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Porous Insulation Performance Under Martian Environment
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English
Abstract
The future deployment of a network of measurement stations on the surface of MARS is presently prepared. The MARS environment is characterised by large daily and seasonal temperature fluctuations in low density atmosphere with carbondioxide as its main constituent. Typical environmental conditions for some locations are presented.
Due to geometrical and mass constraints highly efficient and reliable thermal insulations are required for the thermal control of MARS stations which are powered by solar energy. ERNO has investigated the thermal performance of two candidate porous insulations in the frame of an ESTEC technology contract.
The paper presents methods to predict the heat transfer modes of both insulations in a Martian environment analytically. Experimental measurements have been performed and evaluated in order to validate the analytical predictions.
Based on these results the insulation design concept is reviewed. Some mechanical test results, representative of the landing loads are given in addition.
Authors
Citation
Fischer, W., Ebeling, W., Haase, B., and Keller, K., "Porous Insulation Performance Under Martian Environment," SAE Technical Paper 932116, 1993, https://doi.org/10.4271/932116.Also In
References
- MARSNET Assessment Study Report ESA Publication SCI 91 6
- Martian Environment Definition and Lander Thermal Analysis TB OT221 55/92 Haase B.
- Insulation Performance Assessment AN OT223 157/92 Fischer W.
- Thermal Environment and Thermal Control Aspects for MARS Lander Reich G. Scoon G.E.N. 23rd ICES Conference Colorado Springs 1993
- Thermal and Albedo Mapping of MARS Kieffer H.H. et al JGR 82 4289
- Thermal Radiation Heat Transfer 2nd 1981 Siegel Robert Howell John R.
- Radiative heat transfer in insulations with random fiber orientation Mathes R. Blumenberg J. Keller K. Int. J. Heat Mass Transfer 33 (4) 1990