Numerical Simulation and Experimental Study of Electrostatic Field near Man with Protective Polymeric Clothing

Larisa Tretiakova,Alexander Podoltsev,Ostapenko Natalia

doi:10.13189/ujeee.2017.050103

Abstract

In the article the mathematical model and the method of numerical calculation, based on the method of finite elements of three-dimensional electrostatic field near-by a man at presence of surface charge on his protective clothing, made from polymeric material, were considered. Experimental researches were conducted to determine the value of the surface charge. The results of numeral calculations of the distribution of electric potential and field intensity, as well as integral value of electric energy, stored in this field, were presented.

Highlights

Modern industrial production raises high demands to the technical improvement of equipment, processes and systems of protection against the negative impact of harmful factors
For the production of PPE polymeric materials with the volume resistance within 109...1016 (Ώ·m) are widely used. Such materials provide an effective protection against the numbers of harmful factors, but in properties they are dielectrics and create additional risks in the form of an electrostatic field (ESF) on the outer and inner layers of the surfaces of protective equipment
The ultimate aim of the calculation is the quantitative determination of the ESF values distribution and their limit values, which satisfy a number of limitations: limits of the ignition energy, limits of the acquired surface potential and limits of charges drainage speed

Summary

Introduction

Modern industrial production raises high demands to the technical improvement of equipment, processes and systems of protection against the negative impact of harmful factors. For the production of PPE (insulating and air-tight clothes, respirators and gas masks, tools for arms, legs, head and eyes protection) polymeric materials with the volume resistance within 109...1016 (Ώ·m) are widely used. Such materials provide an effective protection against the numbers of harmful factors, but in properties they are dielectrics and create additional risks in the form of an electrostatic field (ESF) on the outer and inner layers of the surfaces of protective equipment. The aim of the article is to develop the mathematical model and method of ESF calculation on the surface of the workers protective clothing, made fr2om polymeric material, considering the available information about the charge distribution

Objectives

Methods

Results

Discussion

Conclusion