BS ISO 14505-4:2021:2022 Edition

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Ergonomics of the thermal environment. Evaluation of thermal environments in vehicles – Determination of the equivalent temperature by means of a numerical manikin

Published By	Publication Date	Number of Pages
BSI	2022	54

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Description

This document provides guidelines for extending the definition of equivalent temperature to predictive purposes and specifies a standard prediction method for the assessment of thermal comfort in vehicles using numerical calculations. Specifically, this document sets forth a simulated numerical manikin as a viable alternative to the thermal manikin for the purpose of calculating the equivalent temperature.

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PDF Pages	PDF Title
2	National foreword
6	Foreword
7	Introduction
9	1 Scope 2 Normative references 3 Terms and definitions
10	4 Symbols
12	5 Assessment of thermal environments in vehicles 6 Principles of assessment utilizing a numerical manikin
13	7 Calculation method coupled with numerical manikin 7.1 General
14	7.2 Flow and thermal field around manikin 7.2.1 Convective heat
15	7.2.2 Radiant heat 7.2.3 Conductive heat 7.3 Calculation of heat exchange on manikin 7.3.1 Structure and control of numerical manikin
17	7.3.2 Calculation of heat exchange 7.4 Calculation of h cal 7.5 Calculation outputs
18	8 Calculation method using thermal factors 8.1 General 8.2 Flow and thermal field around manikin 8.2.1 Convective heat 8.2.2 Radiant heat
19	8.2.3 Conductive heat 8.3 Calculation of heat exchange 8.4 Calculation of hcal 8.5 Calculation outputs 8.5.1 General 8.5.2 Constant temperature mode
20	8.5.3 Constant heat flux mode 8.5.4 Comfort equation mode
21	Annex A (informative) Calculation via computational fluid dynamics (CFD) technique
24	Annex B (informative) Typical inputs and outputs of calculation with numerical manikin
30	Annex C (informative) Treatment of radiant heat transfer
32	Annex D (informative) Typical inputs and outputs of calculations using thermal factors
35	Annex E (informative) Calculation method of h cal
45	Annex F (informative) Development of formulae for equivalent temperature calculations using thermal factors
51	Bibliography

Additional information

Status	Definitive
Pages	54
Publication Date	2022-03-21
ISBN	978 0 539 03774 6
Standard Number	BS ISO 14505-4:2021
Title	Ergonomics of the thermal environment. Evaluation of thermal environments in vehicles – Determination of the equivalent temperature by means of a numerical manikin
Identical National Standard Of	ISO 14505-4
Descriptors	Thermal comfort, Performance testing, Cabs, Aircraft, Vehicles, Railway vehicles, Ergonomics, Thermal measurement, Thermal environment systems, Work stations, Cranes, Road vehicles, Ships
Publisher	BSI
Committee	PH/9/-/1
ICS Codes	43.020 - Road vehicles in general

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BS ISO 14505-4:2021:2022 Edition

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