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| Title: | Evolution of carbonaceous aerosol and aerosol precursor emissions through a jet engine |
| Author (s): | Brundish, K.D. Clague, A.R. Wilson, C.W. Miake-Lye, R.C. Brown, R.C. Wormhoudt, J. Lukachko, S.P. Chobot, A.T. Yam, C.K. Waitz, I.A. Hagen, Donald Edward Schmid, Otmar Whitefield, Philip D. |
| Department/Lab Affiliations: | Chemistry Cloud & Aerosol Science Lab Environmental Research Center Physics |
| Keywords: | aerosol emissions emissions measurements gas turbine engine |
| Issue Date: | 2007 |
| Publisher: | American Institute of Aeronautics and Astronautics AIAA |
| Citation: | K.D. Brundish, A.R. Clague, C.W. Wilson, R.C. Miake-Lye, R.C. Brown, J. Wormhoudt, S.P. Lukachko, A.T. Chobot, C.K. Yam, I.A. Waitz, D.E. Hagen, O. Schmid, and P.D. Whitefield. "Evolution of Carbonaceous Aerosol and Aerosol Precursor Emissions Through a Jet Engine," Journal of Propulsion and Power, vol. 23 (5), pp. 959-970, 2007. |
| Abstract: | This study conducted during the summers of 2000 and 2001 represents the first measurement and model intercomparison that tracks detailed gaseous and aerosol emissions through a gas turbine engine. Its primary objective was to determine the impacts of engine operational state on the evolution of carbonaceous aerosol and aerosol precursors. Emissions measurements were performed at the exit of a combustor and at the exit of a full engine for a gas turbine engine typical of the in-service, commercial aircraft fleet. Measurements were compared to model simulations of changes in gaseous chemistry. As predicted by the model simulations, results show no significant modifications to the aerosol distribution along the postcombustor flowpath. The oxidation of NO to HONO was measured. Trends with engine power setting and sulfur loading were at the level of estimated uncertainty limits. Simulations of the fluid and chemical processes through the turbine and exhaust nozzle correctly captured HONO trends and matched experimental data within measurement uncertainty. This suggests that the employed modeling approach is valid for HONO chemistry, and more generally, because HONO results from NO oxidation via the hydroxyl radical, indicates the importance of OH-driven oxidation through the engine. These results indicate that the chemical and physical processes occurring in the turbine are important in determining aircraft engine emissions |
| Type: | Article - Journal text |
| In Title: | Journal of Propulsion and Power |
| Copyright Notice: | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. Pre-print: archiving status unclear; Post-print: author cannot archive; Pre-print: archiving status unclear; Post-print: author cannot archive; FULL COPYRIGHT INFORMATION: |
| Publisher URL: | |
| Link to this page: |
| title | Evolution of carbonaceous aerosol and aerosol precursor emissions through a jet engine |
| contributor.author | Brundish, K.D. |
| contributor.author | Clague, A.R. |
| contributor.author | Wilson, C.W. |
| contributor.author | Miake-Lye, R.C. |
| contributor.author | Brown, R.C. |
| contributor.author | Wormhoudt, J. |
| contributor.author | Lukachko, S.P. |
| contributor.author | Chobot, A.T. |
| contributor.author | Yam, C.K. |
| contributor.author | Waitz, I.A. |
| contributor.author | Hagen, Donald Edward |
| contributor.author | Schmid, Otmar |
| contributor.author | Whitefield, Philip D. |
| contributor.deptlab | Chemistry |
| contributor.deptlab | Cloud & Aerosol Science Lab |
| contributor.deptlab | Environmental Research Center |
| contributor.deptlab | Physics |
| subject | aerosol emissions |
| subject | emissions measurements |
| subject | gas turbine engine |
| date.issued | 2007 |
| publisher | American Institute of Aeronautics and Astronautics AIAA |
| identifier.citation | K.D. Brundish, A.R. Clague, C.W. Wilson, R.C. Miake-Lye, R.C. Brown, J. Wormhoudt, S.P. Lukachko, A.T. Chobot, C.K. Yam, I.A. Waitz, D.E. Hagen, O. Schmid, and P.D. Whitefield. "Evolution of Carbonaceous Aerosol and Aerosol Precursor Emissions Through a Jet Engine," Journal of Propulsion and Power, vol. 23 (5), pp. 959-970, 2007. |
| identifier.pub.URI | |
| description.abstract | This study conducted during the summers of 2000 and 2001 represents the first measurement and model intercomparison that tracks detailed gaseous and aerosol emissions through a gas turbine engine. Its primary objective was to determine the impacts of engine operational state on the evolution of carbonaceous aerosol and aerosol precursors. Emissions measurements were performed at the exit of a combustor and at the exit of a full engine for a gas turbine engine typical of the in-service, commercial aircraft fleet. Measurements were compared to model simulations of changes in gaseous chemistry. As predicted by the model simulations, results show no significant modifications to the aerosol distribution along the postcombustor flowpath. The oxidation of NO to HONO was measured. Trends with engine power setting and sulfur loading were at the level of estimated uncertainty limits. Simulations of the fluid and chemical processes through the turbine and exhaust nozzle correctly captured HONO trends and matched experimental data within measurement uncertainty. This suggests that the employed modeling approach is valid for HONO chemistry, and more generally, because HONO results from NO oxidation via the hydroxyl radical, indicates the importance of OH-driven oxidation through the engine. These results indicate that the chemical and physical processes occurring in the turbine are important in determining aircraft engine emissions |
| type | Article - Journal |
| type.DCMIType | text |
| rights | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| rights | Pre-print: archiving status unclear; Post-print: author cannot archive; |
| rights | Pre-print: archiving status unclear; Post-print: author cannot archive; |
| rights.URI | |
| rights.URI | |
| relation.isPartOf | Journal of Propulsion and Power |
| date.available | 2008-08-04T21:26:15Z |
| identifier.persist.URI |