Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece
The gas turbine transition piece was simplified to a one-four cylinder double chamber model with a single row of impinging holes in the outer wall. Heat transfer augmentation in the coolant chamber was achieved through the use of pin fin structure and mist cooling, which could increase the turbulenc...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Advances in Mathematical Physics |
| Online Access: | http://dx.doi.org/10.1155/2014/327590 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832547669482930176 |
|---|---|
| author | Tao Xu Hang Xiu Junlou Li Haichao Ge Qing Shao Guang Yang Zhenglei Yu |
| author_facet | Tao Xu Hang Xiu Junlou Li Haichao Ge Qing Shao Guang Yang Zhenglei Yu |
| author_sort | Tao Xu |
| collection | DOAJ |
| description | The gas turbine transition piece was simplified to a one-four cylinder double chamber model with a single row of impinging holes in the outer wall. Heat transfer augmentation in the coolant chamber was achieved through the use of pin fin structure and mist cooling, which could increase the turbulence and heat transfer efficiency. The present research is focused on heat transfer and pressure characteristics of the impinging cooling in the coolant chamber using FLUENT software. With the given diameter of impinging hole, pin fin diameter ratios D/d have been numerically studied in ranges from 1 to 2. Three different detached L were simulated. The impinging cooling performance in all cases was compared between single-phase and two-phase (imported appropriate mist) flow in the coolant chamber. All the simulation results reveal that the factors of L and D/d have significant effects on the convective heat transfer. After the pin fin structure was taken, the resulting temperature decrease of 38.77 K at most compared with the result of structure without pin fins. And with the mist injecting into the cooling chamber, the area weighted average temperature got a lower value without excess pressure loss, which could satisfy the more stringent requirements in engineering. |
| format | Article |
| id | doaj-art-ca8fca5f5efd4e80a95d957ba5685c54 |
| institution | Kabale University |
| issn | 1687-9120 1687-9139 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Mathematical Physics |
| spelling | doaj-art-ca8fca5f5efd4e80a95d957ba5685c542025-02-03T06:43:53ZengWileyAdvances in Mathematical Physics1687-91201687-91392014-01-01201410.1155/2014/327590327590Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition PieceTao Xu0Hang Xiu1Junlou Li2Haichao Ge3Qing Shao4Guang Yang5Zhenglei Yu6College of Mechanical Science & Engineering, Jilin University, Changchun 130025, ChinaCollege of Mechanical Science & Engineering, Jilin University, Changchun 130025, ChinaCollege of Mechanical Science & Engineering, Jilin University, Changchun 130025, ChinaCollege of Mechanical Science & Engineering, Jilin University, Changchun 130025, ChinaCollege of Mechanical Science & Engineering, Jilin University, Changchun 130025, ChinaCollege of Mechanical Science & Engineering, Jilin University, Changchun 130025, ChinaCollege of Mechanical Science & Engineering, Jilin University, Changchun 130025, ChinaThe gas turbine transition piece was simplified to a one-four cylinder double chamber model with a single row of impinging holes in the outer wall. Heat transfer augmentation in the coolant chamber was achieved through the use of pin fin structure and mist cooling, which could increase the turbulence and heat transfer efficiency. The present research is focused on heat transfer and pressure characteristics of the impinging cooling in the coolant chamber using FLUENT software. With the given diameter of impinging hole, pin fin diameter ratios D/d have been numerically studied in ranges from 1 to 2. Three different detached L were simulated. The impinging cooling performance in all cases was compared between single-phase and two-phase (imported appropriate mist) flow in the coolant chamber. All the simulation results reveal that the factors of L and D/d have significant effects on the convective heat transfer. After the pin fin structure was taken, the resulting temperature decrease of 38.77 K at most compared with the result of structure without pin fins. And with the mist injecting into the cooling chamber, the area weighted average temperature got a lower value without excess pressure loss, which could satisfy the more stringent requirements in engineering.http://dx.doi.org/10.1155/2014/327590 |
| spellingShingle | Tao Xu Hang Xiu Junlou Li Haichao Ge Qing Shao Guang Yang Zhenglei Yu Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece Advances in Mathematical Physics |
| title | Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece |
| title_full | Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece |
| title_fullStr | Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece |
| title_full_unstemmed | Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece |
| title_short | Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece |
| title_sort | simulation of impinging cooling performance with pin fins and mist cooling adopted in a simplified gas turbine transition piece |
| url | http://dx.doi.org/10.1155/2014/327590 |
| work_keys_str_mv | AT taoxu simulationofimpingingcoolingperformancewithpinfinsandmistcoolingadoptedinasimplifiedgasturbinetransitionpiece AT hangxiu simulationofimpingingcoolingperformancewithpinfinsandmistcoolingadoptedinasimplifiedgasturbinetransitionpiece AT junlouli simulationofimpingingcoolingperformancewithpinfinsandmistcoolingadoptedinasimplifiedgasturbinetransitionpiece AT haichaoge simulationofimpingingcoolingperformancewithpinfinsandmistcoolingadoptedinasimplifiedgasturbinetransitionpiece AT qingshao simulationofimpingingcoolingperformancewithpinfinsandmistcoolingadoptedinasimplifiedgasturbinetransitionpiece AT guangyang simulationofimpingingcoolingperformancewithpinfinsandmistcoolingadoptedinasimplifiedgasturbinetransitionpiece AT zhengleiyu simulationofimpingingcoolingperformancewithpinfinsandmistcoolingadoptedinasimplifiedgasturbinetransitionpiece |