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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Control of a Turbo Charged NVO HCCI Engine using a Model Based Approach
TL;DR: In this paper, a spray guided, turbo charged, negative valve overlap HCCI engine can be developed using a state space model, used for Kalman filter and main feedback controller design.
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An In-Cycle based NOx Reduction Strategy using Direct Injection of AdBlue
TL;DR: In this article, a second injector is installed in a Scania D13 cylinder head for urea injection purposes, where a parameter sweep is conducted to evaluate the concept where also an SCR-catalyst has been introduced to the engine system and the results suggest that it is possible to reduce NOx in-cycle, up to 30% at 4.3 bar and 7.7 bar IMEPnet, and 50% at an IMEP net load of 11.8 bar.
Assessing Low Carbon Transitions: A Conceptual Model
TL;DR: In this paper, the authors present a conceptual assessment model or framework for policy relevant analysis of low carbon transitions, and they find that there are at least three elements of an assessment model that are important to provide policy relevant knowledge: monitoring, policy evaluation, and domain knowledge building processes, including research.
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Exercise capacity in adult patients with tetralogy of Fallot
Anette Sandström,Anna Wikner,Daniel Rinnström,Camilla Sandberg,Christina Christersson,Mikael Dellborg,Niels Erik Nielsen,Peder Sörensson,Ulf Thilén,Bengt Johansson +9 more
TL;DR: In patients with repaired tetralogy of Fallot the exercise capacity was approximately 75% of expected, regardless of age, and patients with better NYHA class and high physical activity level had a higher exercise capacity.