Assessment of Regional Heat Losses for Verification of Mathematical Analogues of the Human Thermal System

Assessment of Regional Heat Losses for Verification of Mathematical Analogues of the Human Thermal System PDF Author: Pekka Piironen
Publisher:
ISBN:
Category :
Languages : en
Pages : 74

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Book Description
Elaboration of mathematical analogues for the human thermal system implies that various simplified, steady-state and dynamic, heat transfer situations are experimentally mastered with full repeatability. In a stable thermal environment, the high thermal time constants of peripheral tissues and individual structural and functional differences impede the achievement of comparable and reproducible stationary and dynamic heat transfer situations in the organism at rest and during exercise. However, by active governing of the skin temperature, the establishment of steady states can be greatly accelerated and the development of desired dynamic states is under control. The aim of the study was to develop a set of equipment for regional controlling of skin temperatures and equipment for measuring the external heat exchange of the different parts of the body. The methods and equipment have been applied in testing a simple mathematical model which was worked out to describe the passive part of human heat transfer system. (Author).

Assessment of Regional Heat Losses for Verification of Mathematical Analogues of the Human Thermal System

Assessment of Regional Heat Losses for Verification of Mathematical Analogues of the Human Thermal System PDF Author: Pekka Piironen
Publisher:
ISBN:
Category :
Languages : en
Pages : 74

Get Book Here

Book Description
Elaboration of mathematical analogues for the human thermal system implies that various simplified, steady-state and dynamic, heat transfer situations are experimentally mastered with full repeatability. In a stable thermal environment, the high thermal time constants of peripheral tissues and individual structural and functional differences impede the achievement of comparable and reproducible stationary and dynamic heat transfer situations in the organism at rest and during exercise. However, by active governing of the skin temperature, the establishment of steady states can be greatly accelerated and the development of desired dynamic states is under control. The aim of the study was to develop a set of equipment for regional controlling of skin temperatures and equipment for measuring the external heat exchange of the different parts of the body. The methods and equipment have been applied in testing a simple mathematical model which was worked out to describe the passive part of human heat transfer system. (Author).

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704

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Technical Information Indexes

Technical Information Indexes PDF Author: United States. Naval Air Systems Command
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 672

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Government Reports Announcements

Government Reports Announcements PDF Author:
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 1484

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Aerospace Medicine and Biology

Aerospace Medicine and Biology PDF Author:
Publisher:
ISBN:
Category : Aviation medicine
Languages : en
Pages : 240

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Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).

Topics in Transport Phenomena

Topics in Transport Phenomena PDF Author: Chaim Gutfinger
Publisher: Hemisphere Pub
ISBN:
Category : Science
Languages : en
Pages : 644

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Government Reports Announcements & Index

Government Reports Announcements & Index PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 690

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Government Reports Index

Government Reports Index PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1120

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Undersea Biomedical Research

Undersea Biomedical Research PDF Author:
Publisher:
ISBN:
Category : Pressure
Languages : en
Pages : 522

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The Mathematical Analysis of Heat Transfer and Temperature Relations in the Human Body

The Mathematical Analysis of Heat Transfer and Temperature Relations in the Human Body PDF Author: EUGENE H. WISSLER
Publisher:
ISBN:
Category :
Languages : en
Pages : 1

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Book Description
The synthesis of an adequate mathematical model for the human thermal system must include the following factors: (1) the manner in which heat generated by metabolic reactions is distributed throughout the body, (2) conduction of heat ue to thermal gradients, (3) convection of heat by circulating blood, (4) the geometry of the body, (5) the relatively low thermal conductivity of the superficial layer of fat and skin, (6) countercurrent heat exchange between large arteries and veins, (7) heat loss through the respiratory tract, (8) sweating, (9) shivering, (10) the storage of heat, and (11) the condition of the environment, including its temperature, motion relative to the body, and relative humidity. This report describes the progress which was made on the synthesis of such a model. (Author).