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Article . 2017 . Peer-reviewed
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Three-dimensional modeling of the separation gradient aerosol technologies.Oil separators of the GTE suction systems with the gas flow rate up to 800 m3/h

Authors: Serhiy S. Ryzhkov;

Three-dimensional modeling of the separation gradient aerosol technologies.Oil separators of the GTE suction systems with the gas flow rate up to 800 m3/h

Abstract

There have been implemented separation gradient aerosol technologies which take into account all the forces and effects that influence the deposition of finely dispersed particles. Substantiation is provided for the scientific statement of intensification of the gradient processes of the aerosol media transfer in the boundary layers of multipurpose surfaces during cleaning of the dispersed multiphase flows for the development of technical devices enhancing energy saving and ecological purity of power plants. A sectional design scheme and a three-dimensional model of an oil separator in finite elements were developed for calculating the hydrodynamics and separation. The hydrodynamic situation and the trajectory of the particles in the flow section of the oil separator are calculated. According to the calculation of the velocity distribution in the oil separator at G = 100...200 m3/h, the velocity in the coagulation profile does not exceed 10 m/s. On the basis of the results of the static pressure distribution for G = 100, 200 m3/h, it is established that the pressure difference in the separating coagulators reaches 2.5...3.9 kPa, respectively. The calculation results at G = 100...200 m3/h show that the total pulsation effect of precipitation of the highly dispersed particles makes up 25.1%. Using the calculations, a prototype oil separator was created; its experimental studies were performed on the stand in the form of an open-type wind tunnel. The coefficient of the total purification efficiency is determined, which reaches 99.9%. On the basis of the separation gradient aerosol technologies, it is possible to improve cleaners capturing aerosols in various power plant systems. The performed studies allow further developing a line-up of separators for the gas flow rate from 20 to 2000 m3/h.

Применено трехмерное моделирование сепарационных градиентных аэрозольных технологий. Созданы трёхмерные модели для численного эксперимента усовершенствованного маслоотделителя для сис-тем суфлирования газотурбинных двигателей с контактными уплотнениями. Выполнены исследования в диапазоне расходов 400…800 м3/ч. На основе расчетов создан опытный образец маслоотделителя и выполнены его экспериментальные исследования на специальном стенде. Определен коэффициент суммарной эффективности очистки, который достигает 99,9% для G = 400–800 м3/час.

Застосовано тривимірне моделювання сепараційних градієнтних аерозольних технологій. Створено тривимірні моделі для чисельного експерименту вдосконаленого масловіддільника для систем суфлювання газотурбінних двигунів з контактними ущільненнями. Виконано дослідження в діапазоні витрат 400, 600, 800 м3/год. На основі розрахунків створено дослідний зразок масловіддільника й виконано його експериментальне вивчення на спеціальному стенді. Визначено коефіцієнт сумарної ефективності очищення, який досягає 99,9% для G = 400−800 м3/год.

Keywords

oil separator; gradient aerosol technologies; three-dimensional design grid; static pressure; coefficient of total efficiency, масловіддільник; градієнтні аерозольні технології; тривимірна розрахункова сітка; статичний тиск; коефіцієнт сумарної ефективності, маслоотделитель; градиентные аэрозольные технологии; трехмерная расчетная сетка; статическое давление; коэффициент суммарной эффективности

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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