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- P. Robin Roy
- M. Subramanian
- Rajasekaran Mohan
- S. Padmanabhan
- S. Seralathan
- M. Rajasekaran
- M. Dinesh Kumar
- Godwin John
- V. Pradhap
- G. John
- V. Udhayakumar
- P. Karthick
- A. Abraham Eben Andrews
- A. Arunraja
- T. Micha Premkumar
- Penchala Tharun
- R. Prakash
- V. Paulson
- T. Micha Prem kumar
- J. Fernandez
- S. A. Harikrishnan
- M. Senbagan
- R. Sarathkumar
- D. Dominic Xavier
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Hariram, V.
- Accelerating the Product Development of a Commercial Vehicle Radiator using Finite Element Analysis
Abstract Views :401 |
PDF Views:139
Authors
Affiliations
1 Dept. of Automobile Engg., Hindustan Institute of Tech. and Sci., Padur, Chennai, IN
2 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Padur, Chennai, IN
3 Dept. of Automobile Engg., BS Abdur Rahman University, Vandalur, Chennai, IN
1 Dept. of Automobile Engg., Hindustan Institute of Tech. and Sci., Padur, Chennai, IN
2 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Padur, Chennai, IN
3 Dept. of Automobile Engg., BS Abdur Rahman University, Vandalur, Chennai, IN
Source
International Journal of Vehicle Structures and Systems, Vol 9, No 1 (2017), Pagination:Abstract
Emissions such as Nox and CO resulting from the combustion of the diesel engines in the commercial vehicles leads to environmental degradation and ozone layer depletion. Alarming environment trend forces the government institutions to develop and enforce strict emission laws for the next generation transportation vehicles. Stricter emission laws mean higher operating pressure, temperature, reduced weight, tight packaging space, engine downsizing etc. Engine cooling systems are the critical components in the managing the engine cooling requirement of the commercial vehicle. Generally engine cooling system includes radiator, charge air cooler, engine oil cooler etc. Product development of thermal management system using the traditional design process takes more time, resource and money. To solve the complex design problem, numerical technique such as finite element analysis is performed upfront in the product development of the radiator to evaluate the structure behaviour under mechanical loading. In this paper, internal static pressure analysis of a radiator is presented to showcase the benefits of using the finite element technique earlier in the product design phase. Pressure cycle life at a critical joint of the radiator is calculated using strain-life approach. Finite element analysis aids in visualization of the hot spots in the design, comparing different design options with less turnaround time. Experimental testing and prototypes can be reduced. Risk of a product being failed is greatly minimized by performing the numerical simulation.Keywords
Engine Cooling System, Radiator, Finite Element Analysis, Linear Static Analysis, Life Estimation.References
- S. Bennett. 2008. Medium & Heavy Duty Truck Engines, Fuel & Computerized Management Systems, 4th Edition Cengage Learning.
- P.K. Beatenbough. 1992. Radiator design and material recommendation based on failure mode analysis, SAE Tech. Paper, 920178. https://doi.org/10.4271/920178.
- R.D. Cook, D.S. Malkus, M.E. Plesha and R.J. Witt. 1992. Concepts and Application of Finite Element Analysis, 3rd Edition, John Wiley & Sons.
- E.P. da Silva, F.M. da Silva and R.R. Magalhaes. 2014 Application of finite elements method for structural analysis in a coffee harvester, Engineering, 6(3), 138147. https://doi.org/10.4236/eng.2014.63017.
- S. Dheeraj and R. Sabarish. 2014. Analysis of truck chassis frame using FEM, Middle East J Scientific Research, 20(5), 656-661.
- C. Li, S. Fan and M. Shi. 2010. Preparation of CAD model for finite element analysis, Proc. Int. Conf. on Computer, Mechatronics, Control and Electronic Engineering, Changchun, Jilin, China.
- J. Eitel, G.T. Woerner and S. Horoho. 1999. Aluminium radiators for heavy duty trucks, SAE Tech. Paper, 199901-3721.
- G.S.T. Millard. 1977. Analysis of durability characteristics of heavy duty radiators, SAE Tech. Paper, 770024.
