Effusion cooling represents one of the most innovative techniques to limit and control the metal temperature of combustors liner, and recently, attention has been paid by the scientific community on the characterization and the definition of design practices of such devices. Most of these studies were focused on the heat transfer on the hot side of effusion cooling plates, while just few contributions deal with the effusion plates cold side convective cooling. This paper reports a numerical survey aimed at the characterization of the convective cooling at the effusion plates cold side. Several effusion holes spacing is accounted for in conjunction with representative operating conditions. The study led to the development of an empirical correlation for the prediction of the cold side heat transfer coefficient enhancement factor, EF: it expresses the EF related to each extraction hole as a function of the pressure ratio β and the effusion plate porosity factor σ.
Heat Transfer Enhancement Due to Coolant Extraction on the Cold Side of Effusion Cooling Plates
Contributed by the Turbomachinery Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received April 25, 2015; final manuscript received May 20, 2015; published online July 14, 2015. Editor: David Wisler.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Da Soghe, R., Andreini, A., Facchini, B., and Mazzei, L. (July 14, 2015). "Heat Transfer Enhancement Due to Coolant Extraction on the Cold Side of Effusion Cooling Plates." ASME. J. Eng. Gas Turbines Power. December 2015; 137(12): 122608. https://doi.org/10.1115/1.4030837
Download citation file:
- Ris (Zotero)
- Reference Manager