STP1320

    A Wall and Edge Guarded Hot Box for Thermal Transmittance Measurements

    Published: Jan 1997


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    Abstract

    A unique guarded hot box designed for thermal testing of fenestration products incorporates several new design concepts from guarded hot plates, namely wall and edge guards, is described in detail. The wall and edge guarded hot box was built to meet the test methodologies specified in the American Society for Testing and Materials (ASTM) Standard Test Methods C 236-89 [1], “Standard Test Method for Measuring the Steady-State Thermal Performance of Building Assemblies by Means of a Guarded Hot Box”, C 976-90 [2], “Standard Test Method for Measuring the Steady-State Thermal Performance of Building Assemblies by Means of a Calibrated Hot Box” and C 1199-91 [3], “Standard Test Method for Measuring the Steady-State Thermal Transmittance of Fenestration Systems Using Hot Box Methods”.

    Calibration test results for the box wall and specimen frame flanking are presented. Results from calibration transfer standard tests are compared with theoretical calculations and discussed.

    Keywords:

    Guarded Hot box, fenestration, thermal insulation, thermal resistance, thermal conductivity, thermal transmittance heat transmission


    Author Information:

    Gatland, SD
    Research engineer and Manager of Materials Testing Services, Center For Applied Engineering, Inc., St. Petersburg, FL

    Goss, WP
    Professor of Mechanical Engineering and engineering consultant, University of Massachusetts, Amherst, MA

    Baumgardner, RL
    President of Rollin Inc., Stroudsburg, PA

    Williams, RG
    Senior research associate of the Division of Quantum Metrology, National Physical Laboratory, Teddington,

    Miller, RG
    Research engineer and Manager of Materials Testing Services, Center For Applied Engineering, Inc., St. Petersburg, FL


    Paper ID: STP12266S

    Committee/Subcommittee: C16.30

    DOI: 10.1520/STP12266S


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