SP Venkatesan - Academia.edu (original) (raw)

Papers by SP Venkatesan

Research paper thumbnail of Experimental Study on Nanofluid Fuel and Its Effects on the Performance of CI Engine

This experimental investigation focuses on the significance and influence of cerium oxide in its ... more This experimental investigation focuses on the significance and influence of cerium oxide in its nanoparticle profile on the physicochemical properties and the performance of diesel blends when compared with pure diesel. Cerium oxide in its nanoparticle form, exhibits an unprecedented catalytic activity due to its oxygen buffering capability. Cerium oxide, when allowed to be used as an additive in a diesel engine, is known to exhibit depreciation of oxides of nitrogen and hydrocarbon emissions respectively. Dodecenyl Succinic Anhydride (DDSA) is the surfactant being used so that the cerium oxide-diesel blends remain stable. The cerium oxide is subjected to different procedures such as EDS, XRD, and SEM test for their characterization. The cerium oxide-diesel blends were successfully obtained with the means of an ultrasonic bath sonicator, in a two staged procedure. The influence of cerium oxide on the physicochemical properties of pure diesel has also been explored through comprehen...

Research paper thumbnail of Experimental Investigation and Comparing the Mechanical Properties of Glass Fiber-Reinforced Polymers with Carbon Nanotubes and Sawdust

Research paper thumbnail of Increasing the effectiveness of heat exchanger using Al2O3 nano particle mixed working fluid

Research paper thumbnail of The effect of expanded graphite on the performance of paraffin phase change materials used in thermal energy storage

Journal of Physics: Conference Series

Paraffin is the most commonly used phase change type of material for thermal energy storage but t... more Paraffin is the most commonly used phase change type of material for thermal energy storage but the main drawback is it has very low thermal conductivity. This study aims to enhance the thermal conductivity of the base PCM through the use of expanded graphite as supporting material. The expanded graphite at different percentage 3wt%, 6wt%, 9wt%, 12wt%, 15wt% is mixed with paraffin and five samples are prepared. Experimental results obtained on the samples clearly show that the thermal properties of samples are improved when compare to that of pure paraffin. It is found that both thermal conductivity and thermal diffusivity are increasing rapidly. Melting temperature is standard there is no change for all the compositions. Specific heat gradually started increasing during the initial time and then it started decreasing as the expanded graphite percentage increased. The latent heat value of this composition has decreased a lot when compared to pure paraffin.

Research paper thumbnail of Fabrication and analysis of motorbike helmet using PCM for temperature control

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

It is estimated that 40 – 50% of the total heat produced within the body is released through the ... more It is estimated that 40 – 50% of the total heat produced within the body is released through the head. This dissipated heat from our head gets trapped inside the helmet resulting in increased internal temperature along with the addition of external heat from the surrounding, making it uncomfortable for the user. This work discloses on the designing and fabrication of a cooling system implemented in a motorbike helmet with the use of PCM(Phase Change Material) and mechanically constructed Fins fixed onto the shell surface, to prolong the thermal comfort period compared to a normal helmet. The PCM material is packed in pouches and placed between the Expanded Polystyrene Styrofoam(EPS) and Outer Shell of the helmet. As heat is generated inside the helmet, the PCM absorbs the heat, which is then transferred to the fins. Fins are provided to help in a faster heat transfer rate from the helmet to the surrounding. This hence helps in maintaining the internal temperature for the user by preventing the excess heat from accumulating inside the helmet and thereby removing a major cause of discomfort to the rider.

Research paper thumbnail of Thermal performance of single glazing V-through solar collector using horizontal and vertical nail cut twisted tape insert

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

Thermal energy is very lots beneficial in the human day by day lifestyles whereas it is transform... more Thermal energy is very lots beneficial in the human day by day lifestyles whereas it is transformed from solar strength. One of the green methods of garnering warm energy is from the sun plate collector. This paper emphasizes an experimental observe of Nusselt range (Nu), Friction element (fr) and Thermal overall performance (η) of the Double-V-Trough solar Collector (DGVT) ready with plain twisted tape (PTT), horizontal wing twisted tape (HWTT) and vertical wing twisted tape(VWTT) bets under one of a kind turning situations (Y=3& 6) and same working mode. DGVT's warmness transfer capacity is better than an unmarried glass V-Trough sun collector (SGVT) with eight.84%. The usage of the double glazing glass within the V-Trough collector reduces the thermal coefficient which improves the thermal performance. Empirical data has been validated with basic equation and its associated errors are less than ± 14.79% & ± 4.17% for Nu and respectively. The experimental results showed that Nu, frand η in DGVT associated with HWTT were significantly higher than in the tube equipped with VWTT and PTT. The additional fluid disruption close to the tube wall persuaded by the wing and the secondary flow near the tube wall represented by HWTT and VWTT relative to the induced by PTT was determined as the cause of enrichment. Correlations are developed for Nu and to match experimental results and deviation falls within ± 9.25% and ± 7.18%, respectively.

