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Readdressing personal cooling with ice.

E Kamon, W L Kenney, N S Deno

    American Industrial Hygiene Association Journal
    |May 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

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    Personalized ice-based cooling garments significantly extend worker exposure time in high-temperature nuclear power plant environments. These non-restrictive cooling systems reduce heat strain, enhancing safety and operational efficiency.

    Area of Science:

    • Occupational Health and Safety
    • Thermal Physiology
    • Nuclear Engineering

    Background:

    • Workers in nuclear power plants face extreme heat stress in high-temperature environments.
    • Existing protective clothing can exacerbate heat strain.
    • Personal cooling systems are needed for prolonged work in hazardous conditions.

    Purpose of the Study:

    • To evaluate an ice-based personal cooling system for nuclear power plant workers.
    • To assess the effectiveness of non-restrictive cooling garments in high ambient temperatures (55°C).
    • To determine the impact on worker exposure time and heat strain.

    Main Methods:

    • Development and testing of ice-packet-filled garments (long and short versions).
    • Laboratory and field evaluations with controlled metabolic heat production (200-300 kcal/hr).

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  • Measurement of exposure time, body temperature, and heart rate compared to control conditions.

    • Main Results:

    • A long garment with 7.2 kg of frozen water increased exposure time by 242% compared to control.
    • A short garment with 3.8 kg of frozen water increased exposure time by 115%.
    • Observed reductions in body temperature and heart rate indicated decreased heat strain.

    Conclusions:

    • Direct body contact with frozen water in specialized garments provides effective and predictable cooling.
    • The ice-based system significantly enhances worker safety and endurance in high-temperature nuclear environments.
    • This cooling technology is suitable for conditions involving high ambient temperatures and moderate metabolic heat production.