Publication detail
Study of environment thermal state on working places in hot workshops
JANOTKOVÁ, E. PAVELEK, M.
Czech title
Výzkum tepelného stavu prostředí na pracovištích v horkých provozech
English title
Study of environment thermal state on working places in hot workshops
Type
conference paper
Language
en
Original abstract
The contribution deals with the study of thermal conditions of environment on working places in hot workshops, where workers are stressed with radiation heat. To protect the workers local air supply to the workplace is used. The local air supply through an air shower was located either above the workplace or close to its floor. The study is based on operational measurements of thermal conditions of environment at the workplace. The analysis of environment thermal state was carried out by using the WBGT-index and operative temperature. The measured WBGT-index dependences on the airflow velocity specified the courses of airflow velocities along the workplace height needed to obtain homogenous environment with the optimum or acceptable value of the WBGT-index. The defined courses of velocities allow designing the optimum local air supply to hot workshops.
Czech abstract
Příspěvek se zabývá studií tepelného stavu prostředí na pracovištích v horkých provozech, kde jsou pracovníci zatíženi radiačním teplem. K ochraně pracovníků je použit lokální přívod vzduchu na pracovní místo. Lokální přívod vzduchu vzduchovou sprchou byl umístěn buď nad pracovištěm, nebo u jeho podlahy. Studie je založena na provozních měřeních tepelných podmínek prostředí na pracovním místě. Analýza tepelného stavu prostředí byla provede s použitím WBGT-indexu a operativní teploty. Z naměřené závislosti WBGT-indexu na rychlosti proudění vzduchu byly stanoveny průběhy rychlostí proudění vzduchu po výšce pracoviště potřebné pro získání homogenního prostředí s optimální nebo přípustnou hodnotou WBGT-indexu. Stanovené průběhy rychlostí slouží k návrhu optimálního lokálního přívodu vzduchu v horkých provozech.
English abstract
The contribution deals with the study of thermal conditions of environment on working places in hot workshops, where workers are stressed with radiation heat. To protect the workers local air supply to the workplace is used. The local air supply through an air shower was located either above the workplace or close to its floor. The study is based on operational measurements of thermal conditions of environment at the workplace. The analysis of environment thermal state was carried out by using the WBGT-index and operative temperature. The measured WBGT-index dependences on the airflow velocity specified the courses of airflow velocities along the workplace height needed to obtain homogenous environment with the optimum or acceptable value of the WBGT-index. The defined courses of velocities allow designing the optimum local air supply to hot workshops.
Keywords in English
Environment thermal state, Air shower, WBGT-index, Operative temperature, Visualization
RIV year
2005
Released
01.01.2005
Publisher
Indoor Air 2005
Location
Beijing
ISBN
7-89494-830-6
Book
Proceedings of the 10th International Conference on Indoor Air Quality and Climate
Pages from–to
1043–1047
Pages count
5
BIBTEX
@inproceedings{BUT20741,
author="Eva {Janotková} and Milan {Pavelek},
title="Study of environment thermal state on working places in hot workshops",
booktitle="Proceedings of the 10th International Conference on Indoor Air Quality and Climate",
year="2005",
month="January",
pages="1043--1047",
publisher="Indoor Air 2005",
address="Beijing",
isbn="7-89494-830-6"
}