Research paper thumbnail of Polymer composite solar collector for water heating application

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

The unavoidable tool included evaluating the engineering answers aimed at reducing the cost of so... more The unavoidable tool included evaluating the engineering answers aimed at reducing the cost of solar water heaters by combining polymer blends, solar collectors, and heat storage in heater production. Potential for making Solar Collector with the use of Hybrid Artificial Fiber Polymer Composite Complex construction of polymer composite for molding of large components of sun collector. The unit additive materials and engineering answers for their production are carefully analyzed for the manufacturing requirements of solar heaters. Hot molding is the best material and the most useful molding technology is fiberglass Kevlar-stuffed plastic-based available layout thermoses. It is essential to make the soaking panel corrugated and to apply special paint as its selective coating. The parameters of the unit will be optimized by calculation. The advanced two-dimensional version of the unit shows the optimal solution with the investigation.

Research paper thumbnail of Taguchi based optimization of diesel engine parameters with blends of lemon grass oil with ZnO

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

Research paper thumbnail of Performance and emission characteristics of diesel engine using waste plastic oil with N-hexanol as an additive

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

Research paper thumbnail of The effect of strain rate and temperature on mechanical characteristics of aluminised composite solid propellant

International Journal of Ambient Energy

Research paper thumbnail of Influence of an aqueous cerium oxide nanofluid fuel additive on performance and emission characteristics of a compression ignition engine

International Journal of Ambient Energy, 2014

Aqueous cerium oxide at the rate of 50cc per liter was dispersed into diesel and diesel–biodiesel... more Aqueous cerium oxide at the rate of 50cc per liter was dispersed into diesel and diesel–biodiesel using mechanical agitator and an ultrasonicator for preparing the test fuels. Cerium oxide nanomaterials present in the aqueous cerium oxide exhibit higher catalytic activity because of their large contact surface area per unit volume and can react with water at high temperature to generate hydrogen and improve fuel combustion. Also, cerium oxide nanomaterials act as oxygen buffers causing simultaneous oxidation of hydrocarbons (HCs) as well as the reduction of oxides of nitrogen. The neat diesel and test fuels were tested in an engine without changing the engine system at 0%, 25%, 50%, 75% and 100% load condition and resulted in a considerable enhancement in the brake thermal efficiency, improved brake-specific fuel consumption and decreased concentration of HC, NOx and smoke in the exhaust emitted from the diesel engine due to incorporation of aqueous cerium oxide in the test fuels.

Research paper thumbnail of Thermodynamic Analysis of Diesel Engine Fuelled with Aqueous Nanofluid Blends

Thermodynamic analyses are performed on diesel engine with different types of nanofluid blend ope... more Thermodynamic analyses are performed on diesel engine with different types of nanofluid blend operations. Three best blends, i.e., D + 50ZN, D + 50AN, D + 50CN are chosen for exergy analysis. The effects of nanofluid on diesel are examined from the second law perspective. Availability equations are applied to both diesel and nanofluid blend modes at varying engine loads, and exergy terms such as brake work availability, exhaust gas availability, cooling water availability, and irreversibility are calculated and compared. There is an increase in exergy efficiency with an increase in load for all fuel blends tested. The nanofluid blend operations are favored thermodynamically at all loads. For diesel at full load, 26.88% of the fuel exergy is converted to brake power. At same load, nanofluid blend modes have resulted higher exergy efficiency of 28.22, 28.78, 29.16% for D + 50ZN, D + 50AN, D + 50CN, respectively, due to the higher brake work availability and decreased destruction avail...

Research paper thumbnail of Investigation on the aerodynamics characteristics of dimple patterns on the aircraft wing

International Journal of Ambient Energy

Research paper thumbnail of Influence of metallic based fuel additives on performance and exhaust emissions of diesel engine

In this experimental study, influence of the metallic-based additives on fuel consumption and exh... more In this experimental study, influence of the metallic-based additives on fuel consumption and exhaust emissions of diesel engine were investigated. The metallic-based additives were produced by synthesizing of resin acid (abietic acid) with MnO 2 or MgO. These additives were doped into diesel fuel at the rate of 8 lmol/l and 16 lmol/l for preparing test fuels. Both additives improved the properties of diesel fuel such as viscosity, flash point, cloud point and pour point. The fuels with and without additives were tested in a direct injection diesel engine at full load condition. Maximum reduction of specific fuel consumption was recorded as 4.16%. CO emission and smoke opacity decreased by 16.35% and by 29.82%, respectively. NO x emission was measured higher and CO 2 emission was not changed considerably with the metallic-based additives.

