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Genre/Form: | Thèses et écrits académiques |
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Material Type: | Thesis/dissertation |
Document Type: | Book |
All Authors / Contributors: |
Marie-Thérèse Moufarej Abou Jaoude; Khashayar Saleh; Martin Morgeneyer; Université de Technologie de Compiègne.; École doctorale 71, Sciences pour l'ingénieur (Compiègne). |
OCLC Number: | 868545792 |
Description: | 1 vol. (230 p.) : ill. ; 30 cm. |
Responsibility: | Marie-Thérèse Moufarej Abou Jaoude ; sous la direction de Khashayar Saleh et Martin Morgeneyer. |
Abstract:
The dust emission is a problem that is becoming increasingly important to manufacturers. This can cause various risks at levels : health, hygiene, safety of industrial and economies. Our project focuses on experimentally studying the powder dust emission process as well as modeling it. The main objective is to provide suitable methods for the study of dust emission during powder handling to better understand their origins and the involved mechanisms. We chose to focus on the fluidization test either by combining it to a phenomenological model prediction either by stirring for the addition of a mechanical energy. A literature review has showed that the elutriation processes are responsible for the dust quantification in the fluidizing test. This method is limited because it is not to direct, takes long lime analysis and asks for a modeling knowledge. Therefore, we developed another test based on the combination of the fluidization and the stirring using a powder rheometer (FT4) which originality is the use of a twisted blade with a helical movement. The blade permits to aerate the mixture and adds more shearing and compaction. This test has reduced the time of analysis to 90 minutes with a prediction of 80% of the dust in a mixture.
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