HEAT STRESS EVALUATION OF WORKERS IN THE AUTOMOTIVE INDUSTRY USING PREDICTED HEAT STRAIN

• Main Author: Ayu Pratiwi Sidik, Kirana
• Format: Theses
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/63074
• Institution: Institut Teknologi Bandung

There have been many cases of injury and death of workers due to heat exposure. Lack of ventilation, limited air-conditioning supplies, and poor welfare facilities result in increased heat levels in the workplace. However, the use of a cooling system is not the most environmentally friendly solution. This study aims to analyzing the engineering of environmental variables to reduce potential heat stress without using an air conditioning system and analyzing the effectiveness of an industry's efforts to reduce potential heat stress in the work environment. The research was conducted in an automotive industry which in its production section produces a high heat. The type of research used is analytic observational cross-sectional, with quantitative methods. The data consist of work environment climate and personal heat exposure. PHSFL software is used as a tool to predict personal heat strain. Statistical data analysis used correlation and regression analysis. The results showed that air temperature and velocity had a strong affect on the potential heat stress of workers. The results of the heat strain prediction on workers carried out in the six work units showed the results for the three heat stress indicators as follows: the maximum tolerance time for the body core temperature of the workers in the six units was 480 minutes; The maximum tolerance time for water loss in the worker's body (minutes) in the six work units consecutively is 330 ± 21.2, 398.5 ± 24.6, 237 ± 16, 372.8 ± 25.6, 357.4 ± 38.2 and 408; and the predicted sweat rate of workers (W/m2) in the six units consecutively is 254.7 ± 26.2, 200.3 ± 1, 346.3 ± 1.8, 200 ± 1.1, 201.1 ± 0, 8 and 176.3.