정은진 (서강대학교)

오한빈 (서강대학교)

정은진 (서강대학교)

오한빈 (서강대학교)

In this study, we developed a new gas pretreatment device for moisture removal and constructed a system capable of remote operation via a web-based interface. As demonstrated by industrial accidents resulting in harmful gas leaks and the deterioration of air quality in urban areas, the precision of gas analysis is essential across various fields such as environmental monitoring, industrial process control, and health and safety management. Despite numerous advances in rapid and accurate gas analysis, prevailing methods often involve high costs and low user-friendliness. This research aims to overcome these limitations by developing a gas pretreatment device that effectively removes moisture, a common interferent in gas analysis. From a hardware perspective, we optimized gas injection by designing the internals using various valves and gas fittings. The moisture in the injected gas can be removed through a cooling-condensation process as it passes through a refrigerator module. On the software side, a system was built using Raspberry Pi and Arduino Mega to enable central control of the device, allowing users to remotely operate the device through a web-based user interface. The device will be used to pretreat gas samples, which will then be compared to untreated gas samples in terms of analysis efficiency. This comparison aims to validate the effectiveness of our pretreatment method in eliminating analytical interferents.