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Module by: Robert Neddermeyer

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Name: Module 1 - Situation: Body Ambient Bondgraph Model Using Heat Flux Transducer
ID: m16245
Language: English (en)
Summary: There are numerous occupational and leisure tasks for which the participants are at risk of heat stress related illness. Heat stress illness effects can be either acute, such as heat stroke, heat exhaustion, heat cramps, fainting, and decline of performance; or chronic, such as loss of ability to tolerate heat, hypertension, heart muscle damage, reduced libido and impotence. Existing practices for protection against heat stress are limited to awareness education of antagonistic conditions. Persistent monitoring of individuals is not an existing practice due to a variety of factors, including drawbacks to the sensor devices and lack of quantitative definition of heat stress limits. This project presents a Bondgraph model to illustrate the body-ambient heat exchange and how it would be measured using a heat flux transducer. Individual contributions to body heat are shown as r-elements. A measurement device of a heat flux transducer is shown as a transformer element. The equation layer of the model can be tailored for various operating conditions, using either derived or empirical formulas to describe heat transfer. The model shows the same various components of body ambient heat exchange as are found in most occupation educational literature. Bondgraph figures further demonstrate causality and direction of power flow. Not fully quantified in the literature uncovered in research are how the body thermoregulatory functions begin to break down This data suggest that given a sound understanding of the heat transfer mechanisms operating with the human body during high risk tasks and environments, a heat flux transducer should provide a leading indicator of heat stress illness for any variety of tasks.
Subject: Science and Technology
Keywords:
Document Type: -//CNX//DTD CNXML 0.5 plus MathML//EN
License: Creative Commons Attribution License (CC-BY 2.0)
Authors: Robert Neddermeyer (nedd0004@umn.edu)
Copyright Holders: Robert Neddermeyer (nedd0004@umn.edu)
Maintainers: Robert Neddermeyer (nedd0004@umn.edu)
Version: 1.1 (history)
Created: May 14, 2008 11:57 pm GMT-5
Revised: May 15, 2008 8:08 am GMT-5

Version History

Version: 1.1 May 15, 2008 8:08 am GMT-5 by Robert Neddermeyer
Changes: 
Initial release

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American Chemical Society (ACS) Style Guide:

Neddermeyer, R. Module 1 - Situation: Body Ambient Bondgraph Model Using Heat Flux Transducer, Connexions Web site. http://cnx.org/content/m16245/1.1/, May 15, 2008.

American Medical Assocation (AMA) Manual of Style:

Neddermeyer R. Module 1 - Situation: Body Ambient Bondgraph Model Using Heat Flux Transducer [Connexions Web site]. May 15, 2008. Available at: http://cnx.org/content/m16245/1.1/.

American Psychological Assocation (APA) Publication Manual:

Neddermeyer, R. (2008, May 15). Module 1 - Situation: Body Ambient Bondgraph Model Using Heat Flux Transducer. Retrieved from the Connexions Web site: http://cnx.org/content/m16245/1.1/

Chicago Manual of Style (Bibliography):

Neddermeyer, Robert. "Module 1 - Situation: Body Ambient Bondgraph Model Using Heat Flux Transducer." Connexions. May 15, 2008. http://cnx.org/content/m16245/1.1/.

Chicago Manual of Style (Note):

Robert Neddermeyer, "Module 1 - Situation: Body Ambient Bondgraph Model Using Heat Flux Transducer," Connexions, May 15, 2008, http://cnx.org/content/m16245/1.1/.

Chicago Manual of Style (Reference, in Author-Date style):

Neddermeyer, R. 2008. Module 1 - Situation: Body Ambient Bondgraph Model Using Heat Flux Transducer. Connexions, May 15, 2008. http://cnx.org/content/m16245/1.1/.

Modern Languages Association (MLA) Style Manual:

Neddermeyer, Robert. Module 1 - Situation: Body Ambient Bondgraph Model Using Heat Flux Transducer. Connexions. 15 May 2008 <http://cnx.org/content/m16245/1.1/>.