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The Design Approach for Supercritical CO2 Gas Turbine.
- Source :
- AIP Conference Proceedings; 2019, Vol. 2189 Issue 1, p020018-1-020018-7, 7p
- Publication Year :
- 2019
-
Abstract
- Nowadays the engineers are paying a great interest in the development of power plants for electricity production with zero greenhouse gas emissions. Oxy-fuel combustion cycle is a promising technology requiring detailed turbomachine development. This study presents the results of preliminary flow path design of a supercritical carbon dioxide gas turbine. Initial working fluid parameters for the developed 350 MW turbine are 1150 °C and 300 bar. The turbine pressure ratio is equal to 10. The turbine flow path with a constant root diameter was chosen. Blade length of the first stage is 31 mm with a mean diameter of 969 mm. Blade length of the last stage is 169 mm with a mean diameter of 1040 mm. The convective blade cooling system was proposed. With an average cooling efficiency factor of 0.4, the coolant flow consumption is no more than 10% of the total flow of carbon dioxide to the turbine. The presence of heat transfer intensifiers in the blade internal channels determines the cooling depth up to 150 °C, which allows the use of well-mastered heat-resistant alloys in gas turbine construction. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 2189
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 139830534
- Full Text :
- https://doi.org/10.1063/1.5138630