Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: keyword exact "Bi-fuel" Add to list Book Chapter How efficient are hydrogen-fueled internal combustion engines? Sebastian Verhelst (UGent) , Roger Sierens (UGent) and T Wallner (2012) Green energy and technology. p.275-311 Add to list Journal Article A1 open access Impact of variable valve timing on power, emissions and backfire of a bi-fuel hydrogen/gasoline engine Sebastian Verhelst (UGent) , Joachim Demuynck, Roger Sierens (UGent) and Pieter Huyskens (2010) INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. 35(9). p.4399-4408 Add to list Journal Article A1 open access Efficiency comparison between hydrogen and gasoline, on a bi-fuel hydrogen/gasoline engine Sebastian Verhelst (UGent) , Pieter Maesschalck, Nathalie Rombaut and Roger Sierens (UGent) (2009) INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. 34(5). p.2504-2510