Heat Transfer in Porous Insulations DASA/ERNO Raumfahrttechnik GmbH

Format:

Conference/Event

Author/Creator:

Ebeling, W. -D, author.

Conference Name:

International Conference On Environmental Systems (1994-06-20 : Friedrichshafen, Germany)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1994

Summary:

When gas conductance/natural convection plays a major role as heat transfer path, microporous insulations reveal distinct advantages compared to Multi-Layer Insulations (MLI). For re-entry vehicles as e. g. HERMES or capsules silica and ceramic microfiber insulations have been investigated by DASA/ERNO in a temperature range up to 650 °C or, respectively, up to 1200 °C. In the frame of an ESTEC funded study three types of microporous insulations - microfiber, microsphere and polyimide foam - have been analytically and experimentally investigated as candidates for the internal insulation of a MARS-lander in a carbon-dioxide atmosphere for temperatures ranging from - 110 °C to 50 °C. This paper compares the test results with analytical heat transfer calculations and describes methods to improve the thermal insulation performance

Notes:

Vendor supplied data

Publisher Number:

941513

Access Restriction:

Restricted for use by site license