Journal of Renewable and Sustainable Energy最新文献

Impact of photovoltaic power generation on poverty alleviation in Jiangsu, China 光伏发电对中国江苏扶贫工作的影响

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0208522

Wenbo Li, Jiaxin Huang, LingJing Kong, Dongzhen Liang

引用次数: 0

Performance analysis and configuration method optimization of AA-CAES-based air storage tanks 基于 AA-CAES 的储气罐性能分析和配置方法优化

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0206283

Wenlong Zhang, Yufei Zhang, Xiangdong Li, Ruixiong Li, Huanran Wang, Peng Jin, Junyu Du, Yaoguang Song

{"title":"Performance analysis and configuration method optimization of AA-CAES-based air storage tanks","authors":"Wenlong Zhang, Yufei Zhang, Xiangdong Li, Ruixiong Li, Huanran Wang, Peng Jin, Junyu Du, Yaoguang Song","doi":"10.1063/5.0206283","DOIUrl":"https://doi.org/10.1063/5.0206283","url":null,"abstract":"To improve the performance of the compressed air energy storage (CAES) system, flow and heat transfer in different air storage tank (AST) configurations are investigated using numerical simulations after the numerical model has been experimentally validated. System performance for different AST placement methods is analyzed through numerical simulations integrated with the thermodynamic model of advanced adiabatic compressed air energy storage (AA-CAES). An in-depth study examines the impact of key system parameters on system performance with different AST configurations. Based on these analyses, the AA-CAES system with a constant volume of AST is optimized. The results indicate that horizontal placement of the AST improves heat transfer capability within the same working pressure range but results in slightly lower energy storage efficiency, achieving 64.61% compared to 65.50% for vertical placement. However, horizontal placement offers higher energy storage density, achieving 3.54 kW h/m3 under specific conditions, compared to 3.14 kW h/m3 for vertical placement. As the energy storage flow rate increases, exceeding the critical flow rate significantly improves heat transfer in vertically placed ASTs, thus narrowing the energy storage density gap between configurations. Increased turbine efficiency, additional external heat sources, and further utilization of compression heat provide more significant performance improvements for the AA-CAES with the AST placed horizontally compared to vertically. Compared to the AA-CAES with vertically placed ASTs, the configuration of the ASTs is optimized to enhance the electrical output of the AA-CAES by 76.4 MW h and reduce the input by 78.9 MW h at a storage flow rate of 0.5 kg/s.","PeriodicalId":16953,"journal":{"name":"Journal of Renewable and Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141716758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Production of green hydrogen in Brazil for exportation from desalinated seawater using energy generated by heliothermal, photovoltaic, and wind plants 利用日热发电厂、光伏发电厂和风力发电厂产生的能源，在巴西利用淡化海水生产绿色氢气并出口

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0206514

José Henrique Martins Neto

{"title":"Production of green hydrogen in Brazil for exportation from desalinated seawater using energy generated by heliothermal, photovoltaic, and wind plants","authors":"José Henrique Martins Neto","doi":"10.1063/5.0206514","DOIUrl":"https://doi.org/10.1063/5.0206514","url":null,"abstract":"A current global trend is the production of green hydrogen via electrolysis of fresh water, preferably extracted from regions that have an abundance of renewable energy, to contribute to the mitigation of global warming. Despite being considered a source of fresh water, Brazil is experiencing a water crisis, with a shortage of water to meet agriculture and hydroelectric generation due to climate effects that affect the water cycle. With the forecast of increasing population and increasing demand for fresh water for consumption, agriculture, and industry, it is necessary to investigate opportunities for the generation of green hydrogen. This article presents results of technical and economic feasibility analyses of eight green hydrogen production systems for export, derived from two main concepts of seawater desalination plants aimed at preserving freshwater for other more noble purposes. All the analyzed systems use electrical and (or) thermal energy generation plants derived from solar and wind energy, with emphasis on heliothermal energy concentration systems. It is observed that the heliothermal systems, generators of electric and thermal energy, require higher investment costs; however, they have hydrogen production costs compatible with those of the other systems and dispatchable daily production of hydrogen and desalinated water. Furthermore, a system that combines thermal energy from a heliothermal plant to drive a thermal desalination plant and electrical energy from photovoltaic and wind plants to drive the electrolyzers was very well classified. Finally, it is verified that desalination plants have negligible investment cost compared to the cost of power and hydrogen plants.","PeriodicalId":16953,"journal":{"name":"Journal of Renewable and Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141849152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Assessing rural energy poverty and early warning based on long-run evolution for clean energy transition in China 基于长期演化的中国农村能源贫困评估与清洁能源转型预警

