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Title: Method for sealing remote leaks in an enclosure using an aerosol

Abstract

The invention is a method and device for sealing leaks remotely by means of injecting a previously prepared aerosol into the enclosure being sealed according to a particular sealing efficiency defined by the product of a penetration efficiency and a particle deposition efficiency. By using different limits in the relationship between penetration efficiency and flowrate, the same method according the invention can be used for coating the inside of an enclosure. Specifically the invention is a method and device for preparing, transporting, and depositing a solid phase aerosol to the interior surface of the enclosure relating particle size, particle carrier flow rate, and pressure differential, so that particles deposited there can bridge and substantially seal each leak, with out providing a substantial coating at inside surfaces of the enclosure other than the leak. The particle size and flow parameters can be adjusted to coat the interior of the enclosure (duct) without substantial plugging of the leaks depending on how the particle size and flowrate relationships are chosen.

Inventors:
 [1];  [2]
  1. Piedmont, CA
  2. Lyons, FR
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
OSTI Identifier:
872649
Patent Number(s):
5980984
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05D - PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
E - FIXED CONSTRUCTIONS E04 - BUILDING E04B - GENERAL BUILDING CONSTRUCTIONS
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; sealing; remote; leaks; enclosure; aerosol; device; remotely; means; injecting; previously; prepared; sealed; according; particular; efficiency; defined; product; penetration; particle; deposition; limits; relationship; flowrate; coating; inside; specifically; preparing; transporting; depositing; solid; phase; interior; surface; relating; size; carrier; flow; rate; pressure; differential; particles; deposited; bridge; substantially; seal; leak; providing; substantial; surfaces; parameters; adjusted; coat; duct; plugging; depending; relationships; chosen; particle deposition; inside surface; flow rate; particle size; pressure differential; interior surface; solid phase; method according; sealing leaks; substantially seal; flow parameters; prepared aerosol; previously prepared; leaks remotely; /427/

Citation Formats

Modera, Mark P, and Carrie, Francois R. Method for sealing remote leaks in an enclosure using an aerosol. United States: N. p., 1999. Web.
Modera, Mark P, & Carrie, Francois R. Method for sealing remote leaks in an enclosure using an aerosol. United States.
Modera, Mark P, and Carrie, Francois R. Fri . "Method for sealing remote leaks in an enclosure using an aerosol". United States. https://www.osti.gov/servlets/purl/872649.
@article{osti_872649,
title = {Method for sealing remote leaks in an enclosure using an aerosol},
author = {Modera, Mark P and Carrie, Francois R},
abstractNote = {The invention is a method and device for sealing leaks remotely by means of injecting a previously prepared aerosol into the enclosure being sealed according to a particular sealing efficiency defined by the product of a penetration efficiency and a particle deposition efficiency. By using different limits in the relationship between penetration efficiency and flowrate, the same method according the invention can be used for coating the inside of an enclosure. Specifically the invention is a method and device for preparing, transporting, and depositing a solid phase aerosol to the interior surface of the enclosure relating particle size, particle carrier flow rate, and pressure differential, so that particles deposited there can bridge and substantially seal each leak, with out providing a substantial coating at inside surfaces of the enclosure other than the leak. The particle size and flow parameters can be adjusted to coat the interior of the enclosure (duct) without substantial plugging of the leaks depending on how the particle size and flowrate relationships are chosen.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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Works referenced in this record:

Investigation of a Laminar Boundary-Layer Suction Slot
journal, June 1982


Particle Deposition in Aerosol Sampling Lines Caused by Turbulent Diffusion and Gravitational Settling
journal, June 1989