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Methods for the Preliminary Design of Heat Exchanger in Aircraft Engines

Schmelcher, Marc and Häßy, Jannik and Görtz, Alexander and El-Soueidan, Mahmoud (2023) Methods for the Preliminary Design of Heat Exchanger in Aircraft Engines. In: ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, GT 2023. ASME Turbo Expo 2023, 2023-06-26 - 2023-06-30, Boston, Massachusetts, USA. doi: 10.1115/gt2023-102959. ISBN 978-079188703-5.

Full text not available from this repository.

Abstract

The Water-Enhanced Turbofan (WET) is a promising approach to increase engine efficiency and to reduce emissions. For this concept, a Heat Recovery Steam Generator (HRSG) is required to evaporate and superheat liquid water before injecting it into the combustor. However, the integration of a HRSG into an aero engine has not been investigated in detail yet and the design specifications as well as metrics differ from state of the art, ground-based HRSG applications. Therefore, this paper presents methods and correlations that are combined to build a preliminary design tool for heat exchangers with evaporation. The resulting model is verified by a comparison to experimental heat exchanger studies. Finally, the model is used to assess a HRSG located downstream of the turbine section of a generic aero engine evaporating different water mass flows. The large differences in exhaust temperature and mass flow between cruise and take-off conditions outline the difficulty in finding a well balanced HRSG design.

Item URL in elib:https://elib.dlr.de/195836/
Document Type:Conference or Workshop Item (Speech)
Title:Methods for the Preliminary Design of Heat Exchanger in Aircraft Engines
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schmelcher, MarcUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Häßy, JannikUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Görtz, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
El-Soueidan, MahmoudUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2023
Journal or Publication Title:ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, GT 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.1115/gt2023-102959
ISBN:978-079188703-5
Status:Published
Keywords:WET, heat exchanger design, aircraft engines, evaporator
Event Title:ASME Turbo Expo 2023
Event Location:Boston, Massachusetts, USA
Event Type:international Conference
Event Start Date:26 June 2023
Event End Date:30 June 2023
Organizer:ASME
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: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Engine
Deposited By: Schmelcher, Marc
Deposited On:13 Nov 2023 08:41
Last Modified:24 Apr 2024 20:56

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