Центральная Научная Библиотека УрО РАН

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   T 44


    The loop heat pipe experiment on board the GRANAT spacecraft / A. A. Orlov, K. Goncharov, E. Y. Kotiarov, T. A. Tyklina, S. N. Ustinov, Yu. F. Maydanik // 6th European Symposium on Space Environmental Control Systems: Noordwijk, Netherlands, 20-22 may 1997 . - 1997. - Vol. 400. - С. 341-353

ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LOOP HEAT PIPES -- ALYONA -- EXPERIMENTAL SYSTEM
Аннотация: Results of the most durable Russian on-orbit experiment with the Loop Heat Pipe are analyzed in present paper. All telemetry data on temperature measurements obtained from the experimental system ALYONA during its performance period from 1989 till 1996 are compared. Estimation of the LHP operation ability during the whole period mentioned above and determination of the calculated value of transferred heat power were executed with taking into account the boundary conditions characterizing the operation mode of the experimental system ALYONA. Some results of on-ground testing, real characteristics of radiating surfaces coating and, also, the scientific spacecraft GRANAT orientation data were taken into account for analyzing. Necessary information on the Loop Heat Pipe design, used materials, preliminary on-ground testing is presented. Besides this, the information that allows to make a conclusion on the successful Loop Heat Pipe re-starting modes occurring when the spacecraft comes into the shade zone and to judge on the LHP life time is also presented. Documents provided by different LAVOCHKIN ASSOCIATION sen ices and divisions controlling the communication data obtained from the spacecraft were used for this paper preparation

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   F 17

    Faizullin, M. Z.
    Preparation of gas hydrates by nonequilibrium condensation of molecular beams / M. Z. Faizullin, A. V. Vinogradov, V. P. Koverda // Technical Physics Letters . - 2013. - Vol.39, №9. - С. 783-786. - Bibliogr. : p. 786 (16 ref.)

ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CARBON DIOXIDE -- CRYSTALLIZATION TEMPERATURES -- DIELECTRIC PROPERTIES
Аннотация: Layers of amorphous ice saturated with carbon dioxide were prepared by the deposition of molecular beams of water and gas onto a substrate cooled with liquid nitrogen. Their heating is accompanied by glass transition (softening) and subsequent spontaneous crystallization. The glass transition and crystallization temperatures were determined from the change in dielectric properties during heating. The heat effects of the transformations were detected using differential thermal analysis. The crystallization of amorphous layers under conditions of deep metastability leads to the formation of crystalline hydrates. The avalanche nucleation of crystallization sites captures the gas molecules; therefore, they are not displaced by the movement of the crystallization front

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