Khandaker, Sayma and Hasan, Md Mahmudul and Nurulain Nadhirah, Shaipizaman and Mohd Amir Shahlan, Mohd Aspar and Hadi, Manap Development of differential optical absorption spectroscopy (DOAS) system for hazardous methane gas detection in the near infrared region. EMITTER International Journal of Engineering Technology, 12 (2). pp. 182-195. ISSN 2335-391X. (Published)
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Abstract
Methane (CH4) is a powerful greenhouse gas that greatly contributes to global warming. It is also very combustible, which means it has a large danger of causing explosions. It is crucial to tackle methane emissions, especially those arising from oil and gas extraction processes like transit pipes. An area of great potential is the advancement of dependable sensors for the detection and reduction of methane leaks, with the aim of averting dangerous consequences. An open-path differential optical absorption spectroscopy (DOAS) system was described in this paper for the purpose of detecting CH4 gas emission at a moderate temperature. An in-depth examination of the absorption lines was conducted to determine the optimal wavelength for measurement. The Near Infrared (NIR) region was identified as the most suitable wavelength for detecting methane. Multiple measurements were conducted at different integration times (1 second, 2 seconds, and 3 seconds) to ensure reliability and determine the optimal integration time for the CH4 detection system. The DOAS system has the capability of precisely detecting methane concentrations at 1M ppm in the NIR region with a quick integration time of 2 seconds.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Methane detection; DOAS technique; optical sensor; NIR region |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Faculty/Division: | Institute of Postgraduate Studies Faculty of Electrical and Electronic Engineering Technology |
| Depositing User: | Mrs Norsaini Abdul Samat |
| Date Deposited: | 19 Feb 2025 01:57 |
| Last Modified: | 19 Feb 2025 01:57 |
| URI: | http://umpir.ump.edu.my/id/eprint/43855 |
| Download Statistic: | View Download Statistics |
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