A NEWLY-DESIGNED NANO–FLUID BATIO3 ETHANOL SYSTEM FOR MODERN ELECTROMAGNETIC ABSORPTION APPLICATIONS

Authors : Burak KARAKAŞ, Selçuk HELHEL

Pages : 125-140

View : 12 | Download : 4

Publication Date : 2018-12-30

Article Type : Research Paper

Abstract :Electrical shielding effectiveness insert ignore into journalissuearticles values(ESE); has become a popular research topic after EM waves have begun to be used in our everyday lives. Although the absorption and reflection of electromagnetic energy are those two basic methods used, the efficient techniques used in shielding are based on suppressing the reflection of EM waves and increasing the absorption of energy. This study has focused on BaTiO 3 -ethanol nano–fluid as an absorber. Absorbing fluid/material was prepared by means of magnetic stirring, heating and ultrasonic bathing methods then the tubings that is going to behave as shielding screen insert ignore into journalissuearticles values(SS); were filled with this nano–fluid material. Transmission Line Method insert ignore into journalissuearticles values(TLM); was preferred to obtain reflection, transmission and absorption coefficients of ESE by means of S 11 and S 21 . Fluid speed and its temperature have a potential to change the performance of ESE that it has been observed that increasing flow rate from 0 ml/min to 500 ml/min results in 12% increase in shielding effectiveness at low fluid temperature insert ignore into journalissuearticles values(30 0 C);. In the second case which measurements repeated at high fluid temperature insert ignore into journalissuearticles values(60 0 C); it is seen that 1.05% increase in shielding effectiveness while flow rate increased from 0 ml/min to 500 ml/min.
Keywords : Nanofluid, nanotechnology, electromagnetic shielding, scattering parameters, dielectric material