Kajian Numerik Penerapan Push-Pull Ventilation dengan Rasio Kecepatan  6 dan 8 untuk Melindungi Pekerja Pabrik dari  Penularan Covid-19

Dimas Hafidz Bramansyah; Burniadi Moballa; Ni'matut Tamimah

Dimas Hafidz Bramansyah Politeknik Perkapalan Negeri Surabaya
Burniadi Moballa Politeknik Perkapalan Negeri Surabaya
Ni'matut Tamimah Politeknik Perkapalan Negeri Surabaya

Keywords: COVID-19, droplet, push-pull air-curtain, velocity ratio

Abstract

Abstract - The transmission of COVID-19 is still spreading in the world, including in Indonesia. The increasing number of positive cases of COVID-19 in Indonesia, one of the causes is transmission from industrial clusters. Keeping a minimum distance of 1 to 2 meters between workers is difficult to implement. This is due to the limitations of layout, area, and work systems in the industry. Therefore, a system is needed to protect industrial workers from potential exposure to COVID-19. One of the technologies that has a high potential to be applied is the air-curtain. In this analyzes the push-pull air curtain where there is push-pull ventilation that is able to protect workers from microdroplet inhalation. The extent to which push-pull ventilation is able to withstand droplet bursts using push-pull ventilation velocity ratios of 8 and 6. To be able to find out this, a simulation was carried out with Salome s, OpenFOAM, ParaView software. The results of the simulation carried out that the velocity ratio of 8 can withstand droplet bursts, having a percentage of droplets that penetrate 22.7 percent. Meanwhile, the ratio of 6 has a percentage value of droplets that penetrates 6.38 percent