Predicting fatal heat and humidity using the heat index model
Yi-Chuan Lu, David M. Romps
Abstract
Recent experiments have identified the critical combinations of heat and humidity, in an indoor setting, above which an individual is unable to maintain a standard core temperature, indicating severe heat stress. It is shown here why this state of severe heat stress cannot be predicted using the wet-bulb temperature. Instead, it is shown that the recently extended heat index model can explain nearly all of the variance in the observed critical combinations of temperature and humidity, and can be used to calculate fatal combinations.
Topics & Concepts
HumidityHeat indexHeat stressWet-bulb temperatureApparent temperatureThermodynamicsIndex (typography)Environmental scienceCore temperatureDry-bulb temperatureAtmospheric sciencesPhysicsMedicineAnesthesiaComputer scienceWorld Wide WebClimate Change and Health ImpactsThermoregulation and physiological responsesThermal Regulation in Medicine