METHOD OF MULTI-OBJECTIVE ESTIMATION OF SHOP-FLOOR WORKING ZONE COMFORT

摘要

FIELD: physics.;SUBSTANCE: proposed method consists in defining concentration of aero dispersed impurities and air microclimate parameters. First, dust level of working zone is defined as the first criterion of comfort. For this, hardware is prepared and tuned for determination of clean filter bulk. Then clean filter is weighed to adjust the unit for forced deposition of dust aerosol in shop-floor working zone. Then, air is sampled with dust particles trapping on filter to weight filter with trapped particles so that dust aerosol concentration is calculated in mg per square meter. Note here that air volume (m³) that passed through filter should be pre-reduced to normal conditions, that is, to volume is would occupy at 0°C and 101325 Pa. Than, dust level is defined to compare obtained concentration with tolerable magnitude so that parameters of air micro climate may be estimated as second criterion of comfort. Note that, first, air temperature is measured by thermograph or dry-and-wet-bulb thermometer. Then, air humidity is defined by whatever instruments and air velocity is measured to calculate comfort level in working zone therefrom. Now, degree of comfort is estimated on the following scale: 1 - very hot, 2 - very warm, 3 - warm, but pleasant, 4 - sense of comfort, 5 - pleasant chilly, 6 - cold, 7 - very cold.;EFFECT: higher efficiency and reliability, fast operation.;5 dwg