-Sensitivity Evaluation of n-Butanol and Iso-Butanol Blends with Surrogate Gasoline Lund University

Format:

Book

Conference/Event

Author/Creator:

Alemahdi, Nika, author.

Contributor:

Garcia, Antonio

Tuner, Martin

Conference Name:

16th International Conference on Engines & Vehicles (2023-09-10 : Capri, Italy)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2023

Summary:

Using renewable fuels is a reliable approach for decarbonization of combustion engines. iso-Butanol and n-butanol are known as longer chain alcohols and have the potential of being used as gasoline substitute or a renewable fraction of gasoline. The combustion behavior of renewable fuels in modern combustion engines and advanced combustion concepts is not well understood yet. Low-temperature combustion (LTC) is a concept that is a basis for some of the low emissions-high efficiency combustion technologies. Fuel -sensitivity is known as a key factor to be considered for tailoring fuels for these engines. The Lund -sensitivity method is an empirical test method for evaluation of the -sensitivity of liquid fuels and evaluate fuel behavior in thermal. iso-Butanol and n-butanol are two alcohols which like other alcohol exhibit nonlinear behavior when blended with (surrogate) gasoline in terms of RON and MON. In this study, first the Lund -sensitivity numbers of iso-butanol and n-butanol at CA503°CA after TDC is measured. CA50 is the rank angle degree at which 50% of total accumulated heat is released. Then, the Lund -sensitivity number of iso-butanol at two later combustion phasing of CA508 and 6 °CA after TDC is evaluated. Finally, the Lund -sensitivity number of volumetric blends of iso-butanol and surrogate gasoline (RON87) were measured. The results show the -sensitivity of iso-butanol is lower than n-butanol which means the combustion behavior of iso-butanol is less sensitive to thermal and fuel stratification. The nonlinear behavior of Lund -sensitivity number of iso-butanol blends with surrogate gasoline is observed. As expected, the later combustion phasing lowers the Lund -sensitivity number of the tested fuel and increases the experimental range successfully

Notes:

Vendor supplied data

Publisher Number:

2023-24-0089

Access Restriction:

Restricted for use by site license