Study of using oxygen-enriched combustion air for locomotive diesel engines
Abstract
A thermodynamic simulation is used to study effects of O2-enriched intake air on performance and NO emissions of a locomotive diesel engine. Parasitic power of the air separation membrane required to supply the O2-enriched air is also estimated. For a given constraint on peak cylinder pressure, gross and net power output of an engine operating under different levels of O2 enrichment are compared with those obtained when a high-boost turbocharged engine is used. A 4% increase in peak cylinder pressure can result in 13% increase in net engine power when intake air with 28 vol% O2 is used and fuel injection timing retarded by 4 degrees. When the engine is turbocharged to a higher inlet boost, the same increase in peak cylinder pressure can result in only 4% improvement in power. If part of the higher exhaust enthalpies from the O2 enrichment is recovered, the power requirements of the air separator membrane can be met. O2 enrichment with its higher combustion temperatures reduces emissions of particulates and visible smoke but increases NO emissions (by up to 3 times at 26% O2 content). Therefore, exhaust gas after-treatment and heat recovery would be required if the full potential of O2 enrichment formore »
- Authors:
-
- Argonne National Lab., IL (United States)
- Michigan Univ., Ann Arbor, MI (United States)
- Association of American Railroads, Washington, DC (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 392758
- Report Number(s):
- ANL/ES/CP-90529; CONF-961017-7
ON: DE96015072
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Conference
- Resource Relation:
- Conference: American Society of Mechanical Engineers (ASME) and Metals materials week, Cincinnati, OH (United States), 6-10 Oct 1996; Other Information: PBD: [1996]
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 54 ENVIRONMENTAL SCIENCES; LOCOMOTIVES; DIESEL ENGINES; PERFORMANCE; AIR POLLUTION; NITRIC OXIDE; OXYGEN ENRICHMENT; FUEL INJECTION SYSTEMS
Citation Formats
Poola, R B, Sekar, R, Assanis, D N, and Cataldi, G R. Study of using oxygen-enriched combustion air for locomotive diesel engines. United States: N. p., 1996.
Web. doi:10.2172/399725.
Poola, R B, Sekar, R, Assanis, D N, & Cataldi, G R. Study of using oxygen-enriched combustion air for locomotive diesel engines. United States. https://doi.org/10.2172/399725
Poola, R B, Sekar, R, Assanis, D N, and Cataldi, G R. 1996.
"Study of using oxygen-enriched combustion air for locomotive diesel engines". United States. https://doi.org/10.2172/399725. https://www.osti.gov/servlets/purl/392758.
@article{osti_392758,
title = {Study of using oxygen-enriched combustion air for locomotive diesel engines},
author = {Poola, R B and Sekar, R and Assanis, D N and Cataldi, G R},
abstractNote = {A thermodynamic simulation is used to study effects of O2-enriched intake air on performance and NO emissions of a locomotive diesel engine. Parasitic power of the air separation membrane required to supply the O2-enriched air is also estimated. For a given constraint on peak cylinder pressure, gross and net power output of an engine operating under different levels of O2 enrichment are compared with those obtained when a high-boost turbocharged engine is used. A 4% increase in peak cylinder pressure can result in 13% increase in net engine power when intake air with 28 vol% O2 is used and fuel injection timing retarded by 4 degrees. When the engine is turbocharged to a higher inlet boost, the same increase in peak cylinder pressure can result in only 4% improvement in power. If part of the higher exhaust enthalpies from the O2 enrichment is recovered, the power requirements of the air separator membrane can be met. O2 enrichment with its higher combustion temperatures reduces emissions of particulates and visible smoke but increases NO emissions (by up to 3 times at 26% O2 content). Therefore, exhaust gas after-treatment and heat recovery would be required if the full potential of O2 enrichment for improving the performance of locomotive diesel engines is to be realized.},
doi = {10.2172/399725},
url = {https://www.osti.gov/biblio/392758},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 01 00:00:00 EDT 1996},
month = {Tue Oct 01 00:00:00 EDT 1996}
}