Effect of the setting angle of a low-solidity vaned diffuser on the performance of a centrifugal compressor stage
Abstract The present investigation is undertaken to study the performance of an existing stage of an industrial centrifugal compressor with a vaneless diffuser and is aimed at improving the efficiency of the compressor stage through the use of a low-solidity (LSD) vaned diffuser. The experiments wer...
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| Veröffentlicht in: | Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy Journal of power and energy, 2004-12, Vol.218 (8), p.637-646 |
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| container_title | Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy |
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| creator | Reddy, T Ch Siva Murty, G V Ramana Mukkavilli, P Reddy, D N |
| description | Abstract
The present investigation is undertaken to study the performance of an existing stage of an industrial centrifugal compressor with a vaneless diffuser and is aimed at improving the efficiency of the compressor stage through the use of a low-solidity (LSD) vaned diffuser. The experiments were conducted at a tip Mach number of 0.35. The LSD vane is formed from a standard aerofoil profile with marginal modification in the trailing edge region. The study was conducted at a solidity ratio of 0.81, which is considered as the optimum for the chosen stage. The overall stage performance for different diffuser vane setting angles was evaluated in terms of flow coefficient, head coefficient, polytropic efficiency and static pressure recovery coefficient. The performance parameters are normalized with respect to those of the vaneless diffuser at design flow. Improvement in performance as well as static pressure recovery was observed with LSD vanes as compared with a vaneless diffuser configuration. Variation in blade loading was studied from measurements of static pressure on the pressure and suction surfaces of LSD vanes at different vane setting angles. It was observed that the vane setting angle has a significant effect on stage performance and also on the blade loading. |
| doi_str_mv | 10.1243/0957650042584294 |
| format | Article |
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The present investigation is undertaken to study the performance of an existing stage of an industrial centrifugal compressor with a vaneless diffuser and is aimed at improving the efficiency of the compressor stage through the use of a low-solidity (LSD) vaned diffuser. The experiments were conducted at a tip Mach number of 0.35. The LSD vane is formed from a standard aerofoil profile with marginal modification in the trailing edge region. The study was conducted at a solidity ratio of 0.81, which is considered as the optimum for the chosen stage. The overall stage performance for different diffuser vane setting angles was evaluated in terms of flow coefficient, head coefficient, polytropic efficiency and static pressure recovery coefficient. The performance parameters are normalized with respect to those of the vaneless diffuser at design flow. Improvement in performance as well as static pressure recovery was observed with LSD vanes as compared with a vaneless diffuser configuration. Variation in blade loading was studied from measurements of static pressure on the pressure and suction surfaces of LSD vanes at different vane setting angles. It was observed that the vane setting angle has a significant effect on stage performance and also on the blade loading.</description><identifier>ISSN: 0957-6509</identifier><identifier>EISSN: 2041-2967</identifier><identifier>DOI: 10.1243/0957650042584294</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Applied sciences ; Compressors ; Diffusion ; Energy ; Energy. Thermal use of fuels ; Engines and turbines ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Exact sciences and technology ; Pressure</subject><ispartof>Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy, 2004-12, Vol.218 (8), p.637-646</ispartof><rights>2004 Institution of Mechanical Engineers</rights><rights>2005 INIST-CNRS</rights><rights>Copyright Mechanical Engineering Publications, Ltd. Dec 2004</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c432t-49ce9d778e1d1cdcf6b91bd431c28bafea921f27bd1ae99b88f0ce7c5e6424d03</citedby><cites>FETCH-LOGICAL-c432t-49ce9d778e1d1cdcf6b91bd431c28bafea921f27bd1ae99b88f0ce7c5e6424d03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1243/0957650042584294$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1243/0957650042584294$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,776,780,21798,27901,27902,43597,43598</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16357544$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Reddy, T Ch Siva</creatorcontrib><creatorcontrib>Murty, G V Ramana</creatorcontrib><creatorcontrib>Mukkavilli, P</creatorcontrib><creatorcontrib>Reddy, D N</creatorcontrib><title>Effect of the setting angle of a low-solidity vaned diffuser on the performance of a centrifugal compressor stage</title><title>Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy</title><description>Abstract
