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Energy supply for water electrolysis systems using wind and solar energy to produce hydrogen: a case study of Iran

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Frontiers in Energy 2019年第3期13卷 539-550页

作者： mostafa REZAEI ali mostafaEIPOUR Mojtaba QOLIPOUR Mozhgan MOMENI Industrial Engineering Department Yazd UniversityYazd ***Iran

Due to acute problems caused by fossil fuels that threaten the environment, conducting research on other types of energy carriers that are clean and renewable is of great importance. Since in the past few years hydrogen has been introduced as the future fuel, the aim of this study is to evaluate wind and solar energy potentials in prone areas of Iran by the Weibull distribution function (WDF) and the Angstrom-Prescott (AP) equation for hydrogen production. To this end, the meteorological data of solar radiation and wind speed recorded at 10 m height in the time interval of 3 h in a five-year period have been used. The findings indicate that Manjil and Zahedan with yearly wind and solar energy densities of 6004 (kWh/m2) and 2247 0cWh/m2), respectively, have the greatest amount of energy among the other cities. After examining three different types of commercial wind turbines and photovoltaic (PV) systems, it becomes clear that by utilizing one set of Gamesa G47 turbine, 91 kg/d of hydrogen, which provides energy for 91 car/week, can be produced in Manjil and will save about 1347 L of gasoline in the week. Besides, by installing one thousand sets of X21-345 PV systems in Zahedan, 20 kg/d of hydrogen, enough for 20 cars per week, can be generated and 296 L of gasoline can be saved. Finally, the RETScreen software is used to calculate the annual CO2 emission reduction after replacing gasoline with the produced hydrogen.

关键词： wind energy solar energy water electrolysis hydrogen production Weibull distribution function (WDF) Angstrom丒Prescott (AP) equation

Micromechanical simulation and experimental investigation of aluminum-based nanocomposites

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Defence Technology（防务技术） 2021年第1期17卷 196-201页

作者： Mohammad Javad Ghasemi Mohammad Silani ali Maleki mostafa Jamshidian Department of Mechanical Engineering Isfahan University of TechnologyIsfahan84156-83111Iran

Ceramic reinforced metal matrix nanocomposites are widely used in aerospace and auto industries due to their enhanced mechanical and physical *** this research,we investigate the mechanical properties of aluminum/Nano-silica composites through experiments and ***/Nanosilica composite samples with different weight percentages of silica nanoparticles are prepared via powder *** this method,Nano-silica and aluminum powders are mixed and compressed in a mold,followed by sintering at high *** tensile testing of the nanocomposite samples shows that adding one percent of Nano-silica causes a considerable increase in mechanical properties of nanocomposite compared to pure aluminum.A computational micromechanical model,based on a representative volume element of aluminum/silica nanocomposite,is developed in a commercial finite element *** model employs an elastoplastic material model along with a ductile damage model for aluminum matrix and linear elastic model for nano-silica *** careful determination of model parameters from the experimental results of pure aluminum samples prepared by powder metallurgy,the proposed computational model has shown satisfactory agreement with *** validated computational model can be used to perform a parametric study to optimize the microstructure of nanocomposite for enhanced mechanical properties.

关键词： Aluminum/nano-silica composites Powder metallurgy Micromechanics

Optimization of electrochemically synthesized Cu3(BTC)2 by Taguchi method for CO2/N2 separation and data validation through artificial neural network modeling

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Frontiers of Chemical Science and Engineering 2020年第2期14卷 233-247页

作者： Kasra Pirzadeh ali Asghar Ghoreyshi mostafa Rahimnejad Maedeh Mohammadi Chemical Engineering Department Babol Noshirvani University of TechnologyBabolIran

Cu(BTC),a common type of metal organic framework(MOF),was synthesized through electrochemical route for CO capture and its separation from *** method was employed for optimization of key parameters affecting the synthesis of Cu(BTC).The results indicated that the optimum synthesis conditions with the highest CO selectivity can be obtained using 1 g of ligand,applied voltage of 25 V,synthesis time of 2 h,and electrode length of 3 *** single gas sorption capacity of the synthetized microstructure Cu(BTC)for CO(at 298 K and 1 bar)was a considerable value of 4.40 mmol·*** isosteric heat of adsorption of both gases was calculated by inserting temperature-dependent form of Langmuir isotherm model in the Clausius-Clapeyron *** adsorption of CO/N binary mixture with a concentration ratio of 15/85 vol-%was also studied experimentally and the result was in a good agreement with the predicted value of IAST ***,Cu(BTC)showed no considerable loss in CO adsorption after six sequential *** addition,artificial neural networks(ANNs)were also applied to predict the separation behavior of CO/N mixture by MOFs and the results revealed that ANNs could serve as an appropriate tool to predict the adsorptive selectivity of the binary gas mixture in the absence of experimental data.

