- Constructive blocks with CEA giperteploprovodyaschimi bases
November 3, with the cosmodrome "Baikonur" launched two satellites — communication satellite "Yamal-300K" and "Luch-5B", produced by JSC "ISS" Zheleznogorsk and staffed giperteploprovodyaschimi sections (GPTS) Plant electrochemical energy converters (EPZs) — a subsidiary of JSC "Ural Electrochemical Integrated Plant" (enterprise Fuel Company of Rosatom "fuel elements").
Giperteploprovodyaschie section (GPTS), or mini-heat pipes provide optimal thermal conditions on-board radio equipment at its minimum weight. GPTS consists of a stack of miniature heat pipes are enclosed in a sealed housing. Developed products allow for the transfer of thermal power up to 50 W of the evaporation zone (heating) to the condensation zone (cooling) of the temperature difference less than 20 degrees Celsius in the operating range of 180 degrees to 600 degrees. GTPS resistant to vibration, shock and ionizing radiation of outer space.
Development began in the EPZs GPTS UEIP in 2005 under a contract with JSC "Information Satellite Systems (ISS)" Zheleznogorsk jointly with the Institute of Computational Modeling, Siberian Branch of the Russian Academy of Sciences (Krasnoyarsk). A collaboration was established mathematical model of the future product, selected coolant, developed technology of formation of special porous media and manufacturing GTPS. All solutions are innovative, all — patented.
Prior to that, in December 2011 from the Baikonur "Plesetsk" was launched two satellites — communication satellite "AMOS-5" and "Ray-5", staffed GPTS EPZ production of "UEIP" Thus, at the moment there are 4 in orbit satellite operation which provides products including subsidiary UEIP.
Giperteploprovodyaschie porous structures in blocks of electronic equipment spacecraft
Create dolgoresursnyh spacecraft (SC) with a lifetime of 15 years or more requires, inter alia, provide a stable and comfortable thermal conditions on-board electronics (CEA).
One of the promising areas to increase the efficiency of heat dissipation in the side of CEA spacecraft is used as structural components of spacecraft giperteploprovodyaschih porous structures (GTPS). They are flat, thin sealed structure comprising a porous material — wick with liquid working substance — coolant (ammonia water, etc.), and channels for vapor transport (Figure 2). Heat transfer in such designs due to the energy from the phase transition of flow (vapor) from the heating region to the back region and condensing (in liquid form) in the wick. Effective thermal conductivity of this design on dozens of times higher than the thermal conductivity of aluminum.
In the ICM SB RAS in the framework of the Federal Target Program "Global Navigation Satellite System" together with the Ural Electrochemical Plant in the interests of JSC "Information Satellite Systems" to them. Acad. Reshetnev developed, tested and put into pilot production units konstruktivy CEA with giperteploprovodyaschimi bases (Fig. 3). Having the weight and size characteristics similar to the previously used aluminum bases, they can reduce the temperature gradient in the 5? 7 times with an increase in heat 5 times (up to 100 W) and at the same time ensure uniformity of temperature distribution in the range of 2 C.
The results allow to begin putting in GTPS currently under development design heat load board CEA advanced spacecraft JSC "ISS".