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0209376

S. Yin, Man Wang, Yaqi Shi, Yumeng Zhao

{"title":"Assessing rural energy poverty and early warning based on long-run evolution for clean energy transition in China","authors":"S. Yin, Man Wang, Yaqi Shi, Yumeng Zhao","doi":"10.1063/5.0209376","DOIUrl":"https://doi.org/10.1063/5.0209376","url":null,"abstract":"Rural China grapples with pervasive energy poverty. This study aims to measure China's rural energy poverty and propose early warning strategies. It establishes a rural energy relative poverty evaluation system based on four dimensions: energy service effectiveness, consumption cleanliness, management integrity, and development sustainability. Using the Analytic Hierarchy Process-Criteria Importance Though Intercriteria Correlation-Technique for Order Preference by Similarity to Ideal Solution model, it calculates rural energy poverty indices for Chinese provinces, while ward cluster analysis sets regional and hierarchical early warning criteria. Findings indicate: (1) China's rural energy poverty index varies widely, with a low range of 0.49–0.52 and a high range above 0.65. The top 14 regions average a rural energy poverty index of 0.62. (2) Over 2015–2021, there is a 9.70% decrease in the index, indicating a general downward trend. While rural energy services' efficiency and management integrity improve, consumption cleanliness and development sustainability decline. (3) Spatially, energy poverty is higher in the west and north, notably lower in the east and south. The eastern coastal and central regions exhibit significantly lower poverty levels due to better economic foundations and leading energy transformations. (4) Nine provinces are red warning areas, witnessing declining sustainability but improving service effectiveness, consumption cleanliness, and management integrity. Weak links in energy poverty vary across regions in terms of service effectiveness, consumption cleanliness, management integrity, and development sustainability. This study enhances the rural energy poverty evaluation system and proposes regional, hierarchical, and phased early warning standards.","PeriodicalId":16953,"journal":{"name":"Journal of Renewable and Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141696211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Multi-site solar irradiance prediction based on hybrid spatiotemporal graph neural network 基于混合时空图神经网络的多站点太阳辐照度预测

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0207462

Yunjun Yu, Zejie Cheng, Biao Xiong, Qian Li

{"title":"Multi-site solar irradiance prediction based on hybrid spatiotemporal graph neural network","authors":"Yunjun Yu, Zejie Cheng, Biao Xiong, Qian Li","doi":"10.1063/5.0207462","DOIUrl":"https://doi.org/10.1063/5.0207462","url":null,"abstract":"Constructing accurate spatiotemporal correlations is a challenging task in joint prediction of multiple photovoltaic sites. Some advanced algorithms for incorporating other surrounding site information have been proposed, such as graph neural network-based methods, which are usually based on static or dynamic graphs to build spatial dependencies between sites. However, the possibility of the simultaneous existence of multiple spatial dependencies is not considered. This paper establishes a spatiotemporal prediction model based on hybrid spatiotemporal graph neural network. In this model, we apply adaptive hybrid graph learning to learn composite spatial correlations among multiple sites. A temporal convolution module with multi-subsequence temporal data input is used to extract local semantic information to better predict future nonlinear temporal dependencies. A spatiotemporal adaptive fusion module is added to address the issue of integrating diverse spatiotemporal trends among multiple sites. To assess the model's predictive performance, nine solar radiation observation stations were selected in two different climatic environments. The average root mean square error (RMSE) of the constructed model was 38.51 and 49.90 W/m2, with average mean absolute error (MAE) of 14.72 and 23.06 W/m2, respectively. Single-site and multi-site prediction models were selected as baseline models. Compared with the baseline models, the RMSE and MAE reduce by 3.1%–20.8% and 8.9%–32.8%, respectively, across all sites. The proposed model demonstrates the effectiveness of improving accuracy in forecasting solar irradiance through multi-site predictions.","PeriodicalId":16953,"journal":{"name":"Journal of Renewable and Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141699549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Wake flow characteristics of small wind turbine models with single- and double-rotor arrangements: A wind tunnel study 单转子和双转子布置的小型风力涡轮机模型的气流特征：风洞研究

