Renewable Energy最新文献_第2页

Optimization of hybrid renewable energy systems for remote communities in northern Canada

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-24 DOI: 10.1016/j.renene.2025.122729

Mohammadmehdi Hosseini, William David Lubitz, Syeda Humaira Tasnim, Shohel Mahmud

{"title":"Optimization of hybrid renewable energy systems for remote communities in northern Canada","authors":"Mohammadmehdi Hosseini, William David Lubitz, Syeda Humaira Tasnim, Shohel Mahmud","doi":"10.1016/j.renene.2025.122729","DOIUrl":"10.1016/j.renene.2025.122729","url":null,"abstract":"<div><div>Electricity is currently provided in remote communities in Nunavut, Canada, using diesel generators. This study aims to identify the most cost-effective hybrid renewable energy systems by integrating photovoltaic panels and wind turbines to reduce carbon emissions and fuel costs associated with diesel generation. Two system configurations are considered: fully renewable energy systems and hybrid systems incorporating diesel generators. A genetic algorithm-based optimization approach is used to determine the optimal wind farm layout while considering wake effects. The hybrid system achieved levelized costs of electricity (LCOEs) of 0.30 $/kWh in Arviat, 0.35 $/kWh in Rankin Inlet, 0.29 $/kWh in Baker Lake, and 0.37 $/kWh in Sanikiluaq, significantly reducing energy costs compared to diesel-only systems. Additionally, the optimized hybrid configurations led to over 55 % reduction in greenhouse gas (GHG) emissions, while improving annual energy production by 20 % in Arviat and up to 15 % in Sanikiluaq. The study demonstrates that integrating wind and solar energy with existing diesel infrastructure provides a financially viable and environmentally sustainable pathway for energy transition in remote off-grid communities. These findings contribute to ongoing research on optimizing hybrid renewable energy systems for cold-climate regions, ensuring affordability, reliability, and emissions reduction.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"244 ","pages":"Article 122729"},"PeriodicalIF":9.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508980","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}

引用次数: 0

Non-catalytic hydrosolvolysis of Delonix regia biomass waste and analysis of products

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-24 DOI: 10.1016/j.renene.2025.122754

Diya Sen Gupta, Sneha Acharya, Nanda Kishore

{"title":"Non-catalytic hydrosolvolysis of Delonix regia biomass waste and analysis of products","authors":"Diya Sen Gupta, Sneha Acharya, Nanda Kishore","doi":"10.1016/j.renene.2025.122754","DOIUrl":"10.1016/j.renene.2025.122754","url":null,"abstract":"<div><div>The waste from <em>Delonix regia</em> plant was used as potential feedstock and its non-catalytic hydrosolvolysis using methanol solvent was carried out in a batch-type autoclave reactor under a hydrogen environment at moderate pressure and temperature conditions (180 °C, 200 °C and 250 °C). The key findings revealed that 200 °C is the optimal temperature, producing biocrude with a yield of 40.60 wt% and a higher heating value (HHV) of 25.3 MJ/kg. The present results are compared and found to be better than some of existing literature counterparts on non-catalytic hydrosolvolysis of other biomass feedstock. The biocrude comprised of phenolic compounds, esters, furan derivatives, methoxy compounds and alcohols. Biochar exhibited enhanced carbon content and reduced oxygen compared to raw biomass. Notably, the hydro-treatment process at these mild conditions outperformed non-catalytic and hydro-catalytic pyrolysis at a greater temperature of 600 °C in terms of fuel and physical properties of the liquid product. Thus, the present findings highlight the effectiveness of this process in enhancing the biocrude quality under mild conditions of temperature and hydrogen pressure.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"245 ","pages":"Article 122754"},"PeriodicalIF":9.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548674","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}

引用次数: 0

How does green investor entry affect corporate carbon performance? Evidence from China

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-24 DOI: 10.1016/j.renene.2025.122748

