Due to the complexity of the flow and the difficulty of measuring heat transfer directly in gas turbines or even in turbine cascade, heat transfer coefficients have been extracted from data obtained in mass transfer measurements using the heat/mass transfer analogy. The present paper shows the validity of the heat/mass transfer analogy from separate heat transfer and mass transfer measurements on simulated turbine blades with equivalent experimental and geometric conditions. The Nusselt numbers from heat transfer experiments employing a constant temperature boundary condition are compared to the Sherwood number from mass transfer experiments employing a constant concentration boundary condition.
|Original language||English (US)|
|Number of pages||17|
|Journal||International Journal of Heat and Mass Transfer|
|State||Published - Oct 2008|
Bibliographical noteFunding Information:
The authors would like to acknowledge DOE for support. Thank the financial support (02-01-SR096), University Turbine System Research Program.
- Constant concentration
- Constant temperature
- Gas turbine
- Naphthalene sublimation
- The heat/mass transfer analogy
- Thermal boundary layer
- Turbine blade