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0215625

Ravi Kumar, Ojing Siram, U. Saha, Niranjan Sahoo

{"title":"Wake flow characteristics of small wind turbine models with single- and double-rotor arrangements: A wind tunnel study","authors":"Ravi Kumar, Ojing Siram, U. Saha, Niranjan Sahoo","doi":"10.1063/5.0215625","DOIUrl":"https://doi.org/10.1063/5.0215625","url":null,"abstract":"In the multirotor system of a wind turbine, the overall power generation is greatly influenced by the placement and interaction of rotors in proximity. Thus, a great deal of study is needed to ascertain the integration strategy of small wind turbines. In this paper, the wake flow patterns have been investigated for two model wind turbines, viz., single-rotor and double-rotor arrangements operating at a low tip speed ratio. The model rotors composed of SG6043 airfoil have a similar configuration. In the single-rotor arrangement, the model rotor is placed at the center of the wind tunnel. While in the double-rotor arrangement, the model rotors are placed at an equal distance from the central line axis of the wind tunnel. To understand the wake propagation and interaction, experiments have been performed at various wind speed conditions such that the corresponding tip speed ratio is kept between 2.5 and 3. The study is, therefore, specifically focused on the wake characteristics of the rotors under low λ, and the assessment has been made within the near wake region. The span-wise and stream-wise assessments of the wake for the double rotor suggest a minimal velocity deficit close to the rotor plane and a higher deficit downstream contrary to the single-rotor configuration.","PeriodicalId":16953,"journal":{"name":"Journal of Renewable and Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141847707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A multi-objective operation optimization model for the electro-thermal integrated energy systems considering power to gas and multi-type demand response 考虑电转气和多类型需求响应的电热综合能源系统多目标运行优化模型

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0217570

Fangqiu Xu, Xiaopeng Li, Chunhua Jin

{"title":"A multi-objective operation optimization model for the electro-thermal integrated energy systems considering power to gas and multi-type demand response","authors":"Fangqiu Xu, Xiaopeng Li, Chunhua Jin","doi":"10.1063/5.0217570","DOIUrl":"https://doi.org/10.1063/5.0217570","url":null,"abstract":"Power-to-gas technology and demand response strategy are effective approaches to improve the flexibility and efficiency of energy systems. This paper proposes a multi-objective operation optimization model for an electro-thermal integrated energy system considering power to gas and demand response strategies. First, the structure of integrated energy system and the demand response model of different types of electro-thermal loads are proposed. Second, the operation optimization model of integrated energy system is established with three objectives of total cost minimization, carbon emission minimization, and energy curtailment rate minimization. A hybrid intelligent algorithm combining multi-objective particle swarm optimization and VlseKriterijumska Optimizacija I Kompromisno Resenje technique is employed to solve the proposed model. Then, an industrial park in North China is studied. The results indicate that power to gas can reduce the total cost, carbon emission, and energy curtailment rate by 8.18%, 11.92%, and 75.80%, respectively, and the demand response also has a positive impact on system performance.","PeriodicalId":16953,"journal":{"name":"Journal of Renewable and Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141707320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A computational fluid dynamics analysis on enhancing wind turbine efficiency through synthetic jet actuation 通过合成射流驱动提高风力涡轮机效率的计算流体动力学分析

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0208120

A. Matiz-Chicacausa, S. Molano, O. L. Mejia

引用次数: 0

Experimental study on the effect of combustion and emission performance of biodiesel–ammonia dual-fuel engine 生物柴油-氨气双燃料发动机燃烧和排放性能影响的实验研究

