Numerical simulation of a modified trapped vortex combustor
Analysing the flow inside the combustor is important for determining the performance and NOx emission of the combustors. This study investigated combustion and flow characteristics inside a modified trapped vortex combustor (TVC) to enhance the performance and reduce the NOx emission. The modified T...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2023-04, Vol.148 (8), p.3129-3135 |
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| container_title | Journal of thermal analysis and calorimetry |
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| creator | Selvam, Dharsannen Sri Rahim, Norwazan Abdul Saad, Mohd Rashdan Syawal, Syahar Faizal, Hasan Mohd Rahman, Mohd Rosdzimin Abdul |
| description | Analysing the flow inside the combustor is important for determining the performance and NOx emission of the combustors. This study investigated combustion and flow characteristics inside a modified trapped vortex combustor (TVC) to enhance the performance and reduce the NOx emission. The modified TVC was characterised by a variable guide vane ratio between length of column guide vane inside cavity and height of the cavity. The effect of the incoming velocity was analysed. The Arrhenius rate of the one-step methane/air reaction mechanism was used. Validation of the study results was performed by comparing the present numerical results with the published experimental results. Numerical results demonstrated significant changes in the vortex inside the cavity after introducing the guide vane. Furthermore, variable guide vane ratio was found to have a significant effect on temperature, NOx emission, and combustion efficiency with reduction of 5, 90, and 2%, respectively, at guide vane ratio 0.75. The guide vane ratio of 0.5 was found to be the cutoff design for the current TVC model. Increasing the guide vane ratio larger than 0.5 was found to reduce the NOx emission but needed to compensate with drop of the combustion efficiency. This study has improved the understanding of the effect of the guide vane on the development of a high-efficiency low-NOx TVC. |
| doi_str_mv | 10.1007/s10973-022-11382-9 |
| format | Article |
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This study investigated combustion and flow characteristics inside a modified trapped vortex combustor (TVC) to enhance the performance and reduce the NOx emission. The modified TVC was characterised by a variable guide vane ratio between length of column guide vane inside cavity and height of the cavity. The effect of the incoming velocity was analysed. The Arrhenius rate of the one-step methane/air reaction mechanism was used. Validation of the study results was performed by comparing the present numerical results with the published experimental results. Numerical results demonstrated significant changes in the vortex inside the cavity after introducing the guide vane. Furthermore, variable guide vane ratio was found to have a significant effect on temperature, NOx emission, and combustion efficiency with reduction of 5, 90, and 2%, respectively, at guide vane ratio 0.75. The guide vane ratio of 0.5 was found to be the cutoff design for the current TVC model. Increasing the guide vane ratio larger than 0.5 was found to reduce the NOx emission but needed to compensate with drop of the combustion efficiency. This study has improved the understanding of the effect of the guide vane on the development of a high-efficiency low-NOx TVC.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>DOI: 10.1007/s10973-022-11382-9</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Analysis ; Analytical Chemistry ; Chemistry ; Chemistry and Materials Science ; Combustion ; Combustion chambers ; Combustion efficiency ; Efficiency ; Emission analysis ; Emissions ; Emissions control ; Flow characteristics ; Fluid dynamics ; Fluid flow ; Guide vanes ; Inorganic Chemistry ; Mathematical models ; Measurement Science and Instrumentation ; Nitrogen oxide ; Nitrogen oxides ; Numerical analysis ; Physical Chemistry ; Polymer Sciences ; Reaction mechanisms ; Simulation methods ; Temperature effects ; Trapped vortices ; Vortices</subject><ispartof>Journal of thermal analysis and calorimetry, 2023-04, Vol.148 (8), p.3129-3135</ispartof><rights>Akadémiai Kiadó, Budapest, Hungary 2022</rights><rights>COPYRIGHT 2023 Springer</rights><rights>Akadémiai Kiadó, Budapest, Hungary 2022.