Maotao Liu , Xubing Fang

{"title":"How does green investor entry affect corporate carbon performance? Evidence from China","authors":"Maotao Liu , Xubing Fang","doi":"10.1016/j.renene.2025.122748","DOIUrl":"10.1016/j.renene.2025.122748","url":null,"abstract":"<div><div>As a special kind of institutional investor, green investors are an important driving force in promoting green and low-carbon development of enterprises. Using data from 2008 to 2020 of Chinese A-share non-financial listed firms, this study investigates how the green investor entry affect corporate carbon performance. Results show that green investor entry significantly enhances corporate carbon performance. Mechanism analysis reveals that green investor entry improves corporate carbon performance by improving ESG performance and enhancing environmental information disclosure quality. The positive effects are more pronounced in regions with stringent environmental regulations, heavily polluting industries, and non-state-owned enterprises. In addition, we find that green investor entry significantly improves firms' economic performance while enhancing their carbon performance, simultaneously realizing both economic enhancement and green development. Our results remain robust after a series of robustness and endogenous tests. Overall, our study not only provides direct micro-level evidence from developing economies regarding green investors' role in improving corporate carbon performance, but also offers critical insights for establishing robust green financial mechanisms to facilitate sustainable transformation.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"244 ","pages":"Article 122748"},"PeriodicalIF":9.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508979","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}

引用次数: 0

Dual-combustion chamber cycle utilizing biomass and geothermal energy: A comprehensive economic analysis and multi-objective optimization for enhanced multi-generation

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-24 DOI: 10.1016/j.renene.2025.122760

Shayan Rabet , S.M.S. Mahmoudi , Mortaza Yari , Saeed Soltani

{"title":"Dual-combustion chamber cycle utilizing biomass and geothermal energy: A comprehensive economic analysis and multi-objective optimization for enhanced multi-generation","authors":"Shayan Rabet , S.M.S. Mahmoudi , Mortaza Yari , Saeed Soltani","doi":"10.1016/j.renene.2025.122760","DOIUrl":"10.1016/j.renene.2025.122760","url":null,"abstract":"<div><div>This paper proposes a novel multi-generation system comprising a digester, a gasifier, a geothermal unit, a Kalina cycle, a multi-effect desalination, a flash desalination, and an organic flash cycle. Energy, exergy, and exergo-economic analyses are performed for the system, yielding a second law efficiency of 31.97 %, total power generation of 5416 kW, a heating rate of 584.6 kW, cooling rate of 25.34 kW, freshwater production of 72.36 kg/s, and total exergy destruction of 12,273.44 kW. The highest exergy destruction occurs in the multi-effect desalination subsystem at 4546 kW (37 % of the total), followed by the digester at 2798.26 kW (22.9 % of the total). The unit exergy cost of the system products is calculated as $31.88/GJ. With a freshwater price of $1.5/m<sup>3</sup> and an electricity price of $ 0.14/kWh, the payback period is obtained as 5.44 years. Using the Gray Wolf algorithm, multi-objective optimizations are performed for two scenarios resulting in optimal values for the first scenario with 33.54 % second law efficiency, 6538 kW power generation, and 75.56 kg/s freshwater production. For the second scenario, the second law efficiency is 33.96 %, with a power output of 6398 kW and a total unit exergy cost of the products amounting to $33.59/GJ.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"244 ","pages":"Article 122760"},"PeriodicalIF":9.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487788","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}

引用次数: 0

Valued peaks: Sustainable water allocation for small hydropower plants in an era of explicit ecological needs

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-24 DOI: 10.1016/j.renene.2025.122756

Faisal Bin Ashraf , Hannu Huuki , Ali Torabi Haghighi , Artti Juutinen , Atso Romakkaniemi , Hannu Marttila

