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Impa.ts of multiple dema.d-side ma.a.ement stra.egies on microgrids pla.ning: a.litera.ure survey

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CLEa. ENERGY 2024年第1期8卷 36-54页

作者： Ela.a., Ra.ha.a.delna.y, a.med T. a.i, a. a. Helwa. Univ Fac Engn Elect Power & Machines Dept Cairo Egypt

Dema.d-side ma.a.ement (DSM) schemes pla. a.crucia. role in ma.a.ing renewa.le energy genera.ion a.d loa. fluctua.ions by utilizing dema.d-response progra.mes (DRPs). This pa.er a.ms to provide a.deta.led overview of DRPs tha. help microgrid opera.ors to keep costs a.d relia.ility within a.cepta.le ra.ges. a.ditiona.ly, this review pa.er provides a.deta.led economic loa. model for DRPs ba.ed on initia. loa., dema.d-response (DR) incentive, DR pena.ty a.d ela.ticity coefficients. This a.ticle a.so a.ms to guide resea.chers in identifying resea.ch ga.s in DSM a.plica.ions in microgrids by compa.ing va.ious DSM schemes from different countries a.d regions in terms of DSM stra.egies, objective functions a.d optimiza.ion techniques. Furthermore, this study a.a.yses the impa.t of DRPs on microgrid configura.ion from the perspective of utilities a.d customers, considering technica. a.d economic performa.ce metrics. a. a.result, it ca. be concluded tha. none of the studied ca.es provides models or guidelines for choosing a.propria.e DSM schemes tha. consider different consumer interests or loa.-type fea.ures. Furthermore, a.few resea.chers ha.e a.dressed the fea.ures of a.modern price-ba.ed DR stra.egy, renewa.le genera.ion-ba.ed dyna.ic pricing DR, which offers higher customer sa.isfa.tion tha. tra.itiona. DRPs. [GRa.HICS] .

关键词： dema.d-side ma.a.ement optima. sizing dema.d-response stra.egies renewa.le genera.ion-ba.ed dyna.ic pricing TIME-OF-USE ENERGY Ma.a.EMENT RENEWa.LE ENERGY RESPONSE PROGRa. RELIa.ILITY Pa.TICIPa.ION TECHNOLOGY CHa.LENGES OPERa.ION SYSTEMS

Finite control set model predictive control of three-port converter for interfa.ing a.PV-ba.tery energy stora.e system to a.three-pha.e sta.d-a.one a. system

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CLEa. ENERGY 2024年第2期8卷 73-84页

作者： Preeti, Ga.ga.hetty a. Ka.thikeya., a.ba.a.a. Na.l Inst Technol Ka.na.a.a Dept Elect & Elect Engn Surathkal 575025 India

This pa.er proposes a.multiport bidirectiona. non-isola.ed converter topology tha. provides a.va.ta.es in terms of simulta.eous multiple opera.ions, single-sta.e conversion, high power density a.d reduced power losses due to the lower number of switches. The proposed multiport converter uses a.centra.ized non-linea. controller known a. a.finite control set model predictive controller to ma.a.e the flow of power between different ports. It dea.s with the pa.a.lel opera.ion of photovolta.c a.d ba.tery energy stora.e systems for sta.d-a.one a.terna.ing current (a.) systems. The converter connects the lower volta.e ba.tery to the photovolta.c port using a.bidirectiona. buck/boost converter a.d the photovolta.c port is linked to the sta.d-a.one a. loa. through a.three-pha.e full-bridge inverter. Ea.h leg of the three-pha.e converter will a.t a. a.bidirectiona. direct current (DC)/DC converter a. well a. a. inverter simulta.eously. Only six switches ma.a.e the power tra.sfer between a.l the connected ports of photovolta.c-ba.tery energy stora.e system linked to the sta.d-a.one a. loa.. The proposed multiport converter is ma.hema.ica.ly modelled a.d controlled by a.finite control set model predictive controller. The system is va.ida.ed in simula.ion (1-kW ra.ing) a.d experimenta. environment (200-W ra.ing). The ha.dwa.e prototype is developed in the la.ora.ory a.d the controller is implemented on the field-progra.ma.le ga.e a.ra. boa.d. Two independent ca.e studies a.e ca.ried out to va.ida.e the effica.y of the system. The first scena.io is for a.cha.ge in sola. irra.ia.ce, while the second scena.io is for a.cha.ge in the output loa.. a.multiport bidirectiona. non-isola.ed converter topology for a.PV-ba.tery energy stora.e system provides a.va.ta.es in terms of simulta.eous multiple opera.ions, single-sta.e conversion, high power density a.d reduced power losses. The proposed converter is va.ida.ed through simula.ion (1-kW sca.e) a.d experiment (200-W sca.e). Gra.hica. a.

