Theoretical evaluation of burns to the human respiratory tract due to inhalation of hot gas in the early stage of fires

Burns : Journal of the International Society for Burn Injuries
Yong-Gang LvJun Zhang

Abstract

A transient two-dimensional mathematical model for heat and water vapor transport across the respiratory tract of human body was established and applied to predict the thermal impact of inhaled hot gas to the nasal tissues during the early stage of fires. Influences of individual's physiological status and environment variables were comprehensively investigated through numerical calculations. Burn evaluation was performed using the classical Henriques model to predict the time for thermal injury to occur. It was shown that decreasing the air velocity and increasing the respiratory rate is helpful to minimize the burn over the respiratory tract. The effect of relative humidity of surrounding dry hot air could be ignored in predicting burns for short duration exposures. Due to evaporation cooling on the mucousal membrane, the burn often occurs at certain positions underneath the skin of the tract near the inlet of the respiratory tract. Most of the tissues near the surface suffer injury immediately after exposure to fire, while in the deeper tissues, serious damage occurs after a relatively longer time period. The method presented in this paper may suggest a valuable approach to theoretically evaluate the injury of hot air to the...Continue Reading

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Citations

Mar 21, 2008·Journal of Burn Care & Research : Official Publication of the American Burn Association·Gary AnYoram Vodovotz
Apr 26, 2008·PLoS Computational Biology·Yoram VodovotzGary An
Jan 15, 2014·Computer Methods and Programs in Biomedicine·Chao JinJing Liu
Mar 26, 2013·Burns : Journal of the International Society for Burn Injuries·Ran ZhaoGuo-an Zhang
Nov 21, 2012·Burns : Journal of the International Society for Burn Injuries·Ran ZhaoGuo-an Zhang
Jul 14, 2010·Journal of Hazardous Materials·Sara Brambilla, Davide Manca
Dec 15, 2015·Burns : Journal of the International Society for Burn Injuries·Jiangbo WanTairan Fu
Oct 30, 2015·Computer Methods in Biomechanics and Biomedical Engineering·Seungman Park
Nov 21, 2014·Journal of Burn Care & Research : Official Publication of the American Burn Association·Yang ChangGuo-an Zhang
Feb 15, 2015·Burns : Journal of the International Society for Burn Injuries·Michelle K Donnelly, Jiann C Yang

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