{"title":"Valued peaks: Sustainable water allocation for small hydropower plants in an era of explicit ecological needs","authors":"Faisal Bin Ashraf , Hannu Huuki , Ali Torabi Haghighi , Artti Juutinen , Atso Romakkaniemi , Hannu Marttila","doi":"10.1016/j.renene.2025.122756","DOIUrl":"10.1016/j.renene.2025.122756","url":null,"abstract":"<div><div>Optimizing hydropower operations to balance economic profitability and support functioning ecosystem services is integral to river management policy. In this article, we propose a dynamic, constrained optimization framework for small hydropower plants (SHPs) to evaluate trade-offs between economic profitability and socio-ecological requirements. Specifically, we examine the balance between short-term losses in hydropower generation and the potential for compensatory benefits in the form of revenue from recreational ecosystem services, irrespective of the direct beneficiary. Our framework integrates a fish habitat model, a hydropower optimization model, and a recreational ecosystem service estimate to evaluate different environmental flow scenarios. The optimization process gives three outflow release scenarios, informed by previous streamflow realisations (dam inflow), and designed environmental flow constraints. The framework is applied and tested for the river Kuusinkijoki in North-eastern Finland, which is a habitat for migratory brown trout and grayling populations. We show that the revenue loss due to the environmental flow constraints arises through a reduction in revenue per generated energy unit and through a reduction in turbine efficiency. Additionally, the simulation results reveal that all the designed environmental flow constraints cannot be met simultaneously. Under the environmental flow scenario with both minimum flow and flow ramping rate constraints, the annual hydropower revenue decreases by 16.5 %. An annual increase of 8 % in recreational fishing visits offsets the revenue loss. The developed framework provides knowledge of the costs and benefits of hydropower environmental flow constraints and guides the prioritizing process of environmental measures.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"244 ","pages":"Article 122756"},"PeriodicalIF":9.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487859","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}

引用次数: 0

Techno-economic and environmental assessment of a photovoltaic-thermal (PV-T) solar dryer for habanero chili (Capsicum chinense): 4E (energy, economic, embodied and environmental) analysis

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-24 DOI: 10.1016/j.renene.2025.122758

Leslie A. Valencia Ceballos , Erick César López-Vidaña , Claudia K. Romero-Perez , Jorge Escobedo-Bretado , Octavio García-Valladares , Ignacio R. Martín Domínguez

{"title":"Techno-economic and environmental assessment of a photovoltaic-thermal (PV-T) solar dryer for habanero chili (Capsicum chinense): 4E (energy, economic, embodied and environmental) analysis","authors":"Leslie A. Valencia Ceballos , Erick César López-Vidaña , Claudia K. Romero-Perez , Jorge Escobedo-Bretado , Octavio García-Valladares , Ignacio R. Martín Domínguez","doi":"10.1016/j.renene.2025.122758","DOIUrl":"10.1016/j.renene.2025.122758","url":null,"abstract":"<div><div>In this work, the technical, economic, embodied, and environmental parameters of a thermal-photovoltaic solar dryer (PVT-SD) were evaluated in three possible operation modes due to its coupling versatility: solar mode (SM), hybrid mode (HM), and conventional mode (CM). For the experimental evaluation, habanero chili was dehydrated. The habanero pepper samples required 18.6 h, 14.5 h, and 13.5 h to reach the final moisture content for the SM, HM, and CM modes<strong>.</strong> The maximum and minimum drying rates were around 0.025 and 0.001 g H<sub>2</sub>O/g d.m. Min<sup>−1</sup> in all drying modes. The SM, HM, and CM configuration equipment investment costs were estimated at USD 6560.16, USD 9595.90, and USD 4961.20, respectively. The analysis of the present value in 20 years shows estimated savings of 26,258.70 USD and 6717.74 USD are obtained using SM and HM, respectively, from using solar energy instead of LP gas. The embodied energy and EPBT were estimated at 15935.03 kWh (<em>EPBT</em> 1.22 years), 16312.29 kWh (<em>EPBT</em> 1.25 years), and 3186.88 kWh for the SM, HM, and CM modes, respectively. This versatile system can operate even in the least environmentally favorable conditions because it can store energy and use conventional backup if necessary.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"245 ","pages":"Article 122758"},"PeriodicalIF":9.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529359","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}

引用次数: 0

Comparative study on heating performance and economy of air source heat pump coupled with evacuated tube and flat plate collector respectively

