Investigation of the Effect of Internal Combustion Engine Exhaust Gases on Workshop Air Quality and the Importance of Ventilation Systems

Year 2025, Volume: 9 Issue: 4, 618 - 625, 31.12.2025

Hanifi Küçüksarıyıldız , Çağlar Yaylali , Bekir Güney

https://doi.org/10.30939/ijastech..1813591

Abstract

This study investigates the effect of exhaust gases emitted from a diesel engine operated on a workbench in the Motor Workshop of the Technical Sciences Vocational School at Karamanoğlu Mehmetbey University on the air quality of the workshop environment. The study also emphasizes the importance of using ventilation systems in such enclosed settings. In the experimental study, the concentrations of carbon monoxide (CO), carbon dioxide (CO₂), hydrocarbons (HC), nitrogen oxides (NOₓ) and benzene (C₆H₆) gases released into the workshop environment during engine operation were measured. The measurements were carried out in two different situations. In the first situation, an octopus-arm ventilation system was connected to the engine's exhaust manifold, while in the second situation, the ventilation system was not operated. The gas concentrations obtained in both situations were compared with the limit values specified in national and international occupational health and safety standards. The study found that when the ventilation system was operating, harmful gas levels remained below the limit values; however, when the ventilation was turned off, some gases, primarily CO and HC, exceeded the short-term exposure limits. These findings demonstrate that the use of effective ventilation systems in engine operation applications is critical for occupational health and safety

Keywords

Diesel engine , Exhaust gas , Ventilation , Occupational health and safety , Carbon monoxide.

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