Effects of Particle Size and Mainstream Inlet Angle on Deposition in a Turbine Cascade
(2021) In Journal of Energy Resources Technology, Transactions of the ASME 143(12).- Abstract
Based on the critical velocity model, impact and capture efficiencies in an AGTB turbine cascade are investigated numerically under various inlet angles of mainstream, blowing ratios, particle sizes, and particle densities. The effect of hole configuration on deposition is analyzed based on comparisons of results from combined hole and cylindrical hole. The impact efficiency increases with the increase of particle size. Impact area on pressure side of blade surface expands with increasing of the mainstream inlet angle from 123 deg to 143 deg. The capture efficiency decreases with the increase of blowing ratio for 10 µm particles. For particles with densities of 1485 kg/m3, 1980 kg/m3, and 2475 kg/m3, the... (More)
Based on the critical velocity model, impact and capture efficiencies in an AGTB turbine cascade are investigated numerically under various inlet angles of mainstream, blowing ratios, particle sizes, and particle densities. The effect of hole configuration on deposition is analyzed based on comparisons of results from combined hole and cylindrical hole. The impact efficiency increases with the increase of particle size. Impact area on pressure side of blade surface expands with increasing of the mainstream inlet angle from 123 deg to 143 deg. The capture efficiency decreases with the increase of blowing ratio for 10 µm particles. For particles with densities of 1485 kg/m3, 1980 kg/m3, and 2475 kg/m3, the maximum capture efficiency is reached when the particle size is 5 µm. The particle capture efficiency for the combined hole is up to 3.9% lower than that for cylindrical hole when the mainstream inlet angle is 123 deg.
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- author
- Wang, Jin LU ; Zhao, Zhanming ; Xie, Gongnan LU ; Mikulcic, Hrvoje ; Vujanovic, Milan and Sundén, Bengt LU
- organization
- publishing date
- 2021-12
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Combined hole, Deposition, Energy conversion/systems, Gas turbine, Heat energy generation/storage/transfer, Mainstream inlet angle, Natural gas technology, Particle size
- in
- Journal of Energy Resources Technology, Transactions of the ASME
- volume
- 143
- issue
- 12
- article number
- 122103
- publisher
- American Society Of Mechanical Engineers (ASME)
- external identifiers
-
- scopus:85126901533
- ISSN
- 0195-0738
- DOI
- 10.1115/1.4052276
- language
- English
- LU publication?
- yes
- id
- e7cd411c-6ac7-4cfa-b5eb-2392b1e157e0
- date added to LUP
- 2022-05-03 11:20:41
- date last changed
- 2023-11-21 04:28:23
@article{e7cd411c-6ac7-4cfa-b5eb-2392b1e157e0, abstract = {{<p>Based on the critical velocity model, impact and capture efficiencies in an AGTB turbine cascade are investigated numerically under various inlet angles of mainstream, blowing ratios, particle sizes, and particle densities. The effect of hole configuration on deposition is analyzed based on comparisons of results from combined hole and cylindrical hole. The impact efficiency increases with the increase of particle size. Impact area on pressure side of blade surface expands with increasing of the mainstream inlet angle from 123 deg to 143 deg. The capture efficiency decreases with the increase of blowing ratio for 10 µm particles. For particles with densities of 1485 kg/m<sup>3</sup>, 1980 kg/m<sup>3</sup>, and 2475 kg/m<sup>3</sup>, the maximum capture efficiency is reached when the particle size is 5 µm. The particle capture efficiency for the combined hole is up to 3.9% lower than that for cylindrical hole when the mainstream inlet angle is 123 deg.</p>}}, author = {{Wang, Jin and Zhao, Zhanming and Xie, Gongnan and Mikulcic, Hrvoje and Vujanovic, Milan and Sundén, Bengt}}, issn = {{0195-0738}}, keywords = {{Combined hole; Deposition; Energy conversion/systems; Gas turbine; Heat energy generation/storage/transfer; Mainstream inlet angle; Natural gas technology; Particle size}}, language = {{eng}}, number = {{12}}, publisher = {{American Society Of Mechanical Engineers (ASME)}}, series = {{Journal of Energy Resources Technology, Transactions of the ASME}}, title = {{Effects of Particle Size and Mainstream Inlet Angle on Deposition in a Turbine Cascade}}, url = {{http://dx.doi.org/10.1115/1.4052276}}, doi = {{10.1115/1.4052276}}, volume = {{143}}, year = {{2021}}, }