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1دورية أكاديمية
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2دورية أكاديمية
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3
المؤلفون: Leonard E. Klebanoff, Sean A.M. Caughlan, Cody J. Conard, T. Bruce Appelgate, Robert T. Madsen, Timothy S. Leach
المصدر: International Journal of Hydrogen Energy. 46:38051-38072
مصطلحات موضوعية: Battery (electricity), Waste management, Hydrogen, Renewable Energy, Sustainability and the Environment, business.industry, Energy Engineering and Power Technology, chemistry.chemical_element, Condensed Matter Physics, Energy storage, Renewable energy, Diesel fuel, Fuel Technology, chemistry, Hydrogen fuel, Capital cost, Environmental science, business, Zero emission
الوصف: The Scripps Institution of Oceanography (SIO) current coastal/local research vessel, the R/V Robert Gordon Sproul, is nearing the end of its service life and will soon require replacement. This study compares three potential variants for an R/V Sproul replacement vessel (SRV): a Baseline SRV consisting of a traditional diesel-electric powertrain, a Battery Hybrid SRV (battery/diesel-electric) and a Hydrogen Hybrid SRV (hydrogen fuel cell/diesel-electric). All three variants meet the science mission requirements of the SRV but with varying levels of zero-emission runtime, energy efficiency and emissions. The Battery Hybrid SRV can provide 2.5 h of zero emissions (battery only) operation, but could not complete any of the identified SRV science missions without also engaging the diesel generators. In contrast, the Hydrogen Hybrid SRV can provide 23.4 h of zero emission (hydrogen only) runtime, and can complete 74% of the SRV science missions solely with zero-emission operation. The superior performance of the Hydrogen Hybrid SRV is attributable to the higher volumetric energy storage density of the LH2/fuel cell combination. The capital costs of these vessels are estimated to be: ∼ $21.4 M for the diesel-electric Baseline SRV, ∼ $26.0 M for the Battery Hybrid SRV vessel and ∼ $34.4 M for the Hydrogen Hybrid SRV. The “well-to-waves” (WTW) greenhouse gas (GHG) and criteria pollutant emissions were estimated using various sourcings for the diesel fuel, electricity and hydrogen fuel. The lowest emission levels are achieved with the Hydrogen Hybrid variant using 100% renewable hydrogen. The annual WTW GHG emissions from the Hydrogen Hybrid using renewable LH2 in combination with fossil diesel in the hybrid arrangement yields a 26.7% GHG emissions reduction from the Baseline vessel using fossil-derived diesel fuel. The Battery Hybrid vessel with 100% renewable electricity combined with diesel fuel provides a 6.9% reduction in GHG emissions. Similar results are seen for the criteria pollutant emissions. The hybrid vessels are also compared with regard to operational safety. The study reveals that hydrogen fuel-cell technology provides an effective hybrid supplement to diesel power for a coastal/local research vessel.
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4
المؤلفون: Matthew G. Booth, Eike Marie Thaysen, Niklas Heinemann, R. S. Haszeldine, Gillian Elizabeth Pickup, A.K. Satterley, Aliakbar Hassanpouryouzband, Katriona Edlmann, Jonathan Scafidi, Mark I. Wilkinson
المصدر: Heinemann, N, Scafidi, J, Pickup, G, Thaysen, E M, Hassanpouryouzband, A, Wilkinson, M, Satterley, A K, Booth, M G, Edlmann, K & Haszeldine, R S 2021, ' Hydrogen storage in saline aquifers : The role of cushion gas for injection and production ', International journal of hydrogen energy, vol. 46, no. 79, pp. 39284-39296 . https://doi.org/10.1016/j.ijhydene.2021.09.174
مصطلحات موضوعية: Petroleum engineering, Hydrogen, Saline aquifers, Renewable Energy, Sustainability and the Environment, business.industry, Energy Engineering and Power Technology, chemistry.chemical_element, Low-carbon energy storage, Condensed Matter Physics, Cushion gas requirement, Renewable energy, Permeability (earth sciences), Hydrogen storage, Fuel Technology, Volume (thermodynamics), chemistry, Hydrogen fuel, Reservoir engineering, Cushion, Hydrogen subsurface storage, Environmental science, business
الوصف: Hydrogen stored on a large scale in porous rocks helps alleviate the main drawbacks of intermittent renewable energy generation and will play a significant role as a fuel substitute to limit global warming. This study discusses the injection, storage and production of hydrogen in an open saline aquifer anticline using industry standard reservoir engineering software, and investigates the role of cushion gas, one of the main cost uncertainties of hydrogen storage in porous media. The results show that one well can inject and reproduce enough hydrogen in a saline aquifer anticline to cover 25% of the annual hydrogen energy required to decarbonise the domestic heating of East Anglia (UK). Cushion gas plays an important role and its injection in saline aquifers is dominated by brine displacement and accompanied by high pressures. The required ratio of cushion gas to working gas depends strongly on geological parameters including reservoir depth, the shape of the trap, and reservoir permeability, which are investigated in this study. Generally, deeper reservoirs with high permeability are favoured. The study shows that the volume of cushion gas directly determines the working gas injection and production performance. It is concluded that a thorough investigation into the cushion gas requirement, taking into account cushion gas costs as well as the cost-benefit of cushion gas in place, should be an integral part of a hydrogen storage development plan in saline aquifers.