Research paper thumbnail of Experimental Study on Nanofluid Fuel and Its Effects on the Performance of CI Engine

This experimental investigation focuses on the significance and influence of cerium oxide in its ... more This experimental investigation focuses on the significance and influence of cerium oxide in its nanoparticle profile on the physicochemical properties and the performance of diesel blends when compared with pure diesel. Cerium oxide in its nanoparticle form, exhibits an unprecedented catalytic activity due to its oxygen buffering capability. Cerium oxide, when allowed to be used as an additive in a diesel engine, is known to exhibit depreciation of oxides of nitrogen and hydrocarbon emissions respectively. Dodecenyl Succinic Anhydride (DDSA) is the surfactant being used so that the cerium oxide-diesel blends remain stable. The cerium oxide is subjected to different procedures such as EDS, XRD, and SEM test for their characterization. The cerium oxide-diesel blends were successfully obtained with the means of an ultrasonic bath sonicator, in a two staged procedure. The influence of cerium oxide on the physicochemical properties of pure diesel has also been explored through comprehen...

Research paper thumbnail of Experimental Investigation and Comparing the Mechanical Properties of Glass Fiber-Reinforced Polymers with Carbon Nanotubes and Sawdust

Research paper thumbnail of Increasing the effectiveness of heat exchanger using Al2O3 nano particle mixed working fluid

Research paper thumbnail of The effect of expanded graphite on the performance of paraffin phase change materials used in thermal energy storage

Journal of Physics: Conference Series

Paraffin is the most commonly used phase change type of material for thermal energy storage but t... more Paraffin is the most commonly used phase change type of material for thermal energy storage but the main drawback is it has very low thermal conductivity. This study aims to enhance the thermal conductivity of the base PCM through the use of expanded graphite as supporting material. The expanded graphite at different percentage 3wt%, 6wt%, 9wt%, 12wt%, 15wt% is mixed with paraffin and five samples are prepared. Experimental results obtained on the samples clearly show that the thermal properties of samples are improved when compare to that of pure paraffin. It is found that both thermal conductivity and thermal diffusivity are increasing rapidly. Melting temperature is standard there is no change for all the compositions. Specific heat gradually started increasing during the initial time and then it started decreasing as the expanded graphite percentage increased. The latent heat value of this composition has decreased a lot when compared to pure paraffin.

Research paper thumbnail of Fabrication and analysis of motorbike helmet using PCM for temperature control

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

It is estimated that 40 – 50% of the total heat produced within the body is released through the ... more It is estimated that 40 – 50% of the total heat produced within the body is released through the head. This dissipated heat from our head gets trapped inside the helmet resulting in increased internal temperature along with the addition of external heat from the surrounding, making it uncomfortable for the user. This work discloses on the designing and fabrication of a cooling system implemented in a motorbike helmet with the use of PCM(Phase Change Material) and mechanically constructed Fins fixed onto the shell surface, to prolong the thermal comfort period compared to a normal helmet. The PCM material is packed in pouches and placed between the Expanded Polystyrene Styrofoam(EPS) and Outer Shell of the helmet. As heat is generated inside the helmet, the PCM absorbs the heat, which is then transferred to the fins. Fins are provided to help in a faster heat transfer rate from the helmet to the surrounding. This hence helps in maintaining the internal temperature for the user by preventing the excess heat from accumulating inside the helmet and thereby removing a major cause of discomfort to the rider.

Research paper thumbnail of Thermal performance of single glazing V-through solar collector using horizontal and vertical nail cut twisted tape insert

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

Thermal energy is very lots beneficial in the human day by day lifestyles whereas it is transform... more Thermal energy is very lots beneficial in the human day by day lifestyles whereas it is transformed from solar strength. One of the green methods of garnering warm energy is from the sun plate collector. This paper emphasizes an experimental observe of Nusselt range (Nu), Friction element (fr) and Thermal overall performance (η) of the Double-V-Trough solar Collector (DGVT) ready with plain twisted tape (PTT), horizontal wing twisted tape (HWTT) and vertical wing twisted tape(VWTT) bets under one of a kind turning situations (Y=3& 6) and same working mode. DGVT's warmness transfer capacity is better than an unmarried glass V-Trough sun collector (SGVT) with eight.84%. The usage of the double glazing glass within the V-Trough collector reduces the thermal coefficient which improves the thermal performance. Empirical data has been validated with basic equation and its associated errors are less than ± 14.79% & ± 4.17% for Nu and respectively. The experimental results showed that Nu, frand η in DGVT associated with HWTT were significantly higher than in the tube equipped with VWTT and PTT. The additional fluid disruption close to the tube wall persuaded by the wing and the secondary flow near the tube wall represented by HWTT and VWTT relative to the induced by PTT was determined as the cause of enrichment. Correlations are developed for Nu and to match experimental results and deviation falls within ± 9.25% and ± 7.18%, respectively.

