K
Karl Alexander Heufer
Researcher at RWTH Aachen University
Publications - 35
Citations - 1518
Karl Alexander Heufer is an academic researcher from RWTH Aachen University. The author has contributed to research in topics: Chemistry & Combustion. The author has an hindex of 9, co-authored 17 publications receiving 1150 citations. Previous affiliations of Karl Alexander Heufer include National University of Ireland, Galway.
Papers
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Journal ArticleDOI
An experimental and detailed chemical kinetic modeling study of hydrogen and syngas mixture oxidation at elevated pressures
Alan Keromnes,Wayne K. Metcalfe,Karl Alexander Heufer,Nicola Donohoe,Apurba K. Das,Apurba K. Das,Chih-Jen Sung,Jürgen Herzler,Clemens Naumann,Peter Griebel,Olivier Mathieu,Michael Krejci,Eric L. Petersen,William J. Pitz,Henry J. Curran +14 more
TL;DR: In this paper, a detailed chemical kinetic mechanism for hydrogen and H2/CO (syngas) mixtures has been updated, rate constants have been adjusted to reflect new experimental information obtained at high pressures and new rate constant values recently published in the literature, and good agreement was observed.
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An ignition delay time and chemical kinetic modeling study of the pentane isomers
John Bugler,Brandon Marks,Olivier Mathieu,Rachel Archuleta,Alejandro Camou,Claire Grégoire,Karl Alexander Heufer,Eric L. Petersen,Henry J. Curran +8 more
TL;DR: In this paper, the ignition delay time data for the pentane isomers at equivalence ratios of 0.5, 1.0, and 2.0 in 99% argon, at pressures near 1 and 10 atm in a shock tube.
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A comprehensive iso-octane combustion model with improved thermochemistry and chemical kinetics
Nour Atef,Goutham Kukkadapu,Samah Y. Mohamed,Mariam J. Al Rashidi,Colin Banyon,Marco Mehl,Karl Alexander Heufer,Ehson F. Nasir,Adamu Alfazazi,Apurba K. Das,Charles K. Westbrook,William J. Pitz,Tianfeng Lu,Aamir Farooq,Chih-Jen Sung,Henry J. Curran,Mani Sarathy +16 more
TL;DR: In this article, the authors presented work was supported by Saudi Aramco under the FUELCOM program and by the King Abdullah University of Science and Technology (KAUST) with competitive research funding given to the Clean Combustion Research Center (CCRC).
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On the Chemical Kinetics of Ethanol Oxidation: Shock Tube, Rapid Compression Machine and Detailed Modeling Study
Changyoul Lee,Stijn Vranckx,Karl Alexander Heufer,Sergey V. Khomik,Yasar Uygun,Herbert Olivier,Ravi X. Fernandez +6 more
TL;DR: Li et al. as discussed by the authors used high pressure shock tube (HPST) at pressures close to 80 bar by probing pressure time histories and CH* emission, and showed that the model provided excellent agreement for the auto-ignition results obtained in the RCM and the high temperature shock induced ignition delays.
Journal ArticleDOI
Role of peroxy chemistry in the high-pressure ignition of n-butanol - Experiments and detailed kinetic modelling
Stijn Vranckx,Karl Alexander Heufer,Carson Odell Lee,Herbert Olivier,Leonhard Schill,Wassja A. Kopp,Kai Leonhard,Craig A. Taatjes,Ravi X. Fernandes +8 more
TL;DR: In this article, the authors investigated the oxidation of n-butanol in air at pressures near 80 bar and determined the time of ignition by recording pressure and CH-emission time histories throughout the course of the experiments.