- Title
- Vehicle driving cycle performance of the spark-less di-ji hydrogen engine
- Creator
- Boretti, Alberto
- Date
- 2010
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/55055
- Identifier
- vital:2934
- Identifier
-
https://doi.org/10.1016/j.ijhydene.2010.02.136
- Identifier
- ISSN:0360-3199
- Abstract
- The paper describes coupled CFD combustion simulations and CAE engine performance computations to describe the operation over the full range of load and speed of an always lean burn, Direct Injection Jet Ignition (DI-JI) hydrogen engine. Jet ignition pre-chambers and direct injection are enablers of high efficiencies and load control by quantity of fuel injected. Towards the end of the compression stroke, a small quantity of hydrogen is injected within the spark-less pre-chamber of the DI-JI engine, where it mixes with the air entering from the main chamber and auto-ignites because of the high temperature of the hot glow plug. Then, jets of partially combusted hot gases enter the main chamber igniting there in the bulk, over multiple ignition points, lean stratified mixtures of air and fuel. Engine maps of brake specific fuel consumption vs. speed and brake mean effective pressure are computed first. CAE vehicle simulations are finally performed evaluating the fuel consumption over emission cycles of a vehicle equipped with this engine. © 2010 Professor T. Nejat Veziroglu.
- Publisher
- Elsevier
- Relation
- International Journal of Hydrogen Energy Vol. 35, no. 10 (2010), p. 4702-4714
- Rights
- Copyright Elsevier
- Rights
- Open Access
- Rights
- This metadata is freely available under a CCO license
- Subject
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics; 0914 Resources Engineering and Extractive Metallurgy; 0306 Physical Chemistry (Incl. Structural); Bulk ignition and combustion; Direct injection; Driving cycles; Engine simulations; Gas engines; Glow plug controlled auto ignition; Jet ignition; Lean burn stratified combustion; Vehicle simulations
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