Micropower generation with microgasturbines: A challenge
Abstract This paper describes the development of a microgasturbine with a rotor diameter of 20 mm. The target electrical power output lies around 1 kW. The total system fits in a cylinder with a diameter of 95 mm and a length of 120 mm. The system contains the same components as a large gasturbine g...
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| Veröffentlicht in: | Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science Journal of mechanical engineering science, 2007-04, Vol.221 (4), p.489-500 |
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| creator | Peirs, J Waumans, T Vleugels, P Al-Bender, F Stevens, T Verstraete, T Stevens, S D'hulst, R Verstraete, D Fiorini, P Van den Braembussche, R Driesen, J Puers, R Hendrick, P Baelmans, M Reynaerts, D |
| description | Abstract
This paper describes the development of a microgasturbine with a rotor diameter of 20 mm. The target electrical power output lies around 1 kW. The total system fits in a cylinder with a diameter of 95 mm and a length of 120 mm. The system contains the same components as a large gasturbine generator: compressor, recuperator, combustion chamber, turbine, and electrical generator.
Major challenges are the high rotational speed (500 000 r/min), high turbine inlet temperature (1200 K), and the efficiency of the components. Because of the small dimensions, the flow through compressor and turbine is characterized by relatively low Reynolds numbers. The higher flow losses and inherently lower efficiency require a higher blade tip speed (524 m/s) than for large turbines (300-400 m/s).
To minimize wear and frictional losses, the rotor is mounted on aerodynamic bearings. To withstand the high centrifugal stresses, a high-strength steel is used for compressor and shaft. The turbine is made of a Si3N4-TiN ceramic composite to withstand the combination of elevated stress and temperature. |
| doi_str_mv | 10.1243/0954406JMES472 |
| format | Article |
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This paper describes the development of a microgasturbine with a rotor diameter of 20 mm. The target electrical power output lies around 1 kW. The total system fits in a cylinder with a diameter of 95 mm and a length of 120 mm. The system contains the same components as a large gasturbine generator: compressor, recuperator, combustion chamber, turbine, and electrical generator.
Major challenges are the high rotational speed (500 000 r/min), high turbine inlet temperature (1200 K), and the efficiency of the components. Because of the small dimensions, the flow through compressor and turbine is characterized by relatively low Reynolds numbers. The higher flow losses and inherently lower efficiency require a higher blade tip speed (524 m/s) than for large turbines (300-400 m/s).
To minimize wear and frictional losses, the rotor is mounted on aerodynamic bearings. To withstand the high centrifugal stresses, a high-strength steel is used for compressor and shaft. The turbine is made of a Si3N4-TiN ceramic composite to withstand the combination of elevated stress and temperature.</description><identifier>ISSN: 0954-4062</identifier><identifier>EISSN: 2041-2983</identifier><identifier>DOI: 10.1243/0954406JMES472</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Aerodynamics ; Bearing steels ; Bearing strength ; Centrifugal compressors ; Ceramics ; Combustion chambers ; Cylinders ; Efficiency ; Electric power ; Electricity generation ; Gas turbines ; Inlet temperature ; Mechanical engineering ; Miniaturization ; Product design ; Strength ; Stresses ; Tip speed ; Titanium nitride ; Turbines ; Wear</subject><ispartof>Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science, 2007-04, Vol.221 (4), p.489-500</ispartof><rights>2007 Institution of Mechanical Engineers</rights><rights>Copyright Professional Engineering Publishing Ltd Apr 2007</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-814c74a79953914d2df263485da6085fa2db27d93e873cb32a8bd74286deea413</citedby><cites>FETCH-LOGICAL-c392t-814c74a79953914d2df263485da6085fa2db27d93e873cb32a8bd74286deea413</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1243/0954406JMES472$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1243/0954406JMES472$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,777,781,21800,27905,27906,43602,43603</link.rule.ids></links><search><creatorcontrib>Peirs, J</creatorcontrib><creatorcontrib>Waumans, T</creatorcontrib><creatorcontrib>Vleugels, P</creatorcontrib><creatorcontrib>Al-Bender, F</creatorcontrib><creatorcontrib>Stevens, T</creatorcontrib><creatorcontrib>Verstraete, T</creatorcontrib><creatorcontrib>Stevens, S</creatorcontrib><creatorcontrib>D'hulst, R</creatorcontrib><creatorcontrib>Verstraete, D</creatorcontrib><creatorcontrib>Fiorini, P</creatorcontrib><creatorcontrib>Van den Braembussche, R</creatorcontrib><creatorcontrib>Driesen, J</creatorcontrib><creatorcontrib>Puers, R</creatorcontrib><creatorcontrib>Hendrick, P</creatorcontrib><creatorcontrib>Baelmans, M</creatorcontrib><creatorcontrib>Reynaerts, D</creatorcontrib><title>Micropower generation with microgasturbines: A challenge</title><title>Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science</title><description>Abstract
This paper describes the development of a microgasturbine with a rotor diameter of 20 mm. The target electrical power output lies around 1 kW. The total system fits in a cylinder with a diameter of 95 mm and a length of 120 mm. The system contains the same components as a large gasturbine generator: compressor, recuperator, combustion chamber, turbine, and electrical generator.
