Journal of Cleaner Production最新文献

{"title":"Machine learning prediction and analysis for LFL of C0-C2 combustible gases and blends under wide operating conditions","authors":"Mingkun Zhang, Wenchao Zhu, Dan Shen, Xiangyu Meng, Wuqiang Long, Mingshu Bi","doi":"10.1016/j.jclepro.2026.149316","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149316","url":null,"abstract":"The safe deployment of low- and zero-carbon fuels requires reliable prediction of lower flammability limits (LFLs) over broad temperature, pressure, and composition ranges. This need is increasingly important for hydrogen, ammonia, alcohols, ethers, and C<ce:inf loc=\"post\">0</ce:inf>-C<ce:inf loc=\"post\">2</ce:inf> combustible-gas blends used in storage, transport, and energy-conversion systems. However, conventional LFL prediction methods tend to be inaccurate for gases with a reference Lewis-number factor below unity (Le<ce:inf loc=\"post\">ref</ce:inf> &lt; 1), particularly hydrogen and hydrogen-rich mixtures. They are also difficult to apply efficiently to multi-component blends under variable operating conditions because direct extinction-limit calculations require repeated flame simulations and boundary tracking. A C<ce:inf loc=\"post\">0</ce:inf>–C<ce:inf loc=\"post\">2</ce:inf> reaction mechanism with 110 species and 682 reactions was developed. In addition, an enhanced counterflow premixed flame model was introduced, incorporating flame stretch, radiative heat loss, and an Le<ce:inf loc=\"post\">ref</ce:inf>-based stability correction, which significantly reduced prediction errors for combustible gases with Le<ce:inf loc=\"post\">ref</ce:inf> &lt; 1. Sensitivity analysis and symbolic regression over 250–500 K and 0.05–2 MPa show that increasing temperature consistently lowers LFL, whereas pressure effects are nonlinear and gas dependent. To reduce the computational burden of blend prediction, eight machine learning algorithms were benchmarked, and the optimal model was coupled with the Le Chatelier's principle as a rapid surrogate for multi-component LFL estimation. Validation against 793 experimental data points confirms that the proposed framework can accurately predict multi-component LFLs while greatly reducing the need for direct flame simulations. The trained model provides predictions within seconds, offering a practical tool for large-scale parametric screening, safety-boundary assessment and cleaner utilization of low-carbon combustible-gas blends in storage, transport, and energy-conversion applications.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"137 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interface interaction between yeast and β-glucan drives soil aggregate stabilization: molecular mechanisms and bioremediation functions","authors":"Yi Yan, Bo Bai, Dong Hui, Zhiye Ma, Yaxin Sun, Yu Kang, Meng Mei","doi":"10.1016/j.jclepro.2026.149308","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149308","url":null,"abstract":"Soil aggregates formed during microbial-mediated soil remediation contribute critically to consolidating soil particles, enhancing soil stability, and improving soil permeability. However, the molecular-scale interaction mechanisms among microorganisms, their extracellular polymeric substances (EPS), and soil minerals during aggregate formation remain unclear. This study systematically elucidates the molecular mechanism underlying soil aggregate formation in a model yeast-EPS (β-glucan)-mineral system specifically designed to address soil structure degradation in the Loess Plateau. By integrating multi-scale experimental approaches with density functional theory (DFT) calculations, we demonstrate that β-glucan mediates stable adhesion between yeast cells and soil-driven SiO<ce:inf loc=\"post\">2</ce:inf> particles primarily through van der Waals forces, thereby facilitating the assembly of a three-dimensional “microorganism–EPS–mineral” composite architecture. The co-application of yeast and β-glucan increased the proportion of macroaggregates (&gt;0.25 mm) to 22.58%, compared to only 2.49% in the unamended control. Notably, owing to yeast's intrinsic dormancy response under environmental stress, the aggregates exhibited remarkable resilience against aging and repeated freeze-thaw cycles. This bioengineered system significantly improved soil functions. Total organic carbon (TOC) content increased from 2.57 g/kg to 20.90 g/kg, while total dissolved solids (TDS) remained stably below 2.5 g/kg through yeast metabolic regulation. Furthermore, the soil erodibility factor and fractal dimension analysis confirmed that the β-glucan/yeast/loess aggregate significantly enhanced soil structural integrity and markedly reduced erosion susceptibility. Our findings underscore the promise of biologically driven remediation strategies for restoring degraded soils in the Loess Plateau and provide mechanistic insights that may inform future studies on complex interfacial interactions among microorganisms, organic polymers, and mineral surfaces.