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-24 DOI: 10.1016/j.renene.2025.122759

Zijiao Jia , Jinping Li , Panpan Zhai , Vojislav Novakovic , Yadong Cao

{"title":"Comparative study on heating performance and economy of air source heat pump coupled with evacuated tube and flat plate collector respectively","authors":"Zijiao Jia , Jinping Li , Panpan Zhai , Vojislav Novakovic , Yadong Cao","doi":"10.1016/j.renene.2025.122759","DOIUrl":"10.1016/j.renene.2025.122759","url":null,"abstract":"<div><div>Solar evacuated tube collector (ETC) and flat plate collector (FPC), as cost-effective technology for solar utilization, their integration with air source heat pump (ASHP) has shown potential for reducing heating cost. However, a comprehensive comparative study of performance and economy of ETC coupled with ASHP (ETC-ASHP) and FPC coupled with ASHP (FPC-ASHP) heating system is lacking. This study utilized experiment and TRNSYS simulation to compare the performance of ETC-ASHP and FPC-ASHP systems in a 120 m<sup>2</sup> building. The results indicate that ETC-ASHP demonstrated better performance and stability. In contrast, FPC-ASHP responded more quickly to changes in solar radiation and ambient temperature enabling faster mode switch. In heating season, ETC-ASHP performed better than FPC-ASHP, with a 15.5 % higher heat collection efficiency, a 7.0 % higher energy efficiency ratio, saved 377 kW h of electricity, reduced dynamic payback period by 0.95 years, and additional reduction of 407 kg in CO<sub>2</sub> emissions. ETC-ASHP and FPC-ASHP operated in ASHP, solar assisted heat pump (SAHP), and solar direct supply (SD) three heating modes with respective proportions of heating duration being 25.7 %, 46.5 %, 27.8 %, and 36.5 %, 47.7 %, 15.8 %. Based on the experiment and simulation results, the ETC-ASHP was more suitable for rural winter heating application in cold regions.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"245 ","pages":"Article 122759"},"PeriodicalIF":9.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143528673","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}

引用次数: 0

Design of a business model for competitive end-of-life performance of photovoltaic systems in Brazil

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-24 DOI: 10.1016/j.renene.2025.122755

Júlia Possebon Spellmeier , Carmen Brum Rosa , Paula Donaduzzi Rigo , Mario Fernando Mello , Marcelo Hoss

{"title":"Design of a business model for competitive end-of-life performance of photovoltaic systems in Brazil","authors":"Júlia Possebon Spellmeier , Carmen Brum Rosa , Paula Donaduzzi Rigo , Mario Fernando Mello , Marcelo Hoss","doi":"10.1016/j.renene.2025.122755","DOIUrl":"10.1016/j.renene.2025.122755","url":null,"abstract":"<div><div>The solar energy market has experienced record growth worldwide in recent years, leading to a significant increase in the production and installation of photovoltaic systems. As these systems reach the end of their useful life, managing photovoltaic waste becomes a critical challenge and an opportunity for innovation. This study aims to develop a business model that creates, delivers, and captures value from end-of-life photovoltaic systems, contributing to the sustainability and competitiveness of this sector in Brazil. The research identifies critical success factors influencing the competitiveness of end-of-life photovoltaic management through a systematic literature review. Furthermore, it maps relationships between stakeholders in the value chain by reviewing grey literature. Additionally, a statistical content analysis captures perspectives on challenges and opportunities of photovoltaic end-of-life through a data collection instrument. Based on these findings, a business model was designed using the business model canvas, incorporating a minimum viable product to test its viability. The results highlight economic, technical, regulatory, and socio-environmental factors driving a sustainable end-of-life photovoltaic market. The proposed model facilitates the integration of reverse logistics, recycling, and reuse strategies, offering a structured path towards a circular economy in the Brazilian photovoltaic sector.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"245 ","pages":"Article 122755"},"PeriodicalIF":9.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548677","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}

引用次数: 0

Analysis of a novel PVT dryer using a sustainable control approach

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-22 DOI: 10.1016/j.renene.2025.122728

