Experimental studies and verification of the radiative model of the infrared irradiator IET-29 based on the results of its thermal vacuum tests


Аuthors

Ulyanov V. A.*, Polyakhov A. D.**, Savchuk P. N.

Federal State Enterprise "Research and Testing Center for the Rocket and Space Industry", Peresvet, Russian Federation

*e-mail: osduka@rambler.ru
**e-mail: alekdmitrpol@gmail.com

Abstract

In order to ensure the thermal and vacuum testing of the E-2 product, experimental studies were carried out of the group source of infrared radiation of the VK600/300 thermal vacuum chamber of the Federal State Enterprise "Research Center of the Russian Communist Party", made on the basis of IET-29 irradiators. The following results were obtained:
–  a method for processing experimental data was developed, which made it possible to compare the results of experiments conducted with different irradiators at different values of the electrical power supplied to them;
–  the procedure provided reliable information necessary for verification of the radiator radiator model;
–  a list of experiments has been determined, the results of which will form the basis for verification of the radiator's emissivity model;
–  the spatial distribution of radiant fluxes does not depend on the electric power supplied to the irradiator;
–  spatial distribution of radiant fluxes is characterized by the absence of interdependence of the irradiation distribution in the longitudinal and transverse planes of the irradiator;
–  it is advisable to carry out further studies using the results of measurements of the heat flux density distribution obtained in experiments with the maximum electric power supplied to irradiators;
–  the distribution of radiant fluxes in the transverse plane does not change within the displacement along the longitudinal axis of the irradiator at a distance of ± 2000 mm from its center;
–  the illumination boundaries in the main transverse plane are ±1060 mm;
–  the illumination boundaries in the main longitudinal plane are ±2000 mm;
–  the dependence of the heat flux density on the electric power supplied to the irradiator is nonlinear. Further work should be aimed at verifying the developed radiator radiator model, including the solution of problems to determine:
–  the height of the suspension of the radiating element above the protrusion of the reflector;
–  the actual relative location of irradiators and means for measuring radiant fluxes during experiments;
–  determination of the energy characteristics of the irradiator.

Keywords:

infrared radiation simulator; irradiator; radiating element; reflector, radiative model; spatial distribution of radiant fluxes; thermal vacuum tests

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