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Thermal Management Concept Evaluation for a High-Altitude Solar Platform

Beneitez Ortega, Cristina and Zimmer, Dirk and Weber, Patrick (2021) Thermal Management Concept Evaluation for a High-Altitude Solar Platform. Aerospace Europe Conference 2021, 23-26 Nov 2021, Warsaw, Poland.

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High Altitude Long Endurance (HALE) aircraft operate under adverse thermal conditions, with air temperatures very low and at the same time high amounts of heat introduced by sun radiation. Thus, thermal management of the aircraft systems, such as electronics and battery is a very challenging task. A first step in solving this is generating accurate models of the thermal dynamics of the HALE. This paper presents the thermal analysis of a solar-electric stratospheric HALE. For such an analysis, a thermal mathematical model based on first principles was developed. In a further step, an initial test campaign was performed. The test campaign included static and dynamic temperature measurements on a segment of the aircraft's wing structure. The experiments throughout this test campaign showed good compliance of the results with the previously derived mathematical models, with differences of less than 5◦C between the measured and simulated temperature curves.

Item URL in elib:https://elib.dlr.de/146220/
Document Type:Conference or Workshop Item (Lecture)
Title:Thermal Management Concept Evaluation for a High-Altitude Solar Platform
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Beneitez Ortega, CristinaCristina.BeneitezOrtega (at) dlr.deUNSPECIFIED
Zimmer, DirkDirk.Zimmer (at) dlr.deUNSPECIFIED
Weber, PatrickPatrick.Weber (at) dlr.deUNSPECIFIED
Date:15 October 2021
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Thermal management, UAV, green aviation, space design
Event Title:Aerospace Europe Conference 2021
Event Location:Warsaw, Poland
Event Type:international Conference
Event Dates:23-26 Nov 2021
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Unmanned Aerial Systems
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control
Deposited By: Beneitez Ortega, Cristina
Deposited On:08 Dec 2021 11:24
Last Modified:12 Jan 2022 10:55

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