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Green hydrogen production from photovoltaic power station as a road map to climate change mitigation

Clean Energy 2024年第2期8卷 156-167页

作者： Kehinde Ridwan Kamil Bassey Okon Samuel Umar Khan Department of Computer Science and Engineering Edge Hill UniversityUK enel Green Power Rome Italy Materials Research Laboratory Steelagon Engineering LimitedKaduna StateNigeria

The increasing recognition of hydrogen as a critical element in the global net-zero transition and its clear role in decarbonizing challenging sectors coincide with the growing urgency to address climate ***'s favourable renewable-energy capacity,ranging from 28%to 36%for solar,has been reported by the global solar irradiance ***,the majority of hydrogen production today relies on fossil fuels(96%),with only a small fraction(4%)being produced through water *** though there have been many studies on climate change mitigation with a focus on Africa,a green hydrogen production from a photovoltaic power station approach has not been ***,literature with a focus on Nigeria is *** study focuses on the African green hydrogen production industry,utilizing Nigeria as a case study to explore the feasibility of generating clean hydrogen vectors from a percentage of photovoltaic power output in various regions of the country through stand-alone solar grid electrification *** of the usage and effectiveness of the produced hydrogen fuel in each region are carried out,with the highest region having an annual output of 12247278 kg of green hydrogen and 8573094 kg of ammonia and the lowest region having an output of 511245 kg of green hydrogen and 357871 kg of ammonia,and the expected production from the proposed usage of 50%of the power generation output of the installed 1.6-MWp and 80-kWp solar power minigrids in the regions is *** analyses were repeated for the other considered regions in the *** results showcased the enormous advantages of the electrolytic production of hydrogen and how the greener economy project can play a major role in mitigating climate change effects and overreliance on fossil fuels as the driver of the economy in many African countries.

关键词： renewable energy photovoltaic climate change green hydrogen vector fossil fossil fuels decarbonization electrolysis

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Analysis of Cold Flowfield of Multi-Annular Opposed Jets

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Journal of Thermal Science 1992年第2期1卷 135-139页

作者： H.F.Zhao G.C.Benelli InstituteofEngineeringThermophysics ChineseAcademyofSciencesBeijing100080China enel－crtn，ViaA.Pis

The technique of the use of multi-annular opposed jets as different from using swirl and bluff body creates an excellent recirculation zone with desired size in a large *** size of recirculation,the magnitude of reverse velocity and turbulence intensity are much greater than those formed by bluff *** affecting the flowfield include the velocity ratio of the opposed jets to the primary air J,the diameter and construction of the opposed jet ring,secondary air velocity and configuration,and confined or unconfined flow condition and so *** method is a promising way for flame stabilization in combustion technology.

关键词： multi-annular opposed jets cold flowfield

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A methodological approach for estimating turbidity in a river

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International Journal of Sediment Research 2011年第1期26卷 112-119页

作者： Annamaria De VINCENZO Bruno MOLINO Rosa VIPARELLI Pompilio CARAMUSCIO Department of Environmental Physics and Engineering University of Basilicata85100 PotenzaItaly SAVA Department University of Molise86100 CompobassoItaly 3. ENEL R&D Department72020 Tutorano(Br)Italy

During the operations of purging and disposal of sediments of a reservoir it is necessary to know the values of turbidity in the river downstream in natural condition,in the absence of dams or river training *** paper shows that under these conditions the ratio of the average values of sediment discharge to the annual maximum value of water discharge is a function of the average annual *** can be considered as representative synthetic index of the climatic conditions,the lithological features and the land cover of the basin,and the geometric characteristics of the river *** proposed relationship of sediment discharge as a function of water discharge were validated on the basis of data collected from different Italian regions that have very different morphological,geo-lithological and rainfall features and that are characterised by a basin area changing between a few dozen and thousands of square *** results can be considered satisfying.

关键词： Soil erosion Reservoir siltation Flushing Turbidity Sediment transportation

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SLOPE MOVEMENTS IN STRUCTURALLY COMPLEX FORMATIONS

SLOPE MOVEMENTS IN STRUCTURALLY COMPLEX FORMATIONS

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复杂岩石中的建筑物国际学术讨论会

作者： B.D'ELIA D.DISTEFANO F.ESU G.FEDERICO prof.of Geotech.Eng. University of Rome"La Sapienza"Italy Eng.Director of S.Barbara Mine ENELFlorenceItaly Researcher University of Rome"La Sapienza"Italy

＜正＞Two complex formations,a chaotic"melange"of clay shales and limestones,and a turbiditic sequences of layered sandstones,shales and siltstones are *** slopes movements are caused by mine excavations about 100 m deep and are due to deformation processes and shallow *** are made on geotechnical characterization and mechanical modelling of the formations

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