ABSTRACT
An experimentally-correlated simulation study was carried out for commercial heavy-duty truck engine working on dual fuel using upgraded biogas as a primary fuel and diesel pilot as an ignition source. The aim was to investigate the potential benefits of cylinder deactivation (CDA) technique combined with partial restriction of the intake air as a way of improving the light load operation of dual fuel engines to make them suitable for truck propulsion in urban settings. Various air restriction techniques were examined, including intake throttling, the use of exhaust gas recirculation (EGR) and employing Miller cycle with late intake valve closing (LIVC).
