Design and Cooling Performance of Additively Manufactured Ceramic Turbine VanesSource: Journal of Turbomachinery:;2024:;volume( 146 ):;issue: 006::page 61007-1Author:Fox, Andrew
,
Lynch, Stephen
,
Young, Jason C.
,
Frick, Carl P.
,
Hankins, Jennifer
,
Kuhn, Kyle
,
Brinckmann, Stephan A.
,
Fertig, Ray S.
DOI: 10.1115/1.4064226Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ceramic materials are of significant interest in aviation and power generation gas turbine engines due to their low density and ability to withstand high temperatures. Increased cycle thermal efficiency and higher specific power output is possible by incorporating ceramic components that enable high turbine inlet temperatures and lower required cooling airflow levels. However, ceramics can be difficult and costly to form into the complex shapes used in gas turbine components, often requiring specialized multi-step processes. Furthermore, ceramic components in the hottest areas of a gas turbine, such as vanes or blade shroud seals, will still likely require cooling which is challenging to implement in conventional ceramic manufacturing approaches. Therefore, this study presents a multidisciplinary approach that investigates the design, fabrication, and overall cooling effectiveness evaluation of additively manufactured (AM), polymer derived ceramic (PDC) turbine vanes. A thermo-mechanically optimized vane design was generated, ceramic additive manufacturing of the complex cooling configuration was developed, and quantification of the increase in overall cooling effectiveness was performed in a 1X scale, high-speed facility using infrared thermography. This study produced a PDC AM process, capable of printing complex internal cooling schemes in 1X scale turbine vanes. It was found that the optimized vane more than doubled the overall cooling effectiveness observed in the baseline design, which reasonably agreed with thermomechanical optimization model predictions. Additionally, the optimized ceramic vane outperformed an identical metal vane, in terms of area averaged cooling effectiveness, suggesting that the ceramic vane could operate at reduced coolant flowrates to achieve comparable levels of cooling performance.
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contributor author | Fox, Andrew | |
contributor author | Lynch, Stephen | |
contributor author | Young, Jason C. | |
contributor author | Frick, Carl P. | |
contributor author | Hankins, Jennifer | |
contributor author | Kuhn, Kyle | |
contributor author | Brinckmann, Stephan A. | |
contributor author | Fertig, Ray S. | |
date accessioned | 2024-04-24T22:50:53Z | |
date available | 2024-04-24T22:50:53Z | |
date copyright | 1/29/2024 12:00:00 AM | |
date issued | 2024 | |
identifier issn | 0889-504X | |
identifier other | turbo_146_6_061007.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4295980 | |
description abstract | Ceramic materials are of significant interest in aviation and power generation gas turbine engines due to their low density and ability to withstand high temperatures. Increased cycle thermal efficiency and higher specific power output is possible by incorporating ceramic components that enable high turbine inlet temperatures and lower required cooling airflow levels. However, ceramics can be difficult and costly to form into the complex shapes used in gas turbine components, often requiring specialized multi-step processes. Furthermore, ceramic components in the hottest areas of a gas turbine, such as vanes or blade shroud seals, will still likely require cooling which is challenging to implement in conventional ceramic manufacturing approaches. Therefore, this study presents a multidisciplinary approach that investigates the design, fabrication, and overall cooling effectiveness evaluation of additively manufactured (AM), polymer derived ceramic (PDC) turbine vanes. A thermo-mechanically optimized vane design was generated, ceramic additive manufacturing of the complex cooling configuration was developed, and quantification of the increase in overall cooling effectiveness was performed in a 1X scale, high-speed facility using infrared thermography. This study produced a PDC AM process, capable of printing complex internal cooling schemes in 1X scale turbine vanes. It was found that the optimized vane more than doubled the overall cooling effectiveness observed in the baseline design, which reasonably agreed with thermomechanical optimization model predictions. Additionally, the optimized ceramic vane outperformed an identical metal vane, in terms of area averaged cooling effectiveness, suggesting that the ceramic vane could operate at reduced coolant flowrates to achieve comparable levels of cooling performance. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Design and Cooling Performance of Additively Manufactured Ceramic Turbine Vanes | |
type | Journal Paper | |
journal volume | 146 | |
journal issue | 6 | |
journal title | Journal of Turbomachinery | |
identifier doi | 10.1115/1.4064226 | |
journal fristpage | 61007-1 | |
journal lastpage | 61007-10 | |
page | 10 | |
tree | Journal of Turbomachinery:;2024:;volume( 146 ):;issue: 006 | |
contenttype | Fulltext |