Measurements of droplets characteristics in a swirl-stabilized spray flame
Experiments have been performed in a kerosene airblast atomized spray flame where the fuel supply is sandwiched between two coswirling air streams. A phase-Doppler particle sizing system was used to measure fuel droplet size, velocity and turbulent kinetic energy of droplets and gas as well as the f...
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| Veröffentlicht in: | Experimental thermal and fluid science 2005-11, Vol.30 (2), p.117-130 |
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| creator | Hadef, R. Lenze, B. |
| description | Experiments have been performed in a kerosene airblast atomized spray flame where the fuel supply is sandwiched between two coswirling air streams. A phase-Doppler particle sizing system was used to measure fuel droplet size, velocity and turbulent kinetic energy of droplets and gas as well as the fuel volume flux within the combustor for two values of air preheat temperature, 200
°C and 400
°C. The results reveal that a small liquid fuel exists in the centre of the combustor and due to larger droplets with the swirl effect; the droplets characteristics (velocity and turbulent kinetic energy) did not follow the gas ones. Based upon these measurements, an optimum swirl number will exist with every atomization and burner arrangement of a liquid-fuelled flame associated and will be different from that associated with the corresponding gas-fuelled flame. The investigated atomizer shows a marked influence of the inlet air temperature on the measured droplet size which may be attributed to the design of the internal airflow, promoting prompt atomization at the dominant atomization mode. |
| doi_str_mv | 10.1016/j.expthermflusci.2005.05.002 |
| format | Article |
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°C and 400
°C. The results reveal that a small liquid fuel exists in the centre of the combustor and due to larger droplets with the swirl effect; the droplets characteristics (velocity and turbulent kinetic energy) did not follow the gas ones. Based upon these measurements, an optimum swirl number will exist with every atomization and burner arrangement of a liquid-fuelled flame associated and will be different from that associated with the corresponding gas-fuelled flame. The investigated atomizer shows a marked influence of the inlet air temperature on the measured droplet size which may be attributed to the design of the internal airflow, promoting prompt atomization at the dominant atomization mode.</description><identifier>ISSN: 0894-1777</identifier><identifier>EISSN: 1879-2286</identifier><identifier>DOI: 10.1016/j.expthermflusci.2005.05.002</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>02 PETROLEUM ; AIR ; Airblast ; Applied sciences ; ATOMIZATION ; COMBUSTION ; Combustion of liquid fuels ; Combustion. Flame ; DROPLETS ; Energy ; Energy. Thermal use of fuels ; Exact sciences and technology ; KEROSENE ; KINETIC ENERGY ; Phase-Doppler anemometry ; SIZE ; Spray flame ; Swirl ; TEMPERATURE DEPENDENCE ; TEMPERATURE RANGE 0400-1000 K ; Theoretical studies. Data and constants. Metering ; VELOCITY ; VORTEX FLOW</subject><ispartof>Experimental thermal and fluid science, 2005-11, Vol.30 (2), p.117-130</ispartof><rights>2005 Elsevier Inc.</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c450t-4e25145f055438b189f83cef6be73d254bb1f2b67547032d117b44494ea349a73</citedby><cites>FETCH-LOGICAL-c450t-4e25145f055438b189f83cef6be73d254bb1f2b67547032d117b44494ea349a73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.expthermflusci.2005.05.002$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,780,784,885,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17442312$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/20677740$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Hadef, R.</creatorcontrib><creatorcontrib>Lenze, B.</creatorcontrib><title>Measurements of droplets characteristics in a swirl-stabilized spray flame</title><title>Experimental thermal and fluid science</title><description>Experiments have been performed in a kerosene airblast atomized spray flame where the fuel supply is sandwiched between two coswirling air streams. A phase-Doppler particle sizing system was used to measure fuel droplet size, velocity and turbulent kinetic energy of droplets and gas as well as the fuel volume flux within the combustor for two values of air preheat temperature, 200
°C and 400
