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Title: The effects of oxygen-enriched intake air on FFV exhaust emissions using M85

Abstract

This paper presents results of emission tests of a flexible fuel vehicle (FFV) powered by an SI engine, fueled by M85 (methanol), and supplied with oxygen-enriched intake air containing 21, 23, and 25 vol% O2. Engine-out total hydrocarbons (THCs) and unburned methanol were considerably reduced in the entire FTP cycle when the O2 content of the intake air was either 23 or 25%. However, CO emissions did not vary much, and NOx emissions were higher. HCHO emissions were reduced by 53% in bag 1, 84% in bag 2, and 59% in bag 3 of the FTP cycle with 25% oxygen-enriched intake air. During cold-phase FTP,reductions of 42% in THCs, 40% in unburned methanol, 60% in nonmethane hydrocarbons, and 45% in nonmethane organic gases (NMOGs) were observed with 25% enriched air; NO{sub x} emissions increased by 78%. Converter-out emissions were also reduced with enriched air but to a lesser degree. FFVs operating on M85 that use 25% enriched air during only the initial 127 s of cold-phase FTP or that use 23 or 25% enriched air during only cold-phase FTP can meet the reactivity-adjusted NMOG, CO, NO{sub x}, and HCHO emission standards of the transitional low-emission vehicle.

Authors:
; ;  [1];  [2];  [3]
  1. Argonne National Lab., IL (United States)
  2. Autoresearch Labs., Inc., Chicago, IL (United States)
  3. National Renewable Energy Lab., Golden, CO (United States)
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
221904
Report Number(s):
ANL/ES/CP-89858; CONF-960518-1
ON: DE96009419
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: Society of Automobile Engineers (SAE) international Spring fuels and lubricants meeting, Dearborn, MI (United States), 6-9 May 1996; Other Information: PBD: [1996]
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 54 ENVIRONMENTAL SCIENCES; VEHICLES; FUEL SUBSTITUTION; AIR POLLUTION; METHANOL FUELS

Citation Formats

Poola, R B, Sekar, R, Ng, H K, Baudino, J H, and Colucci, C P. The effects of oxygen-enriched intake air on FFV exhaust emissions using M85. United States: N. p., 1996. Web.
Poola, R B, Sekar, R, Ng, H K, Baudino, J H, & Colucci, C P. The effects of oxygen-enriched intake air on FFV exhaust emissions using M85. United States.
Poola, R B, Sekar, R, Ng, H K, Baudino, J H, and Colucci, C P. Wed . "The effects of oxygen-enriched intake air on FFV exhaust emissions using M85". United States. https://www.osti.gov/servlets/purl/221904.
@article{osti_221904,
title = {The effects of oxygen-enriched intake air on FFV exhaust emissions using M85},
author = {Poola, R B and Sekar, R and Ng, H K and Baudino, J H and Colucci, C P},
abstractNote = {This paper presents results of emission tests of a flexible fuel vehicle (FFV) powered by an SI engine, fueled by M85 (methanol), and supplied with oxygen-enriched intake air containing 21, 23, and 25 vol% O2. Engine-out total hydrocarbons (THCs) and unburned methanol were considerably reduced in the entire FTP cycle when the O2 content of the intake air was either 23 or 25%. However, CO emissions did not vary much, and NOx emissions were higher. HCHO emissions were reduced by 53% in bag 1, 84% in bag 2, and 59% in bag 3 of the FTP cycle with 25% oxygen-enriched intake air. During cold-phase FTP,reductions of 42% in THCs, 40% in unburned methanol, 60% in nonmethane hydrocarbons, and 45% in nonmethane organic gases (NMOGs) were observed with 25% enriched air; NO{sub x} emissions increased by 78%. Converter-out emissions were also reduced with enriched air but to a lesser degree. FFVs operating on M85 that use 25% enriched air during only the initial 127 s of cold-phase FTP or that use 23 or 25% enriched air during only cold-phase FTP can meet the reactivity-adjusted NMOG, CO, NO{sub x}, and HCHO emission standards of the transitional low-emission vehicle.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {5}
}

Conference:
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