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Rynes, Peter L.
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Modeling Human Thermoregulation as a Means of Evaluating Heat Stress Events

ThermoAnalytics, Inc.-Allen R. Curran, Peter L. Rynes
Published 2008-08-19 by SAE International in United States
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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A Methodology for Rapid Calculation of Computational Thermal Models

Lydall, Inc.-Frank C. Burroughs, Tim Byrd
Michigan Technological Univ.-Keith R. Johnson, Bobbi S. Wood, Peter L. Rynes, Ban K. Yee
Published 1995-02-01 by SAE International in United States
Too often many heat management problems are not solved with thermal analysis because of excessive complexity, time, and cost. A method for quickly solving a sophisticated thermal/fluid system with minimal user interaction and with common desktop computer resources is presented. A desktop (Microsoft Windows™) thermal analysis package, WinTherm, consists of the Generic Processor (pre-processing software), the 3-D Thermal Model (a finite difference nodal network solver), and an Image Viewer (wireframe and animated thermal display). The theoretical basis for this thermal analysis toolkit will be discussed as well as examples of its implementation.
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