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"16 6 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fewer children, higher carbon intensity? Exploring household carbon emission intensity in low-fertility contexts","authors":"Chunlei Xie, Xueli Yang, Changlin Yang, Yongping Wang","doi":"10.1016/j.jclepro.2026.149297","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149297","url":null,"abstract":"Low fertility and global warming have become pressing global concerns. However, systematic research on how low fertility and regional disparities affect household carbon emission intensity remains limited. To address this gap, we adopt a micro level household structure perspective and utilize CFPS panel data for 2014-2022 to analyze the temporal dynamics of household carbon emission intensity across China's eight major economic zones. On this basis, a bidirectional fixed-effects model, along with mediation and moderation analyses, is employed to explore the impact of low fertility on household carbon emission intensity and to further identify its transmission channels. Results show that, in terms of temporal trends, low fertility and household carbon emission intensity display a synchronous relationship, with notable stage-specific and regional differences. In terms of empirical results, low fertility raises household carbon emission intensity, with the effect being especially pronounced in regions with very low-fertility. The results further indicate that scale effects and neighborhood effects are key channels influencing the relationship between the two, while environmental awareness and internet use play moderating roles. Heterogeneity analysis reveals that families without intergenerational care, households with a first-born girl, developmental consumption and those in the Northeast and Northern coastal regions all exert an amplifying effect on household carbon emission intensity. Therefore, it is essential to align the consumption patterns of low-fertility households with national and regional carbon emissions, offering valuable policy insights for the integrated optimization of population and low-carbon strategies.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"11 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uncovering the burden shifting of data center cooling: System-level water-energy-carbon optimization for urban infrastructure","authors":"Parth Brahmbhatt, Mohammad Hemmati, Javiera Vergara-Zambrano, Vassilis M. Charitopoulos, Styliani Avraamidou","doi":"10.1016/j.jclepro.2026.149201","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149201","url":null,"abstract":"The rapid growth of data centers (DCs), driven by artificial intelligence and cloud computing, presents a critical resource challenge for urban infrastructure planning across the water-energy-carbon nexus. Traditional energy models often treat DC integration merely as an isolated electrical load, failing to capture weather-dependent cooling demands and the resulting “burden-shifting” between direct on-site water consumption and the indirect water footprint of the regional grid. To bridge this gap, this study introduces a multi-scale mixed-integer linear programming (MILP) optimization framework for urban capacity expansion planning that explicitly integrates hourly climate data with the Power Usage Effectiveness (PUE) and Water Usage Effectiveness (WUE) of distinct DC cooling architectures. Applied to a representative urban microgrid, the model simulates a multi-year horizon at an hourly resolution to evaluate two contrasting DC cooling strategies: evaporative cooling and closed-loop air chillers. Our results reveal a critical trade-off dictated by the cooling architecture. Evaporative cooling keeps energy use and indirect burdens low, but consumes large volumes of water on-site. Air chillers eliminate this direct consumption, yet their higher electricity demand raises indirect grid-related water consumption and carbon emissions in tandem. Direct water, indirect water, and carbon are therefore tightly coupled through the cooling choice: because the two indirect burdens both track grid electricity, decarbonizing the grid lowers them together, leaving evaporative cooling the lower-cost route to deep decarbonization. These system-level findings demonstrate that facility-specific metrics systematically obscure the burden-shifting dynamics that govern the true sustainability cost of data center integration in urban grids.