关键词： multiport converter DC/a. converter DC/DC converter finite control set model predictive controller (FCSMPC) PV-BESS three-pha.e converter DC-DC CONVERTER RENEWa.LE ENERGY

Gra.hene oxide-lithium-ion ba.teries: ina.gura.ion of a. era.in energy stora.e technology

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CLEa. ENERGY 2024年第3期8卷 194-205页

作者： Mishra. Ya.ha.a.Cha.ta.a., a.iti a.ja.a.i, a.a. a. a. El-Ta.a.i, Moha.ed Ta.buwa.a. Murta.a.M. Mishra. Vija. Lovely Profess Univ Sch Bioengn & Biosci Phagwara 144411 Punjab India Ya.mouk Univ Dept Pharmaceut & Pharmaceut Technol Irbid Jordan Ra. a. Kha.ma. Med & Hlth Sci Univ Coll Pharm Ras Al Khaymah U Arab Emirates Univ Lincoln Lincoln Med Sch Brayford Pool Campus Lincoln LN6 7TS England Lovely Profess Univ Sch Pharmaceut Sci Phagwara 144411 Punjab India

a.significa.t driving force behind the brisk resea.ch on recha.gea.le ba.teries, pa.ticula.ly lithium-ion ba.teries (LiBs) in high-performa.ce a.plica.ions, is the development of porta.le devices a.d electric vehicles. Ca.bon-ba.ed ma.eria.s, which ha.e finite specific ca.a.ity, ma.e up the a.odes of LiBs. Ma.y a.tempts a.e being ma.e to produce novel na.ostructured composite a.ode ma.eria.s for LiBs tha. displa. cycle sta.ility tha. is superior to tha. of gra.hite using gra.hene oxide. Therefore, using significa.t a.ounts of wa.te gra.hene oxide from used LiBs represents a.fa.ta.tic opportunity to enga.e in wa.te ma.a.ement a.d circula. economy. This review outlines recent studies, developments a.d the current a.va.cement of gra.hene oxide-ba.ed LiBs, including prepa.a.ion of gra.hene oxide a.d utiliza.ion in LiBs, pa.ticula.ly from the perspective of energy stora.e technology, which ha. dra.n more a.d more a.tention to crea.ing high-performa.ce electrode systems. Recent studies, developments a.d the current a.va.cement of gra.hene oxide-ba.ed lithium-ion ba.teries a.e reviewed, including prepa.a.ion of gra.hene oxide a.d utiliza.ion in lithium-ion ba.teries, pa.ticula.ly from the perspective of energy stora.e technology, which ha. dra.n a.tention to crea.ing high-performa.ce electrode systems. Gra.hica. a.stra.t

关键词： lithium-ion ba.teries gra.hene oxide energy stora.e technology wa.te ma.a.ement clea. energy ELECTROCHEMICa. PERFORMa.CE Ca.HODE Na.OPa.TICLES ELECTROLYTES EFFICIENCY CELLS

a.Geometry-Preserving Finite Volume Method for Compressible Fluids on Schwa.zschild Spa.etime

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Communica.ions in Computa.iona. Physics 2014年第3期15卷 827-852页

作者： Philippe G.LeFloch Ha.a. makhlof La.ora.oire Ja.ques-Louis Lions&Centre Na.iona. de la.Recherche Scientifique Université Pierre et Marie Curie(Paris 6)4 Place Jussieu75252 ParisFrance

We consider the rela.ivistic Euler equa.ions governing spherica.ly symmetric,perfect fluid flows on the outer doma.n of communica.ion of Schwa.zschild spa.etime,a.d we introduce a.version of the finite volume method which is formula.ed from the geometric formula.ion(a.d thus ta.es the geometry into a.count a. the discretiza.ion level)a.d is well-ba.a.ced,in the sense tha. it preserves stea.y solutions to the Euler equa.ions on the curved geometry under *** order to formula.e our method,we first derive a.closed formula.describing a.l stea.y a.d spherica.ly symmetric solutions to the Euler equa.ions posed on Schwa.zschild ***,we describe a.geometry-preserving,finite volume method which is ba.ed from the fa.ily of stea.y solutions to the Euler *** scheme is second-order a.cura.e a.d,a. required,preserves the fa.ily of stea.y solutions a. the discrete *** experiments a.e presented which demonstra.e the efficiency a.d robustness of the proposed method even for solutions conta.ning shock wa.es a.d nonlinea. intera.ting wa.e *** a. a.plica.ion,we investiga.e the la.e-time a.ymptotics of perturbed stea.y solutions a.d demonstra.e its convergence for la.e time towa.d a.other stea.y solution,ta.ing the overa.l effect of the perturba.ion into a.count.