Fazlı Bayrak , Mustafa Aktaş , Ahmet Aktaş , Seyfi Şevik , Burak Aktekeli , Yaren Güven

{"title":"Analysis of a novel PVT dryer using a sustainable control approach","authors":"Fazlı Bayrak , Mustafa Aktaş , Ahmet Aktaş , Seyfi Şevik , Burak Aktekeli , Yaren Güven","doi":"10.1016/j.renene.2025.122728","DOIUrl":"10.1016/j.renene.2025.122728","url":null,"abstract":"<div><div>This study aimed to improve a product-focused approach for enhancing electrical and drying efficiency by utilizing a novel photovoltaic thermal (PVT) collector and a temperature control algorithm, as opposed to existing fixed implementations. Apple slices were dried in the variable air volume PVT dryer (VAVPVTD) and constant air volume PVT dryer (CAVPVTD) for desirable drying efficiency at varying air velocities. The performance of the VAVPVTD, which provides homogeneous cooling with the novel design and controls the air volume according to the surface temperature of the PV with the created algorithm, was compared to the CAVPVT. While the average surface temperature of PVT in high air volume CAVPVTD (CAVPVTD-HAV) was 5.76 % and 5.63 % lower daily, respectively, the values in VAVPVTD were 7.15 % and 4.26 % lower compared to CAVPVTD. The maximum electrical efficiency was found to be 12.51 %, 11.96 %, and 12.57 % on days 1, 3 and 4, respectively. In terms of average thermal efficiencies, Day 3's highest value was 39.05 % in CAVPVT, while Day 3's lowest value was 28.67 % in VAVPVT. Although VAV control significantly increases the electrical efficiency in PVT, the thermal efficiency was lower compared to CAVPVT. Despite the uniform temperature distribution and the favorable impact of the VAV control application on electrical efficiency, thermal efficiency was adversely impacted based on the temperature that was chosen.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"245 ","pages":"Article 122728"},"PeriodicalIF":9.0,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529361","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}

引用次数: 0

HEFESTO: A novel tool for fast calculation and preliminary design of heliostat fields HEFESTO：定日镜场快速计算和初步设计的新工具

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-02-22 DOI: 10.1016/j.renene.2025.122736

Mario Biencinto , Jesús Fernández-Reche , Antonio Luis Ávila-Marín

{"title":"HEFESTO: A novel tool for fast calculation and preliminary design of heliostat fields","authors":"Mario Biencinto , Jesús Fernández-Reche , Antonio Luis Ávila-Marín","doi":"10.1016/j.renene.2025.122736","DOIUrl":"10.1016/j.renene.2025.122736","url":null,"abstract":"<div><div>This work introduces HEFESTO, a novel and innovative software tool conceived for the efficient estimation and preliminary design of heliostat fields in central receiver systems. The tool incorporates advanced methods for evaluating four key efficiency factors: cosine effect, atmospheric attenuation, shadowing and blocking, and spillage. A novel attenuation model based on aerosol optical depth offers enhanced flexibility and accuracy for various visibility conditions. Additionally, a new spillage estimation method leverages elliptical approximations of flux images, while a fast and efficient shadowing and blocking model significantly reduces computation times. HEFESTO also integrates reference models from the literature, such as the standard projection method for shadowing and blocking and the Hermite expansion for spillage, along with advanced solar field configurations, including biomimetic spirals and dense packing patterns. Validation using real data from 3 heliostats of the CESA-I heliostat field, ray-tracing simulations and entire field layouts with state-of-the-art design tools demonstrates strong agreement. Comparative analyses across field configurations and solar positions reveal that HEFESTO achieves up to a 10-fold speedup for shadowing and blocking (accuracy within 0.4 %) and 5-fold speedup for spillage (accuracy within 0.6 %) compared to standard methods, making it a powerful tool for optimizing heliostat field designs.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"245 ","pages":"Article 122736"},"PeriodicalIF":9.0,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143528674","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}

引用次数: 0