Synchrotron radiation studies of additives in combustion I: Water
Small Angle X-ray Scattering (SAXS) measurements have been performed on a partially pre-mixed ethylene–air flame with and without the introduction of a water aerosol for the same flame height. Our measurements are sensitive to particles with radii in the range of 6–78 nm. It is found that water addi...
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| Veröffentlicht in: | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2010-05, Vol.268 (9), p.1486-1491 |
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| container_title | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms |
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| creator | Mitchell, J.B.A. di Stasio, S. LeGarrec, J.L. Florescu-Mitchell, A.I. |
| description | Small Angle X-ray Scattering (SAXS) measurements have been performed on a partially pre-mixed ethylene–air flame with and without the introduction of a water aerosol for the same flame height. Our measurements are sensitive to particles with radii in the range of 6–78
nm. It is found that water addition leads to soot suppression below the detection limit at low heights along the flame centerline ( |
| doi_str_mv | 10.1016/j.nimb.2010.01.002 |
| format | Article |
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nm. It is found that water addition leads to soot suppression below the detection limit at low heights along the flame centerline (<11
mm) and to an increased sooting tendency higher up in the flame. There, larger primary particles (
R
g
∼20–45
nm) shaped as agglomerates with fractal dimension about 2 are observed together with a large number of smaller (
R
g
∼
10
nm) smooth particles, which we identify with
sub-primary units observed in previous work on pure diffusion flames. In the case of the un-doped partially pre-mixed flame, however, only relatively (
R
g
∼
20–35
nm) large spherical particles (Porod’s exponent about 4) are observed. An intriguing result is that water addition induces the enhanced formation of sub-primaries, with these having more than 2 orders of magnitude higher number concentration with respect to the spherical particles in the water free flame.</description><identifier>ISSN: 0168-583X</identifier><identifier>ISSN: 1872-9584</identifier><identifier>EISSN: 1872-9584</identifier><identifier>EISSN: 0168-583X</identifier><identifier>DOI: 10.1016/j.nimb.2010.01.002</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Combustion ; Nanoparticles ; Physics ; SAXS</subject><ispartof>Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 2010-05, Vol.268 (9), p.1486-1491</ispartof><rights>2010 Elsevier B.V.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-a4fbd1b846c10f5c2b7b33c9b9ceeab9eaaa67a0865c950b7b18b124dc03f1833</citedby><cites>FETCH-LOGICAL-c334t-a4fbd1b846c10f5c2b7b33c9b9ceeab9eaaa67a0865c950b7b18b124dc03f1833</cites><orcidid>0000-0002-6753-0220</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.nimb.2010.01.002$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,315,781,785,886,3551,27929,27930,46000</link.rule.ids><backlink>$$Uhttps://hal.science/hal-00657463$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Mitchell, J.B.A.</creatorcontrib><creatorcontrib>di Stasio, S.</creatorcontrib><creatorcontrib>LeGarrec, J.L.</creatorcontrib><creatorcontrib>Florescu-Mitchell, A.I.</creatorcontrib><title>Synchrotron radiation studies of additives in combustion I: Water</title><title>Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms</title><description>Small Angle X-ray Scattering (SAXS) measurements have been performed on a partially pre-mixed ethylene–air flame with and without the introduction of a water aerosol for the same flame height. Our measurements are sensitive to particles with radii in the range of 6–78
nm. It is found that water addition leads to soot suppression below the detection limit at low heights along the flame centerline (<11
mm) and to an increased sooting tendency higher up in the flame. There, larger primary particles (
R
g
∼20–45
nm) shaped as agglomerates with fractal dimension about 2 are observed together with a large number of smaller (
R
g
∼
10
nm) smooth particles, which we identify with
sub-primary units observed in previous work on pure diffusion flames. In the case of the un-doped partially pre-mixed flame, however, only relatively (
