05. Department of Materials aerospace technique

RESEARCH OF HEAT-PROTECTIVE COATINGS FOR REUSABLE AEROSPACE SYSTEMS ON SHU-7 SOLAR POWER PLANT

Resource tests of heat-protective block with coating from the YIPM alloy using the SGU-7 with diameter of mirror 5 (a). Computer record of temperature distribution on thickness of heat-protective block (b): 1 – surface temperature; 2 – on distance of 15 mm from a surface; 3 – 25 mm, 4 – 41 mm; 5 and 6 temperature of a substrate from alloy АМГ-6, 48 mm.

These experiments were conducted according to the instructions of the European Space Agency.

THERMOPHYSICAL INVESTIGATIONES OF MATERIALS IN WIDE RANGES OF TEMPERATURES AND HEATING RATES

Resource tests and definition of radiating ability of a metal heat-protection at convective heating in the gas generator jet. The testing mode: Fuel pair - kerosene-air; Pressure in combustion chamber - 0.8 МPа; Oxidizer surplus factor - 1.8; Speed of gas stream - 1100 m/c; Diameter of specimens - 15 mm; Temperature of heating surface of specimen - 1100±30 °C

TRIBOTECHNICAL TESTS OF MATERIALS IN CONDITIONS OF VACUUM AND LOW TEMPERATURES

Schematic of Uran-T installation: 1 – vacuum chamber; 2 - quartz window, 3 - ellipsoid a reflector radiating heater, 4 - xenon ДКСШРБ-10000 lamp, 5 - flow of light beams, 6 - focal zone of installation, 7 - jalousie, 8 - turbomolecular pump, 9 - mechanical vacuum pump, 10, 11 - vacuum valve, 12 - vacuum slide valve, 13 - Dewar vessel, 14 - pipeline of liquid and gaseous nitrogen giving, 15 - thermal protection, 16 - leak, 17 - radiating screen cooled by nitrogen.

NEW GAS-THERMAL METHOD OF SPRAYING OF COATINGS – HIGH-SPEED AIR-FUEL SPRAYING

For the first time the high-speed method of air-fuel spraying puts coatings from Ni-Al intermetallic systems.

These coatings are perspective for their using in aerospace engineering and energy engineering at the high temperatures. They are characterized by the high values of heat resistance, stability to the carbide formation, hydrogen and sulfide stress cracking at the high temperatures, high temperature strength and low density.

The coating has been received by “Grad BM” burner with consumption control of the parameters of two phase flow which realises developed in IPMS NAS of Ukraine.

The thickness of the coatings is about 100-800 µm, porosity is not more than 0.5 %; adhesion strength is not less than 40 MPa, micro hardness (Нμ ) is not less than 7.0 GPa.

RECEPTION OF HYDROGEN BY IRON-STEAM METHOD AND THERMAL PROCESSING OF INDUSTRIAL WASTES WITH USE OF CONCENTRATED SOLAR ENERGY

Test of a hydrogen reactor and the water evaporator on SGU-7 solar power plant СГУ-7 with diameter of a mirror 5 m.

TRANSFORMATION OF SOLAR ENERGY IN THERMAL AND ELECTRIC (It is carried out together with IMP NAS of Ukraine and NTUU «KPI»)

At cathode temperature of 300-400 °С on electrodes there is a pressure which reaches 2-3 V, and an emission current – 0,05-0,1 А/см². The emission current reaches the maximum value (nearby 0,1 А/см²) at cathode temperature of 400 °С.

RESEARCH OF SOLAR COLLECTOR CHARACTERISTICS BASED ON HEAT-PIPES FOR HEATING OF WATER AND POWER SUPPLY

Two-loop scheme of thermal (a) and (b) hybrid collectors on based heat pipes installation functioning within the electric and hot water supply system of an individual residential house: 1 - solar collector; 2 - boiler (125 L); 3 - controller; 4 - pump group; 5 - pneumatic tank; 6 - consumer (shower, amalgamator). For hybrid cjllector (b): 7 – charge controller (provides control of charge/discharge of the battery and functioning of the whole electric part of the system); 8 – storage batteries set; 9 – inverter (direct-alternating current transformer); 10 – consumer line of electric power (pump group and the solar system controller, computer, illumination, TV-set, satellite aerial, refrigerator, etc.). For thermal collector (a): 7 – АЦП "Oven" МВА8; 8 – network adapter RS485/USB; 9 – computer; 10 – gauges.