flexibility of relocating preprocessing units according to the availability of biomass. Scenario analysis and numerical experiments demonstrate that the integration of PDs can reduce total costs by up to 26.94 %, primarily through savings in transportation from biomass collection points to preprocessing facilities. This approach also enhances the efficiency of BMSC, enabling it to respond better to variable biomass availability and reduce environmental impacts. Further, the applicability of the optimization model is demonstrated through a real-life case study of a power plant in the state of Oregon, USA. This model provides valuable quantitative decision support for policymakers and energy stakeholders aiming at optimizing BMSC and contributing to global renewable energy targets.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125757"},"PeriodicalIF":10.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal comparison of floating bifacial and monofacial photovoltaic modules considering two laying configurations","authors":"Giuseppe Marco Tina ,&nbsp;Amr Osama ,&nbsp;Gaetano Mannino ,&nbsp;Antonio Gagliano ,&nbsp;Alessio Vincenzo Cucuzza ,&nbsp;Fabrizio Bizzarri","doi":"10.1016/j.apenergy.2025.125732","DOIUrl":"10.1016/j.apenergy.2025.125732","url":null,"abstract":"<div><div>The overall performance of PV modules is significantly affected by the design configuration, especially the bifacial module technology over the conventional monofacial ones. In land-based PV installation, the configuration of the PV array is usually subject to the area available. However, for the floating PV system (FPV), the area doesn't constrain the installation design. The presence of a water surface has a key impact on the operating status of the FPV module; nevertheless, installing the module in different configurations as landscape or portrait, can effectively influence the thermal behaviour of the module and thus the overall performance. Hence, this paper aims to analyse experimentally the performance of the FPV system installed in landscape configuration (L-FPV) and portrait configuration (P-FPV). Additionally, for a deeper evaluation, both bifacial and monofacial modules are investigated under the different mentioned configurations. The experimental setup consists of two sets of orientations, each having a typical rated power of different module technologies (monofacial/bifacial) available in “Enel Innovation Lab” in Catania (Italy). Measurements of seven months have been investigated for performance evaluation. The outcomes of this research revealed that for the same module technology, landscape configuration has a lower temperature compared to portrait configuration by around 1<span><math><msup><mrow></mrow><mo>°</mo></msup><mi>C</mi></math></span> for the bifacial modules and 1.71<span><math><msup><mrow></mrow><mo>°</mo></msup><mi>C</mi></math></span> for the monofacial modules. This led to a favorable daily array yield improvement by 3 % for the bifacial technology and 2.8 % for the monofacial one. Furthermore, thermal modeling is performed through coefficients optimization of thermal models for different module technologies and layouts for floating systems.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125732"},"PeriodicalIF":10.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harnessing anisotropy of phase change composites for taming thermal runaway and fast charging of lithium-ion batteries","authors":"Anirban Chakraborty ,&nbsp;Jooyoung Lee ,&nbsp;Choongho Yu","doi":"10.1016/j.apenergy.2025.125802","DOIUrl":"10.1016/j.apenergy.2025.125802","url":null,"abstract":"<div><div>Regulating temperature uniformly below self-ignition point in lithium-ion battery (LIB) is paramount for optimal performance and to avert potential thermal runaways. Localized heat accumulations or hot spots underscore the need for effective thermal management, demanding a delicate balance between rapid heat expulsion to an external sink and limiting heat propagation between neighboring cells using interstitial sheets typically placed between cells. This study presents a novel strategy employing laminate composites with dual thermal conductivities (k): high k_In-plane for efficient heat expulsion and low k_Out-of-plane to curb heat spread. The approach exploits laminate anisotropy to passively address the challenges of managing hot spots during fast charging and preventing thermal runaway propagation. High k composites, while prompt in heat transfer, can inadvertently trigger thermal runaway by propagating heat to neighboring cells. Conversely, low k composite hinder dispersion, causing severe heat accumulation. The proposed dual k approach strikes a balance, optimizing heat dissipation to a sink while restricting heat propagation between the cells. Expanded graphite promotes the in-plane thermal conduction while air gap in between reduces the out-of-plane heat conduction. Our results suggest that interstitial composites with high anisotropy whose k_In-plane and k_Out-of-plane are 30 and 0.5 W·m⁻¹·K⁻¹, respectively, could mitigate thermal runaway propagation, maintaining the surface of adjacent cells below the self-ignition temperature of 200 °C. Our findings underscore the importance of customizing the thermal properties of interstitial materials to efficiently balance heat transfer in LIBs, especially under abuse conditions. This customization is vital for enhancing the thermal management and overall safety of these battery systems. The proposed approach contributes to the safe and reliable deployment of LIBs across diverse applications.