Effect of Spherical Blockage Configurations on Film Cooling (CROSBI ID 652862)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Wang, Jin ; Tian, Ke ; Zhang, Kai ; Baleta, Jakov ; Sunden , Bengt
engleski
Effect of Spherical Blockage Configurations on Film Cooling
With increasing inlet temperature of gas turbines, turbine blades need to be effectively protected by using cooling technologies. However, the deposition from the fuel impurities and dust particles in the air is often found inside film holes, which results in partial hole blockage. In this paper, the geometry is simplified as a rectangular channel, and the effect of three blockage ratios is investigated by using the Realizable k- turbulence model. In addition, water droplets are also released from the coolant inlet to provide a comparison of the results with and without mist injection. It is found that the lateral film cooling effectiveness is reduced with increasing blockage ratio. For all the cases with the blowing ratio 0.6, 1% mist injection provides an improvement of the cooling performance by approximately 10%.
Film cooling ; blockage ; mist injection ; sphere ; gas turbine
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
0306
2017.
objavljeno
Podaci o matičnoj publikaciji
Digital Proceedings of 12th Conference on Sustainable Development of Energy, Water and Environment Systems - SDEWES
Ban, Marko et al.
Zagreb: Fakultet strojarstva i brodogradnje Sveučilišta u Zagrebu
Podaci o skupu
12th Conference on Sustainable Development of Energy, Water and Environment Systems - SDEWES
poster
04.10.2017-08.10.2017
Dubrovnik, Hrvatska