关键词： Cu3(BTC)2 electrochemical synthesis CO2 adsorption Taguchi optimization ANN modeling

The role of CO2 and ion type in the dynamic interfacial tension of acidic crude oil/carbonated brine

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Petroleum Science 2019年第4期16卷 850-858页

作者： mostafa Lashkarbolooki ali Zeinolabedini Hezave Shahab Ayatollahi School of Chemical Engineering Babol Noshirvani Incubation Centre of Science and Technology Park Fanavari Atiyeh Pouyandegan Exir CompanyArākIran School of Chemical and Petroleum Engineering Sharif University of TechnologyTehranIran

The e ects of CO2 and salt type on the interfacial tension(IFT) between crude oil and carbonated brine(CB) have not been fully understood. This study focuses on measuring the dynamic IFT between acidic crude oil with a total acid number of 1.5 mg KOH/g and fully CO2-saturated aqueous solutions consisting of 15,000 ppm of KCl, NaCl, CaCl2 and MgCl2 at 30 °C and a wide range of pressures(500–4000 psi). The results of IFT measurements showed that solvation of CO2 into all the studied aqueous solutions led to an increase in IFT of acidic crude oil(i.e., comparison of IFT of crude oil/CB and crude oil/brine), while no significant e ect was observed for pressure. In contrast, the obtained results of studied salts indicated a positive e ect on the IFT reduction of acidic crude oil/carbonated water(CW)(i.e., comparison of IFT of crude oil/CB and crude oil/CW).

关键词： Carbonated brine Interfacial tension Crude oil Enhanced oil recovery(EOR) CO2 sequestration

Biomass and carbon stocks in three types of Persian oak(Quercus brantii ***)of Zagros forests in a semi-arid area,Iran

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Journal of Arid Land 2020年第5期12卷 766-774页

作者： ali MAHDAVI Soghra SAIDI Yaghob IRANMANESH mostafa NADERI Faculty of Agriculture and Natural Resources Ilam UniversityIlam 69315516Iran Research Division of Natural Resources Chaharmahal and Bakhtiari Agricultural and Natural Resources Research and Education CenterAREEOShahrekord ***Iran

Persian oak(Quercus brantii ***)is a dominant tree species of Zagros forests in a semi-arid area,western ***,the capacity of biomass and carbon stocks of these forests is not well *** selected three types of oak,i.e.,seed-originated oak,coppice oak and mixed(seed-originated and coppice)oak of Zagros forests in Dalab valley,Ilam Province,Iran to survey the capacity of biomass and carbon stocks in *** plots with an area of 1000 m2 were systematically and randomly assigned to each type of *** characteristics of trees,such as diameter at breast height(DBH),height,crown diameter and the number of sprouts in each plot were ***,aboveground biomass(AGB),belowground biomass(BGB),aboveground carbon stock(AGCS)and belowground carbon stock(BGCS)of each tree in plots were calculated using allometric *** litterfall biomass(LFB)and litterfall carbon stock(LFCS)were measured in a quadrat with 1 m×1 m in each ***-way analysis of variance and Duncan's test were performed to detect the differences in biomass and carbon stocks among three types of *** showed that AGB,BGB and BGCS were significantly different among three types of *** highest values of AGB,AGCS,BGB and BGCS in seed-originated oak were 76,043.25,14,725.55,36,737.79 and 7362.77 kg/hm2,***,the highest values of LFB and LFCS in seed-originated oak were 3298.33 and 1520.48 kg/hm2,respectively,which were significantly higher than those of the other two types of *** results imply the significant role of seed-originated oak for the regeneration of Zagros *** conservation strategy of seed-originated oak is an important step in the sustainable management of Zagros forests in Iran.

关键词： biomass carbon stock seed-originated forest coppice forest Zagros forest

中国地下金属矿山采动灾害的机理、预防与控制：挑战与对策（英文）

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Journal of Central South University 2024年第08期 2549-2606页

作者：李鹏蔡美峰苗胜军任奋华 GORJIAN mostafa 彭超 Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing Department of Earth Ocean and Atmospheric Sciences University of British Columbia Deep Mining Laboratory of Shandong Gold Group Co. Ltd.

金属矿产资源在国民经济发展中发挥着不可或缺的作用。地下金属矿山采动灾害严重威胁采矿安全，是亟待解决的重大科技问题。本文系统介绍了中国金属矿山冒顶、片帮、坍塌、大变形、岩爆、地面沉陷、突水等典型动力灾害的发生现状，分析... 详细信息

金属矿产资源在国民经济发展中发挥着不可或缺的作用。地下金属矿山采动灾害严重威胁采矿安全，是亟待解决的重大科技问题。本文系统介绍了中国金属矿山冒顶、片帮、坍塌、大变形、岩爆、地面沉陷、突水等典型动力灾害的发生现状，分析了这些采动灾害的特点，总结了中国一些金属矿山发生的动力灾害实例，重点探讨了这些灾害的发生机理、监测预警方法和防控技术，同时提出了一些新的观点、建议和解决方案。此外，指出了当前灾害研究中存在的一些不足，并展望了今后提高中国金属矿山动力灾害防控水平的努力方向。上述方面前瞻性的关键创新理论和技术的集成，将大大提升中国金属矿山行业防灾减灾的认知水平，实现从被动救灾向主动防灾的重大转变。