- W.S. Miller, L. Zhuang, J. Bottema, A.J. Wittebrood, P. De Smet, A. Haszler and A. Vieregge. 2000. Recent development in aluminium alloys for the automotive industry, Materials Science and Engineering: A, 280(1). https://doi.org/10.1016/S0921-5093(99)00653-X.
- Altair HyperMesh, User Guide, Version 13, Altair Engineering Inc.
- Altair Optistruct, User Guide, Version 13, Altair Engineering Inc.
- R.H. MacNeal and R.L. Harder. 1985. A Proposed standard set of problems to test finite element accuracy, Finite Elements in Analysis and Design, 1, 3-20. https:// doi.org/10.1016/0168-874X(85)90003-4.
- A. Khosrovaneh, R. Pattu and W. Schnaidt. 2004. Discussion of fatigue analysis techniques in automotive applications, SAE Technical Paper, 2004-01-0626.
- H.S. Reemsnyder. 1979. Constant amplitude fatigue assessment, SAE Technical Paper, 820688.
- Improvements in Vehicle Stiffness by Adding Internal Reinforcements
Abstract Views :286 |
PDF Views:142
Authors
Affiliations
1 Dept. of Automobile Engg., Hindustan Institute of Tech. and Science, Chennai, IN
2 Dept. of Mech. Engg., Hindustan Institute of Tech. and Science, Chennai, IN
3 Dept. of Automobile Engg., BS Abdur Rahman University, Vandalur, IN
4 School of Mech. Engg., Sathyabama University, Chennai, IN
1 Dept. of Automobile Engg., Hindustan Institute of Tech. and Science, Chennai, IN
2 Dept. of Mech. Engg., Hindustan Institute of Tech. and Science, Chennai, IN
3 Dept. of Automobile Engg., BS Abdur Rahman University, Vandalur, IN
4 School of Mech. Engg., Sathyabama University, Chennai, IN
Source
International Journal of Vehicle Structures and Systems, Vol 9, No 2 (2017), Pagination: 72-76Abstract
The world’s climatic conditions rises and there is a demand for environment friendly vehicle designs. The automobile industry strives hard to ensure low carbon emissions. This refers to the mass reduction and fuel consumption. This paper investigates to achieve the overall Body-in-white (BIW) bending and torsion stiffness performance using Topology optimization and light weight internal reinforcements. The potential opportunity of achieving light weight structure using the efficient way of defining the internal reinforcements has been investigated. BIW at the conceptual design phase has been considered for the research. Topology optimization was performed considering the roof rail and the rocker as the design space with an approach of achieving the improved torsion and bending stiffness performance. The optimized bulk head design locations have improved the BIW stiffness performance with minimal mass increase in the BIW. This method can be widely used at various stages of the BIW design to identify the weaker sections and then design the load path using internal reinforcements effectively. The optimized internal reinforcements has achieved higher torsion and bending performance with minimal mass addition.Keywords
Design of Experiments, Optimization, Body-In-White Stiffness, Multi Objective, Bending, Torsion, Bulk Heads.References
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- G. Peterson. 2013. Cost-effectiveness of a lightweight BIW design for 2020-2025: An assessment of a midsize crossover utility vehicle body structure, SAE Tech. Paper 2013-01-0667.
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- B. Liu. 2014. A research on the body-in white (BIW) weight reduction at the conceptual design phase, SAE Tech. Paper 2014-01-0743.
- B. Matteo and D. Poerre. 2012. Topology optimization for minimum weight with compliance and stress constraints, Structural Multi Disciplinary Optimization.46(3).
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- M. Rajasekaran, V. Hariram and M. Subramanian. 2016. Multi-objective optimization of material layout for body-in-white using design of experiments. Int. J. Vehicle Structures & Systems, 8(1), 17-22. http://dx.doi.org/10.4273/ijvss.8.1.04.
- D. Baskin. 2008. A case study in structural optimization of an automotive body-in-white design, SAE Tech. Paper 2008-01-0880.
- J. Christensen. 2011. Lightweight hybrid electrical vehicle structural topology optimisation investigation focusing on crashworthiness, Int. J. Vehicle Structures & Systems, 3(2), 113-121. http://dx.doi.org/10.4273/ijvss.3.2.06.