Major challenges are the high rotational speed (500 000 r/min), high turbine inlet temperature (1200 K), and the efficiency of the components. Because of the small dimensions, the flow through compressor and turbine is characterized by relatively low Reynolds numbers. The higher flow losses and inherently lower efficiency require a higher blade tip speed (524 m/s) than for large turbines (300-400 m/s).
To minimize wear and frictional losses, the rotor is mounted on aerodynamic bearings. To withstand the high centrifugal stresses, a high-strength steel is used for compressor and shaft. The turbine is made of a Si3N4-TiN ceramic composite to withstand the combination of elevated stress and temperature.</description><subject>Aerodynamics</subject><subject>Bearing steels</subject><subject>Bearing strength</subject><subject>Centrifugal compressors</subject><subject>Ceramics</subject><subject>Combustion chambers</subject><subject>Cylinders</subject><subject>Efficiency</subject><subject>Electric power</subject><subject>Electricity generation</subject><subject>Gas turbines</subject><subject>Inlet temperature</subject><subject>Mechanical engineering</subject><subject>Miniaturization</subject><subject>Product design</subject><subject>Strength</subject><subject>Stresses</subject><subject>Tip speed</subject><subject>Titanium nitride</subject><subject>Turbines</subject><subject>Wear</subject><issn>0954-4062</issn><issn>2041-2983</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqFkb1PwzAQxS0EEqWwMkcgsaAU2-fENhuqypdaMQBz5CSXNFWaFDtRxX-PozIAAnHLDe93T3rvCDlldMK4gCuqIyFo_LiYPQvJ98iIU8FCrhXsk9Eghl7lh-TIuRX1w-NoRNSiymy7abdogxIbtKar2ibYVt0yWA9SaVzX27Rq0F0HN0G2NHWNTYnH5KAwtcOTzz0mr7ezl-l9OH-6e5jezMMMNO9CxUQmhZFaR6CZyHle8BiEinITUxUVhucpl7kGVBKyFLhRaS4FV3GOaASDMbnY-W5s-9aj65J15TKsa9Ng27sEIp9dR_pfkGsdx4qCB89-gKu2t40PkXAQ2nckpYfO_4KYphqAghysJjvKF-WcxSLZ2Gpt7HvCaDI8Jfn-FH9wuTtwpsQvlr_THzTGiY0</recordid><startdate>20070401</startdate><enddate>20070401</enddate><creator>Peirs, J</creator><creator>Waumans, T</creator><creator>Vleugels, P</creator><creator>Al-Bender, F</creator><creator>Stevens, T</creator><creator>Verstraete, T</creator><creator>Stevens, S</creator><creator>D'hulst, R</creator><creator>Verstraete, D</creator><creator>Fiorini, P</creator><creator>Van den Braembussche, R</creator><creator>Driesen, J</creator><creator>Puers, R</creator><creator>Hendrick, P</creator><creator>Baelmans, M</creator><creator>Reynaerts, D</creator><general>SAGE Publications</general><general>SAGE PUBLICATIONS, INC</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>3V.</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8AO</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>GNUQQ</scope><scope>HCIFZ</scope><scope>L6V</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>20070401</creationdate><title>Micropower generation with microgasturbines: A challenge</title><author>Peirs, J ; Waumans, T ; Vleugels, P ; Al-Bender, F ; Stevens, T ; Verstraete, T ; Stevens, S ; D'hulst, R ; Verstraete, D ; Fiorini, P ; Van den Braembussche, R ; Driesen, J ; Puers, R ; Hendrick, P ; Baelmans, M ; Reynaerts, D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-814c74a79953914d2df263485da6085fa2db27d93e873cb32a8bd74286deea413</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Aerodynamics</topic><topic>Bearing steels</topic><topic>Bearing strength</topic><topic>Centrifugal compressors</topic><topic>Ceramics</topic><topic>Combustion chambers</topic><topic>Cylinders</topic><topic>Efficiency</topic><topic>Electric power</topic><topic>Electricity generation</topic><topic>Gas turbines</topic><topic>Inlet temperature</topic><topic>Mechanical engineering</topic><topic>Miniaturization</topic><topic>Product design</topic><topic>Strength</topic><topic>Stresses</topic><topic>Tip