R
g
∼
20–35
nm) large spherical particles (Porod’s exponent about 4) are observed. An intriguing result is that water addition induces the enhanced formation of sub-primaries, with these having more than 2 orders of magnitude higher number concentration with respect to the spherical particles in the water free flame.</description><subject>Combustion</subject><subject>Nanoparticles</subject><subject>Physics</subject><subject>SAXS</subject><issn>0168-583X</issn><issn>1872-9584</issn><issn>1872-9584</issn><issn>0168-583X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMoWKt_wNNePew6STa7WfFSitpCwYOK3kK-lqa0G0nSgv_erBWPzmW-3mdgXoSuMVQYcHO7qQa3UxWBPABcAZATNMG8JWXHeH2KJlnES8bpxzm6iHEDORhlEzR7-Rr0OvgU_FAEaZxMLlcx7Y2zsfB9IY1xyR1y44ZC-53axx_J8q54l8mGS3TWy220V795it4eH17ni3L1_LScz1alprROpax7ZbDidaMx9EwT1SpKdac6ba1UnZVSNq0E3jDdMchbzBUmtdFAe8wpnaKb49213IrP4HYyfAkvnVjMVmKcATSsrRt6wFlLjlodfIzB9n8ABjEaJjZiNEyMhgnAmSUZuj9CNn9xcDaIqJ0dtDUuWJ2E8e4__BuQZnRm</recordid><startdate>20100501</startdate><enddate>20100501</enddate><creator>Mitchell, J.B.A.</creator><creator>di Stasio, S.</creator><creator>LeGarrec, J.L.</creator><creator>Florescu-Mitchell, A.I.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-6753-0220</orcidid></search><sort><creationdate>20100501</creationdate><title>Synchrotron radiation studies of additives in combustion I: Water</title><author>Mitchell, J.B.A. ; di Stasio, S. ; LeGarrec, J.L. ; Florescu-Mitchell, A.I.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-a4fbd1b846c10f5c2b7b33c9b9ceeab9eaaa67a0865c950b7b18b124dc03f1833</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Combustion</topic><topic>Nanoparticles</topic><topic>Physics</topic><topic>SAXS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mitchell, J.B.A.</creatorcontrib><creatorcontrib>di Stasio, S.</creatorcontrib><creatorcontrib>LeGarrec, J.L.</creatorcontrib><creatorcontrib>Florescu-Mitchell, A.I.</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mitchell, J.B.A.</au><au>di Stasio, S.</au><au>LeGarrec, J.L.</au><au>Florescu-Mitchell, A.I.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synchrotron radiation studies of additives in combustion I: Water</atitle><jtitle>Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms</jtitle><date>2010-05-01</date><risdate>2010</risdate><volume>268</volume><issue>9</issue><spage>1486</spage><epage>1491</epage><pages>1486-1491</pages><issn>0168-583X</issn><issn>1872-9584</issn><eissn>1872-9584</eissn><eissn>0168-583X</eissn><abstract>Small Angle X-ray Scattering (SAXS) measurements have been performed on a partially pre-mixed ethylene–air flame with and without the introduction of a water aerosol for the same flame height. Our measurements are sensitive to particles with radii in the range of 6–78
nm. It is found that water addition leads to soot suppression below the detection limit at low heights along the flame centerline (<11
mm) and to an increased sooting tendency higher up in the flame. There, larger primary particles (
R
g
∼20–45
nm) shaped as agglomerates with fractal dimension about 2 are observed together with a large number of smaller (
R
g
∼
10
nm) smooth particles, which we identify with
sub-primary units observed in previous work on pure diffusion flames. In the case of the un-doped partially pre-mixed flame, however, only relatively (
R
g
∼
20–35
nm) large spherical particles (Porod’s exponent about 4) are observed. An intriguing result is that water addition induces the enhanced formation of sub-primaries, with these having more than 2 orders of magnitude higher number concentration with respect to the spherical particles in the water free flame.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.nimb.2010.01.002</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-6753-0220</orcidid></addata></record> |
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| ispartof | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 2010-05, Vol.268 (9), p.1486-1491 |
| issn | 0168-583X 1872-9584 1872-9584 0168-583X |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_00657463v1 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Combustion Nanoparticles Physics SAXS |
| title | Synchrotron radiation studies of additives in combustion I: Water |
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