Masters Theses

Abstract

"A four-channel vertical flow thermal diffusion chamber for use as a cloud nucleus counter is described. The droplets in each channel are photographically counted. The instrument provides about 20 seconds of available growth time, which enables better distinction of active droplets than does ii the conventional horizontal chamber. Droplet growth calculations show that the uncertainty in droplet count due to limited available growth time is negligible for supersaturations above 0.3% but increases rapidly as the supersaturation is lowered below 0.3%. For example, at 0.1% supersaturation, the uncertainty is -27% to +38% in the drop count. The possible error in supersaturation due to temperature nonuniformities in any channel is found to be ±20% of the operating supersaturation for supersaturations between 0.1% and1%"-- Abstract, p. ii

Advisor(s)

Alofs, Daryl J.

Committee Member(s)

Illegible Signature
Carstens, John C., 1937-

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering

Publisher

University of Missouri--Rolla

Publication Date

1974

Pagination

vii, 41 pages

Note about bibliography

Includes bibliographical references (pages 39-40)

Rights

© 1974 Larry Allan Brunner, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 3069

Print OCLC #

6013599

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