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Modeling Human Thermoregulation as a Means of Evaluating Heat Stress Events
Technical Paper
2008-01-2273
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper presents methodology for predicting body core temperature using the ASHRAE two-node thermoregulation model. Predicted changes in core temperature can be used to certify that, during a heat stress event, the temperature and humidity within an aircraft will not exceed values that are hazardous to the occupants. The use of ASHRAE model was validated by comparing its predictions to experimental data for subjects that were exposed to hot (33° to 48°C) environments. The model has been used to predict body core temperature in the cockpit and cabin during three different environmental ventilation system failure simulations for an aircraft that uses atmospheric air from the ram air duct in the event of a dual pack failure.
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Citation
Curran, A. and Rynes, P., "Modeling Human Thermoregulation as a Means of Evaluating Heat Stress Events," SAE Technical Paper 2008-01-2273, 2008, https://doi.org/10.4271/2008-01-2273.Also In
Avionics, Glass Cockpit Revolution; Human Factors; and Emerging Technologies
Number: SP-2215; Published: 2008-08-19
Number: SP-2215; Published: 2008-08-19
References
- “Heat Stress Control and Heat Casualty Management,” U.S. Army Research Institute of Environmental Medicine 2003
- “Final Report on FAR/JAR 25.831(g),” Mechanical Systems Harmonization Working Group (MSHWG) 2003
- “Occupational Exposure to Hot Environments,” NIOSH 1986
- “Thermal Comfort” American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE) 2005
- Stolwijk, J. A. Hardy, J. D. “Partitional calorimetric studies of responses of man to thermal transients,” J. Appl. Physiol 21 3 967 977 1966