The effect of central air flow on inverse diffusion flame height in atmospheric environment
An experimental investigation was performed to study the effect of the central air flow on the turbulent inverse diffusion flame height. The study conducted a series of experiments using two coaxial burners with different nozzle sizes in the atmospheric environment. The experimental results show tha...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2024-03, Vol.149 (5), p.2209-2215 |
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| container_title | Journal of thermal analysis and calorimetry |
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| creator | Meng, Shun Lu, Zhengkang Gao, Yuke Tao, Changfa He, Peixiang Qian, Yejian Liu, Yongqiang |
| description | An experimental investigation was performed to study the effect of the central air flow on the turbulent inverse diffusion flame height. The study conducted a series of experiments using two coaxial burners with different nozzle sizes in the atmospheric environment. The experimental results show that the central air flow influences the mixing process between the air/fuel jets and the flame morphology. The inverse diffusion flame height decreased with the increase in air flow rate under the same heat release rate due to the strengthening of air/fuel mixing. The flame height decreases sharply when the air flow is turbulence flow. The air–fuel momentum ratio was found to estimate the inverse diffusion flame height. The momentum flux and buoyancy flux of inverse diffusion flame have been analyzed. Considering the combinational effect of momentum flux and buoyancy flux on the inverse diffusion flame, a new correlation between the inverse diffusion flame height, air flow rate, and heat release rate has been established which provides a valuable resource for designing the inverse diffusion flame burners. |
| doi_str_mv | 10.1007/s10973-023-12797-8 |
| format | Article |
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The study conducted a series of experiments using two coaxial burners with different nozzle sizes in the atmospheric environment. The experimental results show that the central air flow influences the mixing process between the air/fuel jets and the flame morphology. The inverse diffusion flame height decreased with the increase in air flow rate under the same heat release rate due to the strengthening of air/fuel mixing. The flame height decreases sharply when the air flow is turbulence flow. The air–fuel momentum ratio was found to estimate the inverse diffusion flame height. The momentum flux and buoyancy flux of inverse diffusion flame have been analyzed. Considering the combinational effect of momentum flux and buoyancy flux on the inverse diffusion flame, a new correlation between the inverse diffusion flame height, air flow rate, and heat release rate has been established which provides a valuable resource for designing the inverse diffusion flame burners.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>DOI: 10.1007/s10973-023-12797-8</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Air flow ; Air-fuel mixing ; Analytical Chemistry ; Buoyancy ; Chemistry ; Chemistry and Materials Science ; Diffusion rate ; Flow velocity ; Fuels ; Heat release rate ; Inorganic Chemistry ; Measurement Science and Instrumentation ; Momentum ; Physical Chemistry ; Polymer Sciences ; Turbulence</subject><ispartof>Journal of thermal analysis and calorimetry, 2024-03, Vol.149 (5), p.2209-2215</ispartof><rights>Akadémiai Kiadó, Budapest, Hungary 2024. 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Considering the combinational effect of momentum flux and buoyancy flux on the inverse diffusion flame, a new correlation between the inverse diffusion flame height, air flow rate, and heat release rate has been established which provides a valuable resource for designing the inverse diffusion flame burners.