Renewable Energy, Год журнала: 2023, Номер 222, С. 119897 - 119897
Опубликована: Дек. 25, 2023
Язык: Английский
International Journal of Thermofluids, Год журнала: 2023, Номер 18, С. 100340 - 100340
Опубликована: Март 28, 2023
Concentrated solar power (CSP) technology is a promising renewable energy worldwide. However, many challenges facing this nowadays. These are mentioned in review study. For the first time, work summarized and compared around 143 CSP projects worldwide terms of status, capacity, concentrator technologies, land use factor, efficiency, country other factors. Further, various spread-out system highlighted heat transfer fluids (HTF), storage (ES) cooling techniques, water management, Levelized Cost Electricity (LCOE). Also, thermophysical properties HTF within applicable range operation. At end review, hybridization technologies for with sources, including photovoltaic, wind, geothermal, compared. The pioneering using CSP, leading technology, suitable ES efficient hybrid technique based on LCOE determined. analyzed data study essential predicting future markets its contribution to reducing global warming potential.
Язык: Английский
Процитировано
116
International Journal of Thermofluids, Год журнала: 2023, Номер 17, С. 100289 - 100289
Опубликована: Янв. 25, 2023
With global energy consumption increasing, a shift to renewable resources is critical for sustainable development. Wind has emerged as one of the most promising and resources, with ability contribute world's demand significantly. Although wind generally inexpensive source, amount electricity available varies depending on conditions (e.g., speed direction). As result, it learn how harvest more effectively reliably. Furthermore, newly constructed turbines were built onshore, demonstrating that consequences varied terrains are becoming increasingly crucial wind-energy field. before farm construction, investment corporation must evaluate turbine wake behavior in natural park site (which may include complex terrain). These investigations can be made using field measurements, laboratory experiments, or numerical simulations. In light this trend, present work contributes additional insights into flow situation occurring around onshore presence different terrain types—Atmospheric Boundary Layer (ABL) profile recovery over hilly forested terrains. On contrary, there still limited knowledge some issues, such operates terrain.
Язык: Английский
Процитировано
76
International Journal of Thermofluids, Год журнала: 2023, Номер 18, С. 100326 - 100326
Опубликована: Март 8, 2023
Thermal energy storage systems are extensively investigated because of their fundamental role in the renewable and recovery useful heat generated from various systems. The three mechanisms thermal discussed herein: sensible (QS,stor), latent (QL,stor), sorption (QSP,stor). Various materials were evaluated literature for potential as mediums evaluation criteria include capacity, conductivity, cyclic stability long-term usage. This work offers a comprehensive review recent advances employed storage. It presents that have been synthesized years to optimize performance QS,stor, QL,stor, QSP,stor systems, along with challenges associated materials. paper concludes via use inorganic phase change (PCMs) would be ideal high-temperature applications.
Язык: Английский
Процитировано
65
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 67, С. 898 - 911
Опубликована: Фев. 9, 2024
Язык: Английский
Процитировано
15
Energy Conversion and Management, Год журнала: 2024, Номер 308, С. 118356 - 118356
Опубликована: Апрель 4, 2024
Язык: Английский
Процитировано
15
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 71, С. 964 - 971
Опубликована: Май 24, 2024
Renewable energy stands as a cornerstone for sustainable future, yet it grapples with significant obstacle: curtailment—deliberate generation reduction to avert grid overload. Curtailment not only squanders clean but also poses economic and environmental challenges. This study seeks enhance the value of renewable by proposing comprehensive methodology evaluate mitigate curtailment, particular focus on repurposing curtailed ammonia production in Jordan, pioneering nation adoption. The unfolds several pivotal contributions field: (1) Incorporating curtailment capacity factor equation first time. (2) Exploring green potential Jordan (3) Investigating, time, effects by-products (specifically oxygen rare gases) investment hydrogen ammonia, utilizing system dynamics (4) Outlining applications highlighting breakthrough release optimizer combustion-free extraction. In scenario where is restrained (514.1 GWh/year), our findings unveil promising prospects: can be produced at levelized costs 2.4 USD/kg 600 USD/ton, respectively. More significantly, integration free (curtailed energy) synergistic utilization gases, notably argon, precipitate remarkable cost 1.5 401 USD/ton production, underscores substantial improvement, being USD 219 lower than average market price (USD 620). We advocate adoption strategic strategies significantly associated thereby amplifying viability initiatives.
