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Department of Mechanical and Industrial Engineering >
Master of Engineering (M.Eng.) project reports >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/25217

Title: Photographic Study of Nucleate Boiling at Critical Heat Flux
Authors: Vira, Nadim
Advisor: Ashgriz, Nasser
Keywords: Nucleate Boiling
Issue Date: 23-Nov-2010
Abstract: Engineers designing nuclear reactors use conservative parameters in order to accommodate the large unpredictability in the heat transfer process in nuclear fuel channels. This unpredictability can be attributed to insufficient experimental data on nucleation on the surface of nuclear fuel rods. A number of studies have been performed to develop formulas and techniques for measuring parameters such as bubble diameter, velocity and frequency in order to properly understand how these properties may affect heat transfer. In an effort to further study these characteristics, an experimental set-up was created to mimic a nuclear fuel channel. Conditions in a nuclear plant were scaled down to create an environment that made the study of nucleation feasible. Inlet water pressure and flow rate were varied in this setup and the effects of these variations on nucleation were observed photographically. A significant setback faced during this project was related to the design and installation of the glass windows. Properties of quartz and borosilicate were studied and recommendations for future projects were presented. Due to time and design constraints, conclusive results for bubble diameter and velocity were not possible. A sample reading was analyzed to measure the bubble frequency. At the end of the project, a set-up was presented and techniques for studying nucleation were documented.
URI: http://hdl.handle.net/1807/25217
Appears in Collections:Master of Engineering (M.Eng.) project reports

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