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Development of a Predictive Model for Preliminary Gas Turbine Blade Cooling Design and Analysis

Schöffler, Robin and Brakmann, Robin and Grunwitz, Clemens (2022) Development of a Predictive Model for Preliminary Gas Turbine Blade Cooling Design and Analysis. Deutscher Luft- und Raumfahrtkongress 2022, 2022-09-27 - 2022-09-29, Dresden, Deutschland.

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Improvements in turbine blade cooling are crucial in order to increase the thermal efficiency of modern gas turbines. Designing highly efficient cooling concepts and evaluating their impact on the thermodynamic cycle performance during early design phases is therefore becoming increasingly important. The cooling air requirements are commonly approximated using simplified empirical correlations which cannot represent future-oriented cooling designs with sufficient accuracy. In the current work, a simplified yet physics-based predictive model for turbine blade cooling design and analysis has been developed. The model is capable of calculating the material temperature distribution along the blade surface as well as the coolant mass flow rate. Commonly used cooling correlations are implemented which can further be supplemented by novel cooling techniques due to the modular structure. The model is used to create a cooling design for the first stage high pressure turbine nozzle guide vane of the DLR's ultrahigh bypass ratio engine concept. A detailed analysis of the cooling concept is presented to demonstrate the capabilities of the developed tool.

Item URL in elib:https://elib.dlr.de/191854/
Document Type:Conference or Workshop Item (Speech)
Title:Development of a Predictive Model for Preliminary Gas Turbine Blade Cooling Design and Analysis
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schöffler, RobinUNSPECIFIEDhttps://orcid.org/0000-0002-0931-9021UNSPECIFIED
Brakmann, RobinUNSPECIFIEDhttps://orcid.org/0000-0003-3598-0742UNSPECIFIED
Grunwitz, ClemensUNSPECIFIEDhttps://orcid.org/0000-0003-4157-7415UNSPECIFIED
Date:September 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Jet Engine; Turbine; Cooling Design
Event Title:Deutscher Luft- und Raumfahrtkongress 2022
Event Location:Dresden, Deutschland
Event Type:national Conference
Event Start Date:27 September 2022
Event End Date:29 September 2022
Organizer:Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Future Engines and Engine Integration, L - Components and Emissions
Location: Göttingen
Institutes and Institutions:Institute of Propulsion Technology > Turbine
Deposited By: Schöffler, Robin
Deposited On:09 Jan 2023 09:23
Last Modified:24 Apr 2024 20:53

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