TY - JOUR
TI - Determination of distribution of heat-conducting material concentration in protective layer of thermal protection system panel
AU - Brodzik Lukasz
AU - Frackowiak Andrzej
JN - Thermal Science
PY - 2019
VL - 23
IS - 14
SP - 1025
EP - 1034
PT - Article
AB - Paper presents the problem of heating the damaged insulation of an orbiter.  Changes of the insulation's thermal properties, made by adding conductive  material of high value of specific heat in a form of a dope to the  protective layer, were examined. An iterative algorithm determining a  variable of dope concentration in the material was developed. Insulating  material LI900 was used for calculations. Determination of distribution of  conductive material concentration was made for materials which, after  verification, demonstrated the most beneficial effect on protective  properties of the modified insulation layer. Change of properties was to  enable time extension of the LI900 insulation tile heating up to the maximal  temperature and, additionally, to lowering this temperature.