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Magnetohydrodynamic flow and heat transfer impact on Zno-SAE50 nanolubricant flow over an inclined rotating disk

Journal of Central South University 2019年第5期26卷 1146-1160页

作者： NAYAK M K MEHMooD Rashid MAKINDE o D mahian o CHAMKHA Ali J Department of Physics Radhakrishna Institute of Technology and EngineeringBhubaneswar-752057India Department of Mathematics Faculty of Natural ScienceHITEC University Taxila-47070Pakistan Faculty of Military Science Stellenbosch UniversityPrivate Bag X2Saldanha 7395South Africa Center for Advanced Technologies Ferdowsi University of MashhadMashhadIran School of Aeronautic Science and Engineering Beihang UniversityBeijing 100191China Mechanical Engineering Department Prince Sultan Endowment for Energy and EnvironmentPrince Mohammad Bin Fahd UniversityAl-Khobar 31952Saudi Arabia RAK Research and Innovation Center American University of Ras Al KhaimahP.O.Box 10021Ras Al KhaimahUnited Arab Emirates

The present article has been fine-tuned with the investigation of mixed convection Darcy-Forchheimer flow of Zno-SAE50 oil nanolubricant over an inclined rotating disk under the influence of uniform applied magnetic field applied to various *** current study has been enriched with additional consideration of slip flow,thermal radiation,viscous dissipation,Joulian dissipation and internal *** view of augmentation of thermal conductivity of nanolubricant,a new micro-nano-convection model namely Patel model has been *** specialty of this model involves the effects of specific surface area and nano-convection due to Brownian motion of nanoparticles,kinetic theory based micro-convection,liquid layering and particle *** transformed governing equations have been solved numerically by using Runge-Kutta-Fehlberg *** analysis of the present study has shown that applied magnetic field,porosity of the medium,velocity slip and inertia coefficient account for the slowing down of radial as well as tangential flow of Zno-SAE50 oil nanolubricant,thereby leading to an improvement in velocity and thermal boundary layers.

关键词： Zno-SAE50 nanofluid Darcy-Forchheimer MHD flow thermal radiation velocity slip viscous dissipation internal heating

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Harvesting Energy Via Water Movement and Surface Ionics in Microfibrous Ceramic Wools

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ENERGY & ENVIRoNMENTAL MATERIALS 2024年第6期7卷 332-341页

作者： Kaur, Manpreet Alagumalai, Avinash mahian, omid osman, Sameh M. Nagao, Tadaaki Wang, Zhong Lin Natl Inst Mat Sci NIMS Res Ctr Mat Nanoarchitecton WPI MANA 1-1 Namiki Tsukuba Ibaraki 3050044 Japan Univ Calgary Dept Chem & Petr Engn 2500 Univ Dr NW Calgary AB T2N 1N4 Canada Hokkaido Univ Dept Condensed Matter Phys Sapporo Hokkaido 0600810 Japan GMR Inst Technol Dept Mech Engn Rajam 532127 Andhra Pradesh India Ningbo Univ Fac Mech Engn & Mech Zhejiang Prov Engn Res Ctr Safety Pressure Vessel Ningbo 315211 Peoples R China Imperial Coll London Dept Chem Engn London SW7 2AZ England Chinese Acad Sci Beijing Inst Nanoenergy & Nanosyst Beijing 100083 Peoples R China Tomsk State Univ Lab Convect Heat & Mass Transfer Tomsk 634045 Russia Georgia Inst Technol Sch Mat Sci & Engn Atlanta GA 30332 USA King Saud Univ Coll Sci Chem Dept POB 2455 Riyadh 11451 Saudi Arabia

Due to the push for carbon neutrality in various human activities, the development of methods for producing electricity without relying on chemical reaction processes or heat sources has become highly significant. Also, the challenge lies in achieving microwatt-scale outputs due to the inherent conductivity of the materials and diverting electric currents. To address this challenge, our research has concentrated on utilizing nonconductive mediums for water-based low-cost microfibrous ceramic wools in conjunction with a NaCl aqueous solution for power generation. The main source of electricity originates from the directed movement of water molecules and surface ions through densely packed microfibrous ceramic wools due to the effect of dynamic electric double layer. This occurrence bears resemblance to the natural water transpiration in plants, thereby presenting a fresh and straightforward approach for producing electricity in an ecofriendly manner. The generator module demonstrated in this study, measuring 12 x 6 cm(2), exhibited a noteworthy open-circuit voltage of 0.35 V, coupled with a short-circuit current of 0.51 mA. Such low-cost ceramic wools are suitable for ubiquitous, permanent energy sources and hold potential for use as self-powered sensors and systems, eliminating the requirement for external energy sources such as sunlight or heat. Electrokinetic power generation through ceramic *** this work, microfibrous ceramic wools are being explored for electrokinetic power generation through water transpiration. The generator module measuring 12 x 6 cm(2), demonstrated a noteworthy open-circuit voltage of 0.35 V, coupled with a short-circuit current of 0.51 mA. This scalable ceramic wool device generates electricity without relying on sunlight or heat.

关键词： ceramic microfibers energy harvesting power generation self-powered systems water evaporation PoWER-GENERATIoN GRAPHENE oXIDE TRIBoELECTRIC NANoGENERAToR CoNTACT-ELECTRIFICATIoN ELECTRICITY LIQUID DRIVEN FLoW

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A Biomass-Based Hydrogel Evaporator Modified Through Dynamic Regulation of Water Molecules:Highly Efficient and Cost-Effective

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Energy & Environmental Materials 2023年第3期6卷 20-30页

作者： Boqiu Luo Jin Wen Hao Wang Size Zheng Rui Liao Wenjing Chen omid mahian Xiaoke Li College of Materials and Chemistry&Chemical Engineering Chengdu University of TechnologyChengdu 610059China School of optoelectronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu 611731China College of Resources and Environment Chengdu University of Information TechnologyChengdu 610225China School of Chemical Engineering and Technology Xi’an Jiaotong UniversityXi’an 710061China Department of Chemical Engineering Imperial College LondonLondon SW72AZUK Renewable Energy and Micro/Nano Sciences Lab Department of Mechanical EngineeringFaculty of EngineeringFerdowsi University of MashhadMashhad 91779-48974Iran

Solar-driven hydrogel evaporator used for water purification demonstrates great potential in seawater desalination and domestic sewage ***,much uncertainty still exists about the most efficient design to obtain cost-effective drinkable *** this paper,a natural rich biomass Nicandra physalodes(Linn.)*** was introduced into the polyvinyl alcohol network to control the water distribution during evaporation and build a low-cost hybrid hydrogel solar evaporator with a total material cost of$7.95 m^(−2).The mixed evaporator works stably in a long-span acid–base range(pH 1–14)and salinity range(0–320 g kg^(−1)).Its daily water purification capacity can reach 24.4 kg m^(−2)with a water purification capacity of 3.51 kg m^(−2)h^(−1)under *** paper provides a new possibility for a highly efficient and cost-effective water desalination system with guaranteed water quality by focusing on the dynamic regulation of water molecules at the evaporation interface.

关键词： desalination hydrogels interfacial evaporation polysaccharide solar energy

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