The present investigation is undertaken to study the performance of an existing stage of an industrial centrifugal compressor with a vaneless diffuser and is aimed at improving the efficiency of the compressor stage through the use of a low-solidity (LSD) vaned diffuser. The experiments were conducted at a tip Mach number of 0.35. The LSD vane is formed from a standard aerofoil profile with marginal modification in the trailing edge region. The study was conducted at a solidity ratio of 0.81, which is considered as the optimum for the chosen stage. The overall stage performance for different diffuser vane setting angles was evaluated in terms of flow coefficient, head coefficient, polytropic efficiency and static pressure recovery coefficient. The performance parameters are normalized with respect to those of the vaneless diffuser at design flow. Improvement in performance as well as static pressure recovery was observed with LSD vanes as compared with a vaneless diffuser configuration. Variation in blade loading was studied from measurements of static pressure on the pressure and suction surfaces of LSD vanes at different vane setting angles. It was observed that the vane setting angle has a significant effect on stage performance and also on the blade loading.</description><subject>Applied sciences</subject><subject>Compressors</subject><subject>Diffusion</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Engines and turbines</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Exact sciences and technology</subject><subject>Pressure</subject><issn>0957-6509</issn><issn>2041-2967</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNqNkcFLHDEUh0Op0K167zEUqqepSSaZTI5FtBWEXvQ8ZJKX7cjsZM3LtPjfm3EXFoSKuQTyvt8X3nuEfOHsOxeyvmBG6UYxJoVqpTDyA1kJJnklTKM_ktVSrkrdfCKfER9YOUqLFXm8CgFcpjHQ_AcoQs7DtKZ2Wo-wPFo6xn8VxnHwQ36if-0EnvohhBkh0Ti9pLaQQkwbO7l9xsGU0xDmtR2pi5ttAsSYKGa7hhNyFOyIcLq_j8n99dXd5a_q9vfPm8sft5WTtciVNA6M17oF7rnzLjS94b2XNXei7W0AawQPQveeWzCmb9vAHGinoJFCelYfk_Odd5vi4wyYu82ADsaxtBBn7HRRGc20KuTZm6Rodatq3b4D5E2j-WL8-gp8iHOaSrud4KYAvK4LxHaQSxExQei2adjY9NRx1i077V7vtES-7b0WnR1DKiMf8JBraqWVXLhqx2EZ-OHv_3qfAShwrmg</recordid><startdate>20041201</startdate><enddate>20041201</enddate><creator>Reddy, T Ch Siva</creator><creator>Murty, G V Ramana</creator><creator>Mukkavilli, P</creator><creator>Reddy, D N</creator><general>SAGE Publications</general><general>Professionnal Engineering Publishing</general><general>SAGE PUBLICATIONS, INC</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SP</scope><scope>7TB</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>KR7</scope><scope>L6V</scope><scope>L7M</scope><scope>M2P</scope><scope>M7S</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>Q9U</scope></search><sort><creationdate>20041201</creationdate><title>Effect of the setting angle of a low-solidity vaned diffuser on the performance of a centrifugal compressor stage</title><author>Reddy, T Ch Siva ; Murty, G V Ramana ; Mukkavilli, P ; Reddy, D N</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c432t-49ce9d778e1d1cdcf6b91bd431c28bafea921f27bd1ae99b88f0ce7c5e6424d03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Applied sciences</topic><topic>Compressors</topic><topic>Diffusion</topic><topic>Energy</topic><topic>Energy. 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Part A, Journal of power and energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Reddy, T Ch Siva</au><au>Murty, G V Ramana</au><au>Mukkavilli, P</au><au>Reddy, D N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of the setting angle of a low-solidity vaned diffuser on the performance of a centrifugal compressor stage</atitle><jtitle>Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy</jtitle><date>2004-12-01</date><risdate>2004</risdate><volume>218</volume><issue>8</issue><spage>637</spage><epage>646</epage><pages>637-646</pages><issn>0957-6509</issn><eissn>2041-2967</eissn><abstract>Abstract
The present investigation is undertaken to study the performance of an existing stage of an industrial centrifugal compressor with a vaneless diffuser and is aimed at improving the efficiency of the compressor stage through the use of a low-solidity (LSD) vaned diffuser. The experiments were conducted at a tip Mach number of 0.35. The LSD vane is formed from a standard aerofoil profile with marginal modification in the trailing edge region. The study was conducted at a solidity ratio of 0.81, which is considered as the optimum for the chosen stage. The overall stage performance for different diffuser vane setting angles was evaluated in terms of flow coefficient, head coefficient, polytropic efficiency and static pressure recovery coefficient. The performance parameters are normalized with respect to those of the vaneless diffuser at design flow. Improvement in performance as well as static pressure recovery was observed with LSD vanes as compared with a vaneless diffuser configuration. Variation in blade loading was studied from measurements of static pressure on the pressure and suction surfaces of LSD vanes at different vane setting angles. It was observed that the vane setting angle has a significant effect on stage performance and also on the blade loading.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><doi>10.1243/0957650042584294</doi><tpages>10</tpages></addata></record> |
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| subjects | Applied sciences Compressors Diffusion Energy Energy. Thermal use of fuels Engines and turbines Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Pressure |
| title | Effect of the setting angle of a low-solidity vaned diffuser on the performance of a centrifugal compressor stage |
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