Simulation study on combustion system of tankless gas water heater
This paper simulates the combustion system of a regular tankless gas water heater under different static pressure conditions. The simulation results are in accordance with the test results. It proves that the used physical and mathematical models are reasonable. The results show that the flame heigh...
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| Veröffentlicht in: | Dong nan da xue xue bao 2010-06, Vol.26 (2), p.187-191 |
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| container_title | Dong nan da xue xue bao |
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| creator | Qiu, Bu Zhang, Xiaosong Dou, Liliang |
| description | This paper simulates the combustion system of a regular tankless gas water heater under different static pressure conditions. The simulation results are in accordance with the test results. It proves that the used physical and mathematical models are reasonable. The results show that the flame height and the excess air ratios depend on the system pressure drop but not on the absolute pressure at the combustion chamber. The pressure drop and the amount of combustion air have an inverse relationship with CO generation, and they also impact on the temperature and velocity fields. To reduce CO emission, a stronger fan is needed to provide extra pressure head to ensure that enough combustion air is introduced into the system. This study provides a useful research tool to develop products through computational fluid dynamic analysis and laboratory testing. |
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The simulation results are in accordance with the test results. It proves that the used physical and mathematical models are reasonable. The results show that the flame height and the excess air ratios depend on the system pressure drop but not on the absolute pressure at the combustion chamber. The pressure drop and the amount of combustion air have an inverse relationship with CO generation, and they also impact on the temperature and velocity fields. To reduce CO emission, a stronger fan is needed to provide extra pressure head to ensure that enough combustion air is introduced into the system. This study provides a useful research tool to develop products through computational fluid dynamic analysis and laboratory testing.</description><identifier>ISSN: 1003-7985</identifier><language>eng</language><subject>Carbon monoxide ; Combustion ; Combustion chambers ; Computational fluid dynamics ; Computer simulation ; Dynamical systems ; Dynamics ; Emissions control ; Inverse ; Mathematical models ; Pressure ; Pressure drop ; Pressure head ; Static pressure ; Water heaters</subject><ispartof>Dong nan da xue xue bao, 2010-06, Vol.26 (2), p.187-191</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784</link.rule.ids></links><search><creatorcontrib>Qiu, Bu</creatorcontrib><creatorcontrib>Zhang, Xiaosong</creatorcontrib><creatorcontrib>Dou, Liliang</creatorcontrib><title>Simulation study on combustion system of tankless gas water heater</title><title>Dong nan da xue xue bao</title><description>This paper simulates the combustion system of a regular tankless gas water heater under different static pressure conditions. The simulation results are in accordance with the test results. It proves that the used physical and mathematical models are reasonable. The results show that the flame height and the excess air ratios depend on the system pressure drop but not on the absolute pressure at the combustion chamber. The pressure drop and the amount of combustion air have an inverse relationship with CO generation, and they also impact on the temperature and velocity fields. To reduce CO emission, a stronger fan is needed to provide extra pressure head to ensure that enough combustion air is introduced into the system. This study provides a useful research tool to develop products through computational fluid dynamic analysis and laboratory testing.</description><subject>Carbon monoxide</subject><subject>Combustion</subject><subject>Combustion chambers</subject><subject>Computational fluid dynamics</subject><subject>Computer simulation</subject><subject>Dynamical systems</subject><subject>Dynamics</subject><subject>Emissions control</subject><subject>Inverse</subject><subject>Mathematical models</subject><subject>Pressure</subject><subject>Pressure drop</subject><subject>Pressure head</subject><subject>Static pressure</subject><subject>Water heaters</subject><issn>1003-7985</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNotjLtOwzAUQD2ARCn8gzemSH7FjxEqXlKlDsBcXSc3EHDi0msL9e8pKtM5OsM5YwsphG5c8O0FuyT6FMIIbeyC3b2MU01QxjxzKrU_8KN0eYqVTu1ABSeeB15g_kpIxN-B-A8U3PMP_MMVOx8gEV7_c8neHu5fV0_NevP4vLpdNzspVGmkN6AFYux6qaQaYm-DNU4bCCECeIGtkxaV1FoK53wHEIT2OPgIUgenl-zm9N3t83dFKttppA5Tghlzpa3zTrW2PQ5-AUuYRxU</recordid><startdate>20100601</startdate><enddate>20100601</enddate><creator>Qiu, Bu</creator><creator>Zhang, Xiaosong</creator><creator>Dou, Liliang</creator><scope>7SC</scope><scope>7SP</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20100601</creationdate><title>Simulation study on combustion system of tankless gas water heater</title><author>Qiu, Bu ; Zhang, Xiaosong ; Dou, Liliang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p102t-184a30eebcd1212fbd6964734a99baa80e5716e213310778caa9038ef8ba13973</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Carbon monoxide</topic><topic>Combustion</topic><topic>Combustion chambers</topic><topic>Computational fluid dynamics</topic><topic>Computer simulation</topic><topic>Dynamical systems</topic><topic>Dynamics</topic><topic>Emissions control</topic><topic>Inverse</topic><topic>Mathematical models</topic><topic>Pressure</topic><topic>Pressure drop</topic><topic>Pressure head</topic><topic>Static pressure</topic><topic>Water heaters</topic><toplevel>online_resources</toplevel><creatorcontrib>Qiu, Bu</creatorcontrib><creatorcontrib>Zhang, Xiaosong</creatorcontrib><creatorcontrib>Dou, Liliang</creatorcontrib><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Dong nan da xue xue bao</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qiu, Bu</au><au>Zhang, Xiaosong</au><au>Dou, Liliang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Simulation study on combustion system of tankless gas water heater</atitle><jtitle>Dong nan da xue xue bao</jtitle><date>2010-06-01</date><risdate>2010</risdate><volume>26</volume><issue>2</issue><spage>187</spage><epage>191</epage><pages>187-191</pages><issn>1003-7985</issn><abstract>This paper simulates the combustion system of a regular tankless gas water heater under different static pressure conditions. The simulation results are in accordance with the test results. It proves that the used physical and mathematical models are reasonable. The results show that the flame height and the excess air ratios depend on the system pressure drop but not on the absolute pressure at the combustion chamber. The pressure drop and the amount of combustion air have an inverse relationship with CO generation, and they also impact on the temperature and velocity fields. To reduce CO emission, a stronger fan is needed to provide extra pressure head to ensure that enough combustion air is introduced into the system. This study provides a useful research tool to develop products through computational fluid dynamic analysis and laboratory testing.</abstract><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1003-7985 |
| ispartof | Dong nan da xue xue bao, 2010-06, Vol.26 (2), p.187-191 |
| issn | 1003-7985 |
| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Carbon monoxide Combustion Combustion chambers Computational fluid dynamics Computer simulation Dynamical systems Dynamics Emissions control Inverse Mathematical models Pressure Pressure drop Pressure head Static pressure Water heaters |
| title | Simulation study on combustion system of tankless gas water heater |
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