1st Edition

Textiles and Human Thermophysiological Comfort in the Indoor Environment

By Radostina A. Angelova Copyright 2016
    362 Pages
    by CRC Press

    362 Pages 180 B/W Illustrations
    by CRC Press

    Textiles and Human Thermophysiological Comfort in the Indoor Environment delivers a methodical assessment of textile structures for various applications in the indoor environment with respect to the thermophysiological comfort of the inhabitants. The book begins by offering an overview of the role of indoor textiles and clothing as a barrier between the environment and the human body, and then:

    • Explores the use of textiles as an insulation barrier, examining the relationships between textiles and the environment, and textiles and the human body
    • Details an experimental study of heat and mass transfer processes through woven textiles with different applications in the indoor environment
    • Describes a numerical investigation of the transport of air and heat through woven fabrics by means of computational fluid dynamics (CFD)
    • Develops, applies, and verifies an original approach for simulating the woven macrostructure as a jet system, presenting proven results
    • Evaluates thermophysiological comfort under the influence of indoor environmental parameters, clothing insulation, and activity

    Textiles and Human Thermophysiological Comfort in the Indoor Environment provides a valuable reference for students and researchers working in the area of clothing comfort.

    INTERACTION OF TEXTILES AND CLOTHING WITH THE ENVIRONMENT AND MAN

    Human Comfort: Thermophysiological Comfort
    Role of Textiles and Clothing
    Human Comfort
    Physiological and Thermophysiological Comfort
    Summary

    Textiles and Clothing in the Indoor Environment
    Interaction between the Human Body and the Indoor Environment
    Textiles in the Indoor Environment
    Summary

    Thermal Insulation Properties of Textiles and Clothing
    Hierarchical Structure of Textiles
    Heat Transfer Through a Textile Layer
    Transfer of Fluid Through a Textile Layer
    Thermal Insulation of Textiles and Clothing
    Factors that Influence the Thermal Insulation of the Textiles
    Methods for Determination of Thermal Insulation Properties of Textiles
    Thermophysiological Comfort and Special Textile Materials and Garments
    Summary

    Interaction between Textiles and Clothing and the Human Body
    Regulation of Body Heat
    Mechanisms of Heat Losses and Heat Generation of the Human Body
    Impact of the Textiles in the Indoor Environment on the Human Body
    Summary

    EXPERIMENTAL STUDY OF WOVEN TEXTILES USED IN THE INDOOR ENVIRONMENT

    General Considerations and Methodology of the Experimental Study
    Aims and Scope of the Experimental Study
    General Description of the Study
    Calculation of the Relative Error
    Summary

    Experimental Investigation of the Mesostructure
    State of the Art of the Problem
    Impact of the Mesostructure on the Transfer of Heat and Fluids
    Properties of the Yarns
    Manufacturing of Identical Woven Structures from Different Yarns
    Analysis of the Effect of the Mesostructure on the Air Permeability of the Macrostructure
    Analysis of the Effect of the Mesostructure on the Heat Transfer Through the Macrostructure
    Analysis of the Effect of the Mesostructure on the Moisture Transfer Through the Macrostructure
    Summary

    Experimental Investigation of the Macrostructure of Textiles for Clothing and Bedding
    Introduction
    Properties of the Macrostructures
    Experimental Assessment of the Porosity
    Experimental Assessment of the Air Permeability
    Experimental Assessment of the Conductive Heat Transfer
    Experimental Assessment of the Moisture Transport
    Summary

    Experimental Investigation of the Macrostructure of Textiles for Surgical Clothes and Medical Drapes
    Introduction
    Thermophysiological Comfort in an Operating Room
    Properties of Single Woven Structures for Surgical Clothes and Drapes
    Experimental Assessment of the Air Permeability of a Single Layer
    Experimental Assessment of the Air Permeability of Multilayer Systems
    Theoretical Models for the Air Permeability of Systems of Layers
    Experimental Assessment of the Moisture Transport
    Summary

    Experimental Investigation of the Macrostructure of Upholstery Textiles
    State of the Art of the Problem
    Experimental Assessment of the Air Permeability
    Experimental Assessment of the Heat Transfer
    Summary

