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Simulation of a steady-state integrated human thermal system.The mathematical model of an integrated human thermal system is formulated. The system consists of an external thermal regulation device on the human body. The purpose of the device (a network of cooling tubes held in contact with the surface of the skin) is to maintain the human body in a state of thermoneutrality. The device is controlled by varying the inlet coolant temperature and coolant mass flow rate. The differential equations of the model are approximated by a set of algebraic equations which result from the application of the explicit forward finite difference method to the differential equations. The integrated human thermal system is simulated for a variety of combinations of the inlet coolant temperature, coolant mass flow rate, and metabolic rates. Two specific cases are considered: (1) the external thermal regulation device is placed only on the head and (2) the devices are placed on the head and the torso. The results of the simulation indicate that when the human body is exposed to hot environment, thermoneutrality can be attained by localized cooling if the operating variables of the external regulation device(s) are properly controlled.
Document ID
19720039155
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hsu, F. T.
Fan, L. T.
Hwang, C. L.
(Kansas State University of Agriculture and Applied Science, Manhattan, Kan., United States)
Date Acquired
August 6, 2013
Publication Date
February 1, 1972
Publication Information
Publication: Computers in Biology and Medicine
Volume: 2
Subject Category
Biotechnology
Accession Number
72A22821
Funding Number(s)
OTHER: F44620-68-0020
OTHER: NGR-17-001-034
PROJECT: PROJECT THEMIS
Distribution Limits
Public
Copyright
Other

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