A. A. Kazakov et all. Systems of interval regu- lation of train traffic / A. A. Kazakov, V. D. Bubnov


COMPARATIVE ANALYSIS OF THE INFLUENCE OF THE SURFACE TENSION ON THE



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4.testing-i-v-characteristics-of-silicon-solar-panels-under-sunlight

 
COMPARATIVE ANALYSIS OF THE INFLUENCE OF THE SURFACE TENSION ON THE 
EFFICIENCY BY RECTIFICATION IN PRESENCE OF DEFOAMING AGENT SIHA SILICONE SE 
Karaivanova M. 
Assistant dr. 
University “Prof.D-r Asen Zlatarov” 
Bourgas, 8000, “Ykimov” Str.1 
 
 
Abstract 
Foam formation is unavoidable part in various technological processes. The extensive formation of foam 
might cause serious problems so special additives are used called “defoaming agents” or “defoamers” to subdue 
the formation of foam or eliminate the foam formed.
The aim of the present work is to study experimentally the influence of the anti-foam agent SIHA Silicone 
SE on the height of the gas-liquid layer, the change of the surface tension and, respectively, the degree of separation 
by the rectification of binary mixture methyl alcohol – water in laboratory column with one sieve plate.
As a result from the experimental and calculation procedures carried out, it was found that the presence of 
anti-foam agent gives decrease of the foam height 2 – 2.5 times while the values of the local efficiency are by 10% 
lower. This certainly confirms the fact that the lower foam height, i.e. the smaller interphase results in lower 
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