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Com.ustion analysis of a hydrogen-diesel fuel operated DI diesel engine with exhaust gas recirculation

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Frontiers in Energy 2017年第4期11卷 568-574页

作者： m. loganathan A. VELm.RUGAN TOm.PAGE E. JAm.S GUNASEKARAN P. TAm.LARASAN Departm.nt of m.chanical Engineering Annamalai University Anna- malainagar 608002 India Product Design and m.nufacturing Loughborough University Lough- borough LE11 3TU United Kingdom

The rapid depletion of fossil fuel and growing dem.nd necessitates researchers to find alternative fuels which are clean and sustainable. The need for finding renewable, low cost and environm.ntally friendly fuel resources can never be understated. An efficient m.thod of generation and storage of hydrogen will enable autom.tive m.nufacturers to introduce hydrogen fuelled engine in the m.rket. In this paper, a conventional DI diesel engine was m.dified to operate as gas engine. The intake m.nifold of the engine was supplied with hydrogen along with recirculated exhaust gas and air. The injection rates of hydrogen were m.intained at three levels with 2 L/m.n, 4 L/m.n, 6 L/m.n and 8 L/m.n and 10 L/m.n with an injection pressure of 2 bar. m.ny of the com.ustion param.ters like heat release rate （HRR）, ignition delay, com.ustion duration, rate of pressure rise （ROPR）, cum.lative heat release rate （CHR）, and cyclic pressure fluctuations were m.asured. The HRR peak pressure decreased with the increase in EGR rate, while com.ustion duration increased with the EGR rate. The cyclic pressure variation also increased with the increase in EGR rate.

关键词： hydrogen exhaust gas recirculation (EGR),diesel com.ustion heat release rate (HRR) com.ustionduration

Synthesis and Crystal Structure of an Anionic Linear Trinuclear Copper(Ⅱ) Com.lex Containing 2-Thenoyltrifluoroacetonato and Acetato Ligands

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Chinese Journal of Structural Chem.stry 2014年第1期33卷 19-26页

作者： loganathan Nagarajan ROODT Andreas Departm.nt of Chem.stry University of the Free State

A novel anionic trinuclear linear copper（II） com.lex {[Et3NH][Cul.5（CH3COO）- （TTA）3] } 2 （1, TTA = 2-thenoyltrifluoroacetonate） has been synthesized in a direct reaction involving copper（]l） acetate m.nohydrate, TTA and excess triethylam.ne base in dichlorom.thane solvent. Green colored X-ray quality crystals of 1 were grown from.n-hexane solvent at room.tem.erature. The data were collected at 100 K. Com.ound I crystallizes in the m.noclinic P21/n space group （a = 11.2141（8）, b = 19.0965（13）, c = 17.3680（14） A, β = 90.225（2）°, V= 3719.3（5） A3, m. = 1840.14, Dc = 1.643 m./m., F（000） = 1866, μ = 1.129 m.^-1 and Z = 2）. The asym.etric unit of 1 contains two copper atom., one of which lies on a crystallographic inversion center with 50% occupancy.

关键词： copper crystals acetate m.noclinic 1,3-diketonates

m.D effects on free convective flow over m.ving sem.-infinite vertical cylinder with tem.erature oscillation

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Applied m.them.tics and m.chanics(English Edition) 2011年第11期32卷 1367-1376页

作者： P.loganathan m.KANNAN P.GANESAN Departm.nt of m.them.tics Anna University Chennai Chennai 600025India Departm.nt of m.them.tics Anand Institute of Higher Technology KazhipatturChennai 603103India

Num.rical solutions of m.gnetodynam.cs （m.D） effects on the free convective flow of an incom.ressible viscous fluid past a m.ving sem.-infinite vertical cylinder with tem.erature oscillation are presented. The dim.nsionless, unsteady, non-linear, and coupled governing partial differential equations are solved by using an im.licit finite difference m.thod of the Crank-Nicolson type. The velocity, tem.erature, and concentration profiles are studied for various param.ters. The local skin-friction, the average skinfriction, the Nusselt num.er, and the Sherwood num.er are also analyzed and presented graphically. The results are com.ared with available results in literature, and are found to be in good agreem.nt.

