scholarly journals Исследования диэлектрических свойств нефтяных дисперсных систем в зависимости от соотношения асфальтосмолистых веществ

2022 ◽  
Vol 48 (4) ◽  
pp. 41
Author(s):  
Р.Р. Зиннатуллин ◽  
Л.А. Ковалева
Keyword(s):  
Molecular Weight ◽  
Electromagnetic Field ◽  
Dielectric Properties ◽  
Radio Frequency ◽  
High Molecular Weight ◽  
Experimental Studies ◽  
Frequency Range ◽  
Dielectric Parameters ◽  
Dispersed Systems ◽  
Polar Components

The degree of influence of the electromagnetic field on oil dispersed systems depends on the dielectric properties of these systems, in particular oil. Dielectric properties of oil depend on the content of high molecular weight polar components: asphaltenes and resins. In this regard, a study was carried out of the dielectric properties of oil in the radio-frequency range, depending on the content of asphalt-resinous substances in it. The obtained results of experimental studies show the correlation of dielectric parameters with the ratio of the content of resins and asphaltenes in oil.

Effect of Fungicide Treatment on Dielectric Properties of a Vegetable Seed

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Vishal Singh Chandel ◽  
Atiq UR Rahmanm ◽  
J. P. Shukla ◽  
Rajiv Manohar ◽  
Mohd. Shafi Khan
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Dielectric Loss ◽  
Moisture Content ◽  
Considerable Change ◽  
Frequency Range ◽  
Dielectric Parameters ◽  
Hewlett Packard ◽  
Fungicide Treatment ◽  
Vegetable Seed

Effect of fungicides' (thiram, captan, carbendazim, bagalol) treatment on dielectric constant and dielectric loss of a vegetable seed, namely the brinjal at given moisture content and bulk density was examined using Hewlett-Packard (HP-4194A) impedance/gain phase analyzer over the frequency range of 0.01 to 10 MHz and temperature range of 30-450C. Julabo (temperature controller, F-25, Germany) was used for keeping the temperature of seeds constant. Study showed that fungicide treatment cast considerable change in dielectric parameters namely the dielectric constant and dielectric loss.

scholarly journals Dielectric Properties and Substantiation of Electromagnetic Technologies for Oil Sludge Processing

2020 ◽  
Author(s):  
Eldar Rinatovich Abdeev ◽  
Minikhan Abuzarovich Fatykhov ◽  
Rail Idiatovich Saitov ◽  
Rinat Gazizyanovich Abdeev ◽  
Lenart Minnehanovich Fatykhov
Keyword(s):  
Electromagnetic Field ◽  
Dielectric Properties ◽  
Atmospheric Oxygen ◽  
Experimental Studies ◽  
Solid Particles ◽  
Oil Sludge ◽  
Water Contact ◽  
Long Term Storage ◽  
Oil Storage ◽  
Oil Water

In the process of reception, storage and preparation of oil for processing, significant volumes of oil-containing sludge are formed, which are not only a source of pollution, but also a valuable hydrocarbon feedstock. Long-term storage of oil with water, contact with atmospheric oxygen, and the presence of solid particles hydrophobized with asphalt-resinous and paraffinous substances contribute to the formation of “intermediate layers” in these sludges, which are ultra-stable oil-water emulsions. It is proposed to use the energy of the electromagnetic field of the high and microwave ranges when developing a technology for the destruction of oil-water emulsions. After analyzing the composition of the oil sludge, experimental studies were conducted of the dielectric loss tangenttgδδ of oil with the addition of sand and paraffin, depending on the frequency of electromagnetic oscillations in the range of 30 - 160 MHz and temperature in the range of 25 - 80 ∘ С using the cumeter method. Studies have shown that two technologies for the disposal of oil sludge are possible: HF and UHF methods. To assess the effectiveness of their application, it is necessary to conduct experimental studies of the dielectric properties of oil sludge. Keywords: oil sludge, oil sludge disposal,oil storage, oil-water emulsions, electromagnetic field

scholarly journals COMPACT FLUORESCENT LAMPS AS SOURCES OF ELECTROMAGNETIC FIELDS OF RADIO- FREQUENCY RANGE (EXPERIMENTAL STUDY)

2019 ◽  
pp. 59-62
Author(s):  
V.N. Nikitina ◽  
G.G. Lyashko ◽  
N.I. Kalinina ◽  
E.N. Pankina
Keyword(s):  
Experimental Study ◽  
Radio Frequency ◽  
Electromagnetic Fields ◽  
Electric Fields ◽  
Experimental Studies ◽  
Frequency Range ◽  
Electronic Ballast ◽  
Fluorescent Lamps ◽  
Compact Fluorescent Lamps ◽  
Surrounding Space

The objects of this study are compact fluorescent lamps with an electronic ballast and the hygienic assessment of electromagnetic fields created by compact fluorescent lamps. As part of the work, the selection of samples of compact fluorescent lamps for the experimental study of electromagnetic fields was carried out. The background levels of electric and magnetic fields with a frequency of 50 Hz and high-frequency range were measured. Experimental studies of the spectrum and intensity of electromagnetic fields created by compact fluorescent lamps were carried out with different variants of lamp placement (in a cartridge without a light armature, in a local lighting fixture, in general lighting fixtures – chandeliers). The study showed that compact fluorescent lamps equipped with electronic ballast create electromagnetic fields of radio frequency range in the surrounding space. The main frequency of radiation in the examined lamp samples ranged from 32 to 58 kHz. The intensity of electric fields created by compact fluorescent lamps may exceed the permissible level set for consumer goods.

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