Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment
This paper presents experimental results of a single stage transonic axial flow compressor coupled with low porosity bend skewed casing treatment. The casing treatment has a plenum chamber above the bend slots. The depth of the plenum chamber is varied to understand its impact on the performance of...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2014/625876 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832552450557476864 |
|---|---|
| author | Dilipkumar Bhanudasji Alone S. Satish Kumar Shobhavathy M. Thimmaiah Janaki Rami Reddy Mudipalli A. M. Pradeep Srinivasan Ramamurthy Venkat S. Iyengar |
| author_facet | Dilipkumar Bhanudasji Alone S. Satish Kumar Shobhavathy M. Thimmaiah Janaki Rami Reddy Mudipalli A. M. Pradeep Srinivasan Ramamurthy Venkat S. Iyengar |
| author_sort | Dilipkumar Bhanudasji Alone |
| collection | DOAJ |
| description | This paper presents experimental results of a single stage transonic axial flow compressor coupled with low porosity bend skewed casing treatment. The casing treatment has a plenum chamber above the bend slots. The depth of the plenum chamber is varied to understand its impact on the performance of compressor stage. The performance of the compressor stage is evaluated for casing treatment and plenum chamber configurations at two axial locations of 20% and 40%. Experimental results reveal that the stall margin of the compressor stage increases with increase in the plenum chamber volume. Hot-wire measurements show significant reduction in the turbulence intensity with increase in the plenum chamber volume compared to that with the solid casing at the stall condition. At higher operating speeds of 80% and at 20% axial coverage, the stall margin of the compressor increases by 20% with half and full plenum depth. The improvement in the peak stage efficiency observed is 4.6% with half plenum configuration and 3.34% with the full plenum configuration. The maximum improvement in the stall margin of 29.16% is obtained at 50% operating speed with full plenum configurations at 40% axial coverage. |
| format | Article |
| id | doaj-art-9ffa5768e4f44369a78d0608f5d29dd0 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-9ffa5768e4f44369a78d0608f5d29dd02025-02-03T05:58:43ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342014-01-01201410.1155/2014/625876625876Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing TreatmentDilipkumar Bhanudasji Alone0S. Satish Kumar1Shobhavathy M. Thimmaiah2Janaki Rami Reddy Mudipalli3A. M. Pradeep4Srinivasan Ramamurthy5Venkat S. Iyengar6Propulsion Division, CSIR-NAL, Bangalore 560037, IndiaPropulsion Division, CSIR-NAL, Bangalore 560037, IndiaPropulsion Division, CSIR-NAL, Bangalore 560037, IndiaPropulsion Division, CSIR-NAL, Bangalore 560037, IndiaIndian Institute of Technology Bombay, Powai 400076, IndiaNational Civil Aircraft Development (NCAD), CSIR-NAL, Bangalore 560017, IndiaPropulsion Division, CSIR-NAL, Bangalore 560037, IndiaThis paper presents experimental results of a single stage transonic axial flow compressor coupled with low porosity bend skewed casing treatment. The casing treatment has a plenum chamber above the bend slots. The depth of the plenum chamber is varied to understand its impact on the performance of compressor stage. The performance of the compressor stage is evaluated for casing treatment and plenum chamber configurations at two axial locations of 20% and 40%. Experimental results reveal that the stall margin of the compressor stage increases with increase in the plenum chamber volume. Hot-wire measurements show significant reduction in the turbulence intensity with increase in the plenum chamber volume compared to that with the solid casing at the stall condition. At higher operating speeds of 80% and at 20% axial coverage, the stall margin of the compressor increases by 20% with half and full plenum depth. The improvement in the peak stage efficiency observed is 4.6% with half plenum configuration and 3.34% with the full plenum configuration. The maximum improvement in the stall margin of 29.16% is obtained at 50% operating speed with full plenum configurations at 40% axial coverage.http://dx.doi.org/10.1155/2014/625876 |
| spellingShingle | Dilipkumar Bhanudasji Alone S. Satish Kumar Shobhavathy M. Thimmaiah Janaki Rami Reddy Mudipalli A. M. Pradeep Srinivasan Ramamurthy Venkat S. Iyengar Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment International Journal of Rotating Machinery |
| title | Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment |
| title_full | Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment |
| title_fullStr | Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment |
| title_full_unstemmed | Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment |
| title_short | Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment |
| title_sort | improvement of moderately loaded transonic axial compressor performance using low porosity bend skewed casing treatment |
| url | http://dx.doi.org/10.1155/2014/625876 |
| work_keys_str_mv | AT dilipkumarbhanudasjialone improvementofmoderatelyloadedtransonicaxialcompressorperformanceusinglowporositybendskewedcasingtreatment AT ssatishkumar improvementofmoderatelyloadedtransonicaxialcompressorperformanceusinglowporositybendskewedcasingtreatment AT shobhavathymthimmaiah improvementofmoderatelyloadedtransonicaxialcompressorperformanceusinglowporositybendskewedcasingtreatment AT janakiramireddymudipalli improvementofmoderatelyloadedtransonicaxialcompressorperformanceusinglowporositybendskewedcasingtreatment AT ampradeep improvementofmoderatelyloadedtransonicaxialcompressorperformanceusinglowporositybendskewedcasingtreatment AT srinivasanramamurthy improvementofmoderatelyloadedtransonicaxialcompressorperformanceusinglowporositybendskewedcasingtreatment AT venkatsiyengar improvementofmoderatelyloadedtransonicaxialcompressorperformanceusinglowporositybendskewedcasingtreatment |