STP1386

    Effect of Measured Heat Loss through Turnout Materials on Firefighter Comfort and Heat Stress. Part I: Performance in a Mild Environment

    Published: Jan 2000


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    Abstract

    This research studied the relationship between heat transfer measured using a guarded sweating hot plate test method and the actual comfort and heat stress performance of firefighter turnout clothing. Controlled environment wear trials were conducted using the climate chamber available at the Center for Research on Textile Protection and Comfort (T-PACC) in the College of Textiles at North Carolina State University. Seven professional firefighters participated in these studies. Two different wear test protocols were performed to simulate two levels of work activity, climate conditions, and clothing and equipment variables: One protocol featured light to moderate work activity in a mild climate (21°C, 65% RH). Subjective and objective measures of human psychological and physiological response were applied to quantify and rate performance in several categories. A separate study was conducted to determine the heat stress experienced by firefighters performing moderate work activities in a warm environment (39°C, 35% RH).

    Keywords:

    Heat stress, comfort, guarded sweating hot plate, breathable moisture barriers, firefighter protective clothing


    Author Information:

    Barker, R
    Professor, North Carolina State University, Raleigh, NC

    Myhre, L
    Research Physiologist, Alamo Physiological Research Institute, San Antonio, TX

    Scruggs, B
    Research associate, adjunct associate professor, graduate research assistant, North Carolina State University, Raleigh, NC

    Shalev, I
    Research associate, adjunct associate professor, graduate research assistant, North Carolina State University, Raleigh, NC

    Prahsarn, C
    Research associate, adjunct associate professor, graduate research assistant, North Carolina State University, Raleigh, NC

    Miszko, T
    Graduate research assistant, Alamo Physiological Research Institute,


    Paper ID: STP14467S

    Committee/Subcommittee: F23.80

    DOI: 10.1520/STP14467S


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