Язык: Английский
Процитировано
8
International Journal of Thermofluids, Год журнала: 2022, Номер 17, С. 100258 - 100258
Опубликована: Ноя. 29, 2022
Harvesting a maximum power from wind turbines especially at low tip speed ratio still remains challenge. Vertical axis (VAWTs) suffer periodically stall which leads to aerodynamic losses and structural load fluctuation. In improving their efficiency by increasing the generated is an essential goal. The focus of current study improve VAWT analyzing influence using dielectric barrier discharge (DBD) plasma actuators on cycloidal in combination with blade rotations oscillations performance. analysis performed through computational fluid dynamics (CFD) user defined function (UDF) loaded into ANSYS FLUENT describe control complex dynamic pitching movements blades effect. A sliding mesh technique coupled turbulence model k-ω SST used simulations. actuation velocity contour, vorticity field evolution coefficient analyzed. For better performance, law proposed regulate operation as rotate azimuth direction. results showed that applying DBD actuation, law, we can 8% compared base case 38% conventional fixed pitch vertical turbine.
Язык: Английский
Процитировано
29
International Journal of Thermofluids, Год журнала: 2023, Номер 20, С. 100477 - 100477
Опубликована: Окт. 6, 2023
Hybrid energy storage systems (HESSs) can considerably improve the dependability, efficiency, and sustainability of (ESSs). This study examines components HESS, including different types ESSs that are typically used in hybrid systems. The advantages integrating various ESS also covered, along with design considerations for HESS interconnection topologies, which include passive, active, semi-active architectures. For several control techniques both traditional intelligent-have been suggested, filter-based control, droop sliding mode rule-based deadbeat model predictive fuzzy logic optimization-based supervisory feedforward unified robust control. current work discusses HESS's difficulties potential possibilities, technological advancement, standardization, interdisciplinary cooperation, grid integration, environmental sustainability, security legislative regulatory frameworks.
Язык: Английский
Процитировано
21
Energies, Год журнала: 2023, Номер 16(2), С. 828 - 828
Опубликована: Янв. 11, 2023
Biofuel is an attractive alternative to fossil fuels since it renewable and biodegradable—it mainly made from edible non-edible sources. Globally, the usage of biofuels expected rise quickly. The rising production use biofuel has prompted examination its environmental impact. Biodiesel a fatty acid methyl ester generated sustainable lipid feedstock that substitutes petroleum-based diesel fuel. Non-food oils, such as Jatropha, waste cooking oil, by-products vegetable oil refineries provide inexpensive for biodiesel manufacturing. Due increased yield, adequate content, tolerance various agro-climatic conditions, short gestation period, Jatropha may be one most promoted oilseed crops worldwide. Furthermore, can several economic agronomic advantages because biodegradable, plant. This study examines whether considered preferable in future. begins with overview current fuels, including their classifications, dynamic changes consumption, advantages, cross-examining limitations identify significance bringing alternate Then we elaborate on outlook crop, followed by evaluating availability, opportunity, over other biofuels. Subsequently, extraction methods, transesterification process integration methods improving efficiency fuel, are also reviewed paper. We assess stage cultivation different countries challenges. review concludes future perspectives directions research.
Язык: Английский
Процитировано
19
Energies, Год журнала: 2022, Номер 15(23), С. 9039 - 9039
Опубликована: Ноя. 29, 2022
Green hydrogen is becoming an increasingly important energy supply source worldwide. The great potential for the use of as a sustainable makes it attractive carrier. In this paper, we discuss producing green in Jordan. Aqaba, located south Jordan, was selected to study hydrogen, due its proximity water (i.e., Red Sea). Two models were created two electrolyzer types using MATLAB. investigated electrolyzers alkaline (ALK) and polymeric electrolyte membrane (PEM) electrolyzers. first model used compare required capacity PV solar system ALK PEM from 2022 2025, depending on learning curves development these technologies. addition, predict total investment costs Then, techno-economic constructed feasibility technology, by comparing grid electricity sources production hydrogen. net present value (NPV) levelized cost (LCOH) indicators both models. environmental effect, according reduction CO2 emissions, also taken into account. annual 70.956 million kg. rate 19.3 kg/s 1783 electrolyzers, respectively. LCOH 4.42 USD/kg 3.13 when applying generated system, payback period cover capital 11 years project life, with NPV USD 441.95 million. Moreover, emissions can be reduced 3042 tons/year generation source, instead fossil fuels generate electricity. savings, respect 120,135.
Язык: Английский
Процитировано
24