Abstract
In this study, the ejector installation has been designed and processed according to the plan and further investigated the effect of the ejector’s performance on reducing air pollutants in a welding chamber. This is done after gas and dust particles appear during the welding process. The measurement of air pollutants was carried out in two conditions. The first condition during the welding process was without using the ejector and the second condition is when the welding process continues and the ejector runs simultaneously. The measurements were made for carbon monoxide (CO) gas, nitrogen monoxide (NO) gas and total suspended particles. The ambient gas sampler was used in measuring CO and NO gases, while the Staflex air sampler measures dust particles. The results show that when the ejector is run or in the second condition, carbon monoxide and nitrogen monoxide and total dust particles are lower in concentration compared to the situation when the ejector is not running.
Highlights
The rapid industrialization over the past two decades has caused many problems in the environment, including air pollution whose influence has started to be felt and even become a pivotal problem today and certainly requires special attention in the development of a country (Lima et al 2009), including in the City of Makassar, South Sulawesi Province
According to Deutsche Industrie Normen (DIN), welding is a metallurgical bond on alloy metal joints that is carried out in hot and liquid conditions, further explained that welding is a process where the same material and type are combined together so that a connection is formed through the chemical bonds produced from the use of heat and pressure (Suharno 2008)
This gas has a high affinity for haemoglobin (Hb) which will reduce the absorption of oxygen, and the condition of the total suspended particles (TSP) needs attention in the welding room (Harsono 1996)
Summary
The rapid industrialization over the past two decades has caused many problems in the environment, including air pollution whose influence has started to be felt and even become a pivotal problem today and certainly requires special attention in the development of a country (Lima et al 2009), including in the City of Makassar, South Sulawesi Province. In line with that when the welding process takes place, there are dangerous gases which need to be considered such as carbon monoxide gas We will investigate in this study whether there is a reduction in the concentration of gases and particles in the air that arise carbon monoxide (CO), nitrogen monoxide (NO) and total suspended particles (TSP) with tools that have been designed with the ejector method.
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Published Version
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