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IJPAP Vol.44(10) [October 2006] >


Title: Evaluation of thermal conductivity of ablative material
Authors: Sundaresan, N K
Ambirajan, A
Ramasamy, A
Gupta, P P
Bhandari, D R
Keywords: Thermal conductivity
Ablative material
Re-entry spacecraft
Issue Date: Oct-2006
Publisher: CSIR
IPC CodeG01N25/18
Abstract: Ablatives are very often used in the Thermal Protection System of re-entry spacecraft. Their thermal conductivity will play an important role in determining the temperatures of components and payloads during the on-orbit and re-entry phases on the mission. A series of calorimetric tests were conducted on these materials to ascertain their thermal conductivity. A description of the experiments and the results of analyses of the experimental temperature data from the ablatives are presented in this paper. Three-dimensional mathematical model of the experiment was developed and analysed. The thermal conductivity of two ablative samples is determined by manually minimising the root sum of squares error (RSSE) between experimental and numerical data. The results obtained using this technique are compared with the results of a one-dimensional analysis.
Page(s): 719-723
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.44(10) [October 2006]

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