</description><subject>Air flow</subject><subject>Air-fuel mixing</subject><subject>Analytical Chemistry</subject><subject>Buoyancy</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Diffusion rate</subject><subject>Flow velocity</subject><subject>Fuels</subject><subject>Heat release rate</subject><subject>Inorganic Chemistry</subject><subject>Measurement Science and Instrumentation</subject><subject>Momentum</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Turbulence</subject><issn>1388-6150</issn><issn>1588-2926</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEUhYMoWKt_wFXA9Wgek0mylOILBDd15SJM0ptOysykJtOK_95oBXeu7uHec86FD6FLSq4pIfImU6IlrwjjFWVSy0odoRkVSlVMs-a4aF50QwU5RWc5bwghWhM6Q2_LDjB4D27C0WMH45TaHrchYd_HDxxHHMY9pAx4Fbzf5VA2vm8HwB2EdTeVM26nIeZtByk4DOM-pDgOpegcnfi2z3DxO-fo9f5uuXisnl8enha3z5VjkkyVcEr71lmhtaiLhBWxUnFb10paa5mUVgCznDWSCGKdZNqvau61VLLWNeVzdHXo3ab4voM8mU3cpbG8NExzyYVUDS8udnC5FHNO4M02haFNn4YS8w3RHCCaAtH8QDSqhPghlIt5XEP6q_4n9QXoZHT3</recordid><startdate>20240301</startdate><enddate>20240301</enddate><creator>Meng, Shun</creator><creator>Lu, Zhengkang</creator><creator>Gao, Yuke</creator><creator>Tao, Changfa</creator><creator>He, Peixiang</creator><creator>Qian, Yejian</creator><creator>Liu, Yongqiang</creator><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0003-1983-1675</orcidid></search><sort><creationdate>20240301</creationdate><title>The effect of central air flow on inverse diffusion flame height in atmospheric environment</title><author>Meng, Shun ; Lu, Zhengkang ; Gao, Yuke ; Tao, Changfa ; He, Peixiang ; Qian, Yejian ; Liu, Yongqiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c270t-5c89facb5995489fed0b783b4487bbb277b5e2b3267050bc729fd43f978749413</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Air flow</topic><topic>Air-fuel mixing</topic><topic>Analytical Chemistry</topic><topic>Buoyancy</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Diffusion rate</topic><topic>Flow velocity</topic><topic>Fuels</topic><topic>Heat release rate</topic><topic>Inorganic Chemistry</topic><topic>Measurement Science and Instrumentation</topic><topic>Momentum</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><topic>Turbulence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Meng, Shun</creatorcontrib><creatorcontrib>Lu, Zhengkang</creatorcontrib><creatorcontrib>Gao, Yuke</creatorcontrib><creatorcontrib>Tao, Changfa</creatorcontrib><creatorcontrib>He, Peixiang</creatorcontrib><creatorcontrib>Qian, Yejian</creatorcontrib><creatorcontrib>Liu, Yongqiang</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Meng, Shun</au><au>Lu, Zhengkang</au><au>Gao, Yuke</au><au>Tao, Changfa</au><au>He, Peixiang</au><au>Qian, Yejian</au><au>Liu, Yongqiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of central air flow on inverse diffusion flame height in atmospheric environment</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2024-03-01</date><risdate>2024</risdate><volume>149</volume><issue>5</issue><spage>2209</spage><epage>2215</epage><pages>2209-2215</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><abstract>An experimental investigation was performed to study the effect of the central air flow on the turbulent inverse diffusion flame height. The study conducted a series of experiments using two coaxial burners with different nozzle sizes in the atmospheric environment. The experimental results show that the central air flow influences the mixing process between the air/fuel jets and the flame morphology. The inverse diffusion flame height decreased with the increase in air flow rate under the same heat release rate due to the strengthening of air/fuel mixing. The flame height decreases sharply when the air flow is turbulence flow. The air–fuel momentum ratio was found to estimate the inverse diffusion flame height. The momentum flux and buoyancy flux of inverse diffusion flame have been analyzed. Considering the combinational effect of momentum flux and buoyancy flux on the inverse diffusion flame, a new correlation between the inverse diffusion flame height, air flow rate, and heat release rate has been established which provides a valuable resource for designing the inverse diffusion flame burners.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s10973-023-12797-8</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-1983-1675</orcidid></addata></record> |
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| subjects | Air flow Air-fuel mixing Analytical Chemistry Buoyancy Chemistry Chemistry and Materials Science Diffusion rate Flow velocity Fuels Heat release rate Inorganic Chemistry Measurement Science and Instrumentation Momentum Physical Chemistry Polymer Sciences Turbulence |
| title | The effect of central air flow on inverse diffusion flame height in atmospheric environment |
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