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DEVELOPING A FLEXIBLE THERMAL PROTECTION SYSTEM FOR MARS ENTRY: THERMAL DESIGN AND TESTING

Flinton, Alan and Merrifield, James and Johnstone, Emma and Hancock, Thomas and Underwood, John and Lingard, Stephen and Kaschnitz, Erhard and Schleutker, Thorn and Ritter, Heiko (2022) DEVELOPING A FLEXIBLE THERMAL PROTECTION SYSTEM FOR MARS ENTRY: THERMAL DESIGN AND TESTING. 2nd International Conference on Flight Vehicles, Aerothermodynamics and Re-entry Missions & Engineering (FAR), 19.-23.06.2022, Heilbronn, Deutschland.

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Abstract

Flexible Thermal Protection Systems (FTPS) are a key technology needed to enable novel inflatable and deployable aerodynamic decelerators. A development campaign is underway to raise the European FTPS technology readiness level from 2 to 3, advancing design and test capability. An FTPS suitable for a reference Mars landing mission is being designed. The FTPS has three functional layers: outer layers of Nextel 440 BF-20 fabric; insulation layers of SIGRATHERM GFA5 graphite felt and Pyrogel XTE aerogel; and a silicone-coated Kevlar fabric gas barrier. The density, specific heat capacity and thermal diffusivity of candidate materials was measured. Results were then used in thermal simulations to define a baseline layup. The layup thermal conductance was assessed in thermocouple-instrumented layup tests. Layups including joints were also tested and found not to have significantly different conductance. Layup test thermal simulations showed good agreement with the experimental data. Future work will include arc-jet tests and thermal model optimisation.

Item URL in elib:https://elib.dlr.de/191467/
Document Type:Conference or Workshop Item (Lecture)
Title:DEVELOPING A FLEXIBLE THERMAL PROTECTION SYSTEM FOR MARS ENTRY: THERMAL DESIGN AND TESTING
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Flinton, AlanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Merrifield, JamesUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Johnstone, EmmaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hancock, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Underwood, JohnUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lingard, StephenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kaschnitz, ErhardUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schleutker, ThornUNSPECIFIEDhttps://orcid.org/0000-0002-1833-2850UNSPECIFIED
Ritter, HeikoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2022
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:FTPS, Flexible TPS, Heat Shield
Event Title:2nd International Conference on Flight Vehicles, Aerothermodynamics and Re-entry Missions & Engineering (FAR)
Event Location:Heilbronn, Deutschland
Event Type:international Conference
Event Dates:19.-23.06.2022
Organizer:European Space Agency (ESA)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: Schleutker, Thorn
Deposited On:14 Dec 2022 07:49
Last Modified:14 Dec 2022 07:49

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