speed</topic><topic>Titanium nitride</topic><topic>Turbines</topic><topic>Wear</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Peirs, J</creatorcontrib><creatorcontrib>Waumans, T</creatorcontrib><creatorcontrib>Vleugels, P</creatorcontrib><creatorcontrib>Al-Bender, F</creatorcontrib><creatorcontrib>Stevens, T</creatorcontrib><creatorcontrib>Verstraete, T</creatorcontrib><creatorcontrib>Stevens, S</creatorcontrib><creatorcontrib>D'hulst, R</creatorcontrib><creatorcontrib>Verstraete, D</creatorcontrib><creatorcontrib>Fiorini, P</creatorcontrib><creatorcontrib>Van den Braembussche, R</creatorcontrib><creatorcontrib>Driesen, J</creatorcontrib><creatorcontrib>Puers, R</creatorcontrib><creatorcontrib>Hendrick, P</creatorcontrib><creatorcontrib>Baelmans, M</creatorcontrib><creatorcontrib>Reynaerts, D</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>ProQuest Central (Corporate)</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>ProQuest Pharma Collection</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><jtitle>Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Peirs, J</au><au>Waumans, T</au><au>Vleugels, P</au><au>Al-Bender, F</au><au>Stevens, T</au><au>Verstraete, T</au><au>Stevens, S</au><au>D'hulst, R</au><au>Verstraete, D</au><au>Fiorini, P</au><au>Van den Braembussche, R</au><au>Driesen, J</au><au>Puers, R</au><au>Hendrick, P</au><au>Baelmans, M</au><au>Reynaerts, D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Micropower generation with microgasturbines: A challenge</atitle><jtitle>Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science</jtitle><date>2007-04-01</date><risdate>2007</risdate><volume>221</volume><issue>4</issue><spage>489</spage><epage>500</epage><pages>489-500</pages><issn>0954-4062</issn><eissn>2041-2983</eissn><abstract>Abstract
This paper describes the development of a microgasturbine with a rotor diameter of 20 mm. The target electrical power output lies around 1 kW. The total system fits in a cylinder with a diameter of 95 mm and a length of 120 mm. The system contains the same components as a large gasturbine generator: compressor, recuperator, combustion chamber, turbine, and electrical generator.
Major challenges are the high rotational speed (500 000 r/min), high turbine inlet temperature (1200 K), and the efficiency of the components. Because of the small dimensions, the flow through compressor and turbine is characterized by relatively low Reynolds numbers. The higher flow losses and inherently lower efficiency require a higher blade tip speed (524 m/s) than for large turbines (300-400 m/s).
To minimize wear and frictional losses, the rotor is mounted on aerodynamic bearings. To withstand the high centrifugal stresses, a high-strength steel is used for compressor and shaft. The turbine is made of a Si3N4-TiN ceramic composite to withstand the combination of elevated stress and temperature.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><doi>10.1243/0954406JMES472</doi><tpages>12</tpages></addata></record> |
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| identifier | ISSN: 0954-4062 |
| ispartof | Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science, 2007-04, Vol.221 (4), p.489-500 |
| issn | 0954-4062 2041-2983 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_35243959 |
| source | SAGE Complete A-Z List |
| subjects | Aerodynamics Bearing steels Bearing strength Centrifugal compressors Ceramics Combustion chambers Cylinders Efficiency Electric power Electricity generation Gas turbines Inlet temperature Mechanical engineering Miniaturization Product design Strength Stresses Tip speed Titanium nitride Turbines Wear |
| title | Micropower generation with microgasturbines: A challenge |
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