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- D.M. Baskin, D.B. Reed, T.N. Seel, M.N. Hunt, M.Oenkal, Z. Takacs and A.B. Vollmer. 2008. A case study in structural optimization of an automotive body-in-white design, SAE Tech. Paper 2008-01-0880.
- A.V. Londhe. 2010. A systematic approach for weight reduction of BIW panels through optimization, SAE Tech. Paper 2010-01-0389.
- J. Conklin. 2015. BIW design and CAE, SAE Tech. Paper 2015-01-0408.
- J. Deleener. 2010. Extraction of static car body stiffness from dynamic measurements, SAE Tech. Paper 2010-01-0228.
- R.G. Boeman. 2002. Development of a cost competitive, composite intensive, body-in-white. SAE Tech. Paper 2001-01-1905.
- J.S. Park. 1994. Optimal latin-hypercube designs for experiments, J. Statistical Planning and Inference, 143, 307-314. https://doi.org/10.1016/0378-3758(94)90115-5.
- P. Calvo. 2013. Design optimization of hybrid body-in-white. SAE Tech. Paper 2013-01-0970.
- M. Rajasekaran, V. Hariram and M. Subramanian. 2016. A new minimal part breakup body-in-white design approach and optimized material map strength assessment, J. Teknologi, 78(7), 17-22. https://doi.org/10.11113/jt.v78.5597.
- M. Rajasekaran, V. Hariram and M. Subramanian. 2016. New methodology for light weight solutions to improve BIW structural performance using bulk head optimization, J. Mech. Science Tech., 30(8), 3533-3537.https://doi.org/10.1007/s12206-016-0713-5.
- M. Rajasekaran, V. Hariram and M. Subramanian. 2016.New mass optimization technique to achieve low mass BIW designs using optimal material layout methodology on frontal vehicle crash, J. Mech. Science and Technology, 30(12), 3533-3537. https://doi.org/10.1007/s12206-016-1130-5
- Effect of Metallic Nano-Additives on Combustion Performance and Emissions of DI CI Engine Fuelled with Palmkernel Methyl Ester
Abstract Views :247 |
PDF Views:130
Authors
Affiliations
1 Dept. of Mech. Engg., Hindustan Institute of Tech. and Science, Chennai, IN
2 Dept. of Automobile Engg., Hindustan Institute of Tech. and Science, Chennai, IN
3 School of Mech. Engg., Sathyabama University, Chennai, IN
1 Dept. of Mech. Engg., Hindustan Institute of Tech. and Science, Chennai, IN
2 Dept. of Automobile Engg., Hindustan Institute of Tech. and Science, Chennai, IN
3 School of Mech. Engg., Sathyabama University, Chennai, IN
Source
International Journal of Vehicle Structures and Systems, Vol 9, No 2 (2017), Pagination: 103-109Abstract
Compression ignition engines are widely used due to their lower energy consumption and enhanced combustion efficiency. In this experimental investigation, the feasibility of fuelling a single cylinder 4 stroke direct injection compression ignition engine with methyl esters of palmkernel (PME) oil along with various fractions of aluminium oxide nano particles (ANOP) were analysed. Two stage transesterification process was adopted to prepare PME. PME20 blend was formulated and fused using high speed homogenizer with varying proportions of AONP as 25 ppm, 50 ppm and 100 ppm in the presence of hexadecyl trimethyl ammonium bromide as surfactant. The experimental investigations were conducted at rated power of 3.5kW at 1500rpm. It was noticed that supplementation of AONP affected the ignition delay significantly favouring enhanced combustion efficiency. The rate of heat release and in-cylinder pressure was substantially increased with notable reduction in ignition delay. Addition of AONP showed an increase in brake thermal efficiency and exhaust gas temperature with diminution in brake specific energy consumption. The unburned hydrocarbons, carbon monoxide and smoke density decreased sharply with an upsurge in NOx. Increase in AONP concentration up-to 100 ppm with PME20 was found to give better combustion and performance characteristics.Keywords
Palmkernel Methyl Ester, Transesterification, Nano Particle, Combustion Performance, Ignition Delay.References
- S. Gumus, H. Ozcan, M. Ozbey and B. Topaloglu. 2016. Aluminum oxide and copper oxide nanodiesel fuel properties and usage in a compression ignition engine, Fuel, 163, 80-87. https://doi.org/10.1016/j.fuel.2015.09.048.
