Modeling of transient processes in gas-turbine compressors and turbines for engine fault
Transient performance analysis is important and effective for on line fault diagnosis in gas turbine engines. The present transient thermodynamic model for compressor and turbine is developed for this purpose. The algebraic solution and numerical solution are coupled for the different contr...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
2011
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| Online Access: | http://hdl.handle.net/10356/42633 |
| _version_ | 1811694715327741952 |
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| author | Sheng, Xiao Hong. |
| author2 | Ho Hiang Kwee |
| author_facet | Ho Hiang Kwee Sheng, Xiao Hong. |
| author_sort | Sheng, Xiao Hong. |
| collection | NTU |
| description | Transient performance analysis is important and effective for on line fault diagnosis in
gas turbine engines. The present transient thermodynamic model for compressor and
turbine is developed for this purpose. The algebraic solution and numerical solution are
coupled for the different control volumes according to the different physical laws
governing these control volumes. A new concept of plenum whose volume incorporates
the space from the down stream of the row to the upstream of the next row is introduced. A variable time step is used to solve the equations. The compressor and the turbine are modeled by three sections, that is, the rotor, the stator with lumped parameters, and the polonium with non-uniform parameters. The loss can be predicted
either by experimental correlations and the geometry or by isentropic efficiency in the
current model. |
| first_indexed | 2024-10-01T07:11:59Z |
| format | Thesis |
| id | ntu-10356/42633 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:11:59Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/426332023-03-11T17:02:14Z Modeling of transient processes in gas-turbine compressors and turbines for engine fault Sheng, Xiao Hong. Ho Hiang Kwee School of Mechanical and Production Engineering Ho Peng Yip DRNTU::Engineering::Mechanical engineering::Motors, engines and turbines Transient performance analysis is important and effective for on line fault diagnosis in gas turbine engines. The present transient thermodynamic model for compressor and turbine is developed for this purpose. The algebraic solution and numerical solution are coupled for the different control volumes according to the different physical laws governing these control volumes. A new concept of plenum whose volume incorporates the space from the down stream of the row to the upstream of the next row is introduced. A variable time step is used to solve the equations. The compressor and the turbine are modeled by three sections, that is, the rotor, the stator with lumped parameters, and the polonium with non-uniform parameters. The loss can be predicted either by experimental correlations and the geometry or by isentropic efficiency in the current model. Master of Engineering (MPE) 2011-01-06T02:12:23Z 2011-01-06T02:12:23Z 1998 1998 Thesis http://hdl.handle.net/10356/42633 en 165 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering::Motors, engines and turbines Sheng, Xiao Hong. Modeling of transient processes in gas-turbine compressors and turbines for engine fault |
| title | Modeling of transient processes in gas-turbine compressors and turbines for engine fault |
| title_full | Modeling of transient processes in gas-turbine compressors and turbines for engine fault |
| title_fullStr | Modeling of transient processes in gas-turbine compressors and turbines for engine fault |
| title_full_unstemmed | Modeling of transient processes in gas-turbine compressors and turbines for engine fault |
| title_short | Modeling of transient processes in gas-turbine compressors and turbines for engine fault |
| title_sort | modeling of transient processes in gas turbine compressors and turbines for engine fault |
| topic | DRNTU::Engineering::Mechanical engineering::Motors, engines and turbines |
| url | http://hdl.handle.net/10356/42633 |
| work_keys_str_mv | AT shengxiaohong modelingoftransientprocessesingasturbinecompressorsandturbinesforenginefault |