Affiliation:
1. National Institute for NBC Protection, tř. Kpt. Jaroše 5, 602 00 Brno, Czech Republic
2. Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic
Abstract
The use of personal protective equipment (PPE) is essential to protect the human body in hazardous environments or where there is a risk of CBRN agents. However, PPE also poses a barrier to evaporative heat dissipation, therefore increasing heat accumulation in the body. In our research, we investigated the applicability of thermophysiological models for the prediction of thermal strain and the permissible working time in a contaminated environment when the usage of protective ensembles is required. We investigated the relationship between the thermal insulation characteristics of four types of PPE against CBRN agents and the induced thermal strain in a set of real physiological strain tests with human probands wearing the PPE in a climatic chamber. Based on the results, we compared the predictions using two thermophysiological models—Predicted Heat Strain Index (PHS) and FIALA-based model of thermal comfort (FMTK)—with the experimental data. In order to provide a user-friendly platform for the estimation of thermal stress in PPE, a user-friendly computational tool, Predictor of Thermal Stress (PTS), was developed. The PTS tool is based on an extensive database of simulated calculations using an FMTK model based on PPE characteristics, environmental conditions, individual parameters, and expected workload. The PTS tool was validated by means of the results from real tests in a climatic chamber. The PTS was shown to be an easy-to-use computational tool, which can be run on a regular PC, based on real data applicable for the estimation of the permissible work time limit with regard to thermal strain in PPE under various conditions.
Funder
Ministry of the Interior of the Czech Republic
Brno University of Technology Project
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Reference37 articles.
1. The Effect of Personal Protective Equipment on Thermal Stress: An Experimental Study on Firefighters;Ghiyasa;Work,2020
2. Heat Stress and PPE during COVID-19: Impact on Healthcare Workers’ Performance, Safety and Well-Being in NHS Settings;Davey;J. Hosp. Infect.,2020
3. Zhao, Y., Liu, J., Kim, M.K., Zhou, S., and Du, Y. (2021). Experimental Investigation on Thermal Comfort of COVID-19 Nucleic Acid Sampling Staff in Hot and Humid Environment: A Pilot Study of University Students. Appl. Sci., 11.
4. Goldman, R.F. (2000). Protecting Personnel at Hazardous Waste Sites, Elsevier.
5. Heat Stress in Chemical Protective Clothing: Porosity and Vapour Resistance;Havenith;Ergonomics,2011
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