Open AccessExperimental Investigation of Heterogeneous Power Systems on the Basis of Lyophobic Liquids and Porous Media
Author(s) -
V. D. Borman,
V. N. Tronin,
A. A. Belogorlov,
A. M. Grekhov,
Vladimir Konyukov,
Vladimir Krainyukov,
G. F. Resh,
M. I. Ivanov
Publication year - 2014
Publication title -
nauka i obrazovanie
Language(s) - English
Resource type - Journals
ISSN - 1994-0408
DOI - 10.7463/0514.0711242
Subject(s) - porous medium , basis (linear algebra) , porosity , materials science , chemical engineering , composite material , engineering , mathematics , geometry
The use of non-traditional ways for energy accumulation (absorption) is a reserve to increase efficiency of accumulating and damping devices. The work is aimed at experimental and theoretical verification of possibility to create the accumulating and energy damping devices based on the heterogeneous systems (HS). The HS includes a couple i.e. a porous body (silochromes) with pore diameter from 20 nm to 360 nm) and a lyophobic (non-wetting) liquid (Wood's alloy). The paper briefly presents provisions of the theory of processes in HS based on the kinetics of percolation transition that allows us to calculate power, power and temporary characteristics of devices and prove the methods for choosing the couples for HS with the specified characteristics. It explains effect of hysteresis function of changing liquid volume that fills a porous body and outflows from it under the differential pressure, as well as conditions to realize effect of non-outflowing liquid after removal of the differential pressure thanks to which energy accumulation in HS is possible. The stand diagram, device parameters to study static and dynamic processes in HS, and measurement system characteristics are provided. Research results of static processes to fill (outflow) pores of various silochromes with Wood's alloy are presented. It is shown that among considered HS the most efficient one is the HS possessing S-120 silochrome, hexamethyldisilazane-modified. The certain filling pores specific energy of HS made 71 J/g, while the outflow specific energy was 28 J/g. The paper presents a scheme of device model damping a force impact on the support. Test results of spring and hydraulic dampers and the model, as well, with HS based on silochromes with various lyophobic liquids are given. High HS efficiency that allows the 4 times less impact value is shown. Further researches concern a development of engineering techniques to design and optimize the HS parameters and a choice of the most effective couples in HS. Results of work can find application in space engineering to create damping and synchronization systems of design components movement, in fuel-feed systems of MEMS engines, and in solving the problems of power systems miniaturization when creating nano- and pico-satellites