Главная Книги е-Книги Журналы Справочники & Сборники Авторы, Редакторы, Рецензенты А - Я индекс Награды
Energy and the Environment, 1999

ISBN:
1-56700-127-0 (Print)

PREDICTION OF BUBBLE DYNAMICS IN A FLUIDIZED BED BY THE MEASUREMENT OF PRESSURE OSCILLATIONS

M. Parlak
Aselsan Inc. REHIS Division, 06830- Ankara / Turkey, Electronics Cooling Technologies and Fluid Mechanics Laboratory; Gazi University - 06570

V. PatogIu
Middle East Technical University, Mechanical Engineering Department Ankara 06531 - Turkey

A. Sayar
Middle East Technical University, Mechanical Engineering Department Ankara 06531 - Turkey

Huseyin Vural
Middle East Technical University Mechanical Engineering, Ankara-Turkey

Аннотация

In the present study, the pressure fluctuations in a two-dimensional transparent fluidized bed are measured by a pressure transducer such that the bubble formation and movement can be detected from the signals. Bubble movement is recorded by a video camera and signals obtained from the pressure transducer are stored in a computer. Bubble diameters and rise velocities are determined from pressure-time data utilizing image and signal processing techniques.