- Y. Gan and L. Qiao. 2011. Combustion characteristics of fuel droplets with addition of nano and micron-sized aluminium particles, Combustion and Flame, 158, 354-368. https://doi.org/10.1016/j.combustflame.2010.09.005.
- C.S. Aalam and C.G. Saravanan. 2015. Effects of nano metal oxide blended Mahua biodiesel on CRDI diesel engine, Ain Shams Engg. J.. https://doi.org/10.1016/j.asej.2015.09.013.
- C.S. Aalam, C.G. Saravanan and M. Kannan. 2015.Experimental investigations on a CRDI system assisted diesel engine fuelled with aluminium oxide nanoparticles blended biodiesel, Alexandria Engg. J., 54, 351-358. https://doi.org/10.1016/j.aej.2015.04.009.
- Anbarasu, A. Karthikeyan and M. Balaji. 2016. Performance and emission characteristics of diesel engine using alumina nanoparticle blended biodiesel emulsion fuel, ASME Trans. J. Energy Resources Tech., 138, 022203-6.
- R. Bharathiraja, N. Praveenkumar, K.S.Amirthagadeswaran, S. Periyasamy and K. Rameshbabu.
- Study on characteristics of CI engine using nano additive blended diesel fuel, Int. J. Applied Engg.
- Research, 10(67), 328-334.
- J.S. Basha and R.B. Anand. 2013. The influence of nano additive blended biodiesel fuels on the working characteristics of a diesel engine, J. Braz. Soc. Mech. Sci.Engg., 35, 257-264. https://doi.org/10.1007/s40430-013-0023-0.
- J.S. Basha and R.B. Anand. 2014. Performance, emission and combustion characteristics of a diesel engine using carbon nanotubes blended jatropha methyl ester emulsions, Alexandria Engg. J., 53, 259-273.
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- A. Selvaganapthy, A Sundar, B. Kumaragurubaran and P.Gopal. 2013. An experimental investigation to study the effects of various nano particles with diesel on DI diesel engine, ARPN J. Sci. and Tech., 3 (1), 112-115.
- V.A.M. Selvan, R.B. Anand and M. Udayakumar. 2008. effects of cerium oxide nanoparticle addition in diesel and diesel-biodiesel-ethanol blends on the performance and emission characteristics of a CI engine, ARPN J.Engg. and Applied Sci., 4(7), 1-6.
- A.A.T. Bafghi, H. Bakhoda and F.K. Chegeni. Effects of cerium oxide nanoparticle addition in diesel and dieselbiodiesel blends on the performance characteristics of a CI engine, Int. J. Mech., Aerospace, Industrial, Mechatronic and Manufacturing Engg., 9(8), 1415-1420.
- S. Tajudeen and R. Velraj. 2014. Nanoadditives: enhancement of combustion and performance characteristics of a CI diesel engine, Int. J. Applied Environmental Sci., 9(4), 1727-1741.
- J.S. Basha and R.B. Anand. 2011. Role of nanoadditive blended biodiesel emulsion fuel on the working characteristics of a diesel engine, J. Renewable and Sustainable Energy, 3, 1-6. https://doi.org/10.1063/1.3575169.
- V. Hariram, S. Seralathan, M. Dineshkumar, S.Vasanthaseelan and M. Sabareesh. 2016. Analyzing the fatty acid methyl esters profile of palmkernel biodiesel using GC/MS, NMR and FTIR techniques, 9(4), 3122-3128.
