Author: Christopher Michael SpadacciniPublisher:
ISBN:
Category :
Languages : en
Pages : 148
Book Description
Aerodynamic Performance Measurements of a Fully Scaled, Film-coated, Turbine Stage
Author: Christopher Michael SpadacciniPublisher:
ISBN:
Category :
Languages : en
Pages : 148
Book Description
Aerodynamic Performance Measurements in a Fully Scaled Turbine
Author: Yi CaiAerodynamic Performance Measurements of a Film-cooled Turbine Stage
Author: Rory Colm KeoghPublisher:
ISBN:
Category :
Languages : en
Pages : 168
Book Description
(Cont.) The loss due to film-cooling is defined as the difference in performance between the film-cooled turbine and an ideal turbine with the same velocity triangles and airfoil Mach number distributions. However, there is no uncooled turbine geometry that will produce the same flow conditions as the film-cooled turbine stage, and consequently, there is no experimental baseline that can be tested to determine the loss due to film- cooling. A meanline velocity triangle model of the turbine stage was developed using published correlations and loss models to estimate the performance of this ideal stage. The model was calibrated against the baseline test results without coolant and it was then used to estimate the loss due to film-cooling. The estimated loss due to film-cooling was 3.0% at the design point, which corresponds to 0.3% per percent of coolant. The estimated repeatability (U95) for the efficiency measurement of the uncooled tur- bine geometry is ł 0.14%. Based on this measurement repeatability, the net effect of a design change can be determined with an uncertainty of just ł0.1% if four measurements are repeated for each design configuration. The estimated measurement uncertainty for the film-cooled stage efficiency is 0.55% and for back-to-back measurements the uncertainty is 0.45%.
Turbine Aerodynamic Performance Measurements in Short Duration Facilities
Author: G. R. GuenetteA Research Program on the Aerodynamics of a Highly Loaded Turbine Stage
Author: R. G. WilliamsonPublisher:
ISBN:
Category :
Languages : en
Pages : 17
Book Description
The paper brings together some of the main conclusions drawn from recent work in an on-going experimental program of research on the aerodynamics of a highly loaded turbine stage. Detailed data have been secured relating to the aerodynamic performance of transonic nozzles of high turning angle (tested with two different outer wall contours) and the influence of the stage environment on such measurements. Further work addressed rotor performance (as affected by blade loading), and also overall stage performance. The ultimate objective of the work is the extension of turbine design methods to regimes combining high stage loadings with high pressure ratios, with special emphasis on small blade sizes.
Aerodynamic Performance Measurements in a Transient Turbine Test Facility
Author: Nicholas Robert AtkinsPublisher:
ISBN:
Category : Gas-turbines
Languages : en
Pages : 420
Book Description
Aerodynamic Performance of a Ceramic-coated Core Turbine Vane Tested with Cold Air in a Two-dimensional Cascade
Author: Roy G. StabePublisher:
ISBN:
Category : Aircraft gas-turbines
Languages : en
Pages : 20
Book Description
Author: Robert E. Gray
Author: Léo Michel Grépin
Author: C. W. Haldeman