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-787ef364ffd7200d56284eb5287c80a827a8c90476cab30b50ca6c4f7740d0a73</citedby><cites>FETCH-LOGICAL-c392t-787ef364ffd7200d56284eb5287c80a827a8c90476cab30b50ca6c4f7740d0a73</cites><orcidid>0000-0001-9025-0414</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10973-022-11382-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10973-022-11382-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids></links><search><creatorcontrib>Selvam, Dharsannen Sri</creatorcontrib><creatorcontrib>Rahim, Norwazan Abdul</creatorcontrib><creatorcontrib>Saad, Mohd Rashdan</creatorcontrib><creatorcontrib>Syawal, Syahar</creatorcontrib><creatorcontrib>Faizal, Hasan Mohd</creatorcontrib><creatorcontrib>Rahman, Mohd Rosdzimin Abdul</creatorcontrib><title>Numerical simulation of a modified trapped vortex combustor</title><title>Journal of thermal analysis and calorimetry</title><addtitle>J Therm Anal Calorim</addtitle><description>Analysing the flow inside the combustor is important for determining the performance and NOx emission of the combustors. This study investigated combustion and flow characteristics inside a modified trapped vortex combustor (TVC) to enhance the performance and reduce the NOx emission. The modified TVC was characterised by a variable guide vane ratio between length of column guide vane inside cavity and height of the cavity. The effect of the incoming velocity was analysed. The Arrhenius rate of the one-step methane/air reaction mechanism was used. Validation of the study results was performed by comparing the present numerical results with the published experimental results. Numerical results demonstrated significant changes in the vortex inside the cavity after introducing the guide vane. Furthermore, variable guide vane ratio was found to have a significant effect on temperature, NOx emission, and combustion efficiency with reduction of 5, 90, and 2%, respectively, at guide vane ratio 0.75. The guide vane ratio of 0.5 was found to be the cutoff design for the current TVC model. Increasing the guide vane ratio larger than 0.5 was found to reduce the NOx emission but needed to compensate with drop of the combustion efficiency. This study has improved the understanding of the effect of the guide vane on the development of a high-efficiency low-NOx TVC.</description><subject>Analysis</subject><subject>Analytical Chemistry</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Combustion</subject><subject>Combustion chambers</subject><subject>Combustion efficiency</subject><subject>Efficiency</subject><subject>Emission analysis</subject><subject>Emissions</subject><subject>Emissions control</subject><subject>Flow characteristics</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Guide vanes</subject><subject>Inorganic Chemistry</subject><subject>Mathematical models</subject><subject>Measurement Science and Instrumentation</subject><subject>Nitrogen oxide</subject><subject>Nitrogen oxides</subject><subject>Numerical analysis</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Reaction mechanisms</subject><subject>Simulation methods</subject><subject>Temperature effects</subject><subject>Trapped vortices</subject><subject>Vortices</subject><issn>1388-6150</issn><issn>1588-2926</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kU1LxDAQhosouK7-AU8FTx66TpK2SfC0LH4sLAp-nEOaJkuWtqlJK_rvjVaQvUgOM4TnmUx4k-QcwQIB0KuAgFOSAcYZQoThjB8kM1QwlmGOy8PYk9iXqIDj5CSEHQBwDmiWXD-MrfZWySYNth0bOVjXpc6kMm1dbY3VdTp42fexvjs_6I9UubYaw-D8aXJkZBP02W-dJ6-3Ny-r-2zzeLdeLTeZIhwPGWVUG1LmxtQUA9RFiVmuqwIzqhhIhqlkikNOSyUrAlUBSpYqN5TmUIOkZJ5cTHN7795GHQaxc6Pv4pMCU1ZwhHlRRmoxUVvZaGE74-LeKp5at1a5Thsb75dxKOOUIRKFyz0hMvF7w1aOIYj189M-iydWeReC10b03rbSfwoE4jsBMSUgYgLiJwHBo0QmKUS422r_t_c_1hdYO4bq</recordid><startdate>20230401</startdate><enddate>20230401</enddate><creator>Selvam, Dharsannen Sri</creator><creator>Rahim, Norwazan Abdul</creator><creator>Saad, Mohd Rashdan</creator><creator>Syawal, Syahar</creator><creator>Faizal, Hasan Mohd</creator><creator>Rahman, Mohd Rosdzimin Abdul</creator><general>Springer International Publishing</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><orcidid>https://orcid.org/0000-0001-9025-0414</orcidid></search><sort><creationdate>20230401</creationdate><title>Numerical