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- Effect of DEE Oxygenate on Diesel in Algal Biodiesel-Diesel Blends on the Combustion Phenomenon of DI Compression Ignition Engines
Abstract Views :214 |
PDF Views:100
Authors
Affiliations
1 Dept. of Mech. Engg., Hindustan University, Chennai, IN
2 Dept. of Automobile Engg., Hindustan University, Chennai, IN
1 Dept. of Mech. Engg., Hindustan University, Chennai, IN
2 Dept. of Automobile Engg., Hindustan University, Chennai, IN
Source
International Journal of Vehicle Structures and Systems, Vol 10, No 1 (2018), Pagination: 46-53Abstract
Biodiesel derived from Stoechospermum marginatum is analysed in a CI engine to understand its feasibility to be used as fuel. In this study, Soxhlet extraction method was applied to extract the bio oil from the brown sea weed (S. Marginatum) with n-hexane as solvent. Considering the low FFA content through titration, base single stage transesterification process with methanol and NaOH at molar ratio of 8:1 is used and it yielded 84.5% of bio diesel. The test fuel is prepared with processed algae bio diesel and Di-Ethyl Ether in different blend ratios namely D80AB20, D70AB20DEE10 and D60AB20DEE20. The variation in combustion aspects are evaluated with constant concentration of algal bio diesel at 20% with variation in diesel and oxygenate concentrations. Consequential variation is observed in the combustion behaviour of CI engine on fuelling with test fuels. Comparable in-cylinder pressure is observed in bio-diesel blends and oxygenated blends. D70AB20DEEE10 exhibits superior heat release rate and pressure rise at all loads. The peak in-cylinder pressure and variation in ignition delay are also analysed in this study.Keywords
Compression Ignition Engines, Stoechospermum Marginatum, Algae Biodiesel, Oxygenate, Combustion.- Injection Timing Variation and its Influence on the Performance and Combustion Characteristics on a Direct Injection CI Engine
Abstract Views :218 |
PDF Views:125
Authors
Affiliations
1 Dept. of Mech. Engg, Hindustan University, Chennai, IN
2 Dept. of Automobile Engg., Hindustan University, Chennai, IN
1 Dept. of Mech. Engg, Hindustan University, Chennai, IN
2 Dept. of Automobile Engg., Hindustan University, Chennai, IN
Source
International Journal of Vehicle Structures and Systems, Vol 10, No 1 (2018), Pagination: 54-59Abstract
The present experimental investigation aims at improving the combustion and performance parameters by varying the injection timing. A 3.5 kW single cylinder stationary CI engine equipped with eddy current dynamometer is used in this investigation. The static injection timing is varied using spill method by an advancement and retirement of 2 CAD with respect to standard injection timing of 23 °BTDC. On comparison with the standard injection timing, the brake thermal efficiency, cylinder pressure, rate of heat release, mean gas temperature and rate of pressure rise are found to increase along with a significant decrease in brake specific fuel consumption for an advanced injection timing of 21 °BTDC. Negative improvement is observed with respect to retarded injection timing of 25 °BTDC. Optimum parameters for enhanced engine performance is found to be 21°BTDC injection timing with a 200 bar injection pressure at rated speed.Keywords
Injection Timing Variation, In-Cylinder Pressure, Net Heat Release, Mean Gas Temperature.- Effect of Carbon Nanotubes on Oxygenated Jojoba Biodiesel-Diesel Blends in Direct Injection CI Engines
Abstract Views :213 |
PDF Views:104
Authors
V. Hariram
1,
V. Udhayakumar
1,
P. Karthick
1,
A. Abraham Eben Andrews
1,
A. Arunraja
1,
S. Seralathan
1,
T. Micha Premkumar
1
Affiliations
1 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, IN
1 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, IN
Source
International Journal of Vehicle Structures and Systems, Vol 10, No 6 (2018), Pagination: 423-432Abstract
Scarcity and inflated cost of petroleum reserves along with environmental pollution concerns urged the researchers to identify a better alternative source of eco-friendly bio-energy. In this study, oxygenated biodiesel derived from Jojoba oil was used in a compression ignition engine to analyse the engine characteristics in the presence of multi-walled carbon Nanotubes (MWCNT) at 50 ppm, 100 ppm and 150 ppm concentrations. Taguchi’s approach based experimentation identified the stability of modified fuel blends ratios of n-butanol, biodiesel and MWCNT. The Jojoba biodiesel was characterized using FTIR and GC MS techniques to understand the presence of fatty acid methyl esters in the biodiesel. Higher brake thermal efficiency and significant reduction in specific fuel consumption were observed in fuel blend with MWCNT. D70JJBD20O10CNT100 showed higher in-cylinder pressure and heat release rate due to micro-explosion of carbon nanotubes at full load condition. The ignition delay was also significantly affected with the addition of MWCNT. The exhaust emission like un-burned hydrocarbon, oxides of carbon, oxides of nitrogen and smoke exhibited noticeable variations with the modified fuel blends.Keywords
Biodiesel, Multi-Walled Carbon Nano Tubes, N-Butanol, Performance, Combustion, Emission.References
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- Barabas and Touorut. 2010. Performance and emission characteristics of CI engine fueled with diesel-biodiesel, bio-ethanol blends, Fuel, 89, 3827-32. https://doi.org/10.1016/j.fuel.2010.07.011
- M.Y.E. Selim. 2009. Reducing the viscosity of jojoba methyl ester diesel fuel and effects on diesel engine performance and roughness, Energy Conversion and Management, 50, 1781-1788. https://doi.org/10.1016/j.enconman.2009.03.012
- N.R. Banapurmath and R. Sankara. 2014. Experimental investigation on direct injection diesel engine fueled with graphene, silver and MWCNT- biodiesel blended fuels, Int. J. Automot. Eng. Tech., 129-38.
