Mathiselvan Gopal | Anna University (original) (raw)

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Papers by Mathiselvan Gopal

The intent of the paper is to design and improve a low cost three way non noble based catalytic c... more The intent of the paper is to design and improve a low cost three way non noble based catalytic convertor using titanium oxide (TiO2) and Co oxide (CO3O4) as oxidization and reduction catalysts in preference to Pt (Pt), palladium (Pd) and rhodium (Rh) that were used as catalyst materials since 1980 to reduce exhaust emission (NO, HC, CO) from exhaust system of automobiles.

IOP Publishing, 2017

The Bonded joints will be having one of the important issues in the composite technology is the r... more The Bonded joints will be having one of the important issues in the composite
technology is the repairing of aging in aircraft applications. In these applications and also for
joining various composite material parts together, the composite materials fastened together
either using adhesives or mechanical fasteners. In this paper, we have carried out design, static
analysis of 3-D models and fabrication of the composite joints (bonded, riveted and hybrid).
The 3-D model of the composite structure will be fabricated by using the materials such as
epoxy resin, glass fibre material and aluminium rivet for preparing the joints. The static
analysis was carried out with different joint by using ANSYS software. After fabrication,
parametric study was also conducted to compare the performance of the hybrid joint with
varying adherent width, adhesive thickness and overlap length. Different joint and its materials
tensile test result have compared.

IOP Publishing, 2017

The major toxins emitted from SI engine are carbon monoxide (CO) and unburnt hydrocarbons (UHC). ... more The major toxins emitted from SI engine are carbon monoxide (CO) and
unburnt hydrocarbons (UHC). These are harmful and create health problems to human
beings, and hence control of these pollutants calls for instant attention. It has been
recognized from the literature review that copper coating inside the cylinder head and
over the piston crown will reduce the emission and increase the overall performance.
Hence, in this Project work piston crown and engine head are coated using copper and
experiment are conducted. A Kirloskar AV1 engine is used for conducting experiment.
The copper coated piston crown and engine head is used to reduce the emission (HC, CO,
O2, and CO2). The performance and characteristics of the copper coated engine has been
studied.

IOP Publishing, 2017

Flow patterns are essential to ensure that the engine can produce high performance with the prese... more Flow patterns are essential to ensure that the engine can produce high performance with
the presence of swirl and tumble effect inside the engine cylinder. This paper provides the
simulation of air is simulated in the software to predict the flow pattern. The flow pattern is
simulated by using the steady state pressure based solver. The domain used for the simulations
predicated on the particular engine parameters. Mistreatment the CFD problem solver ANSYS
FLUENT, the CFD simulation is earned for four totally different geometries of the valve. The
geometries consist of Horizontal, Vertical, curve and arc springs. In this simulation, only the intake
strokes are simulated. From this results show that the velocity of the air flow is high during the
sweeps the intake stroke takes place. This situation is produced more swirls and tumble effect
during the compression, hence enhancing the combustion rate in a whole region of the clearance
volume of the engine cylinder. This will initiate to the production of tumble and swirl in the engine
cylinder.

IOP Publishing, 2017

safety in automotive engineering has been considered as a number one priority in development of n... more safety in automotive engineering has been considered as a number one priority in
development of new vehicle. A brake system is one of the most critical systems in the vehicle,
without which the vehicle will put a passenger in an unsafe position. Temperature distribution
on disc rotor brake and the performance brake of disc rotor is influenced by the air flow around
the disc rotor. In this paper, the effect of air flow over the disc rotor is analyzed using the CFD
software. The air flow over the disc rotor is increased by using a duct to supply more air flow
over the disc rotor. The duct is designed to supply more air to the rotor surface and it can be
placed in front of the vehicle for better performance. Increasing the air flow around the rotor
will maximize the heat convection from the rotor surface. The rotor life and the performance
can be improved.

Research India, 2015

In this work pyrolysis of biomass waste namely kiker seeds, vellikathan seeds and coconut shell w... more In this work pyrolysis of biomass waste namely kiker seeds, vellikathan seeds
and coconut shell were identified and experimented for pyrolysis. The main
work is to study the use of pyro oil as fuel in diesel engine experimentally. In
the first phase of this project extraction of pyro oil was done from the biomass
through pyrolysis. The physical properties of these pyro oils were studied by
conducting experiments in the fuels laboratory. The various properties such as
viscosity, flash point and density were tabulated. The physical properties such
as viscosity of coconut shell, kiker seeds, and vellikathan were found as 42,
39, 37 centistokes respectively. The flash points of these oils were found as
87°C, 107°C and 102°C. The densities of these oils were found as 1098 kg/m3,
1224kg/m3 and 1232kg/m3 respectively.

also de-lamination gets reduced due to stitching.

