Abstract
The purpose of this study is to develop new effective air supply devices, taking into account the current level of development of science and technology and the emergence of modern high-tech materials. These include microperforated fabric ducts made of a polymer composite material. The holes in such ducts are cut with a laser. The results of studying the geometric characteristics of micro holes in a textile air duct section using an optical microscope are presented. It was found that the area of the holes varies in the range from 39629 μm2 to 50955 μm2. The average value of the area of micro holes is S = 47718 µm2, which corresponds to a diameter of d = 242 µm (0.24 mm), and the diameter declared by the manufacturer is 0.2 mm. The results obtained make it possible to determine the resistance of a microperforated fabric air duct.
Highlights
Air quality is the most important indicator of the indoor working area microclimate which affecting productivity, well-being and individual comfort of a person [1-8]
Development of modern technologies is closely related with the use of new technologies and materials for air terminals production
One of the technologies is production of micro perforated textile terminals using polymer composite material – fabrics based on synthetic fibers
Summary
Air quality is the most important indicator of the indoor working area microclimate which affecting productivity, well-being and individual comfort of a person [1-8]. Development of modern technologies is closely related with the use of new technologies and materials for air terminals production. One of the technologies is production of micro perforated textile terminals using polymer composite material – fabrics based on synthetic fibers. Modern laser technologies allow burning holes in textile material with a given pitch and diameter. One of the advantages of the micro perforated textile terminal is possibility to supply air in the form of micro-jets with a small velocity directly into the human breathing zone [9]. Low air velocities in the breathing zone contribute to improving health of a person in the room and forming the required microclimate parameters and specified gas regime, taking into account variative external and internal factors [10-11]
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