Comparative evaluation of performance, emission, lubricant and deposit characteristics of spark ignition engine fueled with CNG and 18% hydrogen-CNG

Mathai, Reji; Malhotra, Ravinder; Subramanian, K.A.; Das, L.M.

doi:10.1016/j.ijhydene.2012.01.083

Cited by 63 publications

(16 citation statements)

References 5 publications

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“…The amount of carbon monoxide and hydrocarbon thus formed can be neglected for all practical purposes. The only pollutant of concern, which is emitted from a hydrogen operated engine system, happens to be oxides of nitrogen [106,117]. The enriched biogas can also be used as an alternative fuel for IC engines, as it does not add any CO 2 to the atmosphere and at par with CNG fuel [118] The well-to-wheel analysis on substantial potential reductions in greenhouse gas emissions through the use of hydrogen from a variety of sources is shown in Fig.…”

Section: Environmental Impacts From Hydrogen Enginesmentioning

confidence: 99%

Sustainable development of road transportation sector using hydrogen energy system

Salvi

Subramanian

2015

Renewable and Sustainable Energy Reviews

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219

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Section: Environmental Impacts From Hydrogen Enginesmentioning

confidence: 99%

Sustainable development of road transportation sector using hydrogen energy system

Salvi

Subramanian

2015

Renewable and Sustainable Energy Reviews

Self Cite

219

View full text Add to dashboard Cite

“…The decreased value of kinematic viscosity can be attributed to the increased oxidation, decay of additives and dilution of oil during the advocated running hours. 24,25,35 The flash point result for used oil showed the reduction of 8.8% (228.91) from 251°C (non-deteriorated oil). This decline can be attributed to the fuel contamination during the engine working as due to higher temperature larger molecules break down to smaller molecules.…”

Section: Lube Oil Propertiesmentioning

confidence: 99%

“…It can be inferred that the deterioration leads to loss in the oil properties and, consequently, increase in frictional losses caused reduction in brake torque. 24,35,38 Figure 5 represents the brake power variations for each different oil conditions. Similar trend was observed for the lube oils in case of brake power.…”

Section: Engine Performancementioning

confidence: 99%

Experimental assessment of regenerated lube oil in spark-ignition engine for sustainable environment

Usman

Saqib

Zubair

et al. 2014

Advances in Mechanical Engineering

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Lube oils are the viscous petroleum products used in automobiles to reduce the friction. The eventual fate of lube oil is either incineration or dumping off into ground, but these resources cannot be disposed off easily due to their libellous effects on environment. This article aims to study the regeneration of deteriorated oil and impact of regenerated oil on engine performance and engine emissions. The effectuality of regeneration is studied by comparing the results of the key parameters (specific gravity, viscosity, total acid number, flash point and ash contents) of regenerated oil with that of non-deteriorated and deteriorated oil. Engine performance and emissions for regenerated oil were compared with non-deteriorated and deteriorated oil. The brake power and torque increased by 4.1% and 4.6%, respectively, following the regeneration process. After re-refining of lube oil, specific gravity, flash point, kinematic viscosity, ash content and total acid number improved by 6.75%, 2.66%, 15.6%, 1.7% and 10.64%, respectively. In case of deteriorated oil, HC, NOx and CO increased by 23.6%, 42.2% and 11.8%, respectively. But after regeneration of oil, these emissions decreased as compared with deteriorated oil. It can be reasoned out that regeneration mends oil properties and has positive impact over engine performance and emissions.

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“…Various gaseous fuels such as biogas, producer gas, hydrogen, LPG and CNG (Compressed Natural Gas) are suitable for Internal Combustion Engines [4]. But LPG and CNG are considered better alternatives because of their simpler structure with low carbon content, resulting in reduction of exhaust emissions drastically [5].…”

Section: Introductionmentioning

confidence: 99%

Performance and Emission Study on a Dual Fuel Engine with Modified Gas Inlet

Sendilvelan¹,

Sundarraj²

2016

IJHT

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In the present work experiments were done on a modified LPG Diesel dual fuel engine with diesel as primary fuel and liquefied petroleum gas as secondary fuel by providing a venturi at the inlet manifold for better performance at all loading conditions. The engine was run at different operating conditions and in each case the optimum combination fuel energy proportions were determined for best efficiency. The exhaust smoke level, temperature, and other emission parameters were measured. The results were compared with the performance of the engine with diesel as sole fuel, and as dual engine without modifications and specific conclusions were then arrived. It was concluded that the brake thermal efficiency slightly reduces with modified design in comparison with conventional design. Diesel consumption is reduced considerably and also CO and HC emission are slightly higher at lower loads and reduces with increase in load. Smoke density and NOx are reasonably reduced in the modified design with LPG flow rate of 0.3 kg/hr found to be optimum in all conditions.

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Comparative evaluation of performance, emission, lubricant and deposit characteristics of spark ignition engine fueled with CNG and 18% hydrogen-CNG

Cited by 63 publications

References 5 publications

Sustainable development of road transportation sector using hydrogen energy system

Sustainable development of road transportation sector using hydrogen energy system

Experimental assessment of regenerated lube oil in spark-ignition engine for sustainable environment

Performance and Emission Study on a Dual Fuel Engine with Modified Gas Inlet

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