وصف الملف: application/pdf
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5
المؤلفون: Alfred John, Srijit Basu, Akshay, Anil Kumar
المصدر: International Journal of Hydrogen Energy. 46:34574-34586
مصطلحات موضوعية: Renewable Energy, Sustainability and the Environment, business.industry, Energy Engineering and Power Technology, Condensed Matter Physics, Turbine, Energy storage, Renewable energy, Fuel Technology, Photovoltaics, Hydrogen fuel, Hybrid system, Environmental science, Energy source, business, Process engineering, Cost of electricity by source
الوصف: Renewable energy sources can produce less carbon than conventional energy sources, which has the significant disadvantage of being intermittent, which triggers a stable storage system. This work focuses on the issues of hydrogen energy storage which can solve the fluctuating output power problem by simulating results on HOMER software. Three combinations of the Solar-Hydrogen system, Wind-Hydrogen system, and Solar-Wind-Hydrogen hybrid system are presented to find the most optimum one. Levelized Cost of Energy (LCOE) for Hybrid System has proven to be the most economical while the Wind Turbine cost 1.476% higher and the Solar Photovoltaics (PV) System costs 108.03% more. LCOE for Hybrid Model is $0.3387, while for Solar System it is $ 0.7046 and for Wind System it is $ 0.3437. These results show that a hydrogen-based energy storage system is viable for the considered.
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المؤلفون: Dang Jian, Hu Song, Zhaoyuan Huang, Wang Tianze, Minggao Ouyang, Fuyuan Yang, Yangyang Li, Deng Xintao
المصدر: International Journal of Hydrogen Energy. 46:31467-31488
مصطلحات موضوعية: Hydrogen, Renewable Energy, Sustainability and the Environment, Nuclear engineering, Detonation, Energy Engineering and Power Technology, chemistry.chemical_element, Condensed Matter Physics, Energy storage, law.invention, Ignition system, Fuel Technology, Hydrogen safety, Electricity generation, chemistry, law, Hydrogen fuel, Environmental science, Leakage (electronics)
الوصف: The development and application of hydrogen energy in power generation, automobiles, and energy storage industries are expected to effectively solve the problems of energy waste and pollution. However, because of the inherent characteristics of hydrogen, it is difficult to maintain high safety during production, transportation, storage, and utilization. Therefore, to ensure the safe and reliable utilization of hydrogen, its characteristics relevant to leakage and diffusion, ignition, and explosion must be analyzed. Through an analysis of literature, in combination with our practical survey analysis, this paper reviews the key issues concerning hydrogen safety, including hydrogen incident investigation, hydrogen leakage and diffusion, hydrogen ignition, and explosion.
