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126 results on '"Munuswamy, Dinesh"'

9. Effect of Butylated Hydroxytoluene Nanoparticles Blended with Biodiesel Derived from Bauhinia Purpurea Linn Seed Fueled in a CRDI Diesel Engine.

Author

Lionus Leo, G. M., Munuswamy, Dinesh Babu, Jayabal, Ravikumar, and Devarajan, Yuvarajan

Subjects
*RENEWABLE energy sources, *BUTYLATED hydroxytoluene, *PETROLEUM waste, *BAUHINIA, *FOSSIL fuels, *DIESEL motors, *DIESEL fuels
Abstract

This study sought to investigate techniques for lowering diesel engine emissions by using waste seed as an alternative energy source in place of conventional fossil fuels. This study thoroughly investigated the process of transesterifying waste seed oil obtained from Bauhinia purpurea linn for use as fuel in a common rail direct injection (CRDI) diesel engine. Butylated hydroxytoluene (BHT) nanoparticles serve as a combustion enhancer. The engine outcome metrics were analyzed using diesel, Bauhinia purpurea linn biodiesel (BPLB) and BPLB-BHT blends (BPLB + 10μm BHT 10 ppm and BPLB + 20μm BHT 10 ppm) without changing the operating circumstances. At full brake power, the BPLB + 10μm BHT 10 ppm mix outperformed the BPLB and BPLB + 20μm BHT 10 ppm blends, but fell short of diesel. The BPLB + 10μm BHT 10 ppm blend reduced smoke opacity by 39.14%, hydrocarbon (HC) emissions by 42.71%, carbon monoxide (CO) emissions by 59.03% and oxides of nitrogen (NOx) emissions by 12.29% compared to neat diesel fuel at maximum brake power. [ABSTRACT FROM AUTHOR]

Published
2024
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31. Evaluation of compression ignition engine ignition patterns fueled with dual fuels.

Author

Devarajan, Yuvarajan, Munuswamy, Dinesh Babu, Subbiah, Ganesan, Mishra, Ruby, and Vellaiyan, Suresh

Subjects
EXHAUST gas recirculation, DIESEL motors, DIESEL fuels, LIQUID fuels, FOSSIL fuels, GAS as fuel, FUELING
Abstract

Dual fueling is a successful model in the engine combustion area which perks up the performance and emission fronts. The combined effect of using biodiesel and gas dual fueling shall address the problem associated with emissions and depletion of fossil fuels. Fuel derived from Annona squamosa seeds is a creditable biofuel, which is resulted from waste seeds. This paper characterizes the gaseous exhaust emission and performance model of a dual-fueled, direct injection diesel engine fueled with ethane as gaseous fuel and Annona squamosa biodiesel as the base and liquid fuel. Ethane is supplied with air in the intake manifold at different flow rates (five lpm and ten lpm). Ethane supply at ten lpm lowered HC emissions by seven ppm, CO by 0.4% and smoke emission by 0.2 BSU for biodiesel. In addition, ethane supply to biodiesel lowered the BSFC by 13 kg/kW-h and enhanced the efficiency by 0.4%. Hence, dual-fueling ethane is an effective technique for improving the usage of biofuels in diesel engine applications. [ABSTRACT FROM AUTHOR]

Published
2022
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38. Performance, Combustion, and Emission Analysis of Neat Palm Oil Biodiesel and Higher Alcohol Blends in a Diesel Engine

Author

Devarajan, Yuvarajan, Munuswamy, Dinesh Babu, Mahalingam, Arulprakasajothi, and Nagappan, Beemkumar

Abstract

In this work, palm oil biodiesel (POBD100) with a cyclo-octanol additive was employed in a constant speed diesel engine, and its effects on engine combustion, emission, and performance were studied. The biodiesel produced from palm oil by the conventional transesterification process, sodium hydroxide, and methanol were involved in the conversion of oil into biodiesel. The five fuels evaluated were neat palm oil biodiesel (POBD100), octanol blended with palm oil biodiesel by 10% volume (POBD90O10), octanol blended with palm oil biodiesel by 20% volume (POBD80O20), octanol blended with palm oil biodiesel by 30% volume (POBD70O30), and petroleum diesel. The experimental results revealed that with the increased octanol fraction, the combustion was smooth. All the octanol and biodiesel blends provide earlier combustion when compared to neat palm oil biodiesel which leads to higher thermal efficiency, lower fuel consumption, lower peak pressure, and shorter ignition delay. All the emissions are reduced by the addition of cyclo-octanol in palm oil biodiesel in all loads owing to the higher oxygen concentration of air/fuel mixtures and improved atomization. Based on the outcome of this study, palm oil biodiesel and cyclo-octanol blends can be employed as a potential alternative fuel for existing unmodified diesel engines owing to its improved combustion, emission, and performance characteristics.

Published
2024
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39. Testing and Evaluation of Performance and Emissions Characteristics of Water- Biodiesel Aspirated Research Engine.

Author

Sudalaimuthu, Ganesan, Rathinam, Sivasubramanian, Munuswamy, Dinesh Babu, Thirugnanasambandam, Arunkumar, and Devarajan, Yuvarajan

Abstract

This work aims to investigate the effect of the addition of water to corn oil biodiesel (BD) (COBD) in a diesel engine to view its effect on performance and emission characteristics. Two fuel samples were prepared using a novel surfactant Span 80 (MilliporeSigma, Burlington, MA), with different concentrations (94% corn oil + 4% water + 2% Span 80 (COBDE1) and 90% corn oil + 8% water + 2% Span 80 (COBDE2)). Experimental results showed that the water samples of COBD had higher brake thermal efficiency and lower brake-specific fuel consumption than that of neat COBD at all engine brake power. In addition, smoke and nitrogen oxide emissions are reduced by 4-11% and 6-10% using corn oil-water samples compared to neat COBD. Furthermore, the introduction of COBD-water emulsions in a diesel engine reduces the unburned hydrocarbon and carbon monoxide emissions considerably. [ABSTRACT FROM AUTHOR]

Published
2020
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