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125802"},"PeriodicalIF":10.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance characterization of lithium-ion battery cells within restricted operating range using an extended ragone plot","authors":"Sven Wiegelmann,&nbsp;Astrid Bensmann,&nbsp;Richard Hanke-Rauschenbach","doi":"10.1016/j.apenergy.2025.125704","DOIUrl":"10.1016/j.apenergy.2025.125704","url":null,"abstract":"<div><div>Lithium-ion battery systems play a crucial role in applications ranging from electric vehicles to grid storage, but their performance can vary significantly under different operating conditions. While extensive research has explored the non-linear relationship of the battery’s key performance metrics – energy and power – across the manufacturers’ permissible limits, the impacts of operating in a restricted range have not yet been sufficiently investigated. Restricting the available operating range, particularly the upper voltage limit, may be advantageous or even necessary for specific applications with harsh environmental conditions, potentially enhancing safety, efficiency, compatibility, and lifespan without substantially compromising performance. In order to investigate this trade-off, the power-based performance of three battery cells with different formats and chemistries is experimentally characterized and analyzed using an extended Ragone plot. To reduce experimental effort, we demonstrate a reconstruction-based approach to recalculate the Ragone plot for arbitrary voltage initialization limits by trimming the full-range dataset based on the preceding charge termination conditions. In the practically relevant range, deviations between the measured and reconstructed Ragone curves remain within <span><math><mrow><mo>≤</mo></mrow><mn>3</mn><mspace></mspace><mi>%</mi></math></span>, validated by an electrical and thermal assessment. By superimposing upper and lower operating limits, the extended Ragone plot enables an evaluation of battery performance under a restricted range without additional cell characterization measurements. Our findings thus provide a practical and efficient method for engineers and researchers, ideally supporting the decision-making in selecting, designing, or managing battery systems for application-specific energy storage solutions.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125704"},"PeriodicalIF":10.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Autonomy as empowerment: A taxonomic framework for analyzing energy autonomy in local flexibility markets","authors":"Mehdi Foroughi ,&nbsp;Matin Bagherpour ,&nbsp;Frank Eliassen ,&nbsp;Rahmatallah Poudineh","doi":"10.1016/j.apenergy.2025.125777","DOIUrl":"10.1016/j.apenergy.2025.125777","url":null,"abstract":"<div><div>Decentralized energy management in energy systems has led to the rise of the Local Flexibility Market (LFM). This market enables active prosumer participation at local levels, facilitating distributed flexibility resources and grid optimization. At its core, the LFM’s fundamental value resides in enabling energy autonomy, enabling prosumers to actively manage and exchange their flexibile resources. However, the concept of energy autonomy remains rooted in outdated notions of passive consumption and self-sufficiency. This traditional understanding hinders the full potential of these developments. Therefore, modern energy systems face a fundamental challenge: an outdated understanding of autonomy. The lack of a standardized contemporary definition of energy autonomy impedes effective comparison, selection, and regulation of autonomous solutions. To address this challenge, this paper develops a comprehensive framework with two key elements: a redefinition of energy autonomy and a multidimensional taxonomy for standardization. The focus is on the LFM, as this market leads the way in local energy trading and prosumer engagement. The framework serves as a tool to examine four key areas: communication, control, physical infrastructure, and learning. Through novel terminology and tailored metrics, it provides the structure to evaluate autonomy across market structures while accounting for their varying complexity and participant interactions. The framework was validated through an analysis of four leading LFM projects. This evaluation identified four key barriers to market development. First, regulatory frameworks suffer from ambiguous language. Second, current investment priorities remain narrowly focused. Third, automated systems lack sufficient explainability. Fourth, market access continues to limit aggregator participation. Accordingly, this work’s contribution is a transformative understanding of modern energy autonomy paradigms. These insights support decision-making in policy development, market design, and regulatory framework.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"389 ","pages":"Article 125777"},"PeriodicalIF":10.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}