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A Study Of The Thermoregulatory Characteristics Of A Liquid Cooled Garment With Automatic Temperature Control Based On Sweat Rate
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Book Synopsis A Study of the Thermoregulatory Characteristics of a Liquid-cooled Garment with Automatic Temperature Control Based on Sweat Rate by : Alan B. Chambers
Download or read book A Study of the Thermoregulatory Characteristics of a Liquid-cooled Garment with Automatic Temperature Control Based on Sweat Rate written by Alan B. Chambers and published by . This book was released on 1973 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1973 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Selected Bibliography on Hazardous Materials Control by :
Download or read book A Selected Bibliography on Hazardous Materials Control written by and published by . This book was released on 1983 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Control of Thermal Balance by a Liquid Circulating Garment Based on a Mathematical Representation of the Human Thermoregulatory System by : Lawrence Howard Kuznetz
Download or read book Control of Thermal Balance by a Liquid Circulating Garment Based on a Mathematical Representation of the Human Thermoregulatory System written by Lawrence Howard Kuznetz and published by . This book was released on 1975 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1973 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerospace Medicine and Biology written by and published by . This book was released on 1973 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
Download or read book STAR written by and published by . This book was released on 1973 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ames Research Center Publications, July 1971 Through December 1973 by :
Download or read book Ames Research Center Publications, July 1971 Through December 1973 written by and published by . This book was released on 1975 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Topics in Transport Phenomena by : Chaim Gutfinger
Download or read book Topics in Transport Phenomena written by Chaim Gutfinger and published by Hemisphere Pub. This book was released on 1975 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Aeronautical Journal written by and published by . This book was released on 1973 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Improved Thermoregulatory Model for Cooling Garment Applications with Transient Metabolic Rates by : Johan K. Westin
Download or read book An Improved Thermoregulatory Model for Cooling Garment Applications with Transient Metabolic Rates written by Johan K. Westin and published by . This book was released on 2008 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current state-of-the-art thermoregulatory models do not predict body temperatures with the accuracies that are required for the development of automatic cooling control in liquid cooling garment (LCG) systems. Automatic cooling control would be beneficial in a variety of space, aviation, military, and industrial environments for optimizing cooling efficiency, for making LCGs as portable and practical as possible, for alleviating the individual from manual cooling control, and for improving thermal comfort and cognitive performance. In this study, we adopt the Fiala thermoregulatory model, which has previously demonstrated state-of-the-art predictive abilities in air environments, for use in LCG environments. We validate the numerical formulation with analytical solutions to the bioheat equation, and find our model to be accurate and stable with a variety of different grid configurations. We then compare the thermoregulatory model's tissue temperature predictions with experimental data where individuals, equipped with an LCG, exercise according to a 700 W rectangular type activity schedule. The root mean square (RMS) deviation between the model response and the mean experimental group response is 0.16°C for the rectal temperature and 0.70°C for the mean skin temperature, which is within state-of-the-art variations. However, with a mean absolute body heat storage error [mean absolute error subscript BHS] of 9.7 W·h, the model fails to satisfy the "6.5 W·h accuracy that is required for the automatic LCG cooling control development. In order to improve model predictions, we modify the blood flow dynamics of the thermoregulatory model. Instead of using step responses to changing requirements, we introduce exponential responses to the muscle blood flow and the vasoconstriction command. We find that such modifications have an insignificant effect on temperature predictions. However, a new vasoconstriction dependency, i.e. the rate of change of hypothalamus temperature weighted by the hypothalamus error signal ([delta]T[subscript hy]·dT[subscript hy]/dt), proves to be an important signal that governs the thermoregulatory response during conditions of simultaneously increasing core and decreasing skin temperatures, which is a common scenario in LCG environments. With the new [delta]T[subscript hy]·dT[subscript hy]/dt dependency in the vasoconstriction command, the [mean absolute error subscript BHS] for the exercise period is reduced by 59% (from 12.9 W·h to 5.2 W·h). Even though the new [mean absolute error subscript BHS] of 5.8 W·h for the total activity schedule is within the target accuracy of "6.5 W·h, [mean absolute error subscript BHS] fails to stay within the target accuracy during the entire activity schedule. With additional improvements to the central blood pool formulation, the LCG boundary condition, and the agreement between model set-points and actual experimental initial conditions, it seems possible to achieve the strict accuracy that is needed for automatic cooling control development.
Book Synopsis Control of Thermal Balance by a Liquid Circulating Garment Based on a Mathematical Representation of the Human Thermoregulatory System by : Lawrence Howard Kuznetz
Download or read book Control of Thermal Balance by a Liquid Circulating Garment Based on a Mathematical Representation of the Human Thermoregulatory System written by Lawrence Howard Kuznetz and published by . This book was released on 1975 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1973 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1973 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Scientific and Industrial Reports by :
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1973 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiological and Behavioral Temperature Regulation by : James Daniel Hardy
Download or read book Physiological and Behavioral Temperature Regulation written by James Daniel Hardy and published by . This book was released on 1970 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Garment Cooling: Innovations, Science, and Applications by : Charles Nehme
Download or read book Garment Cooling: Innovations, Science, and Applications written by Charles Nehme and published by Charles Nehme. This book was released on with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Purpose of the Book In an increasingly globalized world where human activity often takes place in extreme climates, the importance of maintaining thermal comfort cannot be overstated. Whether it's athletes pushing their limits, workers laboring in hot environments, or patients recovering from medical procedures, the need for effective cooling solutions is paramount. This book, Garment Cooling: Innovations, Science, and Applications, aims to explore the rapidly evolving field of cooling garments—textiles and clothing designed to regulate body temperature, improve comfort, and enhance performance. The primary goal of this book is to provide a comprehensive guide to the technology, science, and real-world applications of garment cooling. We will delve into the history and evolution of cooling garments, examine the materials and technologies that make them effective, and explore their use across various industries. Additionally, we will look ahead to future trends and innovations that promise to revolutionize the field. Target Audience This book is intended for a diverse audience: Engineers and Designers who are developing the next generation of cooling garments and need a solid foundation in both the underlying science and the latest technological advancements. Researchers and Academics interested in the study of human thermoregulation and the role of textiles in temperature control. Athletes and Coaches seeking to understand how cooling garments can enhance performance and recovery. Healthcare Professionals exploring new therapeutic applications for cooling garments, particularly in the management of heat stress and other medical conditions. Industrial and Military Leaders looking for solutions to protect workers and soldiers from heat-related injuries. Consumers who are curious about how these garments can improve comfort in everyday life. Scope and Structure Garment Cooling: Innovations, Science, and Applications is structured to provide a thorough understanding of the subject, starting with the basic science of human thermoregulation and moving through the various technologies and materials used in cooling garments. We will explore the design and engineering challenges involved in creating effective cooling solutions and examine how these garments are applied across different industries. Each chapter is designed to build on the previous one, creating a cohesive narrative that guides the reader from fundamental principles to advanced applications. Key case studies will illustrate how cooling garments have been successfully implemented in real-world scenarios, while discussions on market trends and future directions will provide insights into the evolving landscape of this industry. By the end of this book, readers will have a deep understanding of the potential of garment cooling technology, as well as the challenges and opportunities that lie ahead. Whether you are a professional in the field or simply interested in the topic, this book will equip you with the knowledge needed to navigate and contribute to the ongoing advancements in garment cooling.
