Multiphase high frequency apparatus for disinfestation and drying of grain
DOI:
https://doi.org/10.20535/RADAP.2014.57.56-67Keywords:
electric field, high frequency, integral singular equations, drying, disinfestationAbstract
Introduction. In order to reduce the field inhomogeneity caused by edge effects and ca-pacitance of two parallel metal plate electrode system we have proposed a mathematical model of conductive multilectrode cylindrical system.Analytical analysis techniques. According to the model the analysis of the distribution of the electric field inside the zone restricted with multiply connected circular boundary on the basis of the theory of singular integral equations in the form of conjugation problem is per-formed. The calculation of the electric field distribution is reduced to the consideration of partial problem where only one electrode possesses a non-zero voltage. It is shown that pro-viding the harmonic feeding of the electrode system consisting of identically sized equally spaced arc-shaped electrodes with voltages of the same amplitudes and phases equal to the angular position of the electrode on the circle will ensure the feasibility of the rotating and homogeneous field in the area. The expressions for determination of the electric field strength in the area are given.
Results and discussion. It is shown that the size of the field homogeneity zone depends on the number of electrodes in such a way that increasing the number of elements causes the in-creasing of the zone size, and with the number of electrodes equal to 8 the diameter of the zone is equal to 60% of structure. It is proved that such an electrode system can be success-fully applied for creating of apparatus for bulk materials irradiation. A schematic diagram of a generator for the electrodes supply and the principle of building of the apparatus for treat-ment of grain and other bulk materials with the electric field of high frequency are proposed.
References
Перелік посилань
Черепнев А. Использование импульсного электромагнитного излучения для обеззараживания зерновой смеси / А. Черепнев, И. Черепнев, Г. Ляшенко // Збірник наукових праць Харківського університету Повітряних Сил. – 2008. – Вип. 2(17). – с.53-55.
Rajagopal V. Disinfestation of stored grain insects using microwave energy : a thesis for Degree of PhD / V. Rajagopal. – Manitoba, 2009. – 197 p.
Nelson S.O. Review and assessment of radio-frequency and microwave energy for stored-grain insect control // Trans. of the ASAE. – 1996. – Vol.39. – No.4. – pp. 1475-1484.
Зиньковский Ю.Ф. Задача сопряжения в расчётах напряженности и потенциала электрического поля кольцевой многосвязной структуры / Ю.Ф. Зиньковский, Ю.К. Сидорук, А.В. Голощапов // Известия вузов. Радиоэлектроника. – 2007. – Т.50, №5. – с. 76-80.
Зиньковский Ю.Ф. Напряженность электрического поля в области с кольцевой многосвязной границей и равными длинами граничных дуг / Ю.Ф.Зиньковский, Ю.К. Сидорук, А.В. Голощапов // Известия вузов. Радиоэлектроника. – 2009. – Т. 52, №2. – с.14-22.
Зиньковский Ю.Ф. Управляемое электрическое поле в многосвязной кольцевой структуре / Ю.Ф. Зиньковский, Ю.К. Сидорук // Известия вузов. Радиоэлектроника. – 2012. – Т. 55, №6. – с. 45-56.
Лаврентьев М.А. Методы теории функций комплексного переменного / М.А. Лаврентьев, Б.В. Шабат. – СПб. : Лань, 2002. – 688 с.
Мусхелишвили Н.И. Сингулярные интегральные уравнения: Граничные задачи теории функций и некоторые их приложения к математической физике. – М. : Наука, 1968. – 512 с.
Патент України 69812 A01C 1/00. Установка для сушіння зерна та інших сипучих матеріалів електромагнітним полем високої частоти / Сидорук Ю.К. ; заяв. 21.11.2011, опубл. 10.05.2012, Бюл. № 9.
References
Cherepnev А.S., Cherepnev I.A. and Liashenko G.A. (2008) Usage of pulse electromagnetic radiation for a decontamination of a grain mix. Scientific works of Kharkiv Air Force University, Is. 2 (17), pp. 53-55. (in Russian)
Rajagopal V. (2009) Disinfestation of stored grain insects using microwave energy. A thesis for Degree of PhD, Department of Biosystems Engineering, University of Manitoba, Manitoba, 197 p.
Nelson, S. O. (1996). Review and assessment of radio-frequency and microwave energy for stored-grain insect control. Transactions-American Society of Agricultural Engineers, Vol. 39, No 4, pp. 1475-1484.
Zin'kovskii Yu. F., Sidoruk Yu. K. and Goloshchapov A. V. (2007) The problem of conjugation in calculations of electric field strength and potential of a ring-shaped multiply connected structure. Radioelectronics and Communications Systems. Vol. 50, No. 5, pp. 284-287.
Zin'kovskii Yu. F., Sidoruk Yu. K. and Goloshchapov A. V. (2009) Electric field density in the region with circular multiply connected border and equal lengths of bounding arcs. Radioelectronics and Communications Systems. Vol. 52, No.2, pp. 63-69.
Zin'kovskii Yu. F. and Sidoruk Yu. K. (2012) Controlled electric field in multiply connected circular structure. Radioelectronics and Communications Systems. Vol. 55, No. 6. pp. 277-287.
Lavrent'ev M.A. and Shabat B.V. (2002) Metody teorii funktsii kompleksnogo peremennogo [Methods of the theory of functions of a complex variable]. St. Peterburg, Lan' Publ. 688 p.
Muskhelishvili N.I. (1968) Singulyarnye integral'nye uravneniya: Granichnye zadachi teorii funktsii i nekotorye ikh prilozheniya k matematicheskoi fizike [Singular integral equations: boundary problems of function theory and their applications to mathematical physics]. Moskow, Nauka Publ., 512 p.
Sydoruk Yu. K. (2012) Ustanovka dlia sushinnia zerna ta inshykh sypuchykh materialiv elektromahnitnym polem vysokoi chastoty [Installation for drying grain and other bulk materials by high frequency electromagnetic field] Patent UA 69812.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
