Survey of heat stress in industry
Article Abstract:
Heat stress arises from short exposures of unacclimatized workers to high-stress conditions, short exposures of acclimatized workers to radiant heat and continuous exposure of acclimatized workers to hot conditions. Quantification of the heat stress that varies with climate is difficult because of the variations in quantification indices and the problems associated with measurement. Required Sweat Rate is an exact representation of true heat stress and enables a comparison of the thermal conditions prevalent in various industries. Heat stress prevention includes the principles of reducing exposure time, minimizing thermal stress and improving the physical ability of workers to adapt to the stress.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 1995
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Comparison and validation of heat stress indices in experimental studies
Article Abstract:
Analysis of the results of five experimental series on 32 volunteers helps find the most suitable method for the use of heat stress indices under oscillating ambient conditions and the means of enhancing the prediction potential of the Required Sweat Rate index (SWreq). A model that includes the effect of a step change in ambient conditions on sweat rate and skin temperature, and uses exponential weighting algorithms yields the best prediction of body sweat loss during exposure to quick climatic changes. Sweating calculation and mean skin temperature variation assessment will help improve the prediction accuracy of SWreq.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 1995
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Methodology of investigation of hot working conditions in the field
Article Abstract:
An analysis of the different methods used for hot environment evaluation reveals that heat stress arises from short spells of intense exposure spaced with comparatively long periods of comfortable or cold conditions. Hot environment assessment should consider the intermittency and include the fluctuations while calculating heat stress indices. The zone method of environmental assessment is suitable for conditions with spatial and temporal climatic changes while the ambulatory method assesses situations with sizable climatic heterogeneities.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
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