Fiber methane gas detector based on harmonic detection and application in ventilation air methane power generation

Yanfang Li; Yubin Wei; Ying Shang; Yanjie Zhao; Tingting Zhang; Weisong Zhao; Chang Wang; Tongyu Liu

doi:10.1117/12.865735

12 October 2010 Fiber methane gas detector based on harmonic detection and application in ventilation air methane power generation

Yanfang Li, Yubin Wei, Ying Shang, Yanjie Zhao, Tingting Zhang, Weisong Zhao, Chang Wang, Tongyu Liu

Author Affiliations +

Proceedings Volume 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 76565D (2010) https://doi.org/10.1117/12.865735
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

A fiber methane detector based on spectrum absorption is reported. The methane monitor use a distributed feedback diode lasers(DFB) which is near infrared spectroscopy as the optic source, we realized online harmonic detection of the methane. The advantages of this detector include high precision, elimination of interference from humidity and other gases as well as long recalibration cycle. The detection of CH4 is very important in the methane power generation. Especially the detection of the tail gas with high temperature is the dependence to judge the generator. In this paper, we give some data witch gained from the local of methane power generation. The data reach an agreement with the measurements of the sensor using in mine. And the detector has the function of self reference, so the detector is more depended. This proved that the fiber methane detector can meet the needs of the generator. It have some contribution to the production safety of the mine and the energy saving and emission reduction and the environmental protection.

Citation Download Citation

Yanfang Li, Yubin Wei, Ying Shang, Yanjie Zhao, Tingting Zhang, Weisong Zhao, Chang Wang, and Tongyu Liu "Fiber methane gas detector based on harmonic detection and application in ventilation air methane power generation", Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76565D (12 October 2010); https://doi.org/10.1117/12.865735

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