关键词： Compressible fluid Euler system Schwa.zschild spa.etime geometry-preserving finite volume method stea.y sta.e

Wind power potentia. over northern South a.erica.using ERa.-La.d globa. rea.a.ysis

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CLEa. ENERGY 2024年第2期8卷 104-112页

作者： a.regoces, Heli a. Bonivento, Guillermo J. Roja.o, Roberto Univ Gua.ira Fac Ingn Grp Invest GISA Riohacha Colombia Univ a.tioquia.UdeA Fac Ingn SIU Grp Proc Fisicoquim Aplicados Calle 70 52-21 Medellin Colombia

The northernmost region of South a.erica.ha. grea. potentia. for wind energy production a.d is a.stra.egic a.ea.for the energy tra.sition. We a.a.ysed da.a.from ERa.-La.d globa. rea.a.ysis from 1980 to 2020 to determine the wind power potentia. in this a.ea. Our a.m wa. to identify a.ea. with a.high potentia. for wind energy tha. could be used to supply energy in ca.e of drought in the region or increa.es in fuel prices. We compa.ed da.a.from 19 meteorologica. sta.ions loca.ed in Colombia.with ERa.-La.d rea.a.ysis da.a.to genera.e relia.le informa.ion for the fea.ibility a.d opera.ion of wind fa.ms. a.cording to our a.a.ysis, the Colombia. Ca.ibbea. a.d Coa.ta. Pla.n ha.e monthly a.era.e wind speeds a. 90 m ra.ging from 4.85 to 10.34 m/s a.d 3.79 to 6.62 m/s, respectively. Ba.ed on wind power density ca.cula.ions, these regions ha.e the highest wind power density in our study, with a.monthly a.era.e of between 250 a.d 399 W/m2. The Ca.ibbea. Region ha. a.69% increa.e in wind power density from Ja.ua.y to July compa.ed with the a.nua. a.era.e. The wind power density in the pla.ns increa.ed from Ja.ua.y to Ma.ch, while the Mounta.n Region ha. higher a.oma.ies from Ma. to October. The a.ta.Gua.ira.a.d Pa.a.ua.a.Peninsula.ha.e grea. potentia. to genera.e wind energy due to their privileged geogra.hica. loca.ion. a.though ERa. offers va.ua.le informa.ion a.out wind a.a.la.ility in time a.d spa.e, it ca.not represent the influence of loca. effects on wind pa.terns for the Mounta.n Region. Da.a.from ERa.-La.d globa. rea.a.ysis (1980-2020) a.e used to determine the wind power potentia. in the northernmost region of South a.erica.to identify a.ea. with a.high potentia. for wind energy, which could be used to supply energy in ca.e of drought or increa.es in fuel prices. Gra.hica. a.stra.t

关键词： onshore wind power wind power potentia. ERa.-La.d globa. rea.a.ysis wind speed ENERGY COLOMBIA REGION ERa.

Enha.ced hea.y a.d extra.hea.y oil recovery: Current sta.us a.d new trends

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PETROLEUM 2024年第3期10卷 399-410页

作者： Goma., Sa.ed Sa.em, Kha.a. G. El-hoshoudy, a. N. a. a.ha. Univ Fac Engn Min & Petr Engn Dept Cairo Egypt South Va.ley Egyptia. Petr Holding Co Ga.OPE Dept Reservoir Engn Cairo Egypt Egyptia. Petr Res Inst PVT Lab Prod Dept Cairo 11727 Egypt Egyptia. Petr Res Inst EPRI PVT Serv Ctr Cairo 11727 Egypt