关键词：地下金属矿山动力灾害机理监测预警防控

Improving the operational stability of perovskite solar cells with cesium-doped graphene oxide interlayer

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Journal of Energy Chemistry 2024年第9期96卷 483-490页

作者： Masaud Almalki Katerina Anagnostou Konstantinos Rogdakis Felix T.Eickemeyer mostafa Othman Minas M.Stylianakis Dimitris Tsikritzis Anwar Q.Alanazi Nikolaos Tzoganakis Lukas Pfeifer Rita Therisod Xiaoliang Mo Christian M.Wolff Aïcha Hessler-Wyser Shaik M.Zakeeruddin Hong Zhang Emmanuel Kymakis Michael Grätzel Laboratory of Photonics and Interfaces École Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland Department of Electrical and Computer Engineering Hellenic Mediterranean UniversityHeraklionCrete 71410Greece Institute of Electrical and Microengineering(IEM)Photovoltaics and Thin-Film Electronics Laboratory(PV-Lab) École Polytechnique Fédérale de Lausanne(EPFL)Neuchâtel 2000Switzerland Department of Nursing Faculty of Health SciencesHellenic Mediterranean UniversityCrete 71410Greece Centre Interdisciplinaire de Microscopie Electronique École Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland Future Energy Technology Institute King Abdulaziz City for Science and Technology(KACST)P.O.Box 6086Riyadh 11442Saudi Arabia State Key Laboratory of Photovoltaic Science and Technology Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and PerceptionInstitute of OptoelectronicsDepartment of Materials ScienceFudan UniversityShanghai 200433China

Perovskite solar cells(PSCs)have made great advances in terms of power conversion efficiency(PCE),yet their subpar stability continues to hinder their *** interface between the perovskite layer and the charge-carrier transporting layers plays a crucial role in undermining the stability of *** this work,we propose a strategy to stabilize high-performance PSCs with PCE over 23%by introducing a cesium-doped graphene oxide(GO-Cs)as an interlayer between the perovskite and hole-transporting *** GO-Cs treated PSCs exhibit excellent operational stability with a projected T80(the time where the device PCE reduces to 80%of its initial value)of 2143 h of operation at the maximum powering point under one sun illumination.

关键词： Perovskite solar cells Doped graphene oxide Graphene related material Long-term operational stability

Nonclassical Symmetries for Nonlinear Partial Differential Equations via Compatibility

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Communications in Theoretical Physics 2011年第10期56卷 611-616页

作者： mostafa F.El-Sabbagh Ahmad T.ali Mathematics Department Faculty of ScienceMinia UniversityMiniaEgypt King Abdul Aziz University Faculty of ScienceDepartment of MathematicsP.O.Box 80203Jeddah21589Saudi Arabia

The determining equations for the nonclassical symmetry reductions of nonlinear partial differential equations with arbitrary order can be obtained by requiring the compatibility between the original equations and the invariant surface conditions. The （2＋1）-dimensional shallow water wave equation, Boussinesq equation, and the dispersive wave equations in shallow water serve as examples i11ustrating how compatibility leads quickly and easily to the determining equations for their nonclassical symmetries.

关键词： nonclassical symmetriesm compatibility (2+ 1)-dimensional shallow water wave Boussinesq equa-tions and the dispersive wave equations in shallow water

Experimental investigation of the application of Eucalyptus bark to prevent lost circulation in pay zones with acid dissolution capability

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Petroleum 2021年第2期7卷 152-159页

作者： mostafa Sedaghatzadeh Khalil Shahbazi Peyman Pourafshary Seyed ali Razavi National Iranian Drilling Company Ahvaz90161635Iran Petroleum University of Technology Abadan***Iran School of Mining and Geoscience Nazarbayev UniversityNur-Sultan010000Kazakhstan

Loss of drilling fluid is a common problem during the drilling of wells and it restricts the appropriate functionality of *** fluid loss significantly increases drilling costs and non-productive time as well as the drilling operation *** investigations have been carried out in order to find appropriate mud additives that either block fractures and pores or reduce fluid loss by improving the fluid ***,environmentally friendly and effective additives are still required by the drilling ***,the application of available materials in each region,to produce appropriate additives,is a challenge for the oil *** this study,Eucalyptus Camaldulensis(EUC)bark powder has been chosen as a new,fibrous,cheap,environmentally friendly and available material to control fluid loss,particularly in southern *** characterization tests,such as acid dissolution and fluid loss control,were carried out to study the performance of the new proposed *** by hydrochloric acid and sulfuric acid were studied at various acid concentrations and *** fluid loss was also measured at different EUC *** study showed that EUC powder can reduce the final fluid loss by 88-97%,the initial fluid loss by 45-66%,and the total loss by 87e94%,which is a satisfactory level.

关键词： Eucalyptus bark Lost circulation Acid solubility Drilling mud Fluid loss