Real-time, In situ Measurement of Fuel and Crossover Methanol Vapor Concentration of a Vapor-Fed Passive Direct Methanol Fuel Cell Using Laser Absorption Spectroscopy

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概要

• 論文の詳細を見る

• The concentration of methanol vapor in a vapor-fed direct methanol fuel cell (DMFC) is measured using absorption spectroscopy with a 3.39 μm He–Ne laser. A noise correction method is applied to compensate for the higher noise levels associated with the He–Ne laser. Based on this, real-time, in situ measurement of the methanol vapor concentration has been performed simultaneously in a methanol vapor transport layer and on the cathode surface (air transport layer) under various DMFC operating conditions. The change in methanol vapor concentration and cell performance is measured at various galvanostatic conditions and the impact of methanol concentration in the methanol transport layer on the methanol crossover amount is analyzed. Moreover, the changes of methanol vapor concentration are measured when the fuel supply is suspended during fuel cell operation. No previous method has been able to measure the concentration of the methanol vapor in the methanol transport layer and the air transport layer in real-time with noncontact. The results from this study can contribute to the development of stable and high-power vapor-fed DMFCs.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2010-02-25

著者

• Song Soonho

  Department Of Mechanical Engineering Yonsei University

• Jinho Kim

  Korea Institute of Ceramic Engineering and Technology, 30 Gyeongchung Rd, Sindun-myeon, Icheon, Gyeonggi-do 467-843, Korea

• Sungmoo Heo

  The Graduate School, Department of Mechanical Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea

• Chung Jinhwa

  The Graduate School, Department of Mechanical Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea

• Heo Sungmoo

  The Graduate School, Department of Mechanical Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea

• Sangkyun Kang

  Samsung Advanced Institute of Technology, Mt. 14-1 Nongseo-dong, Giheung-gu, Yongin, Gyeonggi-do 449-712, Korea

• Kyounghwan Choi

  Samsung Advanced Institute of Technology, Mt. 14-1 Nongseo-dong, Giheung-gu, Yongin, Gyeonggi-do 449-712, Korea

• Jinhwa Chung

  The Graduate School, Department of Mechanical Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea

• Soonho Song

  Department of Mechanical Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea

関連論文

• A Study on Time-Resolved Laser Induced Incandescence Analysis Method for the Measurement of Primary Particle Size in Diesel Exhaust
• Formation of NOx from Air and N2/O2 Mixtures Using a Nonthermal Microwave Plasma System
• Real-time, In situ Measurement of Fuel and Crossover Methanol Vapor Concentration of a Vapor-Fed Passive Direct Methanol Fuel Cell Using Laser Absorption Spectroscopy

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