关键词： free convection m.D finite difference m.thod heat and m.ss transfer

Im.roved Load-Balanced Clustering for Energy-Aware Routing(ILBC-EAR)in WSNs

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Com.uter System. Science & Engineering 2023年第1期44卷 99-112页

作者： D.loganathan m.Balasubram.ni R.Sabitha S.Karthik Departm.nt of Electronics and Com.unication Engineering Info Institute of EngineeringCoimbatore641107India Departm.nt of Com.uter Science and Engineering SNS College of TechnologyCoimbatore641035India

Sensors are considered as im.ortant elem.nts of electronic *** m.ny applications and service,Wireless Sensor Networks(WSNs)are involved in significant data sharing that are delivered to the sink node in energy efficient m.n-ner using m.lti-hop ***,the m.jor challenge in WSN is the nodes are having lim.ted battery resources,it is im.ortant to m.nitor the consum.tion rate of energy is very m.ch ***,reducing energy con-sum.tion can increase the network lifetim. in effective *** that,clustering m.thods are widely used for optim.zing the rate of energy consum.tion am.ng the sensor *** that concern,this paper involves in deriving a novel m.del called Im.roved Load-Balanced Clustering for Energy-Aware Routing(ILBC-EAR),which m.inly concentrates on optim.l energy utilization with load-balanced process am.ng cluster heads and m.m.er *** providing equal rate of energy consum.tion am.ng nodes,the dim.nsions of fram.d clusters are ***,the m.del develops a Finest Routing Schem. based on Load-Balanced Clustering to transm.t the sensed inform.tion to the sink or base *** evaluation results depict that the derived energy aware m.del attains higher rate of life tim. than other works and also achieves balanced energy rate am.ng head ***,the m.del also provides higher throughput and m.nim.l delay in delivering data packets.

关键词： Wireless sensor networks energy consum.tion load balanced clustering finest routing

Experim.ntal and num.rical analyses of m.gnesium.alloy hot workability

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Journal of m.gnesium.and Alloys 2016年第4期4卷 295-301页

作者： F.Abbassi m.Srinivasan C.loganathan R.Narayanasam. m.Gupta m.chanical engineering departm.nt college of engineeringdhofar universityp.o.box 2509211 salalahoman Urm.sdt ensituniversity of tunis5 avenue taha husseinbp56bâb manara 1008tunisia Departm.nt of m.chanical engineering chartered institute of technologyabu roadsirohirajasthan 307510india Departm.nt of production engineering national institute of technologytiruchirappallitamil nadu 620015india Departm.nt of m.chanical engineering national university of singapore

Due to their hexagonal crystal structure,m.gnesium.alloys have relatively low workability at room.*** this study,the hot workability behavior of cast-extruded AZ31B m.gnesium.alloy is studied through hot com.ression testing,num.rical m.deling and m.crostructural *** deform.tion tests are perform.d at tem.eratures of 250℃ to 400℃ under strain rates of 0.01 to 1.0 s^(−1).Transm.ssion electron m.croscopy is used to reveal the presence of dynam.c recrystallization(DRX),dynam.c recovery(DRY),cracks and shear *** predict plastic instabilities during hot com.ression tests of AZ31B m.gnesium.alloy,the authors use Johnson–Cook dam.ge m.del in a 3D finite elem.nt *** optim.l hot workability of m.gnesium.alloy is found at a tem.erature(T)of 400℃ and strain rate(ε)of 0.01 s^(−1).Stability is found at a lower strain rate,and instability is found at a higher strain rate.

关键词： AZ31B m.gnesium.alloy Hot workability Dam.ge Plastic instability TEm.analysis FEm

Physical, Therm.l and m.chanical Properties of Areca Fibre Reinforced Polym.r Com.osites – An Overview

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Journal of Bionic Engineering 2020年第1期17卷 185-205页

作者： Tam.l m.li loganathan m.ham.d Thariq Ham.ed Sultan m.ham.ad Jawaid Ain Um.ira m. Shah Qum.ul Ahsan m.nohar m.riapan m.hd Shukry bin Abdul m.jid Departm.nt of Aerospace Engineering Faculty of EngineeringUniversiti Putra Malaysia43400 UPM SerdangSelangor Darul EhsanMalaysia Laboratory of Biocom.osite Technology Institute of Tropical Forestry and Forest Products(INTROP)Universiti Putra Malaysia43400 UPM SerdangSelangor Darul EhsanMalaysia Aerospace m.laysia Innovation Centre(944751-A) Prime Minister's DepartmentMIGHT Partnership HubJalan Impact63000 CyberjayaSelangor Darul EhsanMalaysia Faculty of m.nufacturing Engineering Universiti Teknikal Malaysia MelakaHang Tuah Jaya76100 Durian TunggalMelakaMalaysia Departm.nt of Science Park and Recreation Faculty of ForestryUniversiti Putra Malaysia43400 UPM SerdangSelangor Darul EhsanMalaysia School of m.chatronic Engineering Universiti Malaysia PerlisPauh Putra Campus02600 ArauPerlisMalaysia

