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http://dx.doi.org/10.4313/JKEM.2020.33.4.321

Thermal Characteristics Simulation with Detecting Temperature for the Wearable Nylon-Yarn NOx Gas Sensors  

Jang, Kyung-Uk (Department of Electrical Engineering, Gachon University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.33, no.4, 2020 , pp. 321-325 More about this Journal
Abstract
Atmospheric environmental problems have a major impact on human health and lifestyle. In humans, inhalation of nitrogen oxides causes respiratory diseases, such as bronchitis. In this paper, thermal analysis of a gas sensor was carried out to design and fabricate a wearable nylon-yarn gas sensor for the detection of NOx gas. In the thermal analysis method, the thermal diffusion process was analyzed while operating the sensors at 40 and 60℃ to secure a temperature range that does not cause thermal runaway due to temperature in the operating environment. Thermal diffusion analysis was performed using the COMSOL software. The thermal analysis results could be useful for analyzing gas adsorption and desorption, as well as the design of gas sensors. The thermal energy diffusion rate increased slightly from 10.05 to 10.1 K/mm as the sensor temperature increased from 40 to 60℃. It was concluded that the sensor could be operated in this temperature range without thermal breakdown.
Keywords
Wearable sensor; Nylon + MWCNT gas sensor; Comsol; FEM; Heating energy simulation;
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Times Cited By KSCI : 3  (Citation Analysis)
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