This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Port Injection of Water into a DI Hydrogen Engine
Technical Paper
2015-01-0861
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Hydrogen fueled internal combustion engines have potential for high thermal efficiencies; however, high efficiency conditions can produce high nitrogen oxide emissions (NOx) that are challenging to treat using conventional 3-way catalysts. This work presents the results of an experimental study to reduce NOx emissions while retaining high thermal efficiencies in a single-cylinder research engine fueled with hydrogen. Specifically, the effects on engine performance of the injection of water into the intake air charge were explored. The hydrogen fuel was injected into the cylinder directly. Several parameters were varied during the study, including the amount of water injected into the intake charge, the amount of fuel injected, the phasing of the fuel injection, the number of fuel injection events, and the ignition timing. The results were compared with expectations for a conventionally operated hydrogen engine where load was controlled through changes in equivalence ratio. With water injection into the intake air charge, the NOx emissions were reduced by 87% with a 2% penalty in fuel consumption. At a threshold of 90 parts per million (ppm) of NOx, the maximum load was increased by 23.9%.
Recommended Content
Authors
Topic
Citation
Younkins, M., Wooldridge, M., and Boyer, B., "Port Injection of Water into a DI Hydrogen Engine," SAE Technical Paper 2015-01-0861, 2015, https://doi.org/10.4271/2015-01-0861.Also In
References
- Younkins , M. , Boyer , B. , and Wooldridge , M. Hydrogen DI Dual Zone Combustion System SAE Int. J. Engines 6 1 45 53 2013 10.4271/2013-01-0230
- Rousseau , A. , Pagerit , S , Wallner , T. , and Lohse , H. Comparison between Fuel Cell and Hydrogen Engine Fuel Consumption 2008
- Natkin , R. , Denlinger , A. , Younkins , M. , Weimer , A. et al. Ford 6.8L Hydrogen IC Engine for the E-450 Shuttle Van SAE Technical Paper 2007-01-4096 2007 10.4271/2007-01-4096
- Szwabowski , S. , Hashemi , S. , Stockhausen , W. , Natkin , R. et al. Ford Hydrogen Engine Powered P2000 Vehicle SAE Technical Paper 2002-01-0243 2002 10.4271/2002-01-0243
- Swain , M. , Swain , M. , and Adt , R. Considerations in the Design of an Inexpensive Hydrogen-Fueled Engine SAE Technical Paper 881630 1988 10.4271/881630
- Younkins , M. , Wooldridge , M. , and Boyer , B. Direct In-cylinder Injection of Water into a PI Hydrogen Engine SAE Technical Paper 2013-01-0227 2013 10.4271/2013-01-0227
- Nande , A. , Wallner , T. , and Naber , J. Influence of Water Injection on Performance and Emissions of a Direct-Injection Hydrogen Research Engine SAE Technical Paper 2008-01-2377 2008 10.4271/2008-01-2377
- Bleechmore , C. and Brewster , S. Dilution Strategies for Load and NOx Management in a Hydrogen Fuelled Direct Injection Engine SAE Technical Paper 2007-01-4097 2007 10.4271/2007-01-4097