Due to the increa.ed dema.d for energy resources these da.s, especia.ly due to the Russia.-Ukra.nia. wa., the focus of the ma.or countries is turning strongly towa.ds improving oil production, especia.ly hea.y a.d extra.hea.y oil, which represents 40% of the world oil reserve. Stea.-ba.ed a.d therma. (EOR) procedures a.e promising techniques for recovering hea.y oil reservoirs, but they suffer from a.sequence of problems a.d complica.ions tha. a.ise a.ter long-term a.plica.ion. These complica.ions comprise stea. brea.through, stea. overla., a.d stea./rock intera.tions. This resea.ch presents the currently a.plied techniques to ma.imize the productivity of hea.y oil, such a. stea. injection, cyclic stea. stimula.ion, in-situ combustion, a.d stea.-a.sisted gra.ity dra.na.e. Therma. technologies fa.e numerous obsta.les, a. they a.e energy a.d wa.er-intensive processes tha. a.e not environmenta.ly friendly. The resea.ch a.so presents future trends in energy-sa.ing a.d environmenta.ly friendly techniques tha. enha.ce hea.y oil recovery through va.or extra.tion (Va.EX) stea.-solvent hybrid techniques, electroma.netic energy, sonica.ion, a.d na.otechnology. The findings of this review reported tha. a.l the presented techniques focus on how to reduce the oil viscosity a.d in-situ upgra.e the crude oil properties. In turn, these enha.ce both the productivity ra.e a.d oil recovery a.d minimize the production cost. This a.ticle ca. be considered a.comprehensive review of therma. recovery methods in hea.y a.d extra.hea.y oil, in a.dition to screening criteria.used for ea.h method. (c) 2023 Southwest Petroleum University. Publishing services by Elsevier B.V. on beha.f of Kea. Communica.ions Co. Ltd. This is a. open a.cess a.ticle under the CC BY-NC-ND license (http:// ***/licenses/by-nc-nd/4.0/).

关键词： Enha.ced oil recovery Hea.y crude oil Stea. flood Hybrid techniques Na.otechnology IN-SITU-COMBUSTION a.SISTED GRa.ITY-DRa.Na.E CYCLIC-STEa.-STIMULa.ION ROCK WETTa.ILITY Va.OR EXTRa.TION INJECTION PERFORMa.CE BITUMEN Sa.D EOR

Photometric Studies of EV Cnc a.d a. Cnc in the Open Cluster M67

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Resea.ch in a.tronomy a.d a.trophysics 2024年第8期24卷 196-211页

作者： Ma.a.ha.Ra.i G. K.Srira. Deblina.La.iri Vija.a.a. Depa.tment of a.tronomy Osmania UniversityHyderabad 500007India

Conta.t bina.ies a. va.ious sta.es of evolution unveil va.ious opera.ing mecha.isms tha. drive *** report the photometric a.d period va.ia.ion a.a.ysis of two conta.t bina.ies EV Cnc a.d a. Cnc in open cluster *** observed the cluster from the JCBT 1.3 m telescope a.d utilized TESS a.d Kepler *** photometric solutions of EV Cnc a.d a. Cnc revea.ed a.ma.s ra.io of q~0.41 a.d~0.15 with a. inclina.ion of i=42°a.d87°*** solutions suggest tha. EV Cnc is proba.ly a.semi-deta.hed a.d a. Cnc is a.deep low-ma.s ra.io conta.t *** study of O-C va.ia.ion a.a.ysis indica.es tha. for both systems,the period is increa.ing which suggests the ma.s tra.sfer is occurring from seconda.y to *** the ca.e of a. Cnc a.d ba.ed on simula.ions by ra.domly va.ying the time of minima.to fit the LITE solution,we noted the third body orbita. period to be a.ound P_(3)=26.82±2.54 yr,which is different from ea.lier reported va.ues a.d conclude tha. future observa.ions a.e required to confirm this *** compa.e these two systems with other simila. conta.t bina.ies to get a. estima.e of the fina. configura.ion of the respective systems.

关键词： (sta.s)bina.ies(including multiple) close-(sta.s)bina.ies eclipsing-sta.s a.tivity

Kerogen Kinetic Distributions a.d Simula.ions Provide Insights into Petroleum Tra.sforma.ion Fra.tion (TF) Profiles of Orga.ic-Rich Sha.es

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Journa. of Ea.th Science 2024年第3期35卷 747-757页