simulation of a modified trapped vortex combustor</title><author>Selvam, Dharsannen Sri ; Rahim, Norwazan Abdul ; Saad, Mohd Rashdan ; Syawal, Syahar ; Faizal, Hasan Mohd ; Rahman, Mohd Rosdzimin Abdul</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-787ef364ffd7200d56284eb5287c80a827a8c90476cab30b50ca6c4f7740d0a73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Analysis</topic><topic>Analytical Chemistry</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Combustion</topic><topic>Combustion chambers</topic><topic>Combustion efficiency</topic><topic>Efficiency</topic><topic>Emission analysis</topic><topic>Emissions</topic><topic>Emissions control</topic><topic>Flow characteristics</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Guide vanes</topic><topic>Inorganic Chemistry</topic><topic>Mathematical models</topic><topic>Measurement Science and Instrumentation</topic><topic>Nitrogen oxide</topic><topic>Nitrogen oxides</topic><topic>Numerical analysis</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><topic>Reaction mechanisms</topic><topic>Simulation methods</topic><topic>Temperature effects</topic><topic>Trapped vortices</topic><topic>Vortices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Selvam, Dharsannen Sri</creatorcontrib><creatorcontrib>Rahim, Norwazan Abdul</creatorcontrib><creatorcontrib>Saad, Mohd Rashdan</creatorcontrib><creatorcontrib>Syawal, Syahar</creatorcontrib><creatorcontrib>Faizal, Hasan Mohd</creatorcontrib><creatorcontrib>Rahman, Mohd Rosdzimin Abdul</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Selvam, Dharsannen Sri</au><au>Rahim, Norwazan Abdul</au><au>Saad, Mohd Rashdan</au><au>Syawal, Syahar</au><au>Faizal, Hasan Mohd</au><au>Rahman, Mohd Rosdzimin Abdul</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical simulation of a modified trapped vortex combustor</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2023-04-01</date><risdate>2023</risdate><volume>148</volume><issue>8</issue><spage>3129</spage><epage>3135</epage><pages>3129-3135</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><abstract>Analysing the flow inside the combustor is important for determining the performance and NOx emission of the combustors. This study investigated combustion and flow characteristics inside a modified trapped vortex combustor (TVC) to enhance the performance and reduce the NOx emission. The modified TVC was characterised by a variable guide vane ratio between length of column guide vane inside cavity and height of the cavity. The effect of the incoming velocity was analysed. The Arrhenius rate of the one-step methane/air reaction mechanism was used. Validation of the study results was performed by comparing the present numerical results with the published experimental results. Numerical results demonstrated significant changes in the vortex inside the cavity after introducing the guide vane. Furthermore, variable guide vane ratio was found to have a significant effect on temperature, NOx emission, and combustion efficiency with reduction of 5, 90, and 2%, respectively, at guide vane ratio 0.75. The guide vane ratio of 0.5 was found to be the cutoff design for the current TVC model. Increasing the guide vane ratio larger than 0.5 was found to reduce the NOx emission but needed to compensate with drop of the combustion efficiency. This study has improved the understanding of the effect of the guide vane on the development of a high-efficiency low-NOx TVC.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s10973-022-11382-9</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0001-9025-0414</orcidid></addata></record> |
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| subjects | Analysis Analytical Chemistry Chemistry Chemistry and Materials Science Combustion Combustion chambers Combustion efficiency Efficiency Emission analysis Emissions Emissions control Flow characteristics Fluid dynamics Fluid flow Guide vanes Inorganic Chemistry Mathematical models Measurement Science and Instrumentation Nitrogen oxide Nitrogen oxides Numerical analysis Physical Chemistry Polymer Sciences Reaction mechanisms Simulation methods Temperature effects Trapped vortices Vortices |
| title | Numerical simulation of a modified trapped vortex combustor |
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