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0208372

Ye Qiu, Haijun Wei, Daping Zhou, Xinyi Zhou, Tie Li

{"title":"Experimental study on the effect of combustion and emission performance of biodiesel–ammonia dual-fuel engine","authors":"Ye Qiu, Haijun Wei, Daping Zhou, Xinyi Zhou, Tie Li","doi":"10.1063/5.0208372","DOIUrl":"https://doi.org/10.1063/5.0208372","url":null,"abstract":"To assist vessels in meeting the net-zero emission target set by the International Maritime Organization for 2050, this article investigates the emission and combustion characteristics of biodiesel–ammonia dual-fuel engines. This research investigates the impact of various ammonia mass ratios (AMRs, m%) at 0, 14.67%, 29.48%, 46.21%, 58.73%, and 82.72% on the combustion and emission performance of biodiesel–ammonia dual-fuel engines at fixed speed and load. The results show that the biodiesel–ammonia dual-fuel engine is capable of operating at a substantial AMR of 82.72%. In addition, as the AMR increased, the in-cylinder pressure and brake thermal efficiency decreased. The heat release rate peaked at 57.13% AMR. When compared to the only-biodiesel mode, NOx, CO2, and soot emissions are significantly reduced. CO2 and soot emissions decreased by 63.43% and 60%, respectively, at 82.72% AMR, while NOx emissions fell by 34.15% at 58.73% AMR. The emissions of N2O and unburned ammonia rose linearly as AMR increased. The increase in N2O did not counteract the substantial fall in CO2e. CO2e fell by 63.12% at 82.72% AMR, following a trend to similar CO2.","PeriodicalId":16953,"journal":{"name":"Journal of Renewable and Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141843280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Virtual tower measurements during the American WAKE ExperimeNt (AWAKEN) 美国 WAKE 实验（AWAKEN）期间的虚拟塔测量结果

IF 1.9 4区工程技术

Journal of Renewable and Sustainable Energy Pub Date : 2024-07-01 DOI: 10.1063/5.0206844

R. Newsom, R. Krishnamurthy, Duli Chand, M. Pekour, Colleen M Kaul, Donna Flynn, L. Goldberger, R. Rai, S. Wharton

{"title":"Virtual tower measurements during the American WAKE ExperimeNt (AWAKEN)","authors":"R. Newsom, R. Krishnamurthy, Duli Chand, M. Pekour, Colleen M Kaul, Donna Flynn, L. Goldberger, R. Rai, S. Wharton","doi":"10.1063/5.0206844","DOIUrl":"https://doi.org/10.1063/5.0206844","url":null,"abstract":"Dual-Doppler lidar measurements were made during the American WAKE ExperimeNt to provide height-resolved measurements of wind speed and direction at multiple locations immediately south of the leading row turbines in the King Plains wind farm in Oklahoma. These so-called virtual tower measurements were performed to characterize the inflow into the wind farm and to assess possible upwind blockage effects due to the collective action of the wind farm. The campaign was conducted from 12 November 2022 to 17 October 2023, during which time 14 unique virtual tower locations were sampled with heights ranging from 240 to 490 m AGL. The wind retrieval algorithm provided estimates of the horizontal winds and their uncertainties with a vertical resolution of about 10 m, while also accounting for the tilt of the lidar platform. The virtual tower results are compared to collocated lidar wind profiling data at the A1 site, which was located roughly 2.4 rotor diameters south of the nearest turbine. The wind speed difference between the wind profiler and the virtual tower was found to be quite sensitive to atmospheric stability and wind direction below 250 m AGL. The largest differences were observed for inflow under stable conditions, where the profiler wind speeds were observed to be about 22% lower than the virtual tower near hub height. These results suggest that there are persistent horizontal gradients in the flow upwind of the wind farm which result in biased estimates using standard ground-based lidar wind profiling methods.","PeriodicalId":16953,"journal":{"name":"Journal of Renewable and Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141846983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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