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Particle surface treatment for promoting condensation

Flagan, Richard C. and Kaufman, Stanley L. and Sem, Gilmore J. (2008) Particle surface treatment for promoting condensation. Patent number: US7407531B2.

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A system is disclosed for condensation particle counting in conjunction with modifying an aerosol to enhance the formation and growth of droplets of a selected working fluid, preferably water. Before saturation with the working fluid, the aerosol is exposed to an aerosol modifying component, preferably a vapor including molecules that are adsorbed onto surfaces of the particles or other elements suspended in the aerosol. Adsorption alters the surface character of the suspended elements towards increased affinity for the vapor of the working fluid, to promote the formation and growth of working fluid droplets. The droplets are optically detected to indicate numbers and concentrations of the suspended elements.

Item Type:Patent
Related Patents:US20050248750A1
Patent Classification:Current U.S. Class: 95/154; 356/36; 73/28.01; 73/863; 96/267; 96/413. Current CPC Class: G01N 15/065 (20130101); G01N 2001/2223 (20130101). Current International Class: G01N 1/26 (20060101).
Patent Assignee:California Institute of Technology, TSI Incorporated
Related URLs:
URLURL TypeDescription Patents site Patent Office
Flagan, Richard C.0000-0001-5690-770X
Additional Information:Publication number US7407531B2. Publication type Grant. Application number US20050248750A1. Publication date August 5, 2008. Filing date May 9, 2005. Priority date May 10, 2004. Parent Case Text: This application claims the benefit of priority of Provisional Application No. 60/569,713 entitled "Particle Service Treatment for Promoting Condensation," filed May 10, 2004.
Record Number:CaltechAUTHORS:20150910-084457975
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60161
Deposited By: Irina Meininger
Deposited On:25 Feb 2016 00:56
Last Modified:03 Oct 2019 08:54

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