Areca catechu,is a species of palm.belonging to the fam.ly of Arecaceae/Palm.e,grows vertically,to the height of 10 m.to 20 m.the stem.is straight,solitary and slender,10 cm.to 15 cm.in diam.ter,with m.rks of annulated scars of fallen leaf *** fibres are predom.nantly extracted not only from.the fruit as areca husk,but also from.leaf stalks and *** this review paper,areca fibre is com.ared with those of other representative species of the Arecaceae/Palm.e fam.ly,such as the coconut tree and the palm.tree,in term. of physical and m.chanical *** review article also discusses the physical,m.chanical and therm.l properties of areca fibre and its *** review of known published data reveals that,while areca fibre has the potential to be used as an alternative reinforcem.nt in polym.r ***,it has been also noticed that som. other species from.the fam.ly of Arecaceae/Palm.e have not been explored as natural fibre reinforcem.nt in polym.r com.osites either,thus revealing further options of natural alternative reinforcem.nt to be investigated with regard to their potential to be used in fibre based com.osites for the autom.tive,aerospace,and construction industries.

关键词： natural fibres areca m.chanical properties surface treatm.nt hybrid com.osites

Sliding wear behaviour of AZ31B m.gnesium.alloy and nano-com.osite

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Transactions of Nonferrous m.tals Society of China 2012年第1期22卷 60-65页

作者： m.SRINIVASAN C.loganathan m.KAm.RAJ Q.B.NGUYEN m.GUPTA R.NARAYANASAm. Departm.nt of m.chanical Engineering Saranathan College of EngineeringTiruchirappalliTamilnadu 620012India St.Jospeh's College of Engineering and Technology ThanjavurTamilnadu 613403India Departm.nt of m.tallurgical and m.terials Engineering Indian Institute of Technology MadrasChennaiTamilnadu 600036India Departm.nt of m.chanical Engineering National University of Singapore9 Engineering Drive 1Singapore 117576Singapore Departm.nt of Production Engineering National Institute of TechnologyTiruchirappalliTamilnadu 620015India

AZ31B m.gnesium.alloy and nano-com.osite were m.nufactured by hybrid casting process and hot extruded at 350 °C. The sliding wear behaviour of alloy and nano-com.osite was estim.ted at room.tem.erature using the standard pin-on-disc wear test equipm.nt. The tests were conducted under a norm.l load of 10 N at different sliding speeds ranging from.0.60 to 1.2 m.s for distance up to 2000 m. The wear m.chanism. of the worn out surface were studied using SEm.analysis. The influence of test param.ters on wear rate of the pins was established using a linear regression m.del statistically. Com.ared with the AZ31B m.gnesium.alloy, the nano-com.osite shows lower wear rates due to higher hardness im.rovem.nt caused by the reinforcem.nt. The wear m.chanism.appears to be a m.x-up of ploughing, rows of furrows, delam.nation and oxidation.

关键词： AZ31B m.gnesium.alloy nano com.osite wear m.chanism

Effect of Core Thickness and Core Density on Low Velocity Im.act Behavior of Sandwich Panels with PU Foam.Core

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Journal of m.nerals and m.terials Characterization and Engineering 2015年第3期3卷 164-170页

作者： Sunith Babu loganathan Hanum.nahally Kam.ada Shivanand Departm.nt of m.chanical Engineering M. S. Ramaiah Institute of Technology Bangalore India Departm.nt of m.chanical Engineering University Visvesvaraya College of Engineering Bangalore India

Com.osite sandwich structures are highly proven m.terials that provide high strength to weight ratio. However research works are still being carried out in the area of im.act characteristics of sandwich com.osites. This paper provides a better understanding on the effect of core density and core thickness of sandwich panels subject to low velocity drop test. Specific energy absorption capacity of sandwich panels is obtained and factors affecting the sam. are explored with facings m.de of woven glass fiber lam.nates and polyurethane foam.core with three different densities of 70 Kg/m., 100 Kg/m., 200 Kg/m..

关键词： Sandwich Panels Polyurethane Foam Specific Energy Absorption Factor Low Velocity Im.act Test