Experimental Investigation of Factors Influencing Operating Rotor Tip Clearance in Multistage Compressors
An analysis of compressor rotor tip clearance measurements using capacitance probe instrumentation is discussed for a three-stage axial compressor. Thermal variations and centrifugal effects related to rotational speed changes affect clearance heights relative to the assembled configuration. These t...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2015/146272 |
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| _version_ | 1832559838299684864 |
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| author | Reid A. Berdanier Nicole L. Key |
| author_facet | Reid A. Berdanier Nicole L. Key |
| author_sort | Reid A. Berdanier |
| collection | DOAJ |
| description | An analysis of compressor rotor tip clearance measurements using capacitance probe instrumentation is discussed for a three-stage axial compressor. Thermal variations and centrifugal effects related to rotational speed changes affect clearance heights relative to the assembled configuration. These two primary contributions to measured changes are discussed both independently and in combination. Emphasis is given to tip clearance changes due to changing loading condition and at several compressor operating speeds. Measurements show a tip clearance change approaching 0.1 mm (0.2% rotor span) when comparing a near-choke operating condition to a near-stall operating condition for the third stage. Additional consideration is given to environmental contributions such as ambient temperature, for which changes in tip clearance height on the order of 0.05 mm (0.1% rotor span) were noted for temperature variations of 15°C. Experimental compressor operating clearances are presented for several temperatures, operating speeds, and loading conditions, and comparisons are drawn between these measured variations and predicted changes under the same conditions. |
| format | Article |
| id | doaj-art-71d54be425094e10a34a13203e78c584 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-71d54be425094e10a34a13203e78c5842025-02-03T01:29:06ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342015-01-01201510.1155/2015/146272146272Experimental Investigation of Factors Influencing Operating Rotor Tip Clearance in Multistage CompressorsReid A. Berdanier0Nicole L. Key1School of Mechanical Engineering, Purdue University, 500 Allison Road, West Lafayette, IN 47907, USASchool of Mechanical Engineering, Purdue University, 500 Allison Road, West Lafayette, IN 47907, USAAn analysis of compressor rotor tip clearance measurements using capacitance probe instrumentation is discussed for a three-stage axial compressor. Thermal variations and centrifugal effects related to rotational speed changes affect clearance heights relative to the assembled configuration. These two primary contributions to measured changes are discussed both independently and in combination. Emphasis is given to tip clearance changes due to changing loading condition and at several compressor operating speeds. Measurements show a tip clearance change approaching 0.1 mm (0.2% rotor span) when comparing a near-choke operating condition to a near-stall operating condition for the third stage. Additional consideration is given to environmental contributions such as ambient temperature, for which changes in tip clearance height on the order of 0.05 mm (0.1% rotor span) were noted for temperature variations of 15°C. Experimental compressor operating clearances are presented for several temperatures, operating speeds, and loading conditions, and comparisons are drawn between these measured variations and predicted changes under the same conditions.http://dx.doi.org/10.1155/2015/146272 |
| spellingShingle | Reid A. Berdanier Nicole L. Key Experimental Investigation of Factors Influencing Operating Rotor Tip Clearance in Multistage Compressors International Journal of Rotating Machinery |
| title | Experimental Investigation of Factors Influencing Operating Rotor Tip Clearance in Multistage Compressors |
| title_full | Experimental Investigation of Factors Influencing Operating Rotor Tip Clearance in Multistage Compressors |
| title_fullStr | Experimental Investigation of Factors Influencing Operating Rotor Tip Clearance in Multistage Compressors |
| title_full_unstemmed | Experimental Investigation of Factors Influencing Operating Rotor Tip Clearance in Multistage Compressors |
| title_short | Experimental Investigation of Factors Influencing Operating Rotor Tip Clearance in Multistage Compressors |
| title_sort | experimental investigation of factors influencing operating rotor tip clearance in multistage compressors |
| url | http://dx.doi.org/10.1155/2015/146272 |
| work_keys_str_mv | AT reidaberdanier experimentalinvestigationoffactorsinfluencingoperatingrotortipclearanceinmultistagecompressors AT nicolelkey experimentalinvestigationoffactorsinfluencingoperatingrotortipclearanceinmultistagecompressors |