- H. Venkatesan, S. Sivamani, S. Sampath, V. Gopi and M.D. Kumar. 2017. A comprehensive review on the effect of nano metallic additives on fuel properties, engine performance and emission characteristics, Int. J. of Renewable Energy Research, 7(2), 825-843.
- Influence of Carbon Nano-tube on Combustion, Performance and Emission Parameters of DI CI Engine Fuelled with Blends of Lemongrass Biodiesel
Abstract Views :203 |
PDF Views:102
Authors
V. Hariram
1,
Penchala Tharun
1,
S. Seralathan
1,
A. Abraham Eben Andrews
1,
P. Karthick
1,
A. Arunraja
1,
T. Micha Premkumar
1
Affiliations
1 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, IN
1 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, IN
Source
International Journal of Vehicle Structures and Systems, Vol 10, No 6 (2018), Pagination: 433-442Abstract
In the present investigation, bio-oil is extracted from lemongrass through steam distillation process, Single stage trans esterification using methanol and potassium hydroxide at molar ration of 1:8 yielded lemongrass biodiesel. The biodiesel was characterized using Gas chromatography Mass spectrometry and Fourier transforms infrared spectrometry analysis and found to have Behenic and Stearic acid in prominent proportions. The cetane number and calorific value was enhanced by ultrasonicating carbon Nano-tubes at various proportions. Kirloskar TV1 compression ignition engine coupled with eddy current dynamometer was employed to analyse the combustion, performance and emission characteristics. Addition of carbon Nano-tubes significantly affected the ignition delay and combustion duration. D80LGB20CNT100 fuel blend exhibited higher in-cylinder pressure up to 65.144 bars along with enhanced rate of heat release upto 73.953 kJ/kg at full load condition. Higher brake thermal efficiency with notable reduction in unburned hydrocarbon and smoke was seen with elevated levels of carbon-monoxide and oxides of nitrogen.Keywords
Lemongrass Biodiesel, Carbon Nano-Tube, Transesterification, Combustion, Performance, Emission.References
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- V. Hariram, S. Seralathan, S. Sampath, V. Gopi and M. Kumar. 2017. A comprehensive review on the effect of Nano metallic additives on fuel properties, engine performance and emission characteristics, Int. J. Renewable Energy Research, 7(2), 825-843.
