До визначення ефективності уловлювання частинок леткої золи краплями
At present, the devices for the wet cleaning of flue gases, which are widely used in the Ukrainian power engineering, do not correspond to the ecological requirements, but the possibilities of substantial improvement of their operation are far from being exhausted. For this purpose, it is necessary...
Збережено в:
| Дата: | 2011 |
|---|---|
| Автори: | , , |
| Формат: | Стаття |
| Мова: | Ukrainian |
| Опубліковано: |
General Energy Institute of the National Academy of Sciences of Ukraine
2011
|
| Теми: | |
| Онлайн доступ: | https://systemre.org/index.php/journal/article/view/429 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | System Research in Energy |
Репозитарії
System Research in Energy| Резюме: | At present, the devices for the wet cleaning of flue gases, which are widely used in the Ukrainian power engineering, do not correspond to the ecological requirements, but the possibilities of substantial improvement of their operation are far from being exhausted. For this purpose, it is necessary to develop a rather exact model of the working process in such a device, which would account for a wide circle of physical phenomena in three-phase flows. This model has to be semiempirical, since it is impossible to find the probability of coalescence in a particle – drop collision, by using analytic or numerical methods.The aim of the present work is to investigate experimentally the probability of coalescence of particles with drops depending on the parameters of their interaction. In the experiments, we model the processes taking place in the devices for the wet cleaning of flue gases of pulverized-coal fired boilers. The material balance of the process of catching solid fly-ash particles by drops is characterized by the coalescence parameter Y. We have developed a procedure of determining this parameter as a ratio between the mass of caught particles for a certain time and the mass of particles collided with drops.Based on this procedure, we have developed and produced an experimental facility to measure the coalescence parameter. The performed series of experimental investigations enabled us to establish the influence of a relative particle-drop velocity and a particle size on the parameter Y. |
|---|