Protective clothing in hot environments.

@article{Holmr2006ProtectiveCI,
  title={Protective clothing in hot environments.},
  author={I. Holm{\'e}r},
  journal={Industrial health},
  year={2006},
  volume={44 3},
  pages={
          404-13
        }
}
  • I. Holmér
  • Published 2006
  • Environmental Science, Medicine
  • Industrial health
The high level of protection required by personal protective clothing (PPC) severely impedes heat exchange by sweat evaporation. As a result work associated with wearing PPC, particularly in hot environments, implies considerable physiological strain and may render workers exhausted in a short time. Recent development of algorithms for describing the heat transfer, accounting for pumping and wind effects, comprises improvement of the prediction of thermal stress. Realistic corrections can then… Expand
Encapsulated environment.
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Individuals with low body fatness who perform regular aerobic exercise have tolerance times in PPC that exceed those of their sedentary counterparts by as much as 100% due to lower resting temperature, the higher Tc tolerated at exhaustion and a slower increase in Tc during exercise, however, questions remain about the importance of activity levels, exercise intensity, cold water ingestion, and plasma volume expansion for thermotolerance. Expand
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  • Chuan-Kun Zhang, Ying Chen, Guo-Jie Liang, Xin-Bo Wang, Xiao-Hui Zheng, Song-Tao Ding
  • Medicine
  • Journal of Central South University
  • 2021
Heat strain experienced by individuals wearing chemical protective clothing (CPC) is severe and dangerous especially in hot-humid environment. The development of material science andExpand
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It is currently unclear how the assembly of different fabric layers of personal protective clothing (PPC) contributes to differences in thermal comfort among garments. Therefore, we used twoExpand
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This review systematically reviewed the literature on PPC and heat stress, focusing on research relating to working conditions of high temperature and humidity, and provides a foundation and directions for further research in low-level risk PPC. Expand
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Clothing evaporative resistance is one of the most important inputs for both the modelling and for standards dealing with thermal comfort and heat stress. It might be determined on guarded hotplates,Expand
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Heat transfer from the human body, especially through the evaporation of sweat from the skin, is often restricted when protective clothing is used, which may result in overheating. For this reason,Expand
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Abstract Protective clothing is important to work and for survival for firefighters in extreme environments, thermo-physical properties of which are influenced by the moisture. Moisture transfer andExpand
Impact of Clothing on Exercise in the Heat
TLDR
The incorporation of protocols that more closely mirror sporting and recreational activity lasting >60 min as well as simulated work-related protocols lasting >120 min is warranted and the effects of clothing characteristics on comfort during exercise and recovery are considered. Expand
Baseline Evaluation With a Sweating Thermal Manikin of Personal Protective Ensembles Recommended for Use in West Africa
TLDR
To maximize work capacity and to protect health care workers in the challenging ambient conditions of West Africa, consideration should be given to adjustment of work and rest schedules, improvement of PPE (e.g., using less impermeable and more breathable fabrics that provide the same protection), and the possible use of cooling devices worn simultaneously with PPE. Expand
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References

SHOWING 1-10 OF 40 REFERENCES
Protective clothing and heat stress.
  • I. Holmér
  • Environmental Science, Medicine
  • Ergonomics
  • 1995
TLDR
Current methods of describing evaporativeHeat exchange with PPC are insufficient, will overestimate evaporative heat loss and should not be recommended, and more reliable measures of the resistance to evaporativeheat transfer by PPC should be developed and standardized. Expand
Thermal strain resulting from protective clothing of an armored vehicle crew in warm conditions.
TLDR
The technique shows that evaporation through heavy clothing is not negligible and it is suggested that usual static measurements using physical models underestimate the evaporative heat transfer through clothing layers. Expand
Clothing ventilation and human thermal response
Given the importance of heat balance being maintained between a person and their environment an appropriate clothing choice is essential. Since military personnel are required to work effectivelyExpand
Measurement of the clothing ventilation index.
TLDR
A new procedure for estimating under working conditions, the volume of air flowing through the micro-environment is described and it is proposed that this index be used to describe the performance of protective clothing assemblies. Expand
Physiologically derived critical evaporative coefficients for protective clothing ensembles.
TLDR
A physiological approach has been used to derive effective evaporative coefficients (he) which define this ability to evaporate sweat, and critical pressure was defined as the partial pressure of water vapor at which thermal balance could no longer be maintained and rectal temperature rose sharply. Expand
Prediction of wind effects on cold protective clothing
Abstract : Cold protective clothing is characterized by its thermal insulation and wind-proof properties. Standard insulation is measured for complete ensembles under static and wind still conditionsExpand
Assessment of Ventilation Characteristics of Standard and Prototype Firefighter Protective Clothing1
Specialized clothing is an integral part of a firefighter's protective system. However, existing fire fighter clothing, which attempts to protect against environmental hazards, also restrictsExpand
Physiological evaluation of the resistance to evaporative heat transfer by clothing.
TLDR
A rainwear made of a new fabric (Gore-Tex) produced a significantly lower evaporative resistance than a rainwearmade of traditional material (nylon) when evaluated to evaluate the heat transfer properties of two types of rainwear and an overall. Expand
Interaction effects of radiation and convection measured by a thermal manikin wearing protective clothing with different radiant properties
As part of the EU funded research project THERMPROTECT ('Thermal properties of protective clothing and their use') this paper deals with manikin experiments on the effects of heat radiation atExpand
Temperature and humidity within the clothing microenvironment.
TLDR
Results indicate that although microenvironment temperatures were similar among suits and slightly lower than that of the environment, the RH mu and VP mu were much greater than those of the ambient air. Expand
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