- Production of Biodiesel from Eucalyptus Tereticornis and its Effect on Combustion, Performance and Emission Characteristics of CI Engines
Abstract Views :233 |
PDF Views:102
Authors
Affiliations
1 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, Tamil Nadu, IN
2 Dept. of Aero. Engg., Hindustan Institute of Tech. and Sci., Chennai, Tamil Nadu, IN
1 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, Tamil Nadu, IN
2 Dept. of Aero. Engg., Hindustan Institute of Tech. and Sci., Chennai, Tamil Nadu, IN
Source
International Journal of Vehicle Structures and Systems, Vol 10, No 6 (2018), Pagination: 443-452Abstract
In the present investigation, bio-oil from Eucalyptus teriticornisis is extracted through steam distillation process. The effect of esterified bio-oil is analysed in a single cylinder compression ignition engine. For this purpose, Eucalyptus biodiesel is prepared by transesterification process with methanol and NaOH as catalyst under variable parameters. The performance, combustion and emission features of a four stroke diesel engine were investigated using methyl ester of eucalyptus biodiesel (EBD100) and its blend with 50% diesel (D50-EBD50). The test outcome reveals that there is marginal increase in brake thermal efficiency and slight drop in brake specific fuel consumption for biodiesel fuel when compared to that of mineral diesel fuel. The use of this biodiesel resulted in decreased emission of Hydrocarbons and Carbon monoxide and higher emission of Nitrogen oxide and Carbon dioxide at part loads. EBD100 exhibits similar heat release rate and lower in-cylinder pressure compared to that of the diesel fuel at same loads.Keywords
Biodiesel, Transesterification, Combustion, Eucalyptus Tereticornis, Emission.References
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- Biodiesel Production from Pongamia Pinnata and its Characterization using GC-MS, NMR and FT-IR Spectral Studies
Abstract Views :226 |
PDF Views:102
Authors
Affiliations
1 Dept. of Auto. Engg., Hindustan Institute of Tech. and Sci., Chennai, Tamil Nadu, IN
2 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, Tamil Nadu, IN
1 Dept. of Auto. Engg., Hindustan Institute of Tech. and Sci., Chennai, Tamil Nadu, IN
2 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, Tamil Nadu, IN
Source
International Journal of Vehicle Structures and Systems, Vol 10, No 6 (2018), Pagination: 453-457Abstract
Biodiesel synthesis from the pongamia oil seed and its characterization is elaborated in this paper. A double stage transesterification i.e. acid catalysed transesterification and base catalysed esterification are adopted to reduce the free fatty acids content and conversion of triglycerides into methyl esters. In this process, H2SO4, NaOH and methanol are used at the methanol/oil molar ratio of 7:1. By this process, 95% of pongamia biodiesel is obtained. The physiochemical properties like calorific value, Cetane number, density, kinematic viscosity, flash point, fire point etc. are analysed and it is found to be within the ASTM standards. GC-MS analysis indicated the existence of 14 prominent fatty acids with oleic acid as the major constituent. 13C and 1H NMR results supported the GC-MS data and it also confirmed the conversion efficiency of converting the vegetable oil into PBD as 87.23%. The shifting and appearance of major peaks in the FT-IR spectrum confirmed the formation of FAMEs from the triglycerides.Keywords
Biodiesel, Pongamia Pinnata, Transesterification, GC-MS, FT-IR, NMR.References
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- Improvement of Poisson’s Ratio using Carbon Nanotubes Reinforcement for Laminated Sandwich Plate
Abstract Views :463 |
PDF Views:160
Authors
Affiliations
1 Dept. of Aeronautical Engg., Hindustan Institute of Tech. and Sci., Chennai, IN
2 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, IN
1 Dept. of Aeronautical Engg., Hindustan Institute of Tech. and Sci., Chennai, IN
2 Dept. of Mech. Engg., Hindustan Institute of Tech. and Sci., Chennai, IN
Source
International Journal of Vehicle Structures and Systems, Vol 11, No 1 (2019), Pagination: 74-78Abstract
The focus of this study is to improve the material properties like Poisson's ratio and flexural strength of a sandwich plate by adding carbon nanotubes. A comparative analysis is carried out between sandwich plate with and without addition of carbon nanotubes. Nastran / Patran are the main tools used for this analysis. The experimental work focuses on the behaviour of the sandwich plate while applying tensile and compressive loads. The reduction of displacement in orthogonal sides under compressive stress and tensile stress are observed for carbon nanotubes enriched sandwich plate. This is due to increased face sheet relative difference of lateral strain with longitudinal strain. It is also observed that the mechanical properties of carbon nanotubes enriched sandwich plate are enhanced in comparison to sandwich plate without carbon nanotubes. It is found that, for feasible applications, the sandwich plate enhanced with carbon nanotubes, possess greater face sheet relative difference of lateral strain with longitudinal strain. It is concluded that the Poisson’s ratio for the sandwich panel enriched with carbon nanotubes is advantageous than sandwich panel without carbon nanotubes.Keywords
Carbon Nanotubes, Sandwich Plate, Poisson’s Ratio, Mechanical Properties.References
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