[25p-12B-1~13] 3.7 Optical measurement, instrumentation, and sensor (formerly 3.8)

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[25p-12B-4] Optimization of TDLAS Measurement Method for Hydrogen Leak Detection

〇Alifu Xiafukaiti^1,2, Nofel Lagrosas², Masakazu Ogita³, Nobuhiko Ooi³, Shigeru Yamaguchi⁴, Tatsuo Shiina² (1.Mitsubishi Electric Corp., 2.Chiba Univ., 3.Shikoku Research Institute Inc., 4.Tokai Univ.)

Keywords:

Gas sensing,TDLAS,Hydrogen

Hydrogen gas, as a next-generation clean energy source, is expected to replace fossil fuels and be used for automotive fuel, electricity generation, supply, and storage of thermal energy. Ensuring safety is crucial for the widespread use of hydrogen gas in daily life, and the development of highly sensitive and responsive hydrogen gas detection sensors is emphasized. While gas suction-type hydrogen gas detection sensors are commercially available, it is difficult to identify leakage points in terms of response speed and measurable concentration range. This study aims to establish practical hydrogen gas leak detection technology by achieving high sensitivity, high resolution, and real-time measurement using tunable diode laser absorption spectroscopy (TDLAS). In this report, we describe the optimization of the TDLAS measurement method to achieve measurement over a wide concentration range, from detecting trace amounts of hydrogen gas to evaluating its purity.