    Experimental Investigation of the Macrostructure of Textiles for Packing
    State of the Art of the Problem
    Properties of the Macrostructures
    Experimental Assessment of the Porosity
    Experimental Assessment of the Air Permeability of a Single Layer
    Experimental Assessment of the Air Permeability of Double-Layered Systems
    Theoretical Assessment of the Air Permeability of Double-Layered Systems
    Summary

    Experimental Investigation of Textile Macrostructures in the Indoor Environment
    Introduction
    Materials in Contact with the Air in the Indoor Environment
    Distribution of the Moisture Buffering Materials in Real Enclosures: Offices and Hotel Rooms
    Interaction of Textiles with Water Vapor Indoors
    Sorption Isotherms
    Summary

    MATHEMATICAL MODELING AND NUMERICAL STUDY OF THE PROPERTIES OF WOVEN STRUCTURES WITH RESPECT TO THE THERMOPHYSIOLOGICAL COMFORT

    Mathematical Modeling and Numerical Simulation of the Air Permeability and Heat Transfer Through Woven Macrostructures: State of the Art
    Introduction
    Air Permeability Modeling
    Heat Transfer Modeling
    Summary

    Simulation of the Air Permeability by Using Hagen–Poiseuille Law
    Applicability of the Hagen–Poiseuille Law
    Mathematical Model for Calculation of the Air Permeability
    Theoretical Results
    Verification of the Model
    Numerical Simulation of the Air Permeability of Textiles for Clothing and Bedding
    Summary

    Mathematical Modeling and Numerical Simulation of the Air Permeability of Woven Structures by CFD
    Methods for Modeling of Fluid Flows
    Mathematical Model
    Turbulence Modeling
    Theoretical Background of the Modeling of the Woven Macrostructure
    Numerical Procedure for the Parametric Study
    Numerical Results from the Parametric Study
    Numerical Procedure for the Model Study
    Numerical Results from the Model Study
    Summary

    Mathematical Modeling and Numerical Simulation of the Heat Transfer Through Woven Structures by CFD
    Mathematical Model
    Numerical Procedure for the Study
    Numerical Results
    Summary

    MATHEMATICAL MODELING AND NUMERICAL STUDY OF THE THERMOPHYSIOLOGICAL COMFORT WITH A THERMOPHYSIOLOGICAL MODEL OF THE HUMAN BODY

    Thermoregulation of a Clothed Body: Physiological Peculiarities
    Thermophysiological Control of the Human Body
    Thermophysiological Models
    Gagge’s Thermophysiological Model
    Implementation of the Model in FLUENT CFD Software Package
    Summary

    Numerical Study of the Thermophysiological Comfort of a Clothed Body
    Specifics of the Study
    Mathematical Model
    Procedure of the Study
    Summary

    Results from the Numerical Study on the Thermophysiological Comfort of a Clothed Body
    Influence of the Environmental Parameters
    Influence of the Clothing Insulation
    Influence of the Activity
    Application Analyses of the Numerical Results
    Summary

    Biography

    Radostina A. Angelova holds an M.Sc in textiles and clothing (1994), a Ph.D in technology of textile materials (2001), and a D.Sc in technology of textile materials (2015). She is currently an associated professor in the Department of Textiles and an associate researcher in the Centre for Research and Design in Human Comfort, Energy, and Environment (CERDECEN) at the Technical University of Sofia, Bulgaria. Dr. Angelova lectures on spinning technologies and machines, weaving technologies and machines, and the design of yarns and fabrics. She has authored five books and more than 100 papers.

    "… a very comprehensive textbook that covers the interactions between humans, clothing, and the environment. The fundamentals of heat transfer modes, roles of textile mesostructures and macrostructures on heat transfer and air permeability, and modeling methodologies are covered in adequate depth. … an excellent source of knowledge for students and researchers working in the area of clothing comfort."
    —Dr. Abhijit Majumdar, Associate Professor, Department of Textile Technology, Indian Institute of Technology, Delhi

    "… a very good systematic study about all the topics related to thermophysiological comfort in the indoor environment. … gives the fundamentals and enough experimental data, which can be used directly by researchers and students, as well as enough methods for numerical and experimental investigations for optimizing textiles."
    —Dr. Yordan Kyosev, Professor, Hochschule Niederrhein – University of Applied Sciences, Mönchengladbach, Germany