The effect of rotation on heat transfer in the radial cooling channels of turbine blades
Abstract
The effect of rotation on heat transfer in the channels of moving turbine blades in a loop cooling system is investigated experimentally. The working channels consisted of round tubes with sharp edges and the tubes were fixed to a support. Calculation of the parameters required for correlating the experimental data was conducted according to local air temperature at the entry of the channel. Analysis of the measured and calculated heat transfer parameters showed that the average error in determining heat transfer was 13 percent. The error in calculating the bulk flow rate of air was 8 percent. Formulas for calculating the centrifugal and centripetal air flows are derived.
- Publication:
-
Teploenergetika
- Pub Date:
- February 1985
- Bibcode:
- 1985Teplo..32...52I
- Keywords:
-
- Channel Flow;
- Cooling Systems;
- Heat Transfer;
- Rotating Environments;
- Turbine Blades;
- Air Cooling;
- Centrifugal Force;
- Centripetal Force;
- Heat Transfer Coefficients;
- Suction;
- Fluid Mechanics and Heat Transfer