Integrating Capacity and Efficiency for Optimal Hydrogen Storage Site Selection in Saline Aquifers

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(5), P. 4733 - 4742

Published: Feb. 21, 2024

Hydrogen (H2) energy is a promising transition pathway from conventional fossil fuels to sustainable clean energy. However, H2 requires large storage capacity because of its low volumetric energy–density nature. Underground sites provide ample space for storage. In this work, we proposed general workflow select saline aquifers' optimal sites, considering the and operational efficiency. We developed comprehensive data set high-fidelity numerical simulations quantify effects geologic operating parameters on performance. The simulation results are used train robust reduced-order model (ROM) estimate Due high accuracy flexibility, selected multilayer perceptron develop our ROM. mean squared errors all ROMs less than 0.0001, coefficients determination (R2) were higher 0.99. Integrating performance estimations with calculations capacity, quantitatively evaluated in aquifers using designed objective function. applied Intermountain-West (I-WEST) region, which central mountain area United States, including Arizona, Colorado, New Mexico, Montana, Utah, Wyoming. identified top three 12 potential sites. Our agnostic region could be other areas. Generally, work supports safe efficient operations I-WEST region.

Language: Английский

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Large-scale wind power grid integration challenges and their solution: a detailed review

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(47), P. 103424 - 103462

Published: Sept. 12, 2023

Language: Английский

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Assessing renewable energy efficiency and policies: A combined analysis of LMDI, super-SBM, and fieldwork in Qinghai, China

Energy Sustainable Development/Energy for sustainable development, Journal Year: 2024, Volume and Issue: 80, P. 101420 - 101420

Published: March 20, 2024

The significance of renewable energy as a pivotal green industry in decarbonizing the global economy and addressing climate change is profound. rise China's regional serves testament to its transition from an industrial powerhouse leader sustainable growth, offering valuable insights for future worldwide. This study analyzes efficiency, alongside factors that influence it, Qinghai Province over 2000–2021. It uses combination Logarithmic Mean Divisia Index factor decomposition, Data Envelopment Analysis Super-SBM models, field research with rounded approach. finds robust increase capacity, particularly after 2016. Efficiency generally has risen, although periods inefficiency were noted 2014 2019. Despite fluctuations, overall impact such structure, electricity intensity, security, carbon productivity, emissions, all contribute positively development energy, notably recent years. paper concludes discussion policies wider implications sector.

Language: Английский

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Investigation of biogenic volatile organic compounds emissions in the Qinghai-Tibetan Plateau

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 902, P. 165877 - 165877

Published: Aug. 7, 2023

Language: Английский

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Two-year wind field measurements near the ground at a site of the Tibetan Plateau

Journal of Wind Engineering and Industrial Aerodynamics, Journal Year: 2024, Volume and Issue: 245, P. 105636 - 105636

Published: Jan. 17, 2024

Language: Английский

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Novel Ecological Suitability Evaluation Perspective for Large-Scale Wind Power Construction Zoning and Geographical Potential Prediction:An Explainable Artificial Intelligence-Based Approach

Published: Jan. 1, 2025

The framework development for large-scale energy construction zoning and the consideration of geographical potential are critical to achieving carbon neutrality goals. However, previous wind power studies have mostly focused on micro-site selection, rarely quantitatively analyzed response relationship between ecosystem from a macroscopic perspective. This study introduced new explainable artificial intelligence ecological suitability prediction framework, which can serve as link mitigation adaptation measures in global climate change. Twenty indicator layers were incorporated, quantitative evaluation method was used generate twenty raster data subsequent models' input layers. results showed that accuracies XGBoost, LightGBM, CatBoost CNN 93.36%, 96.50%, 97.17% 97.46% respectively. performed consistently across all categories, while more distinctive very unsuitable suitable categories. analysis found sensitivity desertification distance roads contributed most results, influences socio-economic indicators minimal. Applying Qinghai-Tibetan Plateau revealed 71.4% area farm construction, but total high 1.90×106 GW. It is recommended 11.32% areas with should be developed soon possible future after detailed assessment, order achieve nationally determined contributions target slow down warming.

