A DEVICE FOR STUDYING THE THERMOPHYSICAL PROPERTIES OF BULK TEXTILE MATERIALS AND THEIR PACKAGES BY THE REGULAR MODE METHOD IN AIR
Abstract
Textile fabrics have different heat transfer properties, which depend on the conditions of consumption of the product and various types of processing. All this is of scientific interest for identifying factors and features of individual materials. The purpose of the study was to track heat transfer through packages of multilayer textile materials in stationary and transient thermal conditions. A particular property of textile materials lies in their ability to deform under their weight so that a sample can be placed between meshes of a material with high heat resistance. Heat transfer is carried out by convective heat transfer between the surface of the material and the air. To conduct this study, the Fourier law was used in the calculations and numerical methods for solving heat conduction problems. The developed program, which was created for the study, permit to write parameters to a computer and uses them to calculate the thermophysical properties of the sample. As a result of the work, graphs of the state of the package of materials were presented, and a device was proposed that allows to determine the modes that characterize the thermophysical properties of the materials used in the manufacture of clothing and its packages. The device admits with high accuracy to record, record and store changes in the parameters at which studies were conducted.