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"42 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards cleaner rare earth metal production: Techno-economic and life cycle assessment of direct Nd2O3 pyroelectroreduction in low-temperature chloride-based molten salt","authors":"Mohsen Fakourihassanabadi, Gholamreza Roohollahi, Javad Vahabzadeh Pasikhani, Mohammad Latifi","doi":"10.1016/j.jclepro.2026.149289","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149289","url":null,"abstract":"Industrial neodymium metal production is currently dominated by high-temperature fluoride-based molten salt electrolysis, a process plagued by high energy demand, aggressive corrosion, fluoride waste generation, and significant greenhouse gas emissions. This work evaluates a cleaner alternative using a chloride electrolyte, in which Neodymium metal (Nd) is produced in a LiCl-KCl eutectic at 450°C. The analyzed route incorporates Neodymium (III) oxide (Nd<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf>) pellets, a novel approach that enables stable electroreduction, reduces material losses, enhances current efficiency, and simplifies solid handling compared to conventional dissolved feedstocks. We compare this method against the established LiF-NdF<ce:inf loc=\"post\">3</ce:inf> process operating near 1000°C. Capital and operating expenditures were evaluated using validated cost-scaling correlations, an electrowinning-specific CapEx model, and experimentally supported process assumptions, with a novel density-based correction factor introduced to reconcile discrepancies and improve prediction accuracy. Our results demonstrate that the chloride-based pellet process operates with substantially lower energy input, reduced anode consumption, and lower CapEx and OpEx across all evaluated production scales.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"52 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial electron redistribution stabilizes Cu-centered redox cycling for efficient Fenton-like catalysis","authors":"Xiao-Ying Li, Ruo-Lan Xu, Ren Zhu, Ting-Yu Zhang, Wen-Rui Wang, Wu-Jun Liu, Hong Jiang","doi":"10.1016/j.jclepro.2026.149290","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149290","url":null,"abstract":"Efficient degradation of organic pollutants via Fenton-like catalysis remains a challenge due to the instability of the redox cycle under prolonged operation. Herein, we construct an interface-engineered FeCu layered double hydroxide/g-C<ce:inf loc=\"post\">3</ce:inf>N<ce:inf loc=\"post\">4</ce:inf> heterostructure (FeCu-LDH/g-C<ce:inf loc=\"post\">3</ce:inf>N<ce:inf loc=\"post\">4</ce:inf>) to establish an internal electron-supply pathway for stabilizing Cu-centered redox cycling. Spectroscopic analyses, together with DFT calculations, support interface-induced electron redistribution, which favors electron depletion in the g-C<ce:inf loc=\"post\">3</ce:inf>N<ce:inf loc=\"post\">4</ce:inf> framework and preferential electron enrichment at Cu sites, promoting partial Cu<ce:sup loc=\"post\">2+</ce:sup> reduction to Cu<ce:sup loc=\"post\">+</ce:sup>, while Fe<ce:sup loc=\"post\">3+</ce:sup> remains largely stable as a structural and electronic modulator. Benefiting from this site-selective electronic regulation, FeCu-LDH/g-C<ce:inf loc=\"post\">3</ce:inf>N<ce:inf loc=\"post\">4</ce:inf> exhibits markedly accelerated H<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">2</ce:inf> activation and achieves near-complete Rhodamine B degradation within 20 min, with a pseudo-first-order rate constant 4.6 times that of pristine FeCu-LDH. Active-site substitution confirms Cu as the primary redox center, while ROS quenching and electron paramagnetic resonance analyses identify <ce:sup loc=\"pre\">1</ce:sup>O<ce:inf loc=\"post\">2</ce:inf> as the dominant oxidative species, accompanied by •OH and O<ce:inf loc=\"post\">2</ce:inf><ce:sup loc=\"post\">•-</ce:sup>. The catalyst further shows robust recyclability, broad pH adaptability, and strong tolerance to humic substances and common ions. This work demonstrates a Cu-site-selective interfacial electron-regulation strategy for designing stable and efficient Fenton-like catalysts.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"8 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supply chain carbon penalties of U.S. carbon capture deployment: An EEIO-based assessment of net abatement performance","authors":"Gaurav Kattel, Samir Shrestha, Jiwoo Shin, Hana Kim, Jun-Ki Choi","doi":"10.1016/j.jclepro.2026.149270","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149270","url":null,"abstract":"Carbon capture and storage (CCS) is increasingly viewed as an essential option for decarbonizing emissions-intensive sectors, yet its net abatement value depends not only on captured emissions at host facilities but also on the economy-wide effects induced by deployment spending. Existing studies rarely integrate output propagation, supply-chain emissions added, emissions removed, and net performance indicators within a single U.S.