Language: Английский

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Wind resource assessment and influence of atmospheric stability on wind farm design using Computational Fluid Dynamics in the Andes Mountains, Ecuador

Energy Conversion and Management, Journal Year: 2023, Volume and Issue: 284, P. 116972 - 116972

Published: April 5, 2023

In recent years, research has revealed that hydropower designs in Ecuador have not adequately considered sensitivity to climate change. addition, variations rainfall patterns cause a drought from July October. Therefore, it would decrease the flow of rivers feed dams for hydroelectric generation, which result significant reduction its generating capacity. To prevent this inconvenience occurring, is necessary promote use wind energy diversify Ecuadorian matrix. This matrix made up 70% and 0.26% power. Moreover, Andes untapped potential due their complex topography. Currently, there are no detailed studies on or prediction Andes. As result, resource characterization necessary. order address challenges mentioned above, development, assess potential, diminish need thermal generators. article describes methodology over terrain using measured data two meteorological towers installed mountainous zone study characteristics modeling through Ansys Computational Fluid Dynamics (CFD) software positioning 11 Goldwind 70/1500 kW turbines optimize Annual Energy Production (AEP) hypothetical farm. The study's main findings indicate passing between volcanoes high potential. dependent variables, orography, accelerating effect speed. These favorable conditions make possible install farm area with high-power turbines. Furthermore, most suitable turbulence model design Fluent CFD K-epsilon can precision profile simulated mountain under influence atmospheric stability state air mass assist decision-making process when selecting best locations

Language: Английский

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From potential to utilization: Exploring the optimal layout with the technical path of wind resource development in Tibet

Energy Conversion and Management, Journal Year: 2024, Volume and Issue: 304, P. 118231 - 118231

Published: Feb. 29, 2024

Language: Английский

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Experimental Research on Thermal-Venting Characteristics of the Failure 280 Ah LiFePO4 Battery: Atmospheric Pressure Impacts and Safety Assessment

Batteries, Journal Year: 2024, Volume and Issue: 10(8), P. 270 - 270

Published: July 29, 2024

With the widespread application of lithium-ion batteries (LIBs) energy storage stations in high-altitude areas, impact ambient pressure on battery thermal runaway (TR) behavior and venting flow characteristics have aroused wide research attention. This paper conducts a lateral heating experiment 280 Ah lithium iron phosphate (LFPs) proposes method for testing internal using an embedded sensor. analyzes characteristic temperature, pressure, chamber gas components under different pressures. The is carried out N2 atmosphere 1000 L insulated chamber. At 40 kPa, experiences two instances venting, with corresponding peak temperature battery’s side 136.3 °C 302.8 °C, generation rates 0.14 mol/s 0.09 mol/s, respectively. results indicate that changes significantly affect center (Ts), (Tc), opening time safety valve (topen), triggering TR (tTR), difference (Δt), velocity, composition, flammable limits. However, content are apparently unaffected. Considering mentioned above, assessment proposed to evaluate hazard battery. risk at kPa much higher than other three study provides theoretical references safe use early warning LIBs areas.

Language: Английский

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Effects of Inflow Turbulent Coherent Structures on a Small-Scale Wind Turbine in the Atmospheric Boundary Layer of Long Corridor Terrains: An Example Study in the Hexi Corridor

PRX Energy, Journal Year: 2024, Volume and Issue: 3(4)

Published: Oct. 25, 2024

Considering its Venturi effect, long corridor terrain is considered as one of the outstanding wind-energy resources, but has not been developed due to unclear inflow turbulence effects on wind turbines. To advance wind-power technology in corridors and reveal physics behind it, we conducted a series data-fusion analyses combining field measurements Hexi Corridor, Gansu, China, numerical simulations summarize effort here. In this study, classical spectrum for atmospheric boundary layer research, IEC Kaimal (also known IECKwind, International Elector technical Commission 61400-1) cannot describe profile corridors. Here, proposed new Corridor by modifying spectrum, call it IECK-HX spectrum. The results demonstrate that preferentially resides at lower frequencies (larger spatial scales) compared with IECKwind. Large-scale motions (LSMs) very large-scale (VLSMs) coexist layer, which can be well described these two dominate large fluctuations power, thrust, blade root flapwise moment turbines, while high-frequency small-scale coherent structures mainly cause wind-turbine load. Furthermore, VLSMs, generated flow presents significant thereby reduces power output high wind-speed regions. This study provides fundamental support scientists engineers who are interested energy terrains. Published American Physical Society 2024

Language: Английский

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