A Study of the Hydration Properties of Selected Laser Dye Aerosols Including Continuous-Flow Parallel Plate and Alternating-Gradient Thermal Diffusion Cloud Chamber Measurements in the High Supersaturation Regime

Abstract

The hydration behavior of aerosols, made up of various fluorescent dyes, when exposed to water saturation or supersaturated conditions has been studied. Critical supersaturation spectra are reported. The dyes are found to behave as high molecular weight ionic compounds that obey Kohler theory. Their relevant Kohler parameters are measured. This study makes use of and compares results from the isothermal haze, continuous-flow, and alternating-gradient thermal diffusion cloud chambers. The ability of the continuous-flow thermal diffusion chamber to operate correctly at high supersaturations is shown. The hydration behavior of aerosols made up of various fluorescent dyes when exposed to water saturation or supersaturated conditions has been studied. Critical supersaturation spectra are reported. The dyes behave as high molecular weight ionic compounds that obey Kohler theory. Their relevant Kohler parameters were measured. This study compares results from the isothermal haze, continuous flow, and alternating gradient thermal diffusion cloud chambers. The ability of the continuous flow thermal diffusion chamber to operate correctly at high supersaturations is shown.

Department(s)

Physics

Second Department

Chemistry

Third Department

Mechanical and Aerospace Engineering

Keywords and Phrases

Dyes and Dyeing - Molecular Weight; Fluorescent Dyes; Laser Dye Aerosols; Aerosols; ion; hydration

International Standard Serial Number (ISSN)

0278-6826

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1990 Taylor & Francis, All rights reserved.

Publication Date

01 Jan 1990

Link to Full Text

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