Taylor & Francis, 2019

An experimental study is conducted to evaluate the use of rubber seed oil with diesel at a propor... more An experimental study is conducted to evaluate the use of rubber seed oil with diesel at a proportion of 20%
by volume (RSO20) in a constant speed (1500 rpm) direct injected four-stroke air-cooled single-cylinder
compression ignition engine at different injection timings (24°, 27°, 30°, 33° bTDC (before top dead centre)).
A series of tests were conducted at various engine load conditions at the rated power of 5.9 kW. The
injection pressure was maintained at 200 bar. As a result of investigations, at the full load condition, the
brake thermal efficiency of RSO20 at 30° bTDC is high compared with other injection timings and brake
energy fuel consumption is increased when advancing injection timing. There is a significant reduction
in unburned hydrocarbon emission and carbon monoxide emission, and the oxides of nitrogen emission
(NOx) is increased when advancing the injection timing.

Taylor & Francis, 2018

This aim of the current study is to evaluate the performance and emission characteristics of pump... more This aim of the current study is to evaluate the performance and emission characteristics of pumpkin seed oil with diesel at different blended ratios (B10-CR15, B20-CR15, B10-CR18 and B20-CR18) in a constant speed (1500 rpm) engine. The tests were conducted at various loads of the engine and with specific compression ratios of 15 and 18. The performance and emissions were compared with the different blend ratios and compression ratios. As a result of which the higher compression ratios shows better performance and emission than the lower compression ratio; among them B20-CR18 shows better results such that CO 2 , HC and CO emissions were reduced and there is a slight increase in NO X value compared to diesel and other blend ratios and also there is an increased brake thermal efficiency for the blend B20-CR18. This shows that the optimum blend is chosen from the results is identified as B20-CR18, which has better performance and emission than other blends and compression ratios. ARTICLE HISTORY

Research India Publication, 2015

In this work pyrolysis of biomass waste namely kiker seeds, vellikathan seeds and coconut shell w... more In this work pyrolysis of biomass waste namely kiker seeds, vellikathan seeds and coconut shell were identified and experimented for pyrolysis. The main work is to study the use of pyro oil as fuel in diesel engine experimentally. In the first phase of this project extraction of pyro oil was done from the biomass through pyrolysis. The physical properties of these pyro oils were studied by conducting experiments in the fuels laboratory. The various properties such as viscosity, flash point and density were tabulated. The physical properties such as viscosity of coconut shell, kiker seeds, and vellikathan were found as 42, 39, 37 centistokes respectively. The flash points of these oils were found as 87°C, 107°C and 102°C. The densities of these oils were found as 1098 kg/m 3 , 1224kg/m 3 and 1232kg/m 3 respectively. It may be noted that pyro oil yield increased with the increase in particle size up to 450µm, further increase in particle size decreased the pyro oil yield.The effect of temperature on bio oil yield, the results showed that the increase in temperature of the pyrolysis process above 550°C should be reducing the amount of yielding quality of the fuel.

IOP Publishing, 2017

Research India, 2015

also de-lamination gets reduced due to stitching.

Taylor & Francis, 2019

Taylor & Francis, 2018

Research India Publication, 2015

In this work pyrolysis of biomass waste namely kiker seeds, vellikathan seeds and coconut shell w... more In this work pyrolysis of biomass waste namely kiker seeds, vellikathan seeds and coconut shell were identified and experimented for pyrolysis. The main work is to study the use of pyro oil as fuel in diesel engine experimentally. In the first phase of this project extraction of pyro oil was done from the biomass through pyrolysis. The physical properties of these pyro oils were studied by conducting experiments in the fuels laboratory. The various properties such as viscosity, flash point and density were tabulated. The physical properties such as viscosity of coconut shell, kiker seeds, and vellikathan were found as 42, 39, 37 centistokes respectively. The flash points of these oils were found as 87°C, 107°C and 102°C. The densities of these oils were found as 1098 kg/m 3 , 1224kg/m 3 and 1232kg/m 3 respectively. It may be noted that pyro oil yield increased with the increase in particle size up to 450µm, further increase in particle size decreased the pyro oil yield.The effect of temperature on bio oil yield, the results showed that the increase in temperature of the pyrolysis process above 550°C should be reducing the amount of yielding quality of the fuel.