Research paper thumbnail of Polymer composite solar collector for water heating application

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

The unavoidable tool included evaluating the engineering answers aimed at reducing the cost of so... more The unavoidable tool included evaluating the engineering answers aimed at reducing the cost of solar water heaters by combining polymer blends, solar collectors, and heat storage in heater production. Potential for making Solar Collector with the use of Hybrid Artificial Fiber Polymer Composite Complex construction of polymer composite for molding of large components of sun collector. The unit additive materials and engineering answers for their production are carefully analyzed for the manufacturing requirements of solar heaters. Hot molding is the best material and the most useful molding technology is fiberglass Kevlar-stuffed plastic-based available layout thermoses. It is essential to make the soaking panel corrugated and to apply special paint as its selective coating. The parameters of the unit will be optimized by calculation. The advanced two-dimensional version of the unit shows the optimal solution with the investigation.

Research paper thumbnail of Taguchi based optimization of diesel engine parameters with blends of lemon grass oil with ZnO

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

Research paper thumbnail of Performance and emission characteristics of diesel engine using waste plastic oil with N-hexanol as an additive

3RD INTERNATIONAL CONFERENCE ON FRONTIERS IN AUTOMOBILE AND MECHANICAL ENGINEERING (FAME 2020)

Research paper thumbnail of The effect of strain rate and temperature on mechanical characteristics of aluminised composite solid propellant

International Journal of Ambient Energy

Research paper thumbnail of Influence of an aqueous cerium oxide nanofluid fuel additive on performance and emission characteristics of a compression ignition engine

International Journal of Ambient Energy, 2014

Aqueous cerium oxide at the rate of 50cc per liter was dispersed into diesel and diesel–biodiesel... more Aqueous cerium oxide at the rate of 50cc per liter was dispersed into diesel and diesel–biodiesel using mechanical agitator and an ultrasonicator for preparing the test fuels. Cerium oxide nanomaterials present in the aqueous cerium oxide exhibit higher catalytic activity because of their large contact surface area per unit volume and can react with water at high temperature to generate hydrogen and improve fuel combustion. Also, cerium oxide nanomaterials act as oxygen buffers causing simultaneous oxidation of hydrocarbons (HCs) as well as the reduction of oxides of nitrogen. The neat diesel and test fuels were tested in an engine without changing the engine system at 0%, 25%, 50%, 75% and 100% load condition and resulted in a considerable enhancement in the brake thermal efficiency, improved brake-specific fuel consumption and decreased concentration of HC, NOx and smoke in the exhaust emitted from the diesel engine due to incorporation of aqueous cerium oxide in the test fuels.

Research paper thumbnail of Thermodynamic Analysis of Diesel Engine Fuelled with Aqueous Nanofluid Blends

Thermodynamic analyses are performed on diesel engine with different types of nanofluid blend ope... more Thermodynamic analyses are performed on diesel engine with different types of nanofluid blend operations. Three best blends, i.e., D + 50ZN, D + 50AN, D + 50CN are chosen for exergy analysis. The effects of nanofluid on diesel are examined from the second law perspective. Availability equations are applied to both diesel and nanofluid blend modes at varying engine loads, and exergy terms such as brake work availability, exhaust gas availability, cooling water availability, and irreversibility are calculated and compared. There is an increase in exergy efficiency with an increase in load for all fuel blends tested. The nanofluid blend operations are favored thermodynamically at all loads. For diesel at full load, 26.88% of the fuel exergy is converted to brake power. At same load, nanofluid blend modes have resulted higher exergy efficiency of 28.22, 28.78, 29.16% for D + 50ZN, D + 50AN, D + 50CN, respectively, due to the higher brake work availability and decreased destruction avail...

Research paper thumbnail of Investigation on the aerodynamics characteristics of dimple patterns on the aircraft wing

International Journal of Ambient Energy

Research paper thumbnail of Influence of metallic based fuel additives on performance and exhaust emissions of diesel engine

In this experimental study, influence of the metallic-based additives on fuel consumption and exh... more In this experimental study, influence of the metallic-based additives on fuel consumption and exhaust emissions of diesel engine were investigated. The metallic-based additives were produced by synthesizing of resin acid (abietic acid) with MnO 2 or MgO. These additives were doped into diesel fuel at the rate of 8 lmol/l and 16 lmol/l for preparing test fuels. Both additives improved the properties of diesel fuel such as viscosity, flash point, cloud point and pour point. The fuels with and without additives were tested in a direct injection diesel engine at full load condition. Maximum reduction of specific fuel consumption was recorded as 4.16%. CO emission and smoke opacity decreased by 16.35% and by 29.82%, respectively. NO x emission was measured higher and CO 2 emission was not changed considerably with the metallic-based additives.