Objective
The proposed project is devoted to the problem's solution of the optimal designing of thermal protection systems for extreme operating conditions. The project's authors offer to develop new complementary numerical and experimen-tal methods of investigation heat transfer in porous heat insulation materials. Those methods will allow identifying temperature and barometrical dependencies of effective heat conductivity coefficient of the materials with high accu-racy and lower costs.
The main objectives of the project are:
a) To develop complementary numerical and experimental methods of identification effective heat transfer of porous materials at transient heat transfer of samples in gaseous media of different pressure, using mathematical models of the combined heat transfer, theory of inverse problems, receptions of approximation of empirical dependencies;
b) To improve experimental installations, to prepare and to carry out thermal tests of samples with imitation of service conditions.
c) To identify, to compare and to analyse dependencies effective heat conductivity of porous materials for transient heat transfer of thermal protection in gaseous media of different pressure and to generalize results in a final report.
There are three main re-search directions in the frame of proposed project. First is devoted to development of algorithms of the inverse heat transfer problem solutions intended for processing of experimental data, an opportunity of their application in conditions of the radiative and conductive heat transfer and high rates of heating. The second direction is connected to development of methods of determination of effective heat conductivity coefficient of porous materials based on calculation separate making of heat transfer under the generalized conductivity theory and volumetric optical proper-ties under the modified Mie theory. On the third direction it is supposed to carry out modernization of the experimental equipment and arrangement for test of samples of heat insulation materials, an opportunity of research by their effective heat conductivity coefficient in a range of temperatures from 600 up to 2000 K, rates of heating up to 1000 K/s, in gaseous media of various mixtures and pressure from 1 up to 105Pa.
The significant expected results of this project are:
1) Computer codes for calculation of temperature distribution in the thermal protection systems from porous heat insulation materials, determination of pure heat conductivity coefficient of semi-transparent heat insulation materials by results of experiments, approximation of experimental data of effective heat conductivity co-efficient, calculation of volumetric optical properties of heat insulation materials;
2) Improved experimental installation for test heat insulation materials in the stationary and transient modes and determination their effective heat conductivity coefficient in a range of temperatures from 600 up to 2000 K, range of gaseous media pressure from 1 up to 105 Pa and different gaseous media mixtures;
3) Data on effective heat conductivity coefficient of perspective heat insulation materials and methods for their research in non-stationary conditions;
4) Technique of investigation of effective heat conductivity coefficient of porous heat insulation materials in the temperature from 600 to 2000 K, rate of heating up to 1000 K/s, gaseous media of various mixtures and pressure from 1 up to 105Pa.
Call for proposal
Data not availableFunding Scheme
Data not availableCoordinator
28361 Bremen
Germany