Designing the half-masks of filter respirators for workers of mining enterprises

The purpose of paper is to develop an algorithm for designing the half-masks of air-purifying respirators and assessment of their safety factor of insulation. To create a 3D model of a head, two-parameter NIOSH tables (National Institute for Occupational Safety and Health) were used. The model drawi...

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Main Authors:	Holinko Vasyl, Cheberiachko Ivan, Symanovych Hennadii, Kicki Jerzy
Format:	Article
Language:	English
Published:	EDP Sciences 2019-01-01
Series:	E3S Web of Conferences
Online Access:	https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/49/e3sconf_usme2019_01001.pdf

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spelling	doaj-20fb827371634aef97f4e5deac6389a42021-03-02T10:27:36ZengEDP SciencesE3S Web of Conferences2267-12422019-01-011230100110.1051/e3sconf/201912301001e3sconf_usme2019_01001Designing the half-masks of filter respirators for workers of mining enterprisesHolinko Vasyl0Cheberiachko Ivan1Symanovych Hennadii2Kicki Jerzy3Dnipro University of Technology, Department of Labour Protection and Civil SafetyDnipro University of Technology, Department of Labour Protection and Civil SafetyDnipro University of Technology, Department of Labour Protection and Civil SafetyMineral and Energy Economy Research Institute of the Polish Academy of Sciences, Division of Mineral Resource AcquisitionThe purpose of paper is to develop an algorithm for designing the half-masks of air-purifying respirators and assessment of their safety factor of insulation. To create a 3D model of a head, two-parameter NIOSH tables (National Institute for Occupational Safety and Health) were used. The model drawings were made with the use of Solid works software package. Differential geometrical method based on applying the moving Frénet trihedral was used to design half-masks. Two designs of the respirator half-mask were developed based on the averaged length and width of face (Modification 1), and length of face and lips (Modification 2). As a result of modeling test, the area and perimeter of the mask contact line have been defined. The safety factor of half-mask insulation was calculated theoretically. It has been established that the safety factor of Modification 1 half-mask is 2.5 times higher.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/49/e3sconf_usme2019_01001.pdf
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Holinko Vasyl Cheberiachko Ivan Symanovych Hennadii Kicki Jerzy
spellingShingle	Holinko Vasyl Cheberiachko Ivan Symanovych Hennadii Kicki Jerzy Designing the half-masks of filter respirators for workers of mining enterprises E3S Web of Conferences
author_facet	Holinko Vasyl Cheberiachko Ivan Symanovych Hennadii Kicki Jerzy
author_sort	Holinko Vasyl
title	Designing the half-masks of filter respirators for workers of mining enterprises
title_short	Designing the half-masks of filter respirators for workers of mining enterprises
title_full	Designing the half-masks of filter respirators for workers of mining enterprises
title_fullStr	Designing the half-masks of filter respirators for workers of mining enterprises
title_full_unstemmed	Designing the half-masks of filter respirators for workers of mining enterprises
title_sort	designing the half-masks of filter respirators for workers of mining enterprises
publisher	EDP Sciences
series	E3S Web of Conferences
issn	2267-1242
publishDate	2019-01-01
description	The purpose of paper is to develop an algorithm for designing the half-masks of air-purifying respirators and assessment of their safety factor of insulation. To create a 3D model of a head, two-parameter NIOSH tables (National Institute for Occupational Safety and Health) were used. The model drawings were made with the use of Solid works software package. Differential geometrical method based on applying the moving Frénet trihedral was used to design half-masks. Two designs of the respirator half-mask were developed based on the averaged length and width of face (Modification 1), and length of face and lips (Modification 2). As a result of modeling test, the area and perimeter of the mask contact line have been defined. The safety factor of half-mask insulation was calculated theoretically. It has been established that the safety factor of Modification 1 half-mask is 2.5 times higher.
url	https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/49/e3sconf_usme2019_01001.pdf
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Designing the half-masks of filter respirators for workers of mining enterprises

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