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    Exhaust thimble for arctic environments

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    Author
    Evans, Mark P.
    Chair
    Peterson, Rorik
    Committee
    Kim, Sun woo
    Lin, Chuen-Sen
    Keyword
    Flue gasses
    Arctic regions
    Chimneys
    Design and construction
    Linings
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/8043
    Description
    Master's Project (M.S.) University of Alaska Fairbanks, 2016
    Table of Contents
    The purpose of this research project is to investigate an alternative exhaust thimble design. Exhaust thimbles provide building code mandated protection of the structure materials from the heat produced by flue gases. Current designs are ill suited for arctic conditions. They do not maintain necessary building envelope and thermal insulation integrity. A well thought out rctic design would allow for the thermal and vapor barrier integrity to be maintained without sacrificing performance. Design concepts were rendered by engineers at UAF due to necessity. From concept, full scale models were built and tested in summer and winter conditions. These prototypes use a natural convective process to maintain an outer layer skin temperature below the combustion range. Thermocouples were placed to capture the transient and steady state thermal data and a hot wire anemometer was used to record flow velocities at steady state. Following field research, the collected data was organized and used to refine computer modeling that was done using COMSOL software. The result was a clear indication that this design has promise.
    Date
    2016-05
    Type
    Master's Project
    Collections
    Engineering

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