Scholarly record
DEFINING SAFE WORKING TIME UNDER HEAVY CLIMATE CONDITIONS IN DEEP MINES
Abstract
Basing on physical model of heat exchange between human body and environment, predicted thermal load under the work site parameters, specific for deep mines, was defined in the paper. The relationships included in EN ISO 7933 standard were used for this purpose. Level of heat accumulation, degree of skin moistness, maximum volume of sweat and body dehydration were evaluated. These parameters we used to define the safe time of work under difficult climate conditions. The calculations were made in respect of acclimatized and not acclimatized workers and for different value of energy performance.
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References3
ISO 7933.: Ergonomics of the thermal environment - Analytical determination and interpretation of heat stress using calculation of the predicted heat strain, 2004.
Turkiewicz Wh, Gajosinski St., Nowysz M., Research on the influence of microclimate conditions on the thermal stress of KGHM mines workers, KGHM Cuprum, Wroclaw, Poland, 2009.
Waclawik J., Branny M.: Numerical simulation of the heat exchange between miner's body and environment and of thermal stress state, Proceedings of the 2nd School of Mine Ventilation, Zakopane, Poland, 2002.
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