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Study of the stopping power of various filters; Etude du pouvoir d'arret de differents filtres

Abstract

The first part is devoted to a study of aerosols obtained from the combustion of various smoke-producing compounds. A trial aerosol of which the size distribution is the closest possible to that of atmospheric dusts has been defined. The efficiency of various filters has been determined for successive increments of the dimensions and not for the whole range of its diameter distribution. The variation in the efficiency of the filtering layers as a function of the filtering speed and particle size has been studied for aerosols having particle diameters of over 0.3 {mu}. The second part describes an original method for measuring the efficiency of filters for ultra-fine particles (under 0.1 {mu}) using the fixation properties of radioactive atoms resulting from the decay of thoron. (author) [French] La premiere partie est consacree a l'etude des aerosols obtenus a partir de la combustion de divers types de fumigenes. Un aerosol d'essai, dont la repartition granulometrique se rapproche le plus possible des poussieres atmospheriques a ete defini. L'efficacite de plusieurs filtres a ete determinee pour des tranches successives de dimension et non pour l'aerosol pris dans sa totalite. La variation de l'efficacite des couches filtrantes en fonction de la taille des particules  More>>
Authors:
Madelaine, G [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1964
Product Type:
Thesis/Dissertation
Report Number:
CEA-R-2432
Resource Relation:
Other Information: TH: These Radiations et de genie radioactif; 15 refs
Subject:
42 ENGINEERING; AEROSOL GENERATORS; AEROSOLS; AIR FILTERS; COMPARATIVE EVALUATIONS; DUST COLLECTORS; EFFICIENCY; FILTRATION; KINETICS; PARTICLE SIZE; PERMEABILITY; RADON 220
OSTI ID:
20767092
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France); Conservatoire National des Arts et Metiers (CNAM), 75 - Paris (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR06R2432073694
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
72 pages
Announcement Date:
Sep 25, 2006

Citation Formats

Madelaine, G. Study of the stopping power of various filters; Etude du pouvoir d'arret de differents filtres. France: N. p., 1964. Web.
Madelaine, G. Study of the stopping power of various filters; Etude du pouvoir d'arret de differents filtres. France.
Madelaine, G. 1964. "Study of the stopping power of various filters; Etude du pouvoir d'arret de differents filtres." France.
@misc{etde_20767092,
title = {Study of the stopping power of various filters; Etude du pouvoir d'arret de differents filtres}
author = {Madelaine, G}
abstractNote = {The first part is devoted to a study of aerosols obtained from the combustion of various smoke-producing compounds. A trial aerosol of which the size distribution is the closest possible to that of atmospheric dusts has been defined. The efficiency of various filters has been determined for successive increments of the dimensions and not for the whole range of its diameter distribution. The variation in the efficiency of the filtering layers as a function of the filtering speed and particle size has been studied for aerosols having particle diameters of over 0.3 {mu}. The second part describes an original method for measuring the efficiency of filters for ultra-fine particles (under 0.1 {mu}) using the fixation properties of radioactive atoms resulting from the decay of thoron. (author) [French] La premiere partie est consacree a l'etude des aerosols obtenus a partir de la combustion de divers types de fumigenes. Un aerosol d'essai, dont la repartition granulometrique se rapproche le plus possible des poussieres atmospheriques a ete defini. L'efficacite de plusieurs filtres a ete determinee pour des tranches successives de dimension et non pour l'aerosol pris dans sa totalite. La variation de l'efficacite des couches filtrantes en fonction de la taille des particules et de la vitesse de filtration a ete examinee pour des aerosols superieurs a 0,3 {mu}. La seconde partie decrit une methode originale permettant de mesurer l'efficacite des filtres pour des particules ultrafines (inferieures a 0,1 {mu}) en utilisant la propriete de fixation des atomes radioactifs des descendants du thoron. (auteur)}
place = {France}
year = {1964}
month = {Jul}
}