B
Bengt Johansson
Researcher at Umeå University
Publications - 647
Citations - 22112
Bengt Johansson is an academic researcher from Umeå University. The author has contributed to research in topics: Combustion & Homogeneous charge compression ignition. The author has an hindex of 66, co-authored 635 publications receiving 19206 citations. Previous affiliations of Bengt Johansson include Lund University & Chalmers University of Technology.
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Journal ArticleDOI
Closed‐loop combustion control of homogeneous charge compression ignition (HCCI) engine dynamics
TL;DR: In this paper, a comparative study of different cylinder-pressure based methods for estimating the crank angle of 50% burnt is performed in terms of accuracy, robustness and feasibility for cycle-to-cycle real-time control.
Proceedings ArticleDOI
Lean Burn Natural Gas Operation vs. Stoichiometric Operation with EGR and a Three Way Catalyst
TL;DR: In this article, the authors compared lean burn operation with operation at stoichiometric conditions diluted with EGR, and using a three-way catalyst, and showed that the results showed that NOdx and HC emissions were several orders of magnitude lower than at lean operation.
Proceedings ArticleDOI
HCCI Closed-Loop Combustion Control Using Fast Thermal Management
TL;DR: In this paper, the authors applied closed-loop combustion control (CLCC) using Fast Thermal Management (FTM) on a multi-cylinder VCR engine together with load control, to achieve a favorable combustion phasing and load at all times.
Proceedings ArticleDOI
Investigation of the Early Flame Development in Spark Assisted HCCI Combustion Using High Speed Chemiluminescence Imaging
TL;DR: In this article, the influence of the spark is studied in a single cylinder operated engine with optical access, where combustion is monitored by in-cylinder pressure and simultaneous high speed chemiluminescence imaging.
Journal ArticleDOI
Long-Term Outcome of Mustard/Senning Correction for Transposition of the Great Arteries in Sweden and Denmark
Niels Vejlstrup,Keld E. Sørensen,Eva Mattsson,Ulf Thilén,Per-David Kvidal,Bengt Johansson,Kasper Iversen,Lars Søndergaard,Mikael Dellborg,Peter Eriksson +9 more
TL;DR: The long-term survival of patients with Mustard and Senning correction for TGA appears to be primarily determined by factors in the right ventricle and tricuspid valve and not the timing of or the type of surgery in childhood.