°C. The results reveal that a small liquid fuel exists in the centre of the combustor and due to larger droplets with the swirl effect; the droplets characteristics (velocity and turbulent kinetic energy) did not follow the gas ones. Based upon these measurements, an optimum swirl number will exist with every atomization and burner arrangement of a liquid-fuelled flame associated and will be different from that associated with the corresponding gas-fuelled flame. The investigated atomizer shows a marked influence of the inlet air temperature on the measured droplet size which may be attributed to the design of the internal airflow, promoting prompt atomization at the dominant atomization mode.</description><subject>02 PETROLEUM</subject><subject>AIR</subject><subject>Airblast</subject><subject>Applied sciences</subject><subject>ATOMIZATION</subject><subject>COMBUSTION</subject><subject>Combustion of liquid fuels</subject><subject>Combustion. Flame</subject><subject>DROPLETS</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Exact sciences and technology</subject><subject>KEROSENE</subject><subject>KINETIC ENERGY</subject><subject>Phase-Doppler anemometry</subject><subject>SIZE</subject><subject>Spray flame</subject><subject>Swirl</subject><subject>TEMPERATURE DEPENDENCE</subject><subject>TEMPERATURE RANGE 0400-1000 K</subject><subject>Theoretical studies. Data and constants. 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Flame</topic><topic>DROPLETS</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Exact sciences and technology</topic><topic>KEROSENE</topic><topic>KINETIC ENERGY</topic><topic>Phase-Doppler anemometry</topic><topic>SIZE</topic><topic>Spray flame</topic><topic>Swirl</topic><topic>TEMPERATURE DEPENDENCE</topic><topic>TEMPERATURE RANGE 0400-1000 K</topic><topic>Theoretical studies. Data and constants. Metering</topic><topic>VELOCITY</topic><topic>VORTEX FLOW</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hadef, R.</creatorcontrib><creatorcontrib>Lenze, B.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Experimental thermal and fluid science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hadef, R.</au><au>Lenze, B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurements of droplets characteristics in a swirl-stabilized spray flame</atitle><jtitle>Experimental thermal and fluid science</jtitle><date>2005-11-01</date><risdate>2005</risdate><volume>30</volume><issue>2</issue><spage>117</spage><epage>130</epage><pages>117-130</pages><issn>0894-1777</issn><eissn>1879-2286</eissn><abstract>Experiments have been performed in a kerosene airblast atomized spray flame where the fuel supply is sandwiched between two coswirling air streams. A phase-Doppler particle sizing system was used to measure fuel droplet size, velocity and turbulent kinetic energy of droplets and gas as well as the fuel volume flux within the combustor for two values of air preheat temperature, 200
°C and 400
°C. The results reveal that a small liquid fuel exists in the centre of the combustor and due to larger droplets with the swirl effect; the droplets characteristics (velocity and turbulent kinetic energy) did not follow the gas ones. Based upon these measurements, an optimum swirl number will exist with every atomization and burner arrangement of a liquid-fuelled flame associated and will be different from that associated with the corresponding gas-fuelled flame. The investigated atomizer shows a marked influence of the inlet air temperature on the measured droplet size which may be attributed to the design of the internal airflow, promoting prompt atomization at the dominant atomization mode.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><doi>10.1016/j.expthermflusci.2005.05.002</doi><tpages>14</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0894-1777 |
| ispartof | Experimental thermal and fluid science, 2005-11, Vol.30 (2), p.117-130 |
| issn | 0894-1777 1879-2286 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | 02 PETROLEUM AIR Airblast Applied sciences ATOMIZATION COMBUSTION Combustion of liquid fuels Combustion. Flame DROPLETS Energy Energy. Thermal use of fuels Exact sciences and technology KEROSENE KINETIC ENERGY Phase-Doppler anemometry SIZE Spray flame Swirl TEMPERATURE DEPENDENCE TEMPERATURE RANGE 0400-1000 K Theoretical studies. Data and constants. Metering VELOCITY VORTEX FLOW |
| title | Measurements of droplets characteristics in a swirl-stabilized spray flame |
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