Autoignition study of binary blends of n- dodecane/1-methylnaphthalene and iso- cetane/1-methylnaphthalene

Kukkadapu, Goutham; Sung, Chih-Jen

doi:10.1016/j.combustflame.2017.07.025

Autoignition study of binary blends of n- dodecane/1-methylnaphthalene and iso- cetane/1-methylnaphthalene

Journal Article · Fri Nov 24 00:00:00 EST 2017 · Combustion and Flame

DOI:https://doi.org/10.1016/j.combustflame.2017.07.025· OSTI ID:1430971

Kukkadapu, Goutham ^[1]; Sung, Chih-Jen ^[2]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Connecticut, Storrs, CT (United States). Dept. of Mechanical Engineering
Univ. of Connecticut, Storrs, CT (United States). Dept. of Mechanical Engineering

An experimental study on autoignition of two binary blends, n-dodecane/1-methylnaphthalene and iso-cetane/1-methylnaphthalene, has been conducted using a rapid compression machine. Specifically, the ignition delays of the stoichiometric blend+air mixtures were measured at elevated pressures of P_C = 15 bar and 30 bar, compressed temperatures of T_C = 626–944 K, and varying blending ratios of the constituents. For a given set of P_C and T_C, a nonlinear response of the blend reactivity with respect to the relative amount of the constituents was observed. Since a comprehensive chemical kinetic model for the blends investigated here is under development, the current ignition delay datasets serve as the needed targets for model validation. For selected conditions, ignition delay simulations were conducted to highlight and discuss the deficiencies of the literature models and the potential areas for model improvements, especially at low temperatures. In conclusion, further chemical kinetic analyses were conducted to gain understanding of the blending behavior predicted by the available model.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1430971

Alternate ID(s):: OSTI ID: 1576832

Report Number(s):: LLNL-JRNL--719499

Journal Information:: Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: C Vol. 189; ISSN 0010-2180

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Autoignition study of binary blends of n- dodecane/1-methylnaphthalene and iso- cetane/1-methylnaphthalene

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