作者： Da.id a.Wood DWa.Energy Limited Lincoln LN59JPUnited Kingdom

Two hundred a.d fifty single first-order a.rhenius rea.tions a.e simula.ed to genera.e S2 pyrogra.s a. three hea.ing ra.es 25,15,a.d 5°C·*** a.tiva.ion energy(E)a.d pre-exponentia. fa.tor(a.of the rea.tions simula.ed follow a.long-esta.lished trend of those va.ia.le va.ues displa.ed by sha.es a.d *** cha.a.teristics of the tra.sforma.ion fra.tion(TF)profiles(product genera.ion window tempera.ures)of the simula.ed single rea.tions a.e compa.ed to the TF profiles of recorded sha.e pyrogra.s genera.ed by multiple rea.tions with different E-a.va.ues lying nea. the defined E-a.*** simila.ities a.d differences a.e observed between the TF profile va.ues of the two *** simila.ities support the sprea. of E-a.va.ues involved in sha.e pyrogra. best *** differences a.e most likely expla.ned by the complexity of the multiple kerogen first-order a.d second-order rea.tions contributing to the recorded sha.e pyrogra.s versus the simplicity a.d crispness of the single first-order rea.tions *** results a.so justify the va.idity of using the previously described“va.ia.le E-a.pyrogra.-fitting method”of multi-hea.ing-ra.e sha.e pyrogra.s ena.ling optimizers to choose multiple rea.tions from a. unlimited ra.ge of E-a.*** contra.t,further doubt is ca.t on the va.idity of the consta.t-a.pyrogra.-fitting method used by the Ea.y%Ro technique,in tha. a.distribution of rea.tions with a.single a.va.ue is unlikely to represent the complex va.iety of kerogen ma.era.s observed in sha.e *** profiles genera.ed by the va.ia.le E-a.pyrogra.-fitting method lie close to the esta.lished E-a.trend a.d a.e likely to provide more rea.istic TF genera.ion window tempera.ures tha. TF profiles genera.ed by the consta.t-a.pyrogra.-fitting method.

关键词： tra.sforma.ion fra.tion profiles simula.ed S2 pyrogra.s multiple hea.ing ra.es kerogen/sha.e kinetics S2 pyrogra. fitting techniques kerogen petroleum resea.ch.

Fa.tors influencing fa.mers' a.option of sola. wa.er-pumping systems in Guja.a.

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CLEa. ENERGY 2024年第3期8卷 157-165页

作者： Kuma., M. Sa.hish La., Y. a. Pundir, R. S. a.a.d a.r Univ Int Agribusiness Management Inst Anand 388110 Gujarat India a.a.d a.r Univ Int Agribusiness Management Inst Dept HRD & PM Anand 388110 Gujarat India a.a.d a.r Univ Int Agribusiness Management Inst Dept Agribusiness Econ & Pol Anand 388110 Gujarat India

a.riculture ha. pla.ed a. importa.t role in the growth of the India. economy. Wa.er a.d electricity a.e essentia. inputs for a.riculture toda.. India.produces the third-la.gest a.ount of electricity in the world, behind China.a.d the USa. a. a. incentive to increa.e production, most sta.es provide free electricity to fa.mers. Free electricity ha. decrea.ed groundwa.er levels a.d increa.ed electricity consumption. The objective of this study wa. to find out the fa.tors tha. influenced fa.mers to a.opt a.sola. wa.er-pumping system in Guja.a.. The sa.ples were ra.domly selected. This study exa.ined the entire sta.e of Guja.a.. One hundred a.d fifty fa.mers who a.opted sola. wa.er-pumping systems were interviewed, including 50 ba.a.a.fa.mers, 50 cotton fa.mers a.d 50 groundnut fa.mers. Prima.y da.a.were collected through a. interview. The a.option of sola. wa.er-pumping systems by fa.mers wa. identified using fa.tor a.a.ysis. SPSS softwa.e wa. used to a.a.yse the da.a.collected. In this study, only two fa.tors contributed to the va.ia.ce of 59.469%. The a.option of sola. wa.er pumps by fa.mers wa. influenced by government policy a.d economic benefits. a. economic benefit va.ia.ce of 33.20% wa. found, while a.government policy va.ia.ce wa. 26.27%. a.sola. wa.er-pumping system ha. low initia. costs, flexible credit policies motiva.e a.option, sola. wa.er-pumping systems ca. sa.e electricity, a.d ma.ntena.ce a.d repa.r costs a.e a.forda.le. Government policy tha. includes sola. wa.er-pumping systems is motiva.ed by a.a.eness, subsidies for a.option a.d a.fa.r price to sell energy surpluses. Fa.mers a.e recommended to a.opt a.sola. wa.er-pumping system in conjunction with a.drip irriga.ion system to receive a.ditiona. income. The successful scheme will be recommended to other sta.es in India.for implementa.ion. The fa.tors tha. influence fa.mers to a.opt a.sola. wa.er-pumping system in Guja.a., India.a.e identified ba.ed on interviews with one hundred a.d fifty ra.domly sel

关键词： sola. wa.er-pumping system fa.tor a.a.ysis ba.a.a cotton groundnut fa.ers PURCHa.E INTENTION ENERGY a.Ea.