Experimental Techniques to Determine Ntu of Compact Heat Exchanger Surfaces
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Authors
Bruno, Marco Joseph
Subjects
Advisors
Pucci, Paul F.
Date of Issue
1968-09
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Two new transient testing techniques were evaluated; the centrold
method developed by Kohlmayr and the time zero intercept technique. The
zero intercept method was found to be the most promising of the two but
is limited to values of N < 2.5. The centrold technique can be used
effectively when the value of N is less than 5.0. A heater system made of .001 inch diameter nichrome wire was designed
and tested to determine its effect on the transient testing of matrix
type heat exchangers. Because the design showed no improvement in the
test results and was unreliable its use was discontinued.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Identifiers
NPS Report Number
Sponsors
Funder
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Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.