Hydrogen fuel utilization in CI engine powered end utility systems

Abstract This paper presents in detail work carried out by the authors on a small end-utility compression ignition (CI) engine genset system operated with hydrogen fuel substitution. The system performance and emission characteristics have been evaluated and analysed. Diferent diluents were used to improve the engine operation and bring down the emission levels. A portable, compact trolley mounted bottled hydrogen system complete with suitably designed flame trap, engine intake retrofit and water injection arrangement was standardized for on-site hydrogen operation of a diesel pumpset/genset system. The system gave satisfactory long term performance with around 66% full load hydrogen energy substitution without any loss of thermal efficiency while employing a very nominal amount of water injection.