Evaporation Characteristics of Fuels for Low-Temperature Combustion Engine Application Tata Motors Limited

Format:

Book

Conference/Event

Author/Creator:

Gupta, Saurabh Kumar, author.

Contributor:

Krishnasamy, Anand

Conference Name:

SAE Powertrains, Fuels & Lubricants Digital Summit (2021-09-28 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

The research on reducing emissions from automotive engines through modifications in the combustion mode and the fuel type is gainingmomentum because of increasing contribution to the global warmingpotential by the transport sector. The combustion and emissionformation in the advanced low-temperature combustion (LTC) enginestrategies are highly sensitive to the fuel molecular composition andits properties. As the ignition timing in LTC is primarily controlledby the fuel chemical kinetics, tailoring of fuel properties is requiredto address the limitations in-terms of lack of ignition timing controland a narrow operating load range. Utilizing fuel blends and additivessuch as nanoparticles are one of the promising approaches to achievetargeted fuel property. An improved understanding of fundamentalprocesses including fuel evaporation is required owing to its role infuel-air mixing and emission formation in LTC. In the present work,evaporation rate characteristics of blends of commercial fuels, viz.gasoline, diesel, and alternative fuels, viz. ethanol and butanol areinvestigated. Further, the effect of graphene-based nano additives at0.05 wt % in gasoline, diesel, and butanol are also investigated. Thisstudy is intended to understand the fundamental behavior of differentfuel options for LTC. The important engine fuel properties viz.density, viscosity, surface tension for all the test fuel samples aremeasured following ASTM standard test procedure. The evaporationrate studies are carried out by using the hanging droplet method. Theresults obtained show that the trends of the changes in gross fuelproperties including density, viscosity and surface tension for the fuelblends are in accordance with the base fuel proportion, while thechanges are insignificant with nanoparticle addition. The evaporationrate study reveals that the changes in fuel evaporation rate arestrongly influenced by the fuel type, viz. multi-component or singlecomponent. Utilizing fuel blends is found to suppress the hydrophilicnature in the case of ethanol. Further, the addition of nanoparticles isfound to significantly improve the evaporation rates of fuel blends

Notes:

Vendor supplied data

Publisher Number:

2021-01-1210

Access Restriction:

Restricted for use by site license