American Association for Aerosol Research 28th Annual Conference, Minneapolis (MN), 26-30 October 2009, Abstract #81

Ellena, M.

Rivers, R.

Tronville, Paolo Maria

English

TRONVILLE, PAOLO MARIA

RIVERS R

ELLENA M.

PORTO@iris (Publications Open Repository TOrino - Politecnico di Torino)

05 August 2020POLITECNICO DI TORINORepository ISTITUZIONALEAssessing the need for neutralizing KCl filter testing aerosol / TRONVILLE P.; RIVERS R; ELLENA M. - ELETTRONICO.- (2009).OriginalAssessing the need for neutralizing KCl filter testing aerosolPublisher:PublishedDOI:Terms of use:openAccessPublisher copyright(Article begins on next page)This article is made available under terms and conditions as specified in the  corresponding bibliographic description inthe repositoryAvailability:This version is available at: 11583/2290769 since: AAAR 28th Annual ConferencePresented by the American Association for Aerosol Research    Home > Abstracts > Paolo TronvillePaolo TronvilleAssessing the need for neutralizing KCl filter testing aerosol  PAOLO TRONVILLE (1), Richard Rivers (2), Massimo Ellena (3)   (1) Politecnico di Torino, Dipartimento di Energetica, Corso Duca degli Abruzzi 24, 10129 Turin, Italy (2) EQS, inc., 1262 Bassett Ave., Louisville, KY 40204, USA (3) TEXA S.r.l., Via Simone Gribaudo, 22/A, 10034 Chivasso (TO), Italy      Abstract Number: 818      Last modified: April 24, 2009       Preference: Poster Presentation      Working Group: Control Technology Abstract Tests for particle capture by fibrous filters should mimic the charge conditions of natural aerosols. These normally exist in approximate Boltzmann equilibrium, where equal numbers of positive and negative charges are distributed on the aerosol particles, and those numbers are small. To mimic this condition in a generated test aerosol, experimenters have employed aerosol neutralizers, chiefly those using radioactivity and those using bipolar corona discharges. Corona neutralizers can handle larger aerosol flows, and avoid licensing problems. Neutralizers are designed to flood the aerosol with equal numbers of positive and negative ions. Accomplishing this by using bipolar corona neutralizers is a sensitive control problem. A simple instrument - the Faraday cage aerosol charge detector - can measure the net charge on an aerosol cloud continuously. If the distribution of particle diameters and total particle count are also measured, one can determine the degree to which the charge on the aerosol deviates from the theoretically calculated Boltzmann Equilibrium. We report such measurements made on DEHS and KCl aerosols generated by some filter test procedures, to determine whether neutralization is actually needed for these aerosols. The loss of particles in various types of feed tubing is also reported.  home | overview program | submission | organization  TopPagina 1 di 1Paolo Tronvillehttp://aaarabstracts.com/AAAR/viewabstract.php?paper=818&cf=1

Assessing the need for neutralizing KCl filter testing aerosol

PORTO Publications Open Repository TOrino

 AAAR 28th Annual Conference
Presented by the American Association for Aerosol Research
    Home > Abstracts > Paolo Tronville
Paolo Tronville
Assessing the need for neutralizing KCl filter testing aerosol 
 
PAOLO TRONVILLE (1), Richard Rivers (2), Massimo Ellena (3)  
 
(1) Politecnico di Torino, Dipartimento di Energetica, Corso Duca degli Abruzzi 24, 10129 Turin, 
Italy (2) EQS, inc., 1262 Bassett Ave., Louisville, KY 40204, USA (3) TEXA S.r.l., Via Simone 
Gribaudo, 22/A, 10034 Chivasso (TO), Italy 
     Abstract Number: 818 
     Last modified: April 24, 2009  
     Preference: Poster Presentation 
     Working Group: Control Technology 
Abstract 
Tests for particle capture by fibrous filters should mimic the charge conditions of natural aerosols. These 
normally exist in approximate Boltzmann equilibrium, where equal numbers of positive and negative charges 
are distributed on the aerosol particles, and those numbers are small. To mimic this condition in a generated 
test aerosol, experimenters have employed aerosol neutralizers, chiefly those using radioactivity and those 
using bipolar corona discharges. Corona neutralizers can handle larger aerosol flows, and avoid licensing 
problems. Neutralizers are designed to flood the aerosol with equal numbers of positive and negative ions. 
Accomplishing this by using bipolar corona neutralizers is a sensitive control problem. A simple instrument - 
the Faraday cage aerosol charge detector - can measure the net charge on an aerosol cloud continuously. If 
the distribution of particle diameters and total particle count are also measured, one can determine the 
degree to which the charge on the aerosol deviates from the theoretically calculated Boltzmann Equilibrium. 
We report such measurements made on DEHS and KCl aerosols generated by some filter test procedures, to 
determine whether neutralization is actually needed for these aerosols. The loss of particles in various types 
of feed tubing is also reported. 
 
home | overview 
program | submission | organization
  Top
Pagina 1 di 1Paolo Tronville
http://aaarabstracts.com/AAAR/viewabstract.php?paper=818&cf=1


https://iris.polito.it/retrieve/handle/11583/2290769/51944/54650_UPLOAD.pdf

Assessing the need for neutralizing KCl filter testing aerosol

Abstract

Similar works

Full text

Available Versions

PORTO@iris (Publications Open Repository TOrino - Politecnico di Torino)

PORTO Publications Open Repository TOrino