Portable instrument for WBGT, PMV & PPD analysis

Portable instrument for WBGT, PMV & PPD analysis from OTM Solutions Pte Ltd

By: OTM Solutions Pte Ltd  07/03/2014
Keywords: Portable instrument for WBGT, PMV & PPD analysis

Typical applications: Application of hot environments using WBGT index (web bulb globe temperature) in presence or absence of solar radiation Analysis of the moderate warm environment using PMV index (predicted mean vote) and PPD index (predicted percentage dissatisfied) Reference regulation: ISO 7726 : Ergonomics of the thermal environment -- Instruments for measuring physical quantities ISO 7243 : Hot environments -- Estimation of the heat stress on working man, based on the WBGT-index (wet bulb globe temperature) ISO 8996 : Ergonomics of the thermal environment -- Determination of metabolic rate ISO 7730: Ergonomics of the thermal environment -- Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria Key characteristics: Measured quantities: Globe thermometer temperature Natural web bulb temperature Environment temperature Relative humidity Air speed Calculated quantities: WBGT (in) index (wet bulb globe temperature) in absence of solar radiation WBGT (out) index (wet bulb globe temperature) in presence of solar radiation Mean radiant temperature PMV index (predicted mean vote index) PPD index (predicted percentage dissatisfied)

Keywords: Portable instrument for WBGT, PMV & PPD analysis

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