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Wyszukujesz frazę "Crown, E. M." wg kryterium: Wszystkie pola


Wyświetlanie 1-3 z 3
Tytuł:
How Clean is Clean Enough? Maintaining Thermal Protective Clothing Under Field Conditions in the Oil and Gas Sector
Autorzy:
Crown, E. M.
Feng, A.
Xu, X.
Powiązania:
https://bibliotekanauki.pl/articles/90475.pdf
Data publikacji:
2004
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
protective clothing
decontamination
flammability
przemysł wydobywczy
gaz kopalniany
odzież ochronna
izolacja cieplna
tkaniny na odzież ochronną
Opis:
The purpose of this research was to develop practical care procedures to help maintain the protective quality of flame resistant workwear laundered by workers in the field. Based on observed field conditions, experiments were conducted that simulated domestic laundry procedures. The first experiment involved two flame resistant (FR) fabrics, contaminated or not contaminated with oil. Independent variables also included detergent type and laundry pre-treatment. Other laundry parameters were controlled. Results indicated that it is easier to maintain the FR performance of the FR-treated blend than it is for the aramid fabric. It is hypothesized that energy generated by initial ignition of oil on the specimens triggers the FR mechanism of the treatment, which in turn inhibits further combustion. A second experiment using larger specimens and a domestic washing machine also supported the hypothesized mechanism.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2004, 10, 3; 247-254
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Protection From Steam at High Pressures: Development of a Test Device and Protocol
Autorzy:
Sati, R.
Crown, E. M.
Ackerman, M.
Gonzalez, J.
Dale, D.
Powiązania:
https://bibliotekanauki.pl/articles/90402.pdf
Data publikacji:
2008
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
steam protection
high pressure steam
protective materials
Opis:
Extensive use of pressurized steam in the oil and gas sectors has led to incidents where workers were seriously injured. In this study a test device and procedure to measure heat transfer through fabrics during steam exposure were developed and evaluated. Several factors were considered while designing the test device to simulate work site conditions. Fabrics were exposed to steam at 2 distances (50 and 100 mm) and 2 pressures (207 and 69 kPa). Theoretical considerations included heat and mass transfer, and fabric structure and performance properties. The test device and procedure differentiated well among both fabric and exposure conditions. For all fabrics, maximum heat transfer was observed at highest steam pressure and shortest distance. Laminated and coated fabrics performed better than a fabric without such treatments.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2008, 14, 1; 29-41
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Moisture Effects in Heat Transfer Through Clothing Systems for Wildland Firefighters
Autorzy:
Lawson, L. K.
Crown, E. M.
Ackerman, M. Y.
Dale, J. D.
Powiązania:
https://bibliotekanauki.pl/articles/90762.pdf
Data publikacji:
2004
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
heat transfer
moisture
clothing systems
ratownictwo
środki ochrony indywidualnej
odzież ochronna
kombinezon
straż pożarna
Opis:
Wildland firefighters work in unfavourable environments involving both heat and moisture. Moisture in clothing systems worn by wildland firefighters may increase or decrease heat transfer, depending on its source and location in the clothing system, location on the body, timing of application and degree of sorption. In this experiment, 4 outerwear/underwear combinations were exposed to 1 of 5 different conditions varying on amount and location of moisture. The fabric systems were then exposed to either a high-heat-flux flame exposure (83 kW/m2) or a low-heat-flux radiant exposure (10 kW/m2). Under high-heat-flux flame exposures, external moisture tended to decrease heat transfer through the fabric systems, while internal moisture tended to increase heat transfer. Under low-heat-flux radiant exposures, internal moisture decreased heat transfer through the fabric systems. The nature and extent of such differences was fabric dependent. Implications for test protocol development are discussed.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2004, 10, 3; 227-238
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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