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7دورية أكاديمية
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8
المؤلفون: Enas Taha Sayed, Ahmad Baroutaji, Hegazy Rezk, Adel saleh bahri, Mohammad Ali Abdelkareem, Abdul Ghani Olabi, Aasim Ahmed Abdelghafar, Abdul Hai Alami
المصدر: International Journal of Hydrogen Energy. 46:23498-23528
مصطلحات موضوعية: Renewable Energy, Sustainability and the Environment, business.industry, Energy Engineering and Power Technology, Energy mix, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Energy storage, 0104 chemical sciences, Renewable energy, Hydrogen storage, Fuel Technology, Hydrogen fuel, Environmental science, Energy supply, 0210 nano-technology, business, Process engineering, Underground hydrogen storage, Hydrogen production
الوصف: Over the past years, hydrogen has been identified as the most promising carrier of clean energy. In a world that aims to replace fossil fuels to mitigate greenhouse emissions and address other environmental concerns, hydrogen generation technologies have become a main player in the energy mix. Since hydrogen is the main working medium in fuel cells and hydrogen-based energy storage systems, integrating these systems with other renewable energy systems is becoming very feasible. For example, the coupling of wind or solar systems hydrogen fuel cells as secondary energy sources is proven to enhance grid stability and secure the reliable energy supply for all times. The current demand for clean energy is unprecedented, and it seems that hydrogen can meet such demand only when produced and stored in large quantities. This paper presents an overview of the main hydrogen production and storage technologies, along with their challenges. They are presented to help identify technologies that have sufficient potential for large-scale energy applications that rely on hydrogen. Producing hydrogen from water and fossil fuels and storing it in underground formations are the best large-scale production and storage technologies. However, the local conditions of a specific region play a key role in determining the most suited production and storage methods, and there might be a need to combine multiple strategies together to allow a significant large-scale production and storage of hydrogen.
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المؤلفون: Konstantin P. Katin, Ksenia A. Ivanichkina, Alexander Y. Galashev, Mikhail M. Maslov, O. R. Rakhmanova, Alexey S. Vorob’ev
المصدر: International Journal of Hydrogen Energy. 46:17019-17036
مصطلحات موضوعية: Battery (electricity), Materials science, Renewable Energy, Sustainability and the Environment, Silicene, business.industry, Energy Engineering and Power Technology, chemistry.chemical_element, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Energy storage, 0104 chemical sciences, Power (physics), Anode, Fuel Technology, chemistry, Hydrogen fuel, Electrode, Lithium, 0210 nano-technology, Process engineering, business
الوصف: Self-contained power supplies and energy storage continue to improve. The criteria that determine their development include efficiency, safety, adaptability, modifiability, and a number of others. In this work, one of the ways to improve the lithium-ion battery by using a new negative electrode is considered. The possibilities of applicability of the improved lithium-ion battery are discussed, its advantages and disadvantages in relation to a hydrogen fuel cell and power sources using hydrogen fuel are considered. The study of the functioning of the new anode, the material of which is a two-layer silicene on a nickel substrate, is carried out at the atomic level. Improvement of the anode characteristics can be achieved by subjecting it to the neutron doping. Li-ion batteries with an improved anode will have higher charging capacity and power, faster charging and improved safety.
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10
المؤلفون: Burak Yildirim
المصدر: International Journal of Hydrogen Energy. 46:16481-16493
مصطلحات موضوعية: Renewable Energy, Sustainability and the Environment, Computer science, business.industry, Photovoltaic system, Energy Engineering and Power Technology, Phase margin, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Automotive engineering, Energy storage, 0104 chemical sciences, Renewable energy, Fuel Technology, Electricity generation, Control theory, Hydrogen fuel, Microgrid, 0210 nano-technology, business
الوصف: Nowadays, with the increase in the amount of power generation related to renewable energy resources, the need for energy storage and management is raised. In this regard, the hydrogen energy plays a critical role in the development of renewable technologies. In view of the above, advanced controller design is presented in this paper to effectively perform load frequency control of islanded fuel cell microgrid based on the wind turbine, photovoltaic, fuel cell, electrolyzer, battery energy storage systems, and residential and commercial loads. The controller design is based on the determination of the controller parameters that the fuel cell microgrid system will provide the desired dynamic properties. In the proposed controller design, virtual gain and phase margin testers are added to provide the desired dynamic properties. The controller's stable parameter plane is determined with the help of the stability boundary locus method, taking into account time delay, gain, and phase margin. First, the accuracy of the stable parameter plane determined for the proposed controller design is demonstrated by means of time domain and eigenvalue analyzes. Finally, in order to show the performance of the advanced controller design and the success of the fuel cell as a backup generator, analysis studies have been carried out using actual data of solar and wind, and appropriate changes of load in studied microgrid.
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