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All Journal INDONESIAN MINING PROFESSIONALS JOURNAL
Ahmad Ihsan
Program Studi Teknik Pertambangan, Fakultas Teknik Pertambangan dan Perminyakan, Institut Teknologi Bandung, Bandung 40132, Jawa Barat, Indonesia
Aerospace Engineering

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Analysis of Carbon Monoxide Gas Dilution on Horizontal Tunnel Front using Laboratory Scale Physical Model Addien Wisnu Harnoko; Nuhindro Priagung Widodo; Ahmad Ihsan
Indonesian Mining Professionals Journal Vol 1, No 1 (2019): NOVEMBER
Publisher : PERHAPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36986/impj.v1i1.10

Abstract

Potential hazards that often occur in underground tunnels are dangerous and toxic gases, one of which is carbon monoxide (CO) which can be found in underground tunnels for example as a result of imperfect detonation on work surfaces. CO gas is very poisonous so it can cause death. This study aims to determine the spread of CO gas when diluting with tunnel ventilation in the horizontal front. This research was conducted on a physical model of the laboratory with a ratio of 1:10 compared to the actual tunnel, that is at the cross section of the model in the laboratory 40 cm x 40 cm. The effectiveness of dilution or dilution is indicated by the value of the diffusion coefficient, where the greater the diffusion coefficient, the more diffused the CO gas concentration, so the faster the CO gas concentration decreases. The parameters of the test conditions are the ratio of the duct to face distance (L/D) and the Reynolds number (Re) which shows the variation of air velocity in the tunnel work surface. Test results from the distribution of CO gas showed the influence of the configuration of the forcing duct and exhausting duct distances on the working front to the CO gas dilution. In this study also found the influence of Reynolds numbers on the value of the diffusion coefficient, that the greater the value of Re, the greater the value of E.
Co-Authors Addien Wisnu Harnoko Nuhindro Priagung Widodo