An investigation of nucleate boiling from mesh covered surfaces

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Authors
Gregory, Francis Carl
Subjects
Advisors
Marto, P.J.
Date of Issue
1970
Date
June 1970
Publisher
Monterey, California ; Naval Postgraduate School
Language
en_US
Abstract
A boiler apparatus, designed to simulate heat pipe operation, was built and used to investigate nucleate boiling at atmospheric pressure from mesh covered surfaces using distilled water as the working fluid. The wick materials used included 50 mesh, 80 mesh, and 150 mesh nickel screen; 100 count Lektromesh, a one-piece electrodeposited metallic-sheet material; and 30-40 mesh glass beads. Various wick compositions and water levels were investigated. Vapor bubble migrations within the wick material influenced the performance of the apparatus. Providing a means for vapor escape improved the performance considerably. As a result, performance could be improved by using wick materials having larger mesh openings. Sintering screen samples to the boiler surface to reduce contact resistance did not improve performance.
Type
Thesis
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Department
Mechanical Engineering
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NPS Report Number
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Distribution Statement
Approved for public release; distribution is unlimited.
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.
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