-wide high-resolution framework. This study addresses that gap by developing an environmentally extended input-output model to quantify the economy-wide production impacts, supply chain carbon penalties, and net performance of CCS deployment in the United States. Annualized capital and operating expenditures for CCS were represented as an exogenous final-demand shock and mapped into the 402-sector USEEIO v2.5 framework, while emissions were evaluated using sector-specific capture fractions. For the modeled 90% capture scenario in electricity, lime and gypsum products, cement, and iron and steel, gross CO<ce:inf loc=\"post\">2</ce:inf> removal reached 1.14 Gt, supply-chain activity added 0.08 Gt CO<ce:inf loc=\"post\">2</ce:inf>, and net abatement remained substantial at 1.06 Gt CO<ce:inf loc=\"post\">2</ce:inf>. The corresponding emission penalty ratio was around 67 kg CO<ce:inf loc=\"post\">2</ce:inf> added per ton removed, and the net abatement cost was 73 $/tCO<ce:inf loc=\"post\">2</ce:inf>. Scenario analysis showed that a 20% reduction in total CCS cost lowered the emission penalty ratio by 19% and the net abatement cost by 20%, whereas a 90% reduction in electricity-sector CO<ce:inf loc=\"post\">2</ce:inf> intensity lowered the penalty ratio by 59% while producing only a marginal reduction in net abatement cost. These results indicate that CCS can deliver substantial net abatement, with cost reductions primarily improving economic performance and electricity-sector decarbonization providing greater leverage for reducing the upstream carbon penalty. Because the analysis uses a static national EEIO structure, it does not resolve regional heterogeneity, facility-level technological differences, or endogenous changes in economic and production relationships over time.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"6 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Annual energy use and economic performance of rice-based cropping systems: A three-year field study in Southwest China","authors":"Chuanhai Shu, Qingyue Cheng, Binbin Liu, Hongkun Xie, Yuanqing Shi, Mingming Hu, Hao Fu, Peng Ma, Na Li, Zhonglin Wang, Zongkui Chen, Yongjian Sun, Zhiyuan Yang, Jun Ma","doi":"10.1016/j.jclepro.2026.149274","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149274","url":null,"abstract":"Rice-based cropping systems are central to food security in Southwest China, yet integrated energy–economic assessments across diverse rotations remain scarce, particularly for rice-green manure and rice-vegetable systems. A three-year field experiment (2022–2025) was conducted in a typical rice-growing region of Southwest China to compare four upland–paddy rotations, namely wheat-rice (RW), rapeseed-rice (RR), green vegetables-rice (RG), and <ce:italic>Vicia villosa</ce:italic> var.-rice (RV), against a fallow–rice (RF) control, using an integrated energy input–output and cost–benefit framework. Results showed that RG recorded the highest annual energy input (51,754 MJ ha<ce:sup loc=\"post\">−1</ce:sup>), dominated by nitrogen fertilizer, while RV had the lowest (31,345 MJ ha<ce:sup loc=\"post\">−1</ce:sup>) without chemical fertilizer, corresponding to 84% and 12% increases over RF. Energy use efficiency (EUE) diverged even more markedly: RV achieved the highest annual EUE (25.37), with a dry-season EUE of 130.75, whereas RG had the lowest (8.14) despite the highest grain-equivalent yield (22,547 kg ha<ce:sup loc=\"post\">−1</ce:sup>). Economic assessment revealed a clear efficiency–profitability trade-off. RG generated the highest net returns (5924 USD ha<ce:sup loc=\"post\">−1</ce:sup>, benefit–cost ratio 1.11); RR and RW were intermediate (0.82 and 0.64); and RV yielded the lowest (1274 USD ha<ce:sup loc=\"post\">−1</ce:sup>), as green manure provides no direct commodity income. The systems were thus classified into three patterns: high input, high output and low efficiency (RG); balanced (RW and RR); and low input, high efficiency and low return (RV). These findings provide quantitative evidence for region-specific strategies. RG with enhanced nutrient management is recommended for peri-urban areas, RR and RW for major grain-producing regions, and RV with ecological compensation for ecologically sensitive zones, thereby supporting the green transformation of rice-based agriculture.