Hot Steam Transfer Through Heat Protective Clothing Layers

• Autorzy: Rossi R. , Indelicato E. , Bolli W.
• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to analyse the transfer of steam through different types of textile layers as a function of sample parameters such as thickness and permeability. In order to simulate the human body, a cylinder releasing defined amounts of moisture was also used. The influence of sweating on heat and mass transfer was assessed. The results show that in general impermeable materials offer better protection against hot steam than semi-permeable ones. The transfer of steam depended on the water vapour permeability of the samples, but also on their thermal insulation and their thickness. Increasing the thickness of the samples with a spacer gave a larger increase in protection with the impermeable samples compared to semi-permeable materials. Measurements with pre-wetted samples showed a reduction in steam protection in any case. On the other hand, the measurements with a sweating cylinder showed a beneficial effect of sweating.

Słowa kluczowe

EN

hot steam protection; heat protective clothing

PL

wilgotność; odzież ochronna; mikroklimat; izolacja cieplna; tkaniny na odzież ochronną

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2004
• Tom: Vol. 10, No. 3
• Strony: 239--245
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Rossi R.

• EMPA (Swiss Federal Laboratories for Materials Testing and Research), St.Gallen, Switzerland

autor

Indelicato E.

• EMPA (Swiss Federal Laboratories for Materials Testing and Research), St.Gallen, Switzerland

autor

Bolli W.

• EMPA (Swiss Federal Laboratories for Materials Testing and Research), St.Gallen, Switzerland

Bibliografia

• 1. Benisek L, Edmondson GK, Mehta P, Phillips WA. The contribution of wool to improving the safety of workers against flames and molten metal hazards. In: Barker RL, Coletta GC, editors. Performance of Protective Clothing (ASTM STP 900). Philadelphia, PA, USA: American Society for Testing and Materials; 1986. p. 405-20.
• 2. Lee YM, Barker RL. Effect of moisture on the thermal protective performance of heat-resistant fabrics. Journal of Fire Sciences 1986;4(5):315-31.
• 3. Veghte JH. Effect of moisture on the burn potential in fire fighters’ gloves, Fire Technol 1984;23(4):313-22.
• 4. Mäkinen H, Smolander J, Vuorinen H. Simulation of the effect of moisture content in underwear and on the skin surface on steam burns of fire fighters. In: Mansdorf SZ, Sager R, Nielsen AP, editors. Performance of Protective Clothing, Second Symposium (ASTM STP 989). Philadelphia, PA, USA: American Society for Testing and Materials (ASTM); 1988. p. 415-21.
• 5. Rossi RM, Zimmerli T. Influence of humidity on the radiant, convective and contact heat transmission through protective clothing materials. In: Johnson JS, Mansdorf SZ, editors. Performance of Protective Clothing, Fifth Volume (ASTM STP 1237). Philadelphia, PA, USA: American Society for Testing and Materials (ASTM); 1996, p. 269-80.
• 6. Taylor FP. Report on fire fighter incident investigation/study. In: Proceedings of Clemson University’s Protective Clothing 97. Charlotte, NC, USA: Clemson University; 1997.
• 7. Suzanne P, Desruelle AV, Schmid B. Skin protection against burn injury by steam, toward an experimental methodology to evaluate the protection rate of clothes. In: Thermal Protection of Man Under Hot and Hazardous Conditions, Proceedings. Paris, France: International Institute of Refrigeration; 1999. p. 105-10.
• 8. European Committee for Standardization (CEN). Protective clothing - protection against heat and fire - method of determining heat transmission on exposure to flame (Standard No. EN 367:1992). Brussels, Belgium: CEN; 1992.
• 9. International Organization for Standardization (ISO). Textiles - physiological effects - measurements of thermal and water vapor resistance under steady-state conditions (sweating guarded hot plate test) (Standard No. ISO 11092:1993). Geneva, Switzerland: ISO; 1993.