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Esser, Burkard and Gülhan, Ali and Kuhn, Markus (2007) Thermal qualification of transpiration cooling for atmospheric entry. In: Proceedings of the 1st CEAS European Air and Space Conference, pp. 3205-3210. 1st CEAS European Air and Space Conference, 2007-09-10 - 2007-09-13, Berlin (Germany).
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Abstract
In the arc heated facility LBK a transpiration cooling concept based on porous CMC material was qualified for application in external hypersonic flow, in particular for atmospheric entry. The experimental setup allowed a direct comparison of the thermal behaviour of transpiration cooling to a well-qualified passive thermal protection technology. Tests were performed for different coolants at various flow rates in order to identify the influence on cooling efficiency. Nitrogen, argon and helium were used as coolants. It was found that for a given configuration there is an optimal coolant flow rate for each coolant. These optimal coolant flow rates could be identified and compared for all coolants used.
| Item URL in elib: | https://elib.dlr.de/52439/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
| Title: | Thermal qualification of transpiration cooling for atmospheric entry | ||||||||||||
| Authors: |
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| Date: | 10 September 2007 | ||||||||||||
| Journal or Publication Title: | Proceedings of the 1st CEAS European Air and Space Conference | ||||||||||||
| Refereed publication: | No | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Page Range: | pp. 3205-3210 | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | atmospheric entry, thermal protection, high enthalpy flow, arc heated facility, active cooling, transpiration | ||||||||||||
| Event Title: | 1st CEAS European Air and Space Conference | ||||||||||||
| Event Location: | Berlin (Germany) | ||||||||||||
| Event Type: | international Conference | ||||||||||||
| Event Dates: | 2007-09-10 - 2007-09-13 | ||||||||||||
| Organizer: | Deutsche Gesellschaft für Luft- und Raumfahrt e.V. | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||
| HGF - Program: | Space (old) | ||||||||||||
| HGF - Program Themes: | W RP - Raumtransport | ||||||||||||
| DLR - Research area: | Space | ||||||||||||
| DLR - Program: | W RP - Raumtransport | ||||||||||||
| DLR - Research theme (Project): | W - Grundlagen Raumtransport - Innovativer Thermalschutz (old) | ||||||||||||
| Location: | Köln-Porz | ||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology | ||||||||||||
| Deposited By: | INVALID USER | ||||||||||||
| Deposited On: | 20 Dec 2007 | ||||||||||||
| Last Modified: | 27 Apr 2009 14:35 |
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