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"16 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing a phased implementation strategy for greenhouse gas mitigation in Korea's cement industry with the MESSAGEix model","authors":"Changwoo Lee, Hakyoung Kim, Sowon Yoon","doi":"10.1016/j.jclepro.2026.149231","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149231","url":null,"abstract":"The cement industry is difficult to decarbonize because fuel-combustion emissions and process emissions from limestone calcination occur simultaneously. This study develops a Korea-specific MESSAGEix-based bottom-up optimization model that integrates energy and material flows in the cement production system. Scenario analysis is conducted to distinguish reductions in total greenhouse gas emissions from reductions in clinker-specific emission intensity and to quantify the phase-specific roles and deployment timing of product and material substitution, process technology substitution, and CO<ce:inf loc=\"post\">2</ce:inf> capture and storage (CCS) through 2050. The results indicate that expanding blended cement and increasing supplementary cementitious materials (SCMs) content in Portland cement can provide immediate mitigation and cost-saving potential by reducing clinker demand. Advanced kiln and raw mill technologies become increasingly important for lowering clinker-specific emission intensity in the medium term. In the long term, low-temperature calcination and CCS are required to manage residual process emissions under a 2050 carbon-neutrality constraint. These findings suggest that Korea's cement sector decarbonization requires a sequential portfolio strategy combining near-term reduction in clinker demand, mid-term process innovation, and long-term residual-emission management.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"1 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Average photon energy based solar spectrum reconstruction for building-oriented TMY databases","authors":"Shuo Ma, Yanyun Zhang, Jingchao Xie, Yupeng Wu, Haifeng Wu, Peng Xue, Lin Li","doi":"10.1016/j.jclepro.2026.149233","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149233","url":null,"abstract":"With the transition of solar energy utilization toward a spectrum-regulation paradigm, solar spectral irradiance distribution (SID) has become increasingly important for building energy and photovoltaic (PV) applications. However, conventional typical meteorological year (TMY) databases generally lack spectral information, limiting their use in advanced energy analyses. To address this challenge, this study proposes a decoupled shape-intensity data-driven framework for high-fidelity solar spectrum reconstruction and TMY database enhancement featuring three core innovations. First, a shape-intensity decoupling mechanism is proposed, in which average photon energy (APE) characterizes spectral morphology while global horizontal irradiance (GHI) independently determines spectral intensity, enabling high-resolution spectral reconstruction from low-dimensional meteorological inputs. Second, an APE-GHI dual-variable spectral representation paradigm is established, providing a lightweight and data-driven alternative to conventional radiative transfer models. Third, this study pioneers the quantitative spectral enhancement and diagnostic analysis of mainstream TMY databases, revealing systematic spectral discrepancies among different data sources and climatic regions. The Random Forest model (RF) achieves an <mml:math altimg=\"si1.svg\"><mml:mrow><mml:msup><mml:mrow><mml:mspace width=\"0.25em\"></mml:mspace><mml:mi>R</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msup></mml:mrow></mml:math> of 0.949 with an <mml:math altimg=\"si2.svg\"><mml:mrow><mml:mi>R</mml:mi><mml:mi>M</mml:mi><mml:mi>S</mml:mi><mml:mi>E</mml:mi></mml:mrow></mml:math> of 0.009 eV for APE prediction while the reconstructed spectra exhibit an average error of 0.0177 <mml:math altimg=\"si3.svg\"><mml:mrow><mml:mi>W</mml:mi><mml:mo linebreak=\"goodbreak\" linebreakstyle=\"after\">·</mml:mo><mml:msup><mml:mi>m</mml:mi><mml:mrow><mml:mo>−</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:msup><mml:mo linebreak=\"goodbreak\" linebreakstyle=\"after\">·</mml:mo><mml:msup><mml:mrow><mml:mi>n</mml:mi><mml:mi>m</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math> under diverse atmospheric conditions. Furthermore, the proposed multi-input prediction strategy maintains an <mml:math altimg=\"si4.svg\"><mml:mrow><mml:msup><mml:mi>R</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:mrow></mml:math> above 0.866 even without irradiance input, demonstrating adequate adaptability in data-scarce scenarios. This study provides a low-cost and scalable framework for enriching building-oriented TMY databases with dynamic spectral information